YC Spring 2025 Data Room

Acolite builds AI teammates that handle submissions, issuing COIs, and SOV mapping across any AMS. Like an extra teammate, you simply forward an email and Acolite handles the rest.

Adentris is an AI compliance copilot for hospitals and clinics. We are like Grammarly for doctors, finding and fixing mistakes that lead to denied insurance claims or patient lawsuits. The industry today spends $40B doin…

Aegis is the all-in-one platform that helps healthcare providers recover lost revenue by automating insurance denial appeals—from intake to resolution. Built for billing teams, healthcare providers and hospitals.

Open-source context retrieval for AI agents across apps and databases. It connects to productivity tools, databases, or document stores and transforms their contents into searchable knowledge bases for agents.

Alkali is building the co-pilot for chemical process design. Spot design errors earlier, get the right equipment sooner, and build chemical projects faster.

Industrial grade 7 DoF robot arms designed and assembled (by robots) in California.

Aravolta provides a single pane of glass software for data centers to increase uptime, reduce costs, and improve performance. A single utility node onboards every asset within an hour and detects hardware failures, ho…

Atlog creates voice agents with built-in compliance. Companies use Atlog to automate their calls and texts without worrying about getting sued.

Attune makes blazingly fast build tools that require zero migration effort. As AI enables developers to write code faster than ever, slow builds are increasingly becoming the bottleneck in development velocity. Develo…

Atum Works is building 3D ASML. Founded by Caltech and NASA engineers, we're starting the next scaling law of semiconductor manufacturing, this time in 3D.

Auctor brings alignment and intelligence to software implementation, enabling every project to deliver its intended value with clarity and precision.

Avallon automates insurance claims operations with AI agents that handle routine calls and documents processing.

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Using our 7+ years of influencer marketing experience to help companies run their influencer campaigns at scale. Fully managed solution to drive real, attributable results to their marketing efforts.

We are building the data layer for AI, starting with audio. We start with data collection, curating our own proprietary set of diverse conversational data covering a wide range of languages, dialects and accents. W…

Better Auth is a comprehensive authentication framework for TypeScript that lets you implement everything from simple auth flows to enterprise-grade systems directly on your own database, embedded in your backend. It’s l…

BitBoard is an AI-first spreadsheet that lets you build, update, and analyze spreadsheets via agent chat. Handle complex modeling and analysis 10x faster without giving up direct cell-level control when you need it. W…

Leverage cutting-edge AI to detect exposed credentials in real time and protect your organization from high-impact data breaches.

Blaxel is the perpetual sandbox platform for AI agents that need to run code fast. Unlike traditional sandboxes that expire or suffer from cold starts, our sandboxes automatically scale to zero after 1s of inactivity …

Bloom lets you vibe code cross-platform apps and test them on your phone natively in seconds. Unlike other vibe code tools, Bloom deploys a backend for you, so you can build functional MVPs and personal apps, not just to…

Bluejay’s mission is to engineer trust into every AI interaction, becoming the trust layer between businesses and their customers.

Blueshoe is an AI platform for legal research and reasoning designed to capture the structure of legal thought and allow users to work directly within the logic of caselaw. By combining advanced AI with curated legal and…

Bond is an AI Chief of Staff that gives CEOs and busy executives real-time visibility into what’s happening across the company and tells them what to focus on. Saving execs 10+ hours a week.

Boost Robotics is building autonomous mobile manipulation robots to remotely perform manual tasks in data centers. The surge in AI applications is pushing data centers to scale faster than they can manage, leading to…

Manufacturing pharmaceutical drugs faster and in the USA

Cactus is the 24/7 AI call center built for home service businesses. Our AI answers calls, qualifies customers, books jobs, and follows up automatically, helping business owners capture more leads and retain more custome…

We supercharge agents from Cursor to AgentKit with product and team-level context. Connect us once to where your internal data lives, then create secure data gateways with granular cross-platform permissions, comprehensi…

Cascade Space is building a turn-key communications system for lunar and deep space missions. Our ground station network and integrated software tools work together to maximize uptime and availability, while reducing spa…

Casco helps companies confidently ship AI agents and apps by simulating attacks on their AI systems, identifying vulnerabilities, and providing guided remediation. Companies building on AI face a disproportionate amou…

Caucus is the last piece of software the American government will ever need. We're building an AI CRM for government. Caucus empowers government workers to streamline their daily tasks, eliminate fragmentation, and work …

Chestnut is the first AI mortgage lender. We automate 99% of human work with AI agents, saving customers 0.5%+ in interest. This is Spencer's second mortgage startup; the first processes 2% of US mortgages annually. So f…

Chiron is an iPad app that understands math as it’s written - like Grammarly for algebra. We’re both Oxford math grads, have tutored for a decade, and we’re creating the future of learning which will be entirely 1-on-1.

Chonkie breaks down large documents into smaller, meaningful chunks, making it easier for AI to process information. By ensuring that models receive only relevant and well-structured context within their token limits, Ch…

chrt is a logistics platform for time-critical shipping. We enable businesses to deliver their most critical items same-day. Time-Critical Logistics is a $30B market growing at a 20% CAGR driven by growth in American …

Clado puts 800 million+ people profiles (and growing) at your fingertips with simple, agentic search. If you’re interested in a global people search for sales, spreadsheets, hiring, and more, try our product at clado.ai

Post-acute agencies lose up to 15% of revenue each year to denials, non-compliant documentation, and delayed payments. Most treat it as a cost of doing business. Instead of waiting weeks for rejections and appealing clai…

You build awesome software - now turn it into a business. We turn each git commit into customer sales by producing leads and marketing material from your codebase and providing 24/7 technical support to your users.

Cleon's AI voice agents work 24/7—answering every incoming call right away and making outbound calls when you need them. They chat like real people, handle FAQs, book appointments, take orders, and pass the complex stuff…

Clidey is building WhoDB (https://whodb.com) Coming soon.

Code Four slashes the administrative burden on law enforcement through AI-driven automation. Officers spend up to a third of their shifts manually transcribing body camera footage, creating inaccuracies, reducing transpa…

Cohesive is the agentic CRM for blue collar businesses like janitorial, pressure washing, landscaping, HVAC, and pest control businesses. Cohesive fully automates sales and marketing outreach to local businesses and prop…

Built by an ex-Deloitte/Google team, Combinely’s AI-coworker proactively takes on work, helping tax teams handle everything from document collection, answering client queries to producing & reviewing tax returns.

Cotool is an agentic security platform that eliminates manual and repetitive work for security teams. Today’s cybersecurity teams remain bogged down by alert fatigue, context switching, and documentation overhead. Sec…

Crimson is the first AI platform purpose-built for complex disputes. Litigation teams use Crimson to analyze case files, draft legal documents and answer case-specific questions. By automating manual workflows throughout…

Open-source infrastructure for Computer-Use Agents. Sandboxes, SDKs, and benchmarks to train and evaluate AI agents that can control full desktops (macOS, Linux, Windows).

Code review is a major bottleneck for software teams, and the rise of AI-generated code is making the problem worse. Reviewing large volumes of code slows devs down, and increases the chances of bugs slipping through. …

Den is a Slack/Notion-like platform that help teams get more done with general-purpose AI agents. We want to deploy trillions of AI agents into the mainstream workforce and unlock the most productive era in human his…

Docket lets you write end-to-end tests in plain English and keeps them up to date automatically—powered by real user sessions.

Dolphin is a startup in a box. Dolphin is a web-app builder for aspiring startup founders to ship to their first customers in an hour. Dolphin builds startups in one pass. Dolphin can setup subscriptions, AI assistan…

We automate complex, regulated operations in financial services—no APIs, no engineering required. We hit $500K ARR in just four weeks because customers deploy instantly. Our AI Operator learns by observing existing wor…

Flott helps transport and logistics companies run leaner, smarter, and more profitable operations. Flott unifies everything transport and logistics teams need in a single, AI-powered control center—bringing planning, liv…

Foundation Industries supplies components to hard tech companies with a sharp focus on quick turn ability. Our manufacturing processes are purpose built for the high mix nature of prototype work which allows us to comman…

AI is transforming healthcare, but the biggest bottleneck remains—procuring and annotating medical images with speed, accuracy, and scale. Frekil eliminates this roadblock. Frekil helps healthcare AI teams, medical de…

Galen is an AI-powered personal healthcare companion. We enable patients to securely connect their medical records from over 800 healthcare institutions across more than 12,000 locations in the United States, United King…

What if every experiment you wanted to run could be modeled using AI? Godela is an AI-powered physics engine that gives engineers faster, cheaper replacement to simulations and physical prototypes. No set up, no wait.…

Golf is the security gateway for enterprise MCP servers. We give organizations a single entry point to control, monitor, and secure their MCP infrastructure.

GroundControl builds mission-critical software for manufacturers in highly-regulated industries (aerospace, defense, medical) Our core product automates lengthy, complex, and regulated quality documentation in aerospa…

Every month, our robots greet thousands of Americans with a smile. They answer questions, upsell customers, and can be trained just like a human employee.

As AI agents replace traditional software, they need a way to store, recall, and reason over contextual data. HelixDB gives them all of that in one system. We’re building the knowledge infrastructure every AI agent will …

Next-generation truck management software to automate back-office operations for trucking companies. Features include AI agents to automate inbound/outbound calls, AI document upload to reduce manual data entry, load sou…

Human Behavior uses vision models to watch all user web sessions so you know exactly how users use every part of your product.

Janus automates AI evaluations by using high-fidelity simulation environments, catching failures in reasoning, compliance, tool usage, and performance. The resulting datasets benchmark products and feed post-training…

We're creating reinforcement learning environments for training frontier models.

Jeevy Fabrication is an AI-powered contractor that connects complex weld jobs to the best-fit shops—fast. We deliver top-tier QA and total transparency, all at better traditional outsourced pricing. Our software reduc…

Kaelio is the modern alternative to Metabase and Looker. We replace rigid dashboards with an AI-native interface that connects directly to your warehouse, letting teams explore data and build dashboards through conver…

Kaizen leverages browser agents to enable instant integration into websites without APIs. Leading AI companies use Kaizen to read and write data from legacy portals in logistics, healthcare, and financial services.

Distributors face a shrinking workforce and rising call volume. Kanava AI builds voice-based agents that act like junior sales reps — starting with routine inbound calls, stock and price checks, field note logging, an…

Kashikoi is a simulation engine to benchmark AI agents. We generate CPU friendly world models that autonomously interview agents and generate deep behavioral assessments. We built a similar technology at Moveworks which …

Kestral makes it clear what your customers want most, prioritizes those tasks for highest leverage, and closes the loop with those customers. We (Brian and Bernard) have been close friends since university, and most r…

Kirana AI is building the first full-stack AI store manager. With 100 years of family experience owning and operating grocery stores, we are starting there to prove our impact. Our first product utilizes an on-prem…

Klavis AI is Open source MCP integration platform that let AI agents use tools reliably at any scale. Our API provides hosted, secure MCP servers, eliminating auth management and client-side code. Co-founder Xiangkai Zen…

Labric is building the data layer that makes AI work for science. We capture messy lab data from instruments and tools, clean it, and connect it— so researchers can actually use AI to accelerate discovery.

Lapel is building a customer operations platform that brings hospitality to the internet: tools to power every touchpoint across sales, success, and support. Today, most teams manage relationships through dashboards, …

An AI that continuously learns your organization’s knowledge and expert playbooks, uses experimentation, and with human approval ships data & AI programs and their operational UIs on your existing stack.

LineWise is building an AI assistant for manufacturing teams to operate and resolve production issues, from defects to breakdowns. LineWise automatically extracts frontline know-how from live video recordings, turnin…

Think Function Health for Europe. We combine medical expertise and AI to transform regular blood testing into actionable insights to help people live healthier, longer.

Lumari enables supply chain teams to streamline operations with always-on agents that monitor, coordinate, and take action from sourcing to delivery.

AI notetakers clutter meetings. Multiple tabs separate knowledge. Lyra brings meetings and work together in one clean workspace. You can work on docs with AI and your team live, no screenshare required. Create follow-u…

Teach robots new skills through natural language and run reliably in production in minutes. Mbodi combines generative AI and agent orchestration, turning everyday language and quick demos into precise, reliable robot …

Mesmer is Cursor for CTOs. We give founders and CTOs full visibility into their org without drowning in meetings or chasing updates. We are a team of repeat founders and CTOs with 15+ years of experience each, including …

MindFort is building fully autonomous AI agents powered by their in-house models that can find, exploit, and patch complex vulnerabilities in web applications at massive scale. MindFort agents use the same principles as …

We’re building an AI-native accounting firm where accountants collaborate with intelligent agents to deliver superior financial advisory services. Together, they close the books in a fraction of the time traditional firm…

A fully open-source, performant and actionable Weights & Biases alternative that saves you money. Check out our story here! https://www.reddit.com/r/mlopai/comments/1kkc9jp/mlopai_an_efficient_free_and_opensource/

At Moby Analytics, we provide the first AI agentic platform built for financial auditors. Auditors easily create and deploy AI agents to automate audit workflows. No code, just prompts and domain expertise.

Morphik is open-source multimodal search for AI apps. We're used by customers ranging from space-tech teams searching across research papers to developers building brokerage agents.

We're building an AI powered platform for engineers that are building new robots and machines. We allow users to invent and modify machine designs in a matter of minutes, not years. Ayna and Andy, the co-founders, me…

nao is an AI code editor for data teams. Its AI agent is natively integrated with your data warehouse, and trained on data workflows - so it can write code that actually works on your data and guarantees its quality.

Nomi.so provides on-the-spot phrase suggestions, intelligently crafted from your transcribed sales calls and a custom playbook that adapts and grows with you, from founder-led sales to revops mastery. PS: We also inc…

We develop drones and land based autonomous robots that are designed to be controlled as groups and execute autonomous missions instead of requiring skilled operators to pilot or control. Once a critical mass of intellig…

Novoflow is building AI employees that automate medical operations for clinics. Novoflow built the universal bridge into EHR systems—so every workflow, from scheduling to billing, can finally run on AI. The first product…

Get opinions from anyone by talking to an AI chatbot trained on their content

Opusense AI automates field report writing for construction field inspectors. Instead of typing up notes at the end of the day, inspectors can now walk a site, speak observations aloud, snap photos, and let our AI assist…

ParaQuery is a fully-managed GPU-accelerated Spark solution providing double the performance at half the cost compared to solutions like Databricks and BigQuery. It is fully Spark-compatible, cloud agnostic, and has seam…

Automate data extraction, resolution, and validation from document packages to accelerate investment and underwriting workflows. Parsewise applies your decision criteria, completes custom templates, and delivers reliable…

Partcl modernizes chip design automation with physics-informed models powered by GPU acceleration. Our tools run up to 700× faster than legacy solutions, cutting weeks off development and unlocking AI-driven optimizati…

Building an AI copilot for researchers to analyze and transform real-world data.

PgDog is an application for sharding PostgreSQL. It understands SQL and can distribute queries automatically between databases. It's built for managed databases, like AWS RDS, and doesn't require any changes to applicati…

Photonium is building software to automate optical system design. We supercharge optics experts with intelligent tooling to reduce costs and deliver faster. We handle the full design stack — from optimization, verificati…

Plexe builds predictive ML models from a problem description. It connects to data sources, conducts experiments, evaluates and deploys the models to an API endpoint.

PowerMatrix provides the MOST efficient and compact next-generation high-performance power supplies for emerging technologies, such as GPUs, xPUs, AI server, datacenters, drones, EV, aerospace, etc. Based on patented…

Probo acts like your compliance team. You tell us how you work, and Probo does the rest: 1. Set the right requirements - not overkill 2. Handle docs, risks, controls, evidence 3. Run the audit 4. Keep everything up t…

Propolis simulates real users via swarms of autonomous browser agents that test for you.

QFEX is the 24/7 exchange for traditional financial markets. We let you trade US equities, commodities and FX pairs with (or without) leverages of up to 100x. On QFEX, UX comes first: brokerless market access, seamles…

QualGent is an AI Mobile App Quality Assurance Tester that mimics a real human, helping teams catch bugs and ship faster - without hiring more QA testers. One customer reached #3 in the Education category on the App Stor…

Ralo is a mortgage platform built to deliver lower rates and lower fees by cutting out unnecessary intermediaries. We automate the complex work behind the scenes, from paperwork to pricing and negotiation.

Building RL environments for the next generation of capabilities in frontier models

Relixir is the Growth Engine for AI Search. We turn ChatGPT mentions into direct revenue. Over 1B people now use AI search every week to buy products. Relixir creates GEO content that gets cited in AI responses, …

Rimba is building an AI-powered platform to help industrial and energy companies stay compliant with environmental regulations. Legacy systems can’t keep up with today’s complex compliance needs. Rimba offers a platfo…

RunRL improves LLMs and AI agents with reinforcement learning. Do you have a model that needs to get better at a certain task? Are you tired of messing around with prompts? Do you spend a lot of money on observability, a…

Saffron Health is building AI agents that automate specialist referrals for primary care. Primary care staff spend hours each day on tedious coordination work: searching for in-network specialists, filling out author…

We’re building an AI-powered Bloomberg Terminal using Financial Agents. I used to be a trader at Tower Research and Goldman Sachs, and I’m building Scalar Field with my co-founder Ramakant, who led engineering teams a…

sieve solves data cleaning for hedge funds and investment firms by letting them get clean data in four lines of code. Currently, their data pipelines have conditions that raise for human review, which literally send an e…

Sim enables fast-growing dev teams to build and deploy AI agent workflows. 65,000+ developers are already using Sim, integrating with 500+ apps to streamline workflows with AI agents.

Instantly deploy custom research agents to source and enrich specialized professionals, company data, and insights directly into your existing systems.

StarSling is building an agentic developer homepage that automates all the tasks that eat up a developer’s time after they’ve left their code editor: deployments, performance, incidents, and bugs. Open your homepage, cli…

Stratify is the AI-powered user researcher that discovers the why behind every decision, click, and preference. Our platform uses agentic workflows that instantly recruit participants, conduct user interviews, analyze r…

We collect high-quality multimodal human data, across diverse interactions and environments, to help advance the next generation of world models and embodied AI.

We’re building quantum-accelerated AI servers so organizations building AI can exponentially speed up training and inference. And we’re making tools for AI researchers to integrate quantum capabilities into AI models and…

A conversational AI platform built for life sciences extending field reach, enabling 24/7 compliant engagement, and scaling trusted conversations with HCPs and patients.

Tegore follows K-12 school curriculum to design courses like Algebra I & Algebra II. In addition to working with high schools in the Bay Area to design the best in-classroom experiences, Tegore is developing the correspo…

We're building the first AI agent that thinks like a group. While everyone else is stuck with boring individual chatbots, we've cracked the impossible: AI that reads the room, understands each person, and creates cust…

The LLM Data Company is a research lab studying post-training data. We work with frontier AI teams to create bespoke tasks, rewards, and environments for models to play and learn at scale.

We make automation accessible to businesses with an affordable, general-purpose robot platform designed to automate repetitive, stationary tasks.

Theorem is training models that make program verification 10,000 times faster. Using verification as a feedback loop, developers have found zero-days in GPU accelerated code and cryptography implementations, and sped up …

Third Chair automates complex legal workflows at scale, supported by an on-demand network of top lawyers to step in when you need them. We’ve started with revenue-generating workflows like IP enforcement, giving media…

throxy is building vertical AI agents that book meetings for companies selling into traditional industries like manufacturing, logistics, education, and finance. Outbound is broken—generic automation gets ignored, and…

Ticket Wallet is an AI-powered resale platform for season ticket holders and brokers. We automate pricing, listing, and distribution across all major marketplaces. Today, most tickets are still sold manually: spreads…

Tinfoil makes it easy to make your AI workloads provably private, without changing your code. You get the privacy of on-prem deployments, while running on the cloud. We’ve built a full-stack platform on top of the lat…

Trapeze empowers doctors to answer patient calls 24/7 with our voice agents clones of their best call center reps and receptionists. In the past 3 months, we’ve onboarded 140+ doctors nationwide serving 1,000,000+ patien…

Built to advance human taste to the frontier, TypeOS is the best way to write with AI.

Property appraisals suck — September’s new federal rules will make them even worse. ValueMate’s LiDAR-plus-AI app captures a property in a three-minute walkthrough and delivers a regulator-ready report on our dashboar…

We build home humanoids the practical way—an open, mass-produced developer kit powering a real-home teleop data flywheel to autonomy, giving families back 20 hours/week.

Vesence is building Cursor for Lawyers. Already rolled out firm-wide with a first major law firm. We launched in February. Imagine programming in Apple Notes. No linting, no cursor, you are on your own. That is how…

VoiceOS turns voice into a seamless, universal interface to 10x productivity — a true voice operating system for the next era of computing. It works across any app, letting users speak naturally to dictate, edit, and …

We're 2 repeat YC founders. We founded Plato (W16, sold to Coda) and Wolfia (S22). Quang lead Product/GTM for Coda Solutions and Fabien is ex-SWE at Meta and lead Engineering at Wealthfront before. We’re building Vybe…

Wavedash uses cutting edge browser technology to let gamers play the latest releases with no downloads or installation.

Willow is an AI dictation app that lets you type with your voice. Built to 4x the productivity of anyone spending too much time on email, docs, and AI prompting workflows. We’re Mac-only for now. You can try it free a…

YouLearn is an AI tutor for college students. It turns your learning materials into concise notes, an AI tutor you can talk to, and personalized tests.

We’re building AI-powered systems that automate manual work in scientific labs using robotics. Scientists simply type their experiment in plain English. Zeon translates it into code and runs it on robotic arms (no cod…

Zero empowers knowledge workers by transforming the way they manage their email. It intelligently summarizes important messages, helps complete tasks, and even enables users to chat directly with their inbox.