YC Winter 2016 (W16) companies
As of Apr 5, 2026, 122 companies · 220 founders
Winter 2016 at a glance
- 122
- 220
- 1.8
- 15
Most common tags
- SaaS18 · 15%
- Fintech10 · 8%
- Marketplace9 · 7%
- B2B8 · 7%
- Artificial Intelligence7 · 6%
- Developer Tools7 · 6%
Where they are based
- SF Bay Area65 · 55%
- New York8 · 7%
- Los Angeles6 · 5%
- Austin3 · 3%
Companies in Winter 2016
| What they do | Market | Founders | Links | ||
|---|---|---|---|---|---|
Able Health builds a platform that helps physician organizations manage value-based reimbursement programs. It handles quality measure calculation, including HEDIS and Medicare metrics, and coordinates between clinicians and health plans, work that otherwise falls to large teams of administrators and IT staff. The product is built around each organization's specific programs, covering today's reporting requirements and positioning practices for future reimbursement models. | Healthcare | 11 |
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Algoriz builds an AI-powered platform that lets traders construct algorithmic trading strategies by typing instructions in plain English. It targets traders and quants who want to automate rules-based strategies without writing code. The platform replaces the manual process of translating trading logic into executable algorithms. | Fintech | 4 |
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AlphaFlow manages portfolios of short-term real estate loans, giving institutional and smaller investors access to the fix-and-flip lending market. It partners with non-bank lenders originating bridge loans on single-family and small multifamily properties, buying those loans and bundling them into managed portfolios. The platform replaces a manual, opaque process with automated underwriting and data-driven portfolio construction. | Fintech | 26 |
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AmberBox Gunshot Detection builds an indoor gunshot detection and response system for B2B security customers, including building operators and security teams. Sensors use tri-factor authentication combining percussion, audio, and infrared signals to identify a firearm discharge and automatically alert police via an E911-certified platform and on-site security staff within seconds. The system replaces manual, human-initiated emergency reporting, cutting the time between a shooting event and law enforcement notification. | B2B | Not listed | Not listed | ||
Anchor Health builds software, hardware, and operational tools for home health care agencies and distributed care networks. The platform targets the administrative and coordination work that fragmented, field-based care delivery creates for agency operators and providers. | Healthcare | 2 |
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Apollo.io builds a go-to-market platform for B2B sales and marketing teams, combining a database of 240 million contacts and 30 million companies with AI-driven outreach, enrichment, and engagement tools. Sales reps, revenue operations teams, and marketers use it to find, research, and contact prospects, replacing a patchwork of separate data, sequencing, and dialing tools with a single workspace. | B2B | 800 |
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Astranis designs, builds, and operates a new class of small geostationary (GEO) satellites, filling the gap between small low-earth-orbit satellites and traditional oversized GEO megasats. Its satellites deliver dedicated, secure broadband connectivity from high orbit to large enterprises, sovereign governments, and the U.S. military, replacing reliance on shared or leased capacity on legacy megasats. Astranis also develops next-generation resilient GPS satellites for Space Force, supporting position, navigation, and timing services for military and civilian users. | Industrials | 500 |
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Bonsai builds back-office software for freelancers, small agencies, and self-employed professionals. It consolidates client management, project tracking, time tracking, invoicing, payments, and bookkeeping into a single platform, replacing the patchwork of separate tools those businesses typically juggle. Target users span creative, consulting, engineering, and professional-service trades. | B2B | 25 |
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Boom builds supersonic aircraft and propulsion systems for commercial airlines and government operators. Its Overture airliner is designed to fly at twice the speed of today's subsonic jets, running entirely on sustainable aviation fuel, replacing the slow transoceanic travel those carriers currently offer. Boom also develops Symphony, its own turbofan engine optimized for supersonic flight, and has extended its engine technology into a 42 MW natural gas turbine aimed at powering AI data centers. | Industrials | 227 |
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Bus.com runs a marketplace for chartering buses across North America, serving corporate teams, event organizers, schools, and transit authorities who need to move groups. It connects customers with vetted bus operators and handles the search, booking, and coordination that organizers previously managed through fragmented phone calls and vendor negotiations. | B2B | 90 |
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Caper builds AI-powered smart shopping carts that let grocery shoppers scan and bag items as they shop, then check out without a cashier. The carts use computer vision and sensor fusion to identify products automatically, replacing traditional checkout lanes. Grocery retailers deploy the carts inside existing stores without overhauling their point-of-sale or loyalty infrastructure. | B2B | 15 |
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Carbic builds ultrasonic sensors and cloud software that monitor fluid flow in high-volume pipe networks. Lightweight hardware units attach to pipes and stream raw acoustic data over cellular or satellite to Carbic's servers, where physics modeling, signal processing, and anomaly detection convert it into real-time volume and velocity readings. Oil and gas operators, water utilities, and other large-scale fluid infrastructure owners use this to catch spills and theft that would otherwise go undetected until manual inspection. | Industrials | 8 |
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Castle manages residential rental properties for landlords, handling tenant placement, rent collection, and maintenance coordination. It replaces both the hands-on work owners do themselves and the traditional property management company, delivering the full service through software automation and on-demand labor. Landlords get a digital dashboard with real-time visibility; renters get faster communication and service updates. | Real Estate and Construction | 11 |
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Castle gives software platforms a way to detect and block account takeovers, fake account creation, and bot-driven abuse by combining device, email, IP, and behavioral signals. It targets B2B companies that run user-facing platforms and need to enforce account and policy integrity at scale. The product replaces manual fraud review and custom-built abuse detection logic that engineering teams would otherwise maintain themselves. | B2B | 20 |
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Chatfuel builds a chatbot platform that lets businesses automate sales, marketing, and customer support conversations across Facebook, Instagram, WhatsApp, and the web. Its current focus is a white-label system for agencies that qualifies leads over WhatsApp and ties those conversations to closed sales, replacing manual follow-up and disconnected ad-to-conversation workflows. Customers range from small businesses to large brands including Adidas, T-Mobile, and LEGO. | B2B | 53 |
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Chillabit builds a live social feed for students to share humor, thoughts, questions, and stories with the people around them. It replaces passive scrolling on general social platforms with a campus-focused stream of content from nearby peers. The product targets students looking for lightweight, locally relevant social entertainment. | Consumer | 3 |
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Compgun builds sales commission management software for B2B sales organizations. It replaces spreadsheets and email chains that leave reps and managers unable to track pacing or reconcile past payouts, delivering real-time visibility into commission performance across the sales team. | B2B | 11 |
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ConstructVR builds a platform that lets businesses test, manage, and deploy VR and AR applications at scale. It targets companies running multiple immersive-reality apps across devices, replacing ad-hoc manual distribution and device management with a centralized system. | Consumer | 2 |
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Copia builds surplus redistribution software for enterprises, connecting businesses that generate excess food and inventory, such as corporate cafeterias, grocers, universities, and hospitals, with nonprofits that can use it. The platform automates matching, logistics coordination, and chain-of-custody documentation, replacing manual donation workflows that were too slow and fragmented to scale. Teams get audit-ready impact reporting, and surplus that would otherwise go to landfill reaches communities in need. | B2B | 20 |
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Cover builds a comparison platform that lets consumers shop auto, home, and commercial insurance by answering a short questionnaire and receiving real quotes from over 200 carriers side by side. It targets individuals who are overpaying on existing policies and replaces the process of calling multiple insurers or brokers individually. The product is free to the consumer, positioning itself as a neutral aggregator of rates. | Fintech | 50 |
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Daily builds real-time voice, video, and AI infrastructure for developers creating conversational AI agents and live communication apps. Its flagship open-source project, Pipecat, is a vendor-neutral orchestration framework for voice and multimodal AI agents, backed by Daily's global WebRTC infrastructure for ultra-low-latency delivery. The platform replaces the need to stitch together separate real-time transport, codec, and AI orchestration layers from scratch. | B2B | 126 |
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Deako builds modular smart light switches for homeowners who want flexible, upgradeable lighting control without hiring an electrician. The switches snap in and out without cutting power, letting owners swap between basic and smart modules at any time. This replaces the traditional choice between fixed dumb switches and expensive, professionally installed smart lighting systems. | Consumer | 11 |
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Deepgram builds a voice AI platform that gives developers speech-to-text, text-to-speech, and voice agent capabilities through a unified API. It targets software teams and enterprises building products that require real-time or batch audio processing, replacing the need to stitch together separate transcription, synthesis, and orchestration services. Its models add contextual layers, including summarization, sentiment analysis, and topic detection, on top of core transcription. | B2B | 115 | Not listed | ||
DevColor runs a membership community for Black software engineers, from college through executive roles. It provides mentorship, peer connections, goal-setting, and career events that replace the informal networks and sponsorship pipelines that members are otherwise excluded from. The focus is on closing gaps in pay equity, gender equity, and advancement into technical leadership. | Unspecified | 7 |
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DoseDr builds a mobile app that helps diabetes patients adjust their insulin doses between doctor visits. Patients connect with a physician directly through the app when an issue arises, skipping the need for a scheduled appointment. The product replaces the gap in care that occurs when patients manage insulin dosing on their own without timely clinical guidance. | Healthcare | 2 |
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Elucify built an API that connected to sales teams' CRMs and automatically kept contact and company data clean and current, replacing the manual work of researching and correcting records. It targeted B2B sales organizations that depended on accurate prospect data to run outreach. Elucify was acquired by Circleback in 2018. | B2B | 11 |
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Embark Trucks develops autonomous driving software for long-haul semi trucks, targeting freight carriers that rely on human drivers for interstate routes. The software handles highway driving, replacing the attention and decision-making a driver would apply across thousands of miles. Embark went public on NASDAQ in 2021 and was subsequently acquired by Applied Intuition in 2023. | Industrials | 300 |
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Emburse builds travel and expense management software for businesses, covering corporate cards, expense reporting, accounts payable automation, invoice processing, and analytics. It replaces manual expense workflows by giving finance teams real-time visibility into spend, automated policy enforcement, and pre-approved virtual or physical Mastercard-network cards issued directly to employees and contractors. | Fintech | Not listed |
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Enflux builds motion capture clothing that tracks full-body movement in real time, serving fitness, health, and virtual reality applications. The garments replace bulky, studio-grade motion capture rigs by embedding sensors directly into wearable apparel. Developers and companies in entertainment, fitness, and healthcare access the underlying data through an open API to build their own products on top of the platform. | Healthcare | 2 |
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Envyl connects people who need to ship goods internationally with travelers already heading to the destination, replacing traditional courier and freight services with a peer-to-peer delivery network. Senders get faster, cheaper cross-border delivery; travelers earn money on routes they are already taking. | Consumer | 2 |
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FightCamp sells a home boxing and kickboxing training system that pairs studio-grade equipment with wearable punch-tracking sensors. The sensors capture every strike in real time, feeding performance data to an app that coaches and keeps score, replacing the need for a gym membership or in-person trainer. The target customer is the fitness-motivated consumer who wants structured combat-sports training at home with measurable progress. | Consumer | 64 |
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flexEngage builds personalized post-purchase communication software for brick-and-mortar retailers, turning static transactional messages like receipts into targeted marketing touchpoints. The product gives retail chains the kind of customer data infrastructure that large e-commerce players operate in-house, replacing generic, untargeted outreach after a completed sale. Retailers use it to reach customers who have already bought, a channel that traditional marketing spend ignores. | B2B | 25 |
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Focal Systems builds a computer-vision-based operating system for brick-and-mortar retailers. Cameras scan store shelves hourly, and the FocalOS platform turns that data into automated decisions on merchandising, inventory, and supply chain. The product replaces the manual shelf-auditing and operational guesswork that store managers and merchandising teams handle today. | B2B | 170 |
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Function of Beauty makes personalized hair, skin, and body care products built around each customer's specific hair type, skin type, and self-reported goals. Shoppers complete a quiz that drives formulation choices, replacing off-the-shelf products that ignore individual variation. The brand spans shampoo, conditioner, and skincare, sold direct to consumer under a customized-label model. | Consumer | 300 |
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Gecko Robotics deploys robots and fixed sensors to inspect and monitor critical physical infrastructure, including Navy ships, power plants, steel mills, oil and gas facilities, and mines. Its Cantilever platform aggregates the high-fidelity data those robots collect and applies AI to flag deterioration, predict failures, and guide maintenance decisions. The work it replaces is manual inspection: slower, less complete, and unable to generate the continuous data layer that supports long-range capital planning. | Industrials | 230 |
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Georgette Packaging designs and manufactures branded, carbon-neutral packaging for businesses that want their physical packaging to reflect environmental responsibility. It handles both the design and production process, replacing the need for companies to source conventional packaging through separate design agencies and manufacturers. | B2B | 15 |
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GetAccept builds a digital sales room platform for B2B sales teams, covering the full arc from initial outreach to signed contract. Account executives use it to share proposals, collect e-signatures, and coordinate with buyers through mutual action plans, replacing disconnected email threads, static documents, and separate e-sign tools. Native AI handles content personalization, buyer tracking, and deal analytics across the process. | B2B | 200 |
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Gigwell builds end-to-end booking management software for touring artists, booking agents, and venues. The platform handles the full workflow of a live event booking: offers, contracts, talent availability, artist advancing, and payment collection, replacing the spreadsheets and Word documents the entertainment industry has long relied on. Customers range from DJs and musicians to public speakers and comedians, along with the agencies and talent buyers who represent and hire them. | B2B | 12 |
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GitPrime builds analytics software for engineering leaders, giving them quantitative visibility into how their software teams work. It pulls data from version control systems like Git to surface productivity patterns and bottlenecks, replacing the guesswork and manual status updates that engineering managers typically rely on to understand team output. | B2B | 110 |
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GoLorry connects businesses that need to move freight between Indian cities with truck operators through a mobile marketplace. Shippers post loads and find available trucks without relying on traditional brokers or phone-based middlemen. The platform targets the fragmented Indian inter-city trucking market, replacing manual, relationship-driven freight matching. | B2B | 30 |
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Goodybag connects businesses to local restaurants and caterers for office meal ordering, replacing manual research and phone coordination. Office managers search, compare, and place catering orders in one place. Restaurants list their catering menus and set their own delivery terms at no subscription cost. | B2B | 11 |
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Hingeto connects fashion brands and influencers to online retail stores through a B2B marketplace, letting them sell products without holding inventory. Brands list past and upcoming designs; Hingeto routes fulfillment through the supply chain, removing the stock risk that typically blocks small or emerging labels from wholesale distribution. | Consumer | 15 |
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HistoWiz processes formalin-fixed tissue specimens mailed by cancer researchers and returns high-resolution digital whole-slide images within days, replacing in-house histology lab work and physical microscopy. Researchers access slides through PathologyMap, a cloud platform for viewing, annotating, and sharing images, and can connect with board-certified pathologists for on-demand consultation. The service covers tissue processing, immunostaining, slide digitization, and AI-assisted image analysis. | Healthcare | 2 |
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Index builds a managed data foundation for law firms, continuously verifying, enriching, and classifying contacts, companies, matters, and timecards inside a firm's existing systems. It serves attorneys, business development teams, and operations staff at large firms, replacing the manual, people-intensive work of keeping CRM and matter data accurate and structured. The result is a unified, searchable data layer that runs in the background without requiring any change to how staff work. | B2B | 5 |
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Inevitable Tech builds autonomous indoor farming systems that use robotics and precision agriculture to grow food with a fraction of the environmental footprint of conventional farming. The company targets the structural inefficiencies of traditional agriculture, replacing manual field labor and imprecise growing conditions with controlled, data-driven plant cultivation. Its work addresses resource use, land degradation, and yield unpredictability across the food supply chain. | Industrials | 80 |
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InnoVein builds an implantable replacement valve for veins, targeting patients with chronic leg wounds that have not responded to other treatments. The device restores venous valve function, addressing the underlying circulatory failure that conventional wound care manages but does not fix. | Healthcare | 5 |
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Interstate Analytics built multi-touch attribution software for direct-to-consumer retail marketers. It pulled visit, conversion, and spend data from all channels into a single dashboard, applied attribution models across every consumer touchpoint, and synced marketing spend and conversion data across devices. The product replaced manual data wrangling, letting marketers act on accurate cross-channel performance data instead of assembling it. | B2B | 2 |
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iSono Health builds ATUSA, a portable, automated 3D breast ultrasound scanner paired with an AI software suite. The device captures a full breast volume scan in two minutes without a trained ultrasound operator, connecting to a smartphone or tablet and sending images to a secure cloud where machine learning flags abnormal masses. It brings whole-breast imaging to point-of-care clinics and home monitoring, replacing the need for specialist-operated ultrasound equipment. | Healthcare | 9 |
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Kip Health pairs licensed therapists with a private mobile app so patients stay connected to their care between in-person sessions. Clients meet their therapist face-to-face, build a personalized care plan, and log daily thoughts and feelings through the app, which the therapist reviews to track progress. The product replaces the standard once-a-week session model, where all support stops the moment the patient walks out the door. | Healthcare | 2 |
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Kisan Network builds a fully integrated, tech-enabled agricultural supply chain connecting small and marginal farmers directly to business buyers across India. Every step from farm to buyer is tracked digitally through a proprietary management portal, replacing the fragmented, paper-based, and opaque traditional intermediary chain. The platform standardizes on-field practices, automates crop quality assessment through image and data analysis, and maintains a national repository of micro-level stakeholder data. | Industrials | 75 |
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Landed builds white-labeled housing loan programs that hospitals and colleges offer directly to their employees. Employers use shared appreciation structures to help workers cover down payments, replacing ad hoc housing stipends and forgievable loan arrangements that deliver low value per dollar. Landed handles program administration, compliance, and employee communication on the institution's behalf. | Fintech | 2 |
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Lattice builds an HR platform that helps companies manage employee performance, engagement, and career development. People teams use it to run performance reviews, set and track goals, measure engagement, and align compensation to performance, replacing fragmented spreadsheets and point tools. It serves HR leaders and managers at mid-market and enterprise companies who need a single system to connect individual output to business objectives. | B2B | 540 |
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LendEDU builds a comparison marketplace where consumers evaluate and choose financial products across student loans, personal loans, home equity, mortgages, auto loans, banking accounts, and related products. It replaces the work of researching lenders individually by aggregating options and editorial guidance in one place. The target reader is any borrower or saver making a high-stakes financial decision who needs side-by-side clarity before applying. | Education | 10 |
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Loop Genomics builds long-read DNA sequencing technology that runs on standard short-read sequencing hardware, eliminating the need for dedicated long-read instruments. Researchers and clinicians use the platform across a range of genomic applications where resolving longer DNA fragments matters. The approach lets labs get long-read data from machines they already own, replacing the need to invest in separate long-read sequencers. | Healthcare | 7 |
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Luciq (formerly Instabug) builds an agentic observability platform for mobile engineering teams, covering crash detection, performance monitoring, user sentiment, and automated issue resolution across the app lifecycle. Its AI agents surface, prioritize, and fix problems that developers and product managers previously had to triage and investigate manually, replacing reactive debugging workflows with continuous, autonomous monitoring. | B2B | 250 |
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Luminist Labs built a blood-based, non-invasive test to detect and stage liver fibrosis and non-alcoholic steatohepatitis at an early point in disease progression, replacing the need for a liver biopsy. The product targets clinicians who need to assess liver disease severity without a surgical procedure. Luminist Labs was acquired by DiscernDx in 2020. | Healthcare | 2 |
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Lygos engineers microbes, primarily yeast, to produce high-value industrial chemicals from sugar. The process targets compounds where biological fermentation undercuts the cost of conventional petrochemical manufacturing. Customers in industries such as healthcare, materials, and specialty chemicals get a renewable supply chain alternative to fossil-fuel-derived inputs. | Healthcare | 55 |
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Lynks gives shoppers in developing countries access to products from US, UK, and UAE retailers that do not ship to their region. Customers browse and order from major international stores through Lynks, which handles the cross-border logistics that would otherwise block the purchase. It replaces informal forwarding workarounds and the need for overseas contacts to receive and reship goods. | Consumer | 40 |
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Magic Instruments builds the MI Guitar, a redesigned guitar with a reimagined fretboard that lets anyone play songs immediately, without prior experience. It targets people who want to make music but are stopped by the difficulty of traditional guitar technique. The product replaces years of skill-building required to play conventional instruments, while also serving as a learning bridge for those who want to progress toward standard guitar playing. | Consumer | 2 |
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MagicBus builds vanpool management software for transit agencies and employers that operate shared commuter van fleets. The platform handles seat availability in real time, lets riders book seats and set schedules through a mobile app, and lets commuters crowdsource new routes, replacing manual, offline coordination that has historically kept vanpooling hard to find and join. | Consumer | 18 |
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MailTime builds a mobile email client that displays email conversations as chat-style message bubbles, stripping out headers and metadata so users can read and reply at the pace of a text exchange. It targets anyone who manages email on mobile and wants to replace the traditional threaded inbox with a messaging-style interface. A companion AI tool handles drafting and proofreading, reducing the time spent composing messages from scratch. | B2B | 18 |
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Mason builds a managed platform that takes dedicated smart devices from concept to deployed fleet, replacing the fragmented process of sourcing hardware, building backend infrastructure, and managing software updates in-house. Businesses developing single-use or purpose-built devices, such as tablets, wearables, or custom form factors, use Mason instead of assembling their own supply chain, device management, and provisioning stack. Mason handles inventory procurement, warehousing, zero-touch provisioning, remote fleet management, and automated software updates so product teams can focus on the application layer. | B2B | 65 |
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Meter Feeder builds parking compliance and payment software for municipal governments, commercial fleets, and autonomous vehicles. For fleets, it tracks and resolves parking tickets across thousands of vehicles in multiple cities, preventing the cascading boot-and-tow liability that unpaid violations create. For municipalities and AV operators, it enables curbside parking payment without new hardware, replacing manual enforcement workflows and app-based payment friction. | Fintech | 4 |
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MineralSoft builds a data management platform for mineral rights and royalty owners in oil and gas. It serves investment funds, family offices, individual mineral owners, and advisors who need to track, organize, and maximize the value of their subsurface assets. The platform replaces manual record-keeping and fragmented tracking across leases, royalty payments, and ownership interests. | Industrials | 35 |
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Mio bridges workplace messaging platforms, letting teams on Google Chat, Microsoft Teams, Slack, and Webex exchange messages, files, and directory contacts in real time without switching tools. It targets enterprises where different departments or merged organizations run different collaboration stacks, replacing manual workarounds and duplicate accounts. End users stay on whichever platform they already use, and Mio relays everything across the divide. | B2B | 12 |
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Modal builds digital commerce software for large automotive retailers and brands, handling the end-to-end online transaction experience that dealerships and automakers would otherwise piece together manually or through legacy systems. The platform connects the many technologies required to move a car sale from browsing to purchase entirely online, replacing fragmented, offline-heavy sales processes. | B2B | 18 |
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Monthli builds a cloud platform for homeowner associations, serving property managers, board members, and residents. It centralizes the operational work HOAs typically handle across disconnected tools: member communication, dues collection, maintenance requests, work order tracking, accounting, and document management. The platform replaces manual, fragmented processes that property managers and volunteer boards otherwise coordinate by hand. | Real Estate and Construction | 4 |
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mRelief builds a nonprofit platform that helps low-income Americans determine their eligibility for SNAP food assistance and complete the sign-up process. Available on the web and via SMS, it replaces a fragmented, paper-heavy application experience with a guided digital flow covering all 50 states and DC. The tool draws on USDA public datasets, including BBCE and COVID-19 waiver rules, to screen applicants accurately. | Unspecified | 12 |
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Mux builds video infrastructure for development teams, covering encoding, storage, delivery, and quality-of-experience analytics through two APIs: Mux Video for live and on-demand streaming, and Mux Data for viewer performance metrics. It replaces the need for teams to design and maintain their own video pipelines, letting developers launch a stream or upload with a single API call. The target customer is any engineering team that needs to ship video without building the underlying infrastructure from scratch. | B2B | 95 |
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NetBeez builds a digital experience monitoring platform that gives IT teams end-user-level visibility into network and application performance. It deploys software and hardware agents at remote workers' locations, branch offices, and cloud endpoints to run continuous active tests, capturing one-second-interval metrics. This replaces manual, reactive troubleshooting by detecting degradations and pinpointing root causes before users file tickets. | B2B | 12 |
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Netomi builds an AI platform that handles customer service for large enterprises, automating the resolution of support interactions that would otherwise require human agents. The platform is designed to operate within brand guidelines, giving companies control over how the AI represents them across customer touchpoints. | B2B | 3 |
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Nova builds an AI-driven sales prioritization tool for B2B sales teams. It analyzes the full pipeline and surfaces the next best action for each deal, replacing the manual work of tracking follow-ups and spotting stalled opportunities. Sales reps and managers use it to keep deals moving without relying on memory or spreadsheets. | B2B | 11 |
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Nurx delivers prescription medications and at-home testing kits directly to patients through an online clinical platform focused on women's health. Patients consult with providers remotely across a broad range of conditions, including birth control, menopause, mental health, weight management, dermatology, and sexual health. The platform replaces in-person specialist visits for ongoing and recurring prescriptions, with free shipping on all orders. | Healthcare | 300 |
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Open Motors builds open, modular electric vehicle platforms for manufacturers and mobility startups. Its TABBY EVO platform gives automakers a validated base to develop their own EV models, cutting years of R&D and tooling work. Its EDIT vehicle is a white-label, self-driving-ready platform built for fleets running mobility-as-a-service and logistics routes, with a modular design that allows component swaps and upgrades to extend fleet life. | Industrials | 11 |
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Opentrons builds liquid-handling robots and automation software for biologists. Its hardware, including the Opentrons Flex and OT-2, takes over manual pipetting work that researchers otherwise perform by hand, reducing repetitive benchwork and freeing scientists to focus on experiment design and data analysis. Customers range from academic labs to biotech companies running assays at scale. | Healthcare | 300 |
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Outschool connects kids ages 3–18 with independent educators for live, small-group online classes spanning academic subjects and interest-based topics. Parents use it to supplement conventional schooling or replace it entirely for homeschoolers, choosing from a wide catalog that covers far more ground than a traditional curriculum allows. The platform handles what tutoring centers, enrichment programs, and school electives would otherwise provide in person. | Education | 107 |
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Patchwork Security automates security patch tracking and notifications for servers, targeting businesses that need to stay on top of vulnerabilities. It replaces the manual work security engineers do to monitor, identify, and communicate when patches are needed, making that expertise available without dedicated security staff. | B2B | 2 |
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Pathmind builds deep reinforcement learning tools for industrial engineers and simulation modelers working in supply chain, warehouse, and mining operations. It connects to existing simulations and digital twins to train decision-making policies, then deploys those policies into live operations. The product replaces manual tuning and rules-based logic that engineers would otherwise write and maintain by hand. | B2B | 15 | Not listed | ||
Pave turns Google Analytics and marketing data into plain-language reports and actionable insights using automated data science. It serves SMBs, e-commerce businesses, and agencies that need to know which marketing strategies are driving results and which are not. The product replaces the manual work of a data analyst interpreting traffic and campaign data. | B2B | 6 |
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Paystack builds payment infrastructure for African businesses, letting them accept credit cards, debit cards, bank transfers, and mobile money through their websites and mobile apps. It replaces cobbled-together or unavailable payment options that previously blocked merchants from collecting digital payments at all. | Fintech | 115 |
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Perlara runs drug discovery and development for inherited metabolic diseases, a category that large pharmaceutical companies have systematically passed over. It uses yeast models of patient biology to screen repurposable and novel compounds, then advances candidates through clinical trials anchored to specific rare disease families. The work replaces the years of exploratory research that families would otherwise have to fund and coordinate themselves across disconnected academic and industry partners. | Healthcare | 1 | Not listed | ||
Petcube builds connected hardware and software for pet owners who need to monitor, interact with, and care for their pets remotely. Its lineup includes indoor cameras with two-way audio, treat dispensers, a 360-degree camera, a GPS tracker, and a water fountain, all managed through a companion app. The products replace the guesswork of leaving a pet alone: owners can watch live video, receive AI-powered alerts, toss treats, and track location from anywhere. | Consumer | 51 |
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PhysioHealth builds a corporate wellness platform that incentivizes employees to adopt healthier habits, reducing healthcare costs for employers. It targets enterprise companies seeking an alternative to low-participation wellness programs, delivering higher employee engagement than standard offerings. The product replaces fragmented, one-size-fits-all benefits tools with a customized, rewards-driven system. | Healthcare | 2 |
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Plato built a mentorship platform for engineering and product managers at technology companies. Managers got matched with experienced technical leaders from companies such as Google, Netflix, and Lyft for real-time video one-on-ones, AMAs, and other formats to work through live management challenges. The platform replaced ad-hoc peer networks and informal mentorship with structured, on-demand access to senior practitioners. Plato was acquired by Coda in 2024 and has since wound down its mentorship programs. | B2B | 26 |
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PocketSuite builds a mobile platform for independent service professionals, covering fitness trainers, pet groomers, hairstylists, home cleaners, therapists, and similar solo operators and small teams. It handles booking, payment collection, and client messaging in one place, replacing the patchwork of separate scheduling tools, invoicing apps, and SMS threads these professionals otherwise manage manually. | B2B | 40 |
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Podium builds an AI-powered lead management and communication platform for local businesses, covering industries from auto dealerships to home services and aesthetics. Its AI Employee captures incoming leads, qualifies them, books appointments, and re-engages past customers around the clock, replacing the work a front-desk or sales rep would otherwise handle manually. All calls, texts, reviews, and payment links are managed from a single dashboard. | B2B | 1000 |
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Poppy connects parents with a curated, pre-vetted team of babysitters and nannies on demand. Families text Poppy when they need care, replacing the time-consuming work of sourcing, screening, and scheduling sitters independently. The service targets busy parents who need reliable childcare without managing the logistics themselves. | Consumer | 2 |
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Protonet builds private cloud hardware for small businesses, giving them an on-premise server they own and control instead of relying on third-party cloud services. The product lets small teams run their own data, files, and communications internally, replacing subscriptions to hosted platforms with a self-managed physical device. | B2B | Not listed |
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Pulpix builds AI-driven personalization and content recommendation technology for online video platforms. It targets publishers and streaming services, automatically surfacing the next piece of content to keep viewers watching rather than leaving the site. The product replaces manual curation and generic recommendation logic with machine learning that adapts to individual viewer behavior. | B2B | 15 |
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Quilt Data builds an AWS-native data management platform for life sciences teams. It consolidates raw files, results, and metadata from S3 buckets and lab instruments into versioned, searchable, governed packages, replacing ad hoc file sharing and manual data organization. Scientists working on computational biology, genomics, and connected lab workflows use it to find, share, and reuse scientific data without building custom infrastructure. | B2B | 6 |
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Qvin builds a diagnostic platform that collects and analyzes menstrual blood as a non-invasive alternative to conventional blood draws, biopsies, and pelvic exams. Its Q-Pad, an FDA-cleared menstrual pad, captures period blood for biomarker testing that screens for and monitors conditions including diabetes, endometriosis, cervical cancer, uterine fibroids, and STIs. The platform replaces needle-based lab collection and invasive gynecological procedures for people who menstruate. | Healthcare | 30 |
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Rappi operates an on-demand delivery marketplace across Latin America, connecting consumers with restaurants, grocery stores, and retailers for same-day fulfillment by independent couriers. The platform handles the ordering, logistics, and payment layer that would otherwise require customers to visit stores or coordinate multiple delivery services. Beyond delivery, Rappi extends into financial services for the same consumer base. | Consumer | 4800 |
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Real Artists builds a fast, native issue tracker for software development teams. It gives engineers a desktop-grade tool for managing bugs and tasks, replacing slower web-based trackers. The focus is on a tight, responsive experience over browser-delivered alternatives. | B2B | 2 |
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Redspread builds a collaborative deployment tool for software teams managing environments across the development-to-production pipeline. It gives developers version control over their environments and lets them deploy Docker projects to a Kubernetes cluster with a single command, replacing the manual coordination and scripting that teams use to keep environments consistent. | B2B | Not listed |
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Relativity Space designs, manufactures, and launches its own rockets, targeting the commercial and scientific payload delivery market. Its manufacturing process combines 3D printing, AI, and autonomous robotics to produce rockets with far fewer parts and a compressed build timeline, replacing the traditional aerospace supply chain. Its current vehicle, Terran R, is a medium-heavy lift, fully reusable rocket aimed at routine orbital access. | Industrials | 1000 |
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Restocks builds a mobile shopping app for sneaker and streetwear buyers who want to catch new releases, restocks, and price drops from their favorite brands. Users get instant alerts, check live stock, and complete purchases without leaving the app, replacing the need to monitor brand sites and third-party retailers separately. | Consumer | 2 |
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Revl builds an automated video system for adventure attractions, including zip lines, alpine coasters, skydive drop zones, and ride operators. The system records, edits, and delivers personalized guest footage within moments of an experience, replacing manual camera operators and post-production staff. Attractions sell the finished videos as souvenirs, converting a cost center into a per-capita revenue stream while guests share the content organically. | B2B | 22 |
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Salt Security builds an API protection platform that detects and blocks attacks targeting the APIs underlying modern applications. Security teams use it to discover shadow APIs, monitor live traffic for behavioral abuse, enforce posture and compliance policies, and extend protection to agentic AI systems, replacing manual API auditing and point-in-time scanning. The platform correlates activity across APIs and users over time to surface threats that signature-based tools miss. | B2B | 200 |
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Sanitation and Health Rights in India (SHRI) builds and manages shared sanitation facilities for underserved communities across neighborhoods, markets, schools, and health centers in India, where open defecation remains widespread. Working with local governments, SHRI renovates existing infrastructure and keeps facilities clean, safe, and operational over time, replacing the absence of any formal sanitation service. The organization also generates evidence that well-managed shared facilities can meet a high-quality standard and serve as a path to universal access. | Unspecified | 1 |
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Sendbird builds an AI-powered customer experience platform for enterprises, combining a conversational AI concierge with a communications infrastructure layer covering chat, voice, and video. Businesses use it to handle customer interactions across the full customer journey, replacing traditional support desks and manual agent workflows. Customers include large consumer platforms in on-demand delivery, marketplaces, financial services, and digital health. | B2B | 300 |
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Silver builds a miniaturized Raman spectroscope for everyday consumers. The handheld device, paired with proprietary nanoparticle substrates, lets users scan food, water, or other materials for contaminants on the spot. It replaces the need to send samples to a lab or rely on professional testing services. | Consumer | Not listed |
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SOUNDBOKS designs and sells high-volume, battery-powered portable speakers for outdoor events, festivals, and parties. The hardware is built for consumers who need durable, loud audio in settings where fixed sound infrastructure is absent. Each speaker is sold direct, replacing rental gear and underpowered consumer alternatives. | Consumer | 50 |
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Start Closing builds project and customer tracking software for restoration roofing contractors. It gives contractors a structured way to manage the insurance claim process, coordinate internally, and keep homeowners informed at each stage. The product replaces ad hoc communication and manual tracking across what is otherwise a fragmented, multi-party workflow. | Real Estate and Construction | 2 |
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Stealth Worker connects companies to vetted, contract cybersecurity professionals across InfoSec, cloud security, penetration testing, compliance, and privacy. Businesses use it to fill skills gaps without committing to full-time hires, engaging contractors for anywhere from five to forty hours per week. The service replaces a traditional recruiting or staffing process for specialized security roles, including GDPR data protection officers, penetration testers, security architects, and sales engineers. | B2B | 5 |
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Stilt builds an API platform, branded as Onbo, that lets companies launch credit products without needing a bank sponsor. The APIs handle licensing, regulatory compliance, underwriting, loan servicing, credit reporting, and debt capital, replacing the need to build or negotiate those infrastructure layers independently. Fintechs and other businesses that want to offer lending use Stilt to get to market without assembling that stack themselves. | Fintech | 35 |
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Streamup builds a live streaming platform for music, connecting fans with musicians through real-time video broadcasts and chat. It replaces passive music consumption with an interactive experience where viewers watch live performances, talk directly with artists, and support them in the moment. | Consumer | 2 |
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StrongIntro helps corporate recruiters source candidates by activating the professional networks of their existing employees, combining software with a hands-on service layer. The product targets companies looking to fill roles through warm referrals rather than cold outreach or job boards, replacing the manual work of identifying and reaching out to employee connections. | B2B | 2 |
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Superside delivers creative work, including advertising, brand design, and video, to large consumer and enterprise brands on a subscription or ongoing-service basis, replacing traditional agency relationships. A distributed team of designers and creatives handles projects submitted through Superside's own project management technology, giving marketing teams a faster and more predictable output than a conventional agency. The model cuts out pitch work and awards overhead, keeping prices well below typical agency rates. | B2B | 750 |
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Thunkable builds a no-code platform that lets non-technical users design and publish native iOS and Android apps without writing code or configuring development environments. Founders, operations teams, designers, and educators use it to replace custom mobile development workflows. Users describe ideas through an AI builder or a visual drag-and-drop editor, then publish directly to the App Store or Google Play from the platform. | B2B | 40 |
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Tovala sells a Wi-Fi-connected smart oven paired with a weekly fresh meal delivery service, targeting busy home cooks who want a hot dinner without shopping, chopping, or cleanup. Customers scan a barcode on a delivered meal kit and the oven automatically runs a chef-programmed cook cycle, producing a finished meal in under 20 minutes. The product replaces both meal planning and the hands-on labor of cooking a weeknight dinner from scratch. | Consumer | 375 |
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Toymail builds Wi-Fi-connected plush toys that let children and adults exchange two-way voice messages: a child speaks into a Talkie, and the reply goes to a phone via the free Toymail app, or directly to another Talkie. The product replaces phone calls and text messages as the way family and friends stay in touch with young kids who cannot yet use a smartphone. | Consumer | 2 |
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TRAC builds an RFID-based timing system for track and field and other time-based athletic events. Coaches and athletes get precision timing with immediate feedback, replacing manual or fragmented timing setups. The integrated hardware and software platform handles events at any scale, from race-day data capture through results delivery. | Healthcare | 2 |
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Truebill builds a personal finance app, now branded Rocket Money, that helps consumers track spending, identify and cancel unwanted subscriptions, negotiate lower bills, and automate savings. It replaces the manual work of auditing bank statements, calling service providers, and piecing together a budget across accounts. The product targets everyday consumers who want to cut recurring costs and build savings without doing the legwork themselves. | Fintech | 225 |
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Unima builds rapid diagnostic tests that let healthcare workers identify disease at the point of care, without lab equipment, in roughly 15 minutes. The product targets settings where sending samples to a centralized lab is impractical or too slow, replacing that workflow with an on-site test at a fraction of the cost. Results feed real-time disease surveillance, giving public health teams immediate visibility into outbreaks as they develop. | Healthcare | 26 |
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Unnyhog develops and publishes video games for consumer entertainment. Its latest title, UnnyWorld, is a fantasy MMO that uses gesture controls to bring mobile and PC players into a shared game world, replacing the traditional split between platform-specific player bases. | Consumer | 1 |
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UpLabs runs a marketplace where designers and developers find, share, and download curated resources, such as UI kits, templates, and design assets, for building apps and websites. The platform replaces manual searching across scattered sources by centralizing community-uploaded content in one place. It serves both designers looking for ready-made components and developers seeking visual assets to speed up production. | B2B | 1 |
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UroDev Medical builds connected medical devices for people living with spinal cord injury and disease. Its first product is a connected catheter that addresses neurogenic bladder and urinary incontinence, conditions that currently require manual, disconnected catheter management. The product replaces that unassisted process with a device-driven approach designed to improve daily quality of life for SCI/D patients. | Healthcare | 4 |
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VINEBOX (Usual Beverage Co.) delivers curated single-serving wine tastings direct to consumers, letting subscribers sample six sommelier-selected wines per month in patented 100 ml glass tubes before committing to full bottles. Each monthly box includes tasting notes, pairing guides, and virtual tasting videos, replacing the guesswork of buying unfamiliar wines blind. The service targets both casual drinkers and enthusiasts, with options for individual subscriptions, one-time tasting boxes, and corporate gifting. | Consumer | 11 |
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Wakie builds a voice chat app that connects strangers through one-on-one calls and topic-based group clubs, replacing text-heavy social platforms with real-time audio conversation. Users browse profiles and ratings to choose who they talk to, then chat about anything from language practice to personal struggles to everyday life. The product targets people looking for genuine human connection, not curated photo feeds or anonymous comment threads. | Consumer | 10 |
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WorldCover connects smallholder farmers in developing countries with crop insurance backed by retail and institutional investors. Farmers gain coverage against natural disasters and bad harvests, replacing the informal risk-bearing that leaves them exposed to income shocks. Investors access returns uncorrelated with global financial markets while directing capital to agricultural communities at the base of the pyramid. | Fintech | 20 |
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Yardbook builds business management software for independent landscaping and lawn care companies. It covers the full administrative workload: scheduling, routing, estimates, invoicing, payments, timesheets, GPS tracking, and chemical records. Owners who previously relied on paper, spreadsheets, or multiple disconnected tools run those operations in one place. | B2B | Not listed |
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Zenysis builds data integration and analysis software for government agencies in developing countries. It consolidates fragmented government datasets into a single platform, giving officials a unified view they can query during emergencies, disease outbreaks, and humanitarian crises. The product replaces manual data reconciliation across siloed systems that would otherwise slow decision-making when speed matters most. | Government | 11 |
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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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