Founders Directory LogoFounders Directory

Discover the next generation of startups.

A curated directory of high-growth companies backed by the world's most prestigious venture capital firms.

914Companies

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NOSO LABS logo

NOSO LABS

YCombinator

Build AI agents for field technicians to diagnose and sell 10x better

In the home services industry, field technicians are expected to handle three key tasks: diagnosing issues, making sales, and completing paperwork. It's rare to find individuals who excel at all three. We build AI agents to support technicians by improving diagnostic accuracy and helping them capture sales opportunities.

San FranciscoY Combinator LogoSummer 2025ActiveArtificial IntelligenceSan Francisco
Notte logo

Notte

YCombinator

Reliable Web Agents for Enterprise

Nottelabs offers a platform to build and deploy enterprise-grade browser agents. We help companies cut costs and save time by automating repetitive tasks. Unlike others, we provide agents, tools, and infrastructure through a single API, making us the fastest path to reliable web AI agents in production.

San FranciscoY Combinator LogoSummer 2025ActiveDeveloper ToolsAutomationAISan Francisco
Notyfi logo

Notyfi

YCombinator

Live alerts for anything happening in the world.

Notyfi tracks anything you want, anywhere it happens. Tell us in plain English what matters, new lawsuits, layoffs, price drops, listings, RFPs, breaking news, and we watch the news, filings, databases, and the open web for it. You get notified instantly, hourly, daily, or weekly, by email, on a live dashboard, or directly into your agents and workflows through our API and MCP.

San FranciscoY Combinator LogoSummer 2026ActiveArtificial IntelligenceB2BAutomationSan Francisco
Nowports logo

Nowports

YCombinator

The core engine of supply chain in LATAM

Nowports is the first digital Freight Forwarder shipping ocean containers to and from Latin America. One out of every two containers gets lost or delayed due to miscommunication and lack of management. The platform reduces human mistakes to 0% and saves up to 40% of delays with Nowports models and algorithms. Nowports assist companies so moving ocean containers is fast, simple and secure.

San Francisco, CAY Combinator LogoWinter 2019Active
Nox Metals logo

Nox Metals

YCombinator

Supplying America's Industrial Base

Nox Metals is an AI-powered metals supplier powering modern American manufacturing at scale. We are building automated factories that turn raw metal into production-ready material faster, cheaper, and more reliably than legacy service centers.

Detroit, MIY Combinator LogoSummer 2025ActiveManufacturing
Nucleo logo

Nucleo

YCombinator

The first Agentic platform for Oncology

We help oncologists and radiologists extract insights from CT scans to support tumor characterization and treatment. The hospitals we work with include Stanford Hospital, Cedars-Sinai, UCI Health, and Weill Cornell.

San Francisco, CAY Combinator LogoFall 2025Active
Numerion Labs logo

Numerion Labs

YCombinator

Artificial intelligence for drug discovery.

Numerion Labs is an AI-native company accelerating the discovery of life-saving medicines through the development and use of cutting-edge machine learning algorithms. The company unites computational chemistry, structural biology, and medicinal chemistry to pioneer the next generation of AI-driven drug discovery platforms.

San FranciscoY Combinator LogoWinter 2015ActiveAI-powered Drug DiscoveryDeep LearningBiotechDrug discoveryOncologySan Francisco
NURX logo

NURX

YCombinator

Medicine or testing kit, prescribed online and delivered to your door.

Nurx is a telemedicine startup focused on increasing access to healthcare, starting with birth control and PrEP services.

New York City, NYY Combinator LogoWinter 2016AcquiredConsumer Health Services
o11 logo

o11

YCombinator

Bespoke AI For Financial Firms

o11 builds bespoke AI software for financial services firms. Every firm works differently: different deal processes, data rooms, CRMs, market data tools, Excel models, slide templates, IC memos, reporting workflows, and approval steps. The edge is not making a generic deck or model faster with ChatGPT. It is turning your firm’s historical knowledge, judgment, templates, data, and execution style into repeatable software. We study how your firm actually works, then deploy custom AI agents and workflow tools across the systems your teams already use. That can include tailored Excel, PowerPoint, Word, and Outlook plugins; data room integrations; DealCloud, Salesforce, and market-data integrations; diligence automation; model and deck generation; reporting workflows; and firm-specific tools built around your process.

San FranciscoY Combinator LogoWinter 2026ActiveSan Francisco
OctaPulse logo

OctaPulse

YCombinator

CV and robotics to automate quality inspection in fish farms

OctaPulse uses AI vision to automate hatchery QA for fish farms, starting with broodstock phenotyping and juvenile deformity inspection. We cut inspection time from about 5 minutes to under 30 seconds per fish, with more than 90 percent accuracy, so farms advance only high quality fish and waste less feed and labor. Our goal is to bring automation across the entire fish production lifecycle for the $300B aquaculture industry. Aquaculture is the fastest growing food sector, and has already surpassed commercial fishing for production of seafood. Yet two of the most critical QA and QC steps in fish production are still done by hand: phenotyping and deformity inspection. These processes are slow, error prone, and despised by technicians but vital for the success of the farm, so much so that farms spend >$200K a year on trained technicians and geneticists to operate. We’ve built an AI vision platform for vertically integrated finfish farms that drops into existing workflows starting in the hatchery, uses off the shelf cameras, standardizes these QA steps, and creates a proprietary multi species dataset that becomes the brain for future autonomous aquafarms. Phenotyping is the start, but the platform is designed to be a drop in solution that can easily expand into feeding, health monitoring, and processing so we can solve production problems across the lifecycle. We signed a 6-figure paid pilot with the largest trout producer in the United States, are deploying into 2 more farms early 2026, and trained models above 90 percent accuracy while cutting inspection time from 5 minutes to under 30 seconds. Each deployment adds labeled images to our dataset and improves cross species generalization.

San Francisco, CAY Combinator LogoWinter 2026Active
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