YC Summer 2017 (S17) companies
As of Mar 26, 2026, 125 companies · 229 founders
Summer 2017 at a glance
- 125
- 229
- 1.8
- 11
Most common tags
- Artificial Intelligence15 · 12%
- SaaS14 · 11%
- Fintech13 · 10%
- Marketplace12 · 10%
- B2B10 · 8%
- Climate6 · 5%
Where they are based
- SF Bay Area66 · 53%
- New York8 · 6%
- London6 · 5%
- Bengaluru5 · 4%
Companies in Summer 2017
| What they do | Market | Founders | Links | ||
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10 By 10 builds a marketplace that connects tech employers directly with candidates pooled across multiple recruiting agencies, using AI to match job requirements against that aggregated talent supply. It targets companies hiring technical roles, replacing the fragmented process of engaging several agencies separately or searching job boards. Qualified, interested candidates are surfaced to employers without upfront cost or lengthy setup. | B2B | 5 |
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Advano builds advanced battery materials using nanotechnology and chemical engineering to extend battery longevity. The company targets the energy storage market, where conventional battery materials limit the performance and lifespan of rechargeable cells. Its work reduces the need for traditional electrode material formulations that degrade quickly under repeated charge cycles. | Industrials | 25 |
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Aecore is a commercial general contractor serving owners, tenants, and brokers on projects ranging from tenant improvements to ground-up builds. It combines an in-house design team, project managers, and proprietary cost-tracking software to handle conceptual budgeting, design-build coordination, and construction under one roof. This replaces the fragmented hand-offs between separate architecture firms, estimators, and general contractors that typically slow commercial projects and inflate costs. | Real Estate and Construction | 6 |
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Airthium builds high-temperature heat pumps for food, beverage, textile, chemical, and paper factories that need process heat in the 100–250°C range. The system pairs electric heat pump output with an existing gas boiler, switching in real time to whichever source is cheaper. It targets the work currently done by gas-fired steam boilers, cutting both fuel costs and CO2 emissions without requiring a full boiler replacement. The underlying engine is a Stirling-cycle design engineered to reach efficiency levels well above the current industry standard. | Industrials | 18 |
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And Comfort sells apparel directly to consumers under its own brand. The company operates in the direct-to-consumer fashion space, cutting out traditional retail intermediaries to bring clothing straight to shoppers. | Consumer | 2 |
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AssemblyAI builds speech-to-text and speech understanding APIs for developers and product teams at voice AI companies. Its platform covers transcription, real-time speech processing, voice agents, call analytics, and medical transcription, replacing the need to train or host proprietary speech models. Customers use it to add voice capabilities to products across notetaking, sales coaching, healthcare, and contact centers. | B2B | 65 |
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Audm converts long-form print journalism into professionally narrated audio, delivered through a mobile app. Voice actors record full-length magazine and newspaper articles, replacing the act of reading with a high-quality listening experience. The product targets readers who want to consume in-depth journalism while commuting, exercising, or away from a screen. | Consumer | 10 |
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AutoHub builds a vehicle acquisition platform for automotive dealerships, turning service drive customer interactions into a repeatable inventory sourcing workflow. It replaces reliance on wholesale auctions by helping dealer teams appraise, track, and convert trade-in opportunities directly from customers already on-site. The platform handles appraisal accountability, deal progression, and performance visibility in one workflow. | B2B | 2 |
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BillionToOne builds single-molecule DNA diagnostics for prenatal screening and oncology. Its proprietary Quantitative Counting Templates technology directly measures sparse disease-causing DNA fragments from a single blood draw, replacing the need for invasive procedures. The Unity Complete prenatal test screens fetal risk for both recessive conditions and chromosomal abnormalities from maternal blood, while the Northstar liquid biopsy tests guide cancer therapy selection and track treatment response in real time. | Healthcare | 300 |
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Bloom Institute of Technology runs an online coding school that trains adults for careers in software development and data science, replacing the need for traditional upfront tuition. Students complete full-stack web development or AI-focused curricula at no initial cost, then repay only if they land a job above an income threshold, and owe nothing if they do not. | Education | 50 |
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Bumpline connects customers to on-demand tailoring and alterations services, replacing the need to find and visit a local tailor independently. The platform operates as a marketplace, matching people who need garment adjustments with tailors who fulfill the work. | Healthcare | 2 |
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bxblue operates an online marketplace connecting Brazilian pensioners and government employees to personal loan offers. These borrowers have guaranteed income, making them a distinct credit segment that was previously served almost entirely through offline channels. bxblue brings that lending market onto a single digital platform, replacing branch visits and paper-based broker networks. | Fintech | 28 |
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Caelum Health builds digital therapeutics for chronic digestive diseases, including IBS, replacing pharmaceutical treatment with a software-driven care plan. The product combines behavioral science, physician guidance, and personalized coaching to deliver a clinically validated treatment tailored to each patient. It targets patients managing digestive conditions who would otherwise rely on drugs or generic clinical protocols. | Healthcare | 2 |
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Cairns Health builds a voice-based care companion platform for people managing chronic health conditions. Patients interact by voice to receive medication reminders, symptom checks, and behavioral prompts, while a radar-equipped home device passively tracks heart rate, breathing rate, and sleep stages without a wearable. The platform replaces manual check-ins and fragmented care coordination by connecting patients, caregivers, and clinical teams through continuous, ambient monitoring. | Healthcare | 17 |
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Cambridge Cancer Genomics builds software that helps oncologists select treatments for individual cancer patients using clinical and genomic data. The platform identifies data-driven biomarkers that predict how a patient will respond to a given drug, replacing manual, experience-based treatment decisions with a systematic, evidence-driven approach. | Healthcare | 25 |
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Candidate.ly builds an AI-powered platform for recruitment and staffing agencies, sitting on top of existing ATS systems such as Bullhorn. It searches agency candidate databases using plain language, formats resumes into client-ready presentations, and delivers candidates through branded client portals, replacing manual resume formatting, email-based submissions, and ad hoc client feedback collection. | B2B | 9 |
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CarDash runs a managed marketplace for car maintenance and repair, serving individual car owners who want to skip the dealership or shop visit. Mechanics come to the customer's home or office, perform the work on-site, and CarDash coordinates the entire job, including upfront pricing, so owners are never left negotiating or guessing at the final bill. | Consumer | 12 |
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Carrot Fertility builds fertility benefits programs that employers offer to their workforce, covering egg freezing, IVF, IUI, surrogacy, adoption, pregnancy, menopause, and men's health across 195+ countries. It replaces the patchwork of fragmented, hard-to-navigate fertility care options with a single, employer-sponsored platform that handles clinical guidance, medication sourcing, and payment. The product targets HR and benefits teams at companies of any size who want to add or improve fertility coverage without building it themselves. | Healthcare | Not listed |
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Cashfree Payments builds payment collection and disbursement infrastructure for Indian businesses, replacing fragmented banking workflows with a unified API layer. Its products cover payment gateway acceptance, bulk payouts, UPI and card stacks, virtual account reconciliation, and automated KYC, serving merchants across e-commerce, food delivery, mobility, and fundraising. Customers include Zomato, Swiggy, Nykaa, Xiaomi, CRED, and Zepto. | Fintech | 200 |
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CocuSocial connects consumers with cooking, baking, and tasting classes hosted at local restaurants and hotels. The platform lets people browse and book culinary experiences for couples and groups, replacing the manual work of finding and coordinating with individual venues. It targets everyday consumers looking for social, hands-on food experiences in their city. | Consumer | 10 |
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Commissary Club (formerly 70 Million Jobs) builds an AI-powered community platform for people with criminal records, connecting them to employment, housing, medical care, legal services, and peer support. Each member gets a personal AI agent that takes action on their behalf: submitting job and housing applications, making referrals, and arranging introductions. The platform replaces the fragmented, manual work of navigating reentry resources across multiple providers and services. | Consumer | 2 |
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Covetly builds a peer-to-peer marketplace for collectors buying and selling authenticated collectibles, including vinyl toys, comics, and Funko Pop figures. It targets hobbyists seeking rare and niche items that are difficult to source through general retail or auction platforms. The platform replaces fragmented, trust-deficient trades across forums, social groups, and generalist resale sites. | Consumer | 3 |
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D-ID builds a digital human platform that lets organizations produce AI-generated videos and deploy interactive avatars for communication at scale. Creators and developers use its deep-learning models to animate still photos, generate on-screen personas, and run real-time multilingual conversations, replacing traditional video shoots and live-agent interactions. The platform covers marketing, sales, customer experience, and learning and development use cases. | B2B | 27 |
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Darmiyan builds FDA-cleared medical AI software, BrainSee, that analyzes standard MRI scans to detect early signs of Alzheimer's disease and other neurodegenerative conditions. Its quantitative virtual microscopy reads changes in brain tissue architecture that conventional MRI interpretation misses, giving neurologists and healthcare providers a non-invasive window into disease progression before symptoms become severe. The software replaces the need for invasive or costly diagnostic procedures currently used to assess neurodegeneration at early stages. | Healthcare | 8 |
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Dharma Labs builds an Ethereum wallet that connects US bank accounts directly to decentralized exchanges such as Uniswap, letting retail users buy crypto tokens without routing through a centralized exchange. The product replaces the multi-step process of buying on a centralized platform and manually bridging funds into DeFi, compressing it into a single mobile app flow. | Fintech | 14 |
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disclosures.io builds listing management software for residential real estate agents and brokerages, centralizing offers, disclosures, and listing documents in a single dashboard. It replaces the back-and-forth of emailed PDFs and scattered paperwork by letting agents receive, compare, and respond to offers in one place and share a live view directly with sellers. The product covers the full seller-side workflow from listing preparation through offer acceptance. | Real Estate and Construction | 10 |
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Dropleaf offers a subscription library of indie PC games, giving players unlimited access to a curated catalog in exchange for a flat recurring fee. It serves players who struggle to find games suited to their tastes and indie developers who lack the marketing budgets to compete for visibility on mainstream storefronts. The platform replaces one-off purchases and algorithm-driven discovery on larger platforms with a quality-focused curation and matching system. | Consumer | 2 |
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Eduflow builds a platform for instructors to design and run active online learning experiences, replacing passive video-playlist formats with structured, participatory activities. It serves educators and trainers across K-12 schools, universities, and corporate learning teams. Learners become active contributors rather than passive viewers, engaging through activities that instructors configure directly in the tool. | Education | 12 |
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Elucd builds a civic sentiment platform that gives city governments near real-time reads on how residents feel about public services and local leadership. It delivers this through polling conducted via mobile ads, replacing slower, costlier traditional survey methods. The result is a continuous signal on public opinion that officials can act on rather than wait months to receive. | Government | 8 |
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Entocycle builds automated, vertically stacked insect farms that produce protein for fish and poultry feed. Its climate-controlled, AI-monitored facilities turn organic waste streams into black soldier fly biomass at industrial scale, replacing soymeal and fishmeal for agricultural producers. The platform combines modular hardware, real-time insect tracking, and full automation to standardize yields across sites. | Industrials | 13 |
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Enzyme builds cloud-based quality management system software for medical device, digital health, and biopharma companies navigating FDA approval and ongoing regulatory compliance. The platform covers document control, change control, risk management, CAPA, audits, and the full premarket-to-postmarket lifecycle, replacing the manual processes and disconnected tools that life science teams typically cobble together. Enzyme also provides QA and RA consulting to support companies through the regulatory process directly. | Healthcare | 32 |
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Escher Reality builds a backend API for augmented reality applications, serving developers who need infrastructure to power AR experiences across consumer and gaming products. The API handles the server-side complexity of AR, replacing the need for teams to build and maintain that foundational layer themselves. | Consumer | 2 | Not listed | ||
Fam builds a group video calling social network for mobile users who want to hang out with existing friends or meet new ones on camera. The app replaces one-on-one or text-based social interaction with real-time, multi-person video sessions. It targets a consumer audience looking for a more social, face-to-face alternative to messaging. | Consumer | 11 |
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Fastpad builds hiring software for companies recruiting in India, filtering out low-quality applicants so that employers see concise profiles of genuine candidates. The product targets a recruiting market crowded with irrelevant applications, replacing the manual work of sifting through noisy, unvetted submissions. | B2B | 3 |
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Fat Llama runs a peer-to-peer rental marketplace where people borrow everyday items from other people nearby, covering categories from camera lenses and power tools to musical instruments and bikes. Every transaction is fully insured, removing the friction that previously made private lending impractical. Borrowers get a cheaper alternative to buying or visiting a rental shop; owners earn money from possessions that would otherwise sit idle. | Consumer | 41 |
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FAZZ builds payment infrastructure and banking services for businesses across Indonesia, Singapore, and 10-plus other markets. It gives companies a single layer to accept payments, hold funds, transfer money, access credit, and run back-office finance, replacing a patchwork of banks, payment processors, and manual tools. Customers range from small warung shop owners and startups to mid-market and enterprise clients. | Fintech | 500 |
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Feather rented furniture to city dwellers and businesses on a subscription basis, replacing the need to buy, move, or dispose of furniture. Customers could swap pieces, add items, or return them at any time, with returned furniture refurbished and recirculated rather than discarded. Feather has since merged into Fernish, which focuses on staging and furniture rental for businesses. | Consumer | 125 |
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Flock Safety builds a public safety operating system that connects private communities and law enforcement to investigate and reduce crime. Its hardware, including license plate readers, video cameras, audio sensors, and drones, feeds real-time evidence into FlockOS, replacing manual investigation work with automated detection and lead generation. Customers span police departments, residential HOAs, retail chains, schools, and property managers. | B2B | 1000 |
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Flowspace runs a fulfillment platform for e-commerce brands, combining its OmniFlow software with a network of over 130 warehouse locations across the country. Brand operators use it to manage inventory, orders, and shipping across direct-to-consumer and retail channels from a single interface. It replaces the fragmented combination of third-party logistics providers, spreadsheets, and disconnected tools that brands otherwise stitch together to run fulfillment. | B2B | 48 |
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FollowUpThen turns an email address into a timed reminder: address any email to a time-encoded address like "friday@followupthen.com" and that email returns to your inbox at that moment. Salespeople, managers, and individuals use it to track prospects, delegate tasks, and clear their inboxes without installing any software. It replaces manual calendar entries, sticky notes, and task-manager apps for anyone who lives in email. | B2B | 1 |
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Forever Labs collects and stores adult stem cells for individuals who want to preserve their biology for future regenerative therapies. A physician performs a minimally invasive procedure to harvest the cells at their current age, and Forever Labs banks them in ISO-accredited facilities until the customer or their doctor needs them. The service replaces the default of having no banked cells available when regenerative treatments, established or emerging, become relevant. | Healthcare | 12 |
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Gameday builds a sports prediction game where fans pick outcomes moment by moment within a single game, then compete on live leaderboards. It targets casual sports fans who find traditional fantasy sports too complex or time-consuming, replacing season-long roster management and daily lineup decisions with quick, in-game prediction slips played through a chat-friendly interface. | Consumer | 2 |
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Gamelynx develops competitive games built from the ground up to be watchable across platforms. The target audience is the competitive gaming and esports market, where existing titles often create a poor spectator experience. Gamelynx replaces the fragmented, hard-to-follow viewing experience of traditional esports titles with games designed so that watching is as compelling as playing. | Consumer | 5 |
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Gem builds an AI-powered recruiting platform for corporate talent acquisition teams, consolidating sourcing, applicant review, candidate relationship management, and hiring analytics into a single workspace. It replaces the fragmented stack of standalone ATS tools, spreadsheets, and manual outreach by pulling candidate data from email, LinkedIn, and other networks into one unified record. Recruiters use Gem to automate repetitive coordination work and make data-driven decisions across the full hiring cycle. | B2B | 200 |
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Goodcover sells renters insurance as a digital cooperative, where members' premiums are pooled to pay claims and any surplus is returned as an annual dividend. Operating as a Managing General Agent with a fixed-fee structure, it cuts out sales agents and traditional marketing spend to price policies significantly below conventional carriers. Coverage includes replacement-cost protection, all-risk coverage for high-value items, and flood damage from neighboring units, replacing the opaque, agent-driven policies that dominate the standard market. | Fintech | 1 |
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Goosebump helps electronic music fans discover live events through a conversational interface on Facebook Messenger. Users message the bot to get event recommendations, replacing the work of searching across multiple ticketing sites, venue pages, and social feeds. The product focuses on the electronic music scene and surfaces relevant shows in a single exchange. | Consumer | 2 |
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Greo builds a mobile video app that lets consumers discuss current events through short-form video exchanges. It replaces text-based comment threads and static news feeds with a conversational video format centered on civic and social topics. | Consumer | 2 |
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Guggy builds contextual messaging tools for consumer and developer audiences. Its core API parsed text messages, including slang and short conversational fragments, to generate matching GIF responses in real time, replacing manual GIF searches inside chat apps. It also launched Bits, a mobile app that lets actors, comedians, and casual creators script, time, and compose short comedic video scenes without professional production tools. | Consumer | 2 |
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Guilded builds a chat and community platform for gaming groups, replacing basic group chat with tools purpose-built for organized play: integrated event calendars, threaded forums, and server management in one place. It targets gaming communities that outgrow general-purpose messaging apps and need coordination features alongside real-time chat. | Consumer | 30 |
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Headstart builds a machine-learning recruiting platform for employers that screens and ranks candidates based on personality, behaviours, strengths, and motivations rather than credentials alone. It replaces manual CV screening, letting hiring teams filter large applicant pools instantly and surface candidates who fit a specific role and company culture. The platform also targets diversity outcomes, giving recruiters visibility into talent they would otherwise overlook. | B2B | 44 |
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Helium Health builds software and financial products for African healthcare providers, payers, and governments. Its core product, HeliumOS, replaces paper-based hospital administration with an electronic medical records and hospital management system. Alongside that, it offers patient-facing tools, a lending product for clinic operators, and a data and advisory layer used by public health organizations and governments to shape policy. | Healthcare | 110 |
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HelpWear builds wearable cardiac monitoring hardware for patients managing heart conditions at home. Its first product, the HeartWatch, delivers continuous heart tracking and an integrated emergency contact system, replacing periodic clinical monitoring with always-on, remote oversight. The target users are patients and the physicians overseeing their care outside a hospital setting. | Healthcare | 2 |
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Honeydue builds a personal finance app for couples, letting partners link their bank accounts, track bills and balances, and comment on specific transactions together. It replaces the friction of logging into separate accounts or hashing out finances over dinner with a shared, real-time view of the household's money. | Fintech | 2 |
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Indivio builds video creative automation software for B2B marketing teams. It lets teams produce and deliver personalized, dynamic video content at scale, replacing manual video customization workflows. The product is aimed at marketers who need to tailor video assets to different audiences without rebuilding each version from scratch. | B2B | 8 |
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Jerry builds a car ownership super app that consolidates insurance shopping, auto refinancing, maintenance tracking, and driver safety into a single platform for individual car owners. It replaces the manual process of filling out forms across multiple insurers by pulling real quotes from over 100 carriers in seconds, completing the purchase, and canceling the old policy on the customer's behalf. Beyond insurance, Jerry handles repair quote gathering and service reminders, removing the legwork car owners would otherwise do themselves. | Fintech | 288 |
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Just Appraised builds AI-powered software for county tax assessors, clerks, and citizen services offices. It automates the paper-heavy workflows that surround real estate ownership changes, deed processing, taxpayer communications, and valuation appeals, work that government staff previously handled manually. The result is faster updates to the tax roll and a digital-first experience for both office employees and the taxpayers they serve. | Government | 40 |
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Leon & George sells premium indoor and outdoor plants, ceramic planters, and plant care accessories direct to consumers across the United States. Customers shop by light condition, size, or plant family, and receive plants via local delivery in California or custom-packaged nationwide shipping. The company replaces the traditional nursery trip with a curated, home-delivery experience for buyers who want quality plants without sourcing or logistics friction. | Consumer | 10 |
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Long Term Stock Exchange operates an SEC-regulated national securities exchange built to connect companies with investors focused on long-term value creation, alongside a full-lifecycle cap table management product for private startups. The exchange gives public companies an alternative listing venue with governance standards designed for durability over short-term results. The cap table product, LTSE Equity, replaces manual equity tracking and planning work for startups from formation through IPO. | Fintech | 68 |
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LotusPay builds a recurring payments platform for businesses in India, letting them collect loan repayments, subscription fees, donations, and other regular charges directly from customers' bank accounts via eNACH mandates. It replaces manual payment collection and paper-based NACH authorization by automating mandate creation, customer approval, scheduled debits, and same-day settlement in one platform. LotusPay was acquired by Juspay in January 2024. | Fintech | 5 |
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Lyrebird builds AI-powered audio and video editing software under the Descript brand, aimed at podcasters, marketers, and media teams. The product lets users edit recordings by editing a text transcript, and layers in tools for voice cloning, AI avatars, captions, screen recording, and multichannel audio, replacing traditional timeline-based editing workflows. | B2B | 13 |
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May Mobility builds and operates autonomous shuttle and ride-hail vehicles for cities, rural communities, and commercial campuses. Its Multi-Policy Decision Making (MPDM) system uses real-time reinforcement learning to adapt while driving, rather than relying solely on pre-collected training data. The vehicles serve as a complement to existing public transit, replacing fixed-route human-driven shuttle operations. | Industrials | 260 |
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Meetingbird builds calendar and scheduling software for individuals and teams, replacing the back-and-forth of coordinating meetings manually. It gives users tools to schedule, organize, and run meetings directly from a shared calendar interface. The product targets professionals at companies who need to manage high volumes of internal and external meetings without leaving their calendar. | B2B | 2 |
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Modern Fertility brings clinical-grade reproductive hormone testing directly to women at home, outside the fertility clinic setting. The tests give women data on their ovarian reserve and related hormone levels earlier in life, before they are actively trying to conceive. Modern Fertility is now part of Ro, a broader direct-to-consumer health platform. | Healthcare | 25 |
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Modular Science builds tools that help farmers adopt sustainable farming practices. The company targets the agriculture industry, reducing the manual complexity farmers face when shifting away from conventional methods. | Industrials | Not listed |
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Muzz builds a dating and marriage app for single Muslims worldwide, replacing the traditional biodata CV and family matchmaking process with a self-directed mobile platform. Users can view profiles, match, chat, and video call while maintaining privacy controls suited to Islamic courtship norms. The product serves a global Muslim audience seeking a halal path to marriage. | Consumer | 104 |
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Mystery.org builds science curriculum for U.S. elementary schools, targeting the multi-subject classroom teachers who lack the time and depth to prepare engaging science lessons on their own. Its core product, Mystery Science, delivers ready-to-teach video lessons and hands-on activities built around the questions children actually ask, replacing the lesson-planning and sourcing work that otherwise falls entirely on the teacher. The company is expanding into a broader video explanation library that covers the full range of children's curiosity beyond the standard school curriculum. | Education | 53 |
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Mystro builds an automation app for rideshare drivers who work across Uber, Lyft, and other on-demand platforms simultaneously. The app automatically switches between platforms, filters trip requests by profitability, and accepts or rejects rides without the driver touching their phone. It replaces the manual juggling of multiple apps, letting drivers capture better trips across platforms while keeping their eyes on the road. | Consumer | 6 |
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NextDrop builds a data platform for urban water distribution in emerging markets, serving both municipal utilities and city residents. It crowdsources pipe-level water data, runs it through algorithms, and surfaces a live feed of pressure, contamination, and outage events so utility engineers can act in real time. Residents receive SMS alerts before water arrives or when supply is disrupted, replacing the guesswork of unreliable municipal schedules. | Industrials | 11 |
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Nimble builds a hiring platform for K-12 school districts, state education agencies, and principals, replacing manual, fragmented recruitment processes with a unified system for posting roles, sourcing teachers, and tracking applicants. Predictive analytics surface the strongest candidates, while a statewide vacancy-tracking tool gives education leaders real-time visibility into teacher shortages. The work it replaces: spreadsheet-driven hiring, siloed job boards, and reactive staffing decisions. | Education | 25 |
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Nobell Foods makes cheese and other dairy products using proteins derived from plants rather than animals. Its products target mainstream consumers who want conventional dairy taste and price points without the need for livestock. The company replaces traditional dairy production, not consumer behavior. | Consumer | 58 |
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Officely builds hybrid office management software for teams navigating flexible work schedules. Employees use it to book desks, meeting rooms, and parking, and to see who is coming into the office on a given day. It replaces ad-hoc spreadsheets and disconnected tools, while giving office managers structured analytics on how physical space is actually used. | B2B | 11 |
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Oncobox builds a molecular profiling diagnostic for oncologists treating late-stage cancer patients. Its platform, Oncobox Dx, analyzes tumor DNA, RNA, and molecular pathways to rank the effectiveness of over 170 targeted and immunotherapy drugs for each individual patient. It replaces the current trial-and-error approach to drug selection, where oncologists have no data-driven basis for choosing among a large and costly set of options. | Healthcare | 11 |
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OneLocal builds a digital marketing and CRM platform for local service businesses, handling website creation, Google search visibility, call answering, ad management, and lead follow-up in one connected system. An AI layer runs these tasks automatically, with human marketing experts overseeing the work, replacing the patchwork of agencies, tools, and manual follow-up that small operators typically juggle on their own. | B2B | 90 |
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Opearlo designs and develops custom voice applications for Amazon Alexa and Google Assistant, serving businesses that want a presence on smart speaker platforms. The product handles the design, development, and deployment work that companies would otherwise need to build in-house or piece together across multiple vendors. | Consumer | 2 |
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Passerine Aircraft builds electric drones that use a jumping mechanism to achieve flight speed, bypassing the conventional runway or vertical-lift approach to takeoff. The aircraft targets industrial and commercial drone applications where conventional fixed-wing or multirotor limitations create operational constraints. The design replaces heavier, more complex propulsion and launch systems with a ground-launch method that reduces energy draw at the most power-intensive phase of flight. | Industrials | 2 |
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Pathrise runs a career accelerator for job seekers, providing weekly coaching, a professional network, and job search automation tools to help candidates land roles faster. It replaces the unguided, solo job hunt with structured mentorship and software support throughout the search process. | Education | 55 |
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Percept.AI builds an AI-powered customer support agent for businesses, using deep learning and natural language processing to handle customer inquiries. The product targets customer support teams, automating the work those teams would otherwise handle manually. It delivers end-to-end support automation, reducing the need for human agents on routine interactions. | B2B | 7 |
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Piggy builds a mobile app that lets Indian retail investors buy and track mutual funds directly, cutting out brokers and the commissions they charge. Users can invest in any fund available in India in a few taps and monitor their existing holdings in one place. The product replaces the traditional distributor-led process for purchasing mutual funds. | Fintech | 2 |
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Plasticity builds natural language processing APIs for developers, government agencies, and enterprise teams in technology, law, and medicine. Its tools parse unstructured text to extract entities, relationships, and meaning, replacing manual text analysis and custom NLP engineering. Products include a language engine, a knowledge graph, and a dialogue engine, available as hosted APIs or on-premise deployments. | B2B | 2 |
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Polly builds a social polling app that lets teens create and share multiple-choice polls on Snapchat and Instagram Stories. Users post polls to their existing social feeds, replacing informal back-and-forth questions with structured, shareable votes. Brands and influencers use the same format to collect direct consumer opinions from teen audiences. | Consumer | 3 |
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Pop Meals builds and operates a chain of chef-free quick-service restaurants and cloud kitchens across Southeast Asia, serving affordable Malaysian comfort food to everyday consumers. Recipes are standardized and centrally produced, removing the need for trained kitchen staff at each outlet. The model replaces the traditional full-service restaurant setup with a leaner, tech-enabled operation spanning delivery, pickup, and dine-in. | Consumer | 153 |
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PreDxion Bio builds a rapid, saliva-based antigen detection platform for SARS-CoV-2 and other biomarkers, targeting public health officials, policymakers, and critical-care clinicians. Its core sensor technology, spun out of the University of Michigan, uses semiconductor fabrication processes to enable high-volume diagnostic testing and near real-time cytokine monitoring in critically ill patients. The platform replaces slower laboratory assays for immune-response tracking, including detection of cytokine release syndrome in CAR-T therapy patients. | Healthcare | 6 |
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Prelim builds digital account-opening software for banks and credit unions. Financial institutions use it to move customer onboarding online, replacing paper-based and branch-dependent account opening workflows. The product handles the intake, verification, and processing steps that front-line staff and customers previously worked through manually. | Fintech | 36 |
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Prism Labs builds consumer-focused products based in San Francisco. Beyond the company name and industry, no further details about its product, target customer, or the work it replaces are available from public sources. | Consumer | 5 |
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PullRequest, now operating as HackerOne Code, delivers code review as a service to software engineering teams. It combines proprietary AI, which flags high-risk changes, with a network of human security experts who validate findings before surfacing them to developers. This replaces both manual security review processes and standalone automated scanning tools that generate high volumes of false positives. | B2B | 11 |
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Py builds mobile and web tools that teach coding and technical skills to people pursuing careers in tech, replacing passive video courses with interactive lessons and quizzes. Its hiring product, Py for Work, lets employers screen candidates through practical, role-relevant assessments rather than resume filtering or abstract puzzles. The two products together address both sides of the skills gap: learners building competency and employers evaluating it. | Education | 3 | Not listed | ||
Pyka designs, manufactures, and operates autonomous electric aircraft for agriculture and logistics, targeting the highest-value and most hazardous aerial jobs first. Its Pelican aircraft handles crop protection for farmers and agricultural services providers, replacing conventional crewed spray planes. Its DropShip cargo platform serves logistics, defense, and humanitarian missions across multiple continents, eliminating the need for crewed aircraft on remote or high-risk delivery routes. | Industrials | 75 |
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Rabbet builds software for real estate developers and construction lenders to manage the financial administration of construction projects. For developers, it connects budgets, documents, and draw packages in one place; for lenders, it standardizes borrower submissions and surfaces compliance risks across a loan portfolio. The platform replaces manual document handling and spreadsheet-based tracking that slows draw approvals and obscures project financial status. | Real Estate and Construction | 23 |
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Relationship Hero connects individuals and couples with certified relationship coaches for on-demand, one-on-one sessions delivered via chat, phone, or video. Clients bring concrete situations: dating uncertainty, communication breakdowns, infidelity, or breakups. The service replaces generic self-help content and the long wait times of traditional therapy with personalized, actionable guidance available on the client's schedule. | Consumer | 100 |
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Releaf Earth converts palm kernel shells, a byproduct of oil palm processing, into biochar that permanently sequesters CO2 and improves soil fertility for African smallholder farmers. The company operates its own patented de-shelling technology, called Kraken, to source feedstock directly from rural farmers, then runs that material through vetted pyrolysis systems to produce verified biochar carbon removal credits. It replaces imported soil amendments and unverified offset methodologies with domestically produced, MRV-certified biochar at industrial scale. | Industrials | 100 |
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Rev Genomics develops novel plant cultivars for high-value crops using whole genome selection, molecular genetics, advanced tissue culture, and proprietary bioinformatics. It sells breeders, cultivators, and seed banks a faster path to differentiated, biochemically distinct plant phenotypes, replacing the slow, trial-heavy process of traditional phenotype hunting. Cultivars and associated intellectual property are offered through licensing agreements. | Healthcare | 8 |
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Ribbon Health builds a healthcare data infrastructure platform that aggregates information on physicians, insurance plans, and cost and quality of care from thousands of sources. Health insurers, medical providers, and digital health companies use it to power accurate provider directories, referral management, and care navigation tools, replacing manual data assembly and bespoke integrations. A single API connects into each organization's existing systems and continuously refines data accuracy as it spreads across users. | Healthcare | 91 |
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RideAlong builds software for patrol officers that surfaces critical information about individuals with mental illness at the point of contact. Officers get person-specific de-escalation tactics and service referral options directly at the scene, replacing manual lookups and generic crisis protocols. The tool sits at the intersection of public safety and mental health response, giving first responders context that would otherwise be unavailable in the field. | Government | 2 |
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Roofr builds an all-in-one sales platform for roofing contractors, covering the full workflow from first contact to closed deal. Contractors use it to pull satellite or drone-based roof measurement reports, generate proposals, collect e-signatures, send invoices, order materials, and manage their pipeline in a single CRM. It replaces a patchwork of manual measurement work, generic proposal tools, and disconnected billing software. | Consumer | 40 |
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Routable builds a B2B payments platform for finance teams that run high volumes of outbound payments. It handles the full accounts payable cycle, from invoice capture with AI-powered OCR through vendor onboarding, tax form collection, and final settlement across 220+ countries in 140+ currencies. It replaces manual payables workflows and disconnected vendor management tools. | B2B | 160 |
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SafeButler builds a free insurance comparison tool for individual consumers shopping for renters, auto, life, homeowner, and pet coverage. It searches across insurance providers to surface quotes in one place, replacing the manual work of visiting multiple carrier sites and filling out repeated forms. Users enter a ZIP code and insurance type to retrieve options without spam or long intake processes. | Fintech | 2 |
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Semantix builds AI tools for medical billing, automating the coding, claims, and reimbursement work that healthcare providers and billing teams handle manually. The product targets the administrative layer of healthcare revenue cycles, replacing time-intensive human review with AI-driven processing. | Healthcare | 2 |
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Sixty connects people who need hands-on help with web apps to expert contractors who join a live screenshare session on demand. Customers get real-time guidance on web design, development, and software implementation without scheduling delays or long-term commitments. It replaces the need to hire a consultant, post to a forum, or wait for vendor support. | B2B | 4 | Not listed | ||
Skyscrape develops temperature-responsive insulating fabrics that physically change thickness as ambient temperature rises and falls, with no wires or sensors. The behavior comes from the yarn structure itself: fibers expand and contract with temperature, lofting the fabric thicker in the cold and compressing it thinner in the warmth. This replaces static insulation layers that force wearers to add or remove clothing across a single day's changing conditions. | Industrials | 3 |
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Skyways builds fully autonomous, long-range cargo drones for oil and gas operators and military and defense customers. Its current aircraft flies up to 450 miles with a 30-pound payload, delivering critical parts and supplies to remote or high-risk field sites that conventional logistics cannot reliably reach. The work it replaces is manned or otherwise blocked transport on routes where range, payload, and operating conditions made same-day delivery impractical. | Industrials | 33 |
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Slik builds automated lead generation and email outreach tooling for sales teams. It targets smaller businesses that lack dedicated prospecting resources, handling the research and contact work that sales reps would otherwise do manually. | B2B | 2 |
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Social Construct designs and assembles large apartment buildings using new construction processes and technologies to reduce build time and cost. The company targets the multifamily housing market, replacing slower and more expensive conventional construction methods. Its goal is to make urban apartment living more affordable by rethinking how residential buildings are put together from the ground up. | Real Estate and Construction | 17 |
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Solve delivers on-the-ground airport assistance, covering fast track, customs, and concierge services across more than 470 airports worldwide. Travelers are met at the gate on arrival, guided through departures, and supported during transits, replacing the time and friction of navigating those processes alone. The service targets anyone moving through airports who wants a dedicated handler in place of self-service wayfinding and queue management. | Consumer | 2 |
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Sourceress builds an AI-powered recruiting service that handles candidate sourcing and outreach for companies hiring technical and professional roles. It trains custom machine learning models on each client's requirements, identifies matching candidates, and sends them personalized introductions, replacing the manual work of sourcing and initial engagement that recruiters or hiring managers would otherwise do. | B2B | 35 |
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Spect builds an AI-powered retinal screening platform that brings vision disease detection into primary care settings. It targets the hundreds of millions of diabetic patients at risk for conditions such as diabetic retinopathy and glaucoma, who currently depend on ophthalmologists to manually read fundus images. Spect replaces that specialist-dependent, clinic-heavy workflow with automated diagnosis, cutting the cost and bottleneck out of preventive eye care. | Healthcare | 7 |
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Standard AI builds a computer vision analytics platform, called VISION, for physical retailers. It connects to a store's existing camera infrastructure to track shopper behavior, including awareness, engagement, and conversion at specific in-store placements, replacing manual observation and modeled traffic estimates with continuous, automated measurement. Retailers use the output to optimize layouts, promotions, staffing, and media placements. | B2B | 150 |
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Storyboard builds AI workers for trucking fleets, serving fleet managers and compliance teams. Its platform monitors hours-of-service clocks, coaches drivers on violations before they occur, automates dispatch, and handles fuel requests by voice. It replaces manual compliance tracking, constant driver phone calls, and spreadsheet-based oversight. | Consumer | 2 |
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Sunfolding designs and manufactures balance-of-system hardware for utility-scale solar farms, with its flagship product being the T29 Horizontal Single Axis Tracker. The tracker replaces conventional solar tracking systems, offering solar farm developers and operators improved cost and performance across large installations. The founding team brings direct experience scaling and commercializing solar technology at major industry players. | Industrials | 44 |
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Sunu builds a wearable AR navigation device for blind and visually impaired users. The Sunu Nek is a neck-worn band that combines radar, haptic vibrations, and GPS audio to detect obstacles in real time and orient the wearer, replacing the white cane as the primary mobility aid for everyday navigation. | Consumer | 11 |
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Surematics builds software for commercial insurance brokers to structure and close complex deals online. It targets high-value, hard-to-place risks, such as oil rigs, where deals require multiple parties to collaborate on a single contract. The platform uses blockchain to make those multi-party agreements enforceable, replacing manual, fragmented negotiation workflows. | Fintech | 2 |
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Templarbit builds a developer-oriented security platform that protects web applications from malicious activity. It serves engineering teams at companies of all sizes, replacing the need to stitch together ad-hoc security tooling or rely solely on manual code review to catch and block threats. | B2B | 11 |
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Tesseract designs and builds spacecraft propulsion hardware for satellite operators, robotic exploration missions, and human spaceflight programs. Its product line covers off-the-shelf thrusters, multi-thruster modules, and complete turnkey propulsion systems, with custom design available for non-standard requirements. The company replaces high-toxicity heritage propellants with low-toxicity alternatives and uses modern materials and manufacturing methods to cut the cost of flight-qualified hardware. | Industrials | 6 |
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Thematic builds a customer feedback analysis platform for CX, voice-of-customer, and research teams. It ingests feedback from existing survey and conversation sources, automatically surfaces recurring themes, and delivers impact analysis that shows which issues move satisfaction metrics. The work it replaces is manual tagging, spreadsheet-based trend tracking, and ad hoc analyst reporting. | B2B | 25 |
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ThereCraft builds and operates proprietary STOVL lifting-body uncrewed aircraft to deliver cargo, ISR, and air data services worldwide. Its aircraft are designed for high-endurance, low-cost missions including shore-to-ship delivery, underway replenishment, and vertical replenishment, replacing crewed or conventional drone operations in demanding maritime and industrial contexts. | Industrials | 1 |
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tpaga builds a mobile wallet for Colombian consumers and businesses that replaces traditional bank accounts. Individual users pay bills, transfer money, make investments, buy mobile top-ups, and withdraw cash across a nationwide network, all from one app. Businesses use tpaga to collect payments via PSE, QR codes, or payment links, and to disburse payroll to workers around the clock. | Fintech | 25 |
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Truepill builds API-connected pharmacy infrastructure for life sciences companies, payers, and providers. Its platform handles prescription fulfillment, hub services, virtual pharmacy, and lab testing, letting partners embed white-labeled pharmacy experiences without building their own dispensing and patient-services operations. It replaces the need for partners to contract with separate pharmacy, logistics, and patient-support vendors. | Healthcare | 1300 |
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UpCodes builds a searchable platform that centralizes over 6,000 U.S. state and city building codes, connecting regulations to specifications and a curated product library. Architects, engineers, and construction professionals use it to navigate code compliance without manually cross-referencing jurisdictional adoptions. Building product manufacturers also use the platform to surface compliant products to design professionals at the point of specification. | Real Estate and Construction | 35 |
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Upfort sells a combined cybersecurity and cyber insurance platform to businesses, brokers, and insurers. Its software handles email protection, web filtering, phishing simulations, security training, and identity monitoring, replacing manual risk assessments and piecemeal security tooling. Carriers and agencies use Upfort's AI-driven underwriting data to quote and bind cyber insurance without the usual friction. | B2B | 38 |
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Value Voting builds political targeting software for advocacy groups working to reduce political extremism. The platform helps organizations identify and influence strategic primary races, replacing manual research and guesswork with data-driven targeting. The work it replaces is the labor-intensive process of determining where advocacy resources can most effectively shift electoral outcomes. | Government | 2 |
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VergeSense builds an AI platform that helps corporate real estate and workplace teams make space planning decisions. Hardware sensors installed throughout a building capture occupancy data, which feeds a cloud platform that models how space is actually used. This replaces manual observation and gut-feel planning for decisions like lease renewals, floor redesigns, and headcount shifts. | Real Estate and Construction | 70 |
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VIDA & Co. connects independent designers with ethical global manufacturers to produce apparel and accessories on demand, making each item only after it is ordered. The platform replaces speculative mass production and wholesale inventory risk, letting designers publish work that reaches consumers without overstock or waste. | Consumer | 11 |
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WATERFX builds solar-powered desalination technology that converts saltwater, brackish groundwater, agricultural runoff, and industrial wastewater into fresh water, replacing dependence on conventional freshwater infrastructure. The process uses a non-aqueous solvent to extract pure water from saline sources, with solar heat driving separation and the solvent recycled continuously. Consumers, businesses, and cities are the intended customers, served through a peer-to-peer water distribution platform called Liquid. | Industrials | 1 |
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WheelStreet runs a two-wheeler rental marketplace in India, connecting riders to scooters, commuter bikes, sports bikes, and superbikes sourced through an aggregator model. Customers choose their own rental duration, receive the bike at their door with a helmet included, and ride without kilometre limits. The platform replaces the fragmented, constraint-heavy process of renting a bike through traditional local vendors. | Consumer | 10 |
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Wildfire built a social news and alerts app for college students, letting them share breaking local news, organize around campus issues, and stay connected to their communities in real time. It replaced the fragmented mix of group chats, email lists, and word-of-mouth that students previously relied on to learn about nearby events. The company has since joined Opendoor. | Consumer | 3 |
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Zendar builds RF perception systems for real-world robotics and autonomous vehicles, combining radio frequency models with vision to handle the weather, lighting, and occlusion conditions where camera-only and lidar stacks fail. Its sensor fusion foundation targets automotive, logistics, agriculture, and industrial platforms, replacing fragile single-modality perception pipelines with a hardware-plus-model stack that operates reliably across environments. | Industrials | 45 |
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About this data
Company facts and descriptions come from Y Combinator's public directory. Each company page links to its original listing.
While a batch is still filling, we check its roster every day, and each page shows the date of the last check. Companies that drop off the directory drop off the roster here too.
Profiles marked as GPAgent's are our own fund-neutral summaries, written from public information. No fund's scores, notes, or pipeline go into them.
Source: ycombinator.com (opens in a new tab) GPAgent is not affiliated with Y Combinator.
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