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.

858Companies

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Avea Robotics logo

Avea Robotics

YCombinator

The human-in-the-loop system for robots

We built the fastest software to control robots from anywhere in the world. We make it possible for robotics companies to keep their robots at 100% uptime, and intervene instantly when a failure occurs.

San FranciscoY Combinator LogoSpring 2026ActiveSan Francisco
Avelis Health logo

Avelis Health

YCombinator

We audit medical claims for self-insured employers and health plans.

๐–๐ก๐ฒ ๐ฐ๐ž ๐›๐ฎ๐ข๐ฅ๐ญ ๐ญ๐ก๐ข๐ฌ: I (Angel) have had three knee surgeries since my mid-teens and was billed more than $250K for care that should have cost a fraction of that. Fighting those inflated charges was so painful that we set out to build a consumer-facing AI agent to do it for others. In less than five months, we helped sixty patients erase or reduce over $300K from their medical bills. This inspired us to fix the problem farther upstream: stopping bad payments before the patient ever sees a bill. So we launched payment integrity, machine-learning models that audit every medical claim for self-insured employers and health plans in real time. ๐“๐ก๐ž ๐๐ซ๐จ๐›๐ฅ๐ž๐ฆ: โ€ข Self-insured employers waste $60 B+ each year on claims that never should have been paid. Healthcare is the 2nd largest company expense after payroll. โ€ข Manual audits are slow and partial: Reviewers focus only on high-dollar claims, letting millions more slip through unnoticed. โ€ขย Existing audit software is static: Decades-old rule engines canโ€™t keep pace with evolving codes, contracts, or billing tactics. โ€ข Incentives are misaligned: Third-party administrators are paid to process claims, not to police them, so accuracy checks are minimal. ๐Ž๐ฎ๐ซ ๐’๐จ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง: Our models audit medical claims before and after payments have been issued. We catch nuanced billing, coding, and contract errors to save 3-7% on annual claims spend. We work with self-insured employers and health plans. ๐€๐›๐จ๐ฎ๐ญ ๐”๐ฌ: Angel Onuoha (CEO) and Ahmad Shehu (CTO) have worked together for 4 years. Before Avelis Health they built Zuvy, a Lagos-based fintech company that provided invoice factoring to small businesses. Zuvy was acquired by The BAS Group in 2025.

San Francisco, CAY Combinator LogoSummer 2025Active
Avoice logo

Avoice

YCombinator

Harvey for Architecture

Avoice is an AI-native workspace for architecture firms that automates the non-design work that takes time away from design. The platform uses AI agents that understand drawings, specifications, schedules, materials, codes, and research. Today, firms using Avoice manage over $300M in active projects on the platform. Architecture is a massive market ($300B+) but a deeply underserved one: highly fragmented, dominated by small firms, and reliant on legacy tools that require heavy customization. AI creates a unique opportunity to deliver firm-specific automation at scale, and Avoice brings these workflows into become the operating system for architectural practice.

San Francisco, CAY Combinator LogoWinter 2026Active
AxionOrbital Space logo

AxionOrbital Space

YCombinator

Foundation models for 24/7 Earth Observation

AxionOrbital Space builds foundation models that enable continuous visibility through clouds and darkness. Legacy optical satellites are rendered useless 70% of the time by weather and night cycles, while Synthetic Aperture Radar (SAR) produces data that is unintelligible to humans and breaks standard vision pipelines. We solve this by translating raw radar backscatter into analysis-ready optical imagery in real-time. Our proprietary architecture uses deterministic one-step diffusion to transform complex radar signals into clear, photorealistic images. This enables persistent, 24/7 situational awareness for defense, commodities trading, and disaster response, guaranteeing visibility even when the sky is blocked.

San FranciscoY Combinator LogoWinter 2026ActiveSan Francisco
Axis logo

Axis

YCombinator

An AI Copilot for Trading Desks

Axis is building an AI Native Trading System, allowing a trader to deploy models that monitor and analyze relevant markets and strategies. We've chosen commodities as our first market. Commodities make up a third of global goods exports, and physical commodities traders decide the movement and storage of metals, agricultural products, and energy across the globe. They trade in public markets and bilateral OTC agreements. Engaging in these markets is complexing, covering derivatives positioning, refinery data, storage inventory, import/exports, geopolitical events and more. Axis is building an AI driven analytical layer for these markets.

San FranciscoY Combinator LogoWinter 2026ActiveSan Francisco
BackerKit logo

BackerKit

YCombinator

The only end-to-end crowdfunding platform built for todayโ€™s creators

BackerKit is crowdfunding like youโ€™ve never experiencedโ€”the only end-to-end platform built for todayโ€™s serious creators. BackerKit empowers creators to successfully manage and grow their crowdfunding campaigns. Since 2012, we've partnered with creators to build tools, such as the BackerKit Pledge Manager, that simplify campaign management for platforms like Kickstarter and Indiegogo. In 2022, we launched our own crowdfunding platform, offering a seamless end-to-end solution for creators and backers alike. We believe that itโ€™s time that creators got more from crowdfundingโ€”More fans. More funds. And waaay more fun. Keep a look out as the BackerKit team continues to innovate in the crowdfunding space: https://www.backerkit.com/for-creators

San FranciscoY Combinator LogoSummer 2012ActiveSaaSCrowdfundingSan Francisco
Backpack logo

Backpack

YCombinator

Marketplace to get stuff from overseas

Shopping? Buy overseas. Traveling? Earn some extra cash. Let backpack help you save that high shipping cost or earn a little extra. Backpack is a peer-to-peer platform that connects travelers and shoppers to give people access to products across markets in all continents. Each backpacker, regardless of their role as a carrier or a shopper, follows a simple four-step process to either earn or save money from their backpacking experience. Travelers share their travel information and specify what kind of items they want to carry. Then they wait to get a "backpack request" and ask their price. Finally, they confirm the deal, buy the items, deliver them and earn money. Shoppers on the other hand, search items from their favorite websites and fill out the item description. Then they give their location and find a traveler coming to their city. Finally they "request backpack" and confirm the deal. Within days they can get the product and save money. backpack is founded with a vision to provide every citizen of the world with a choice; the choice of buying organic, authentic, and cost effective products with minimum friction. Whether the product is state-of-the-art consumer electronics, exotic pashmina from the south-east, or even medication that are rare in some parts of the world and not so rare in others - we promise ourselves to get those products to your doorsteps. We would like to reject the counterfeits, we would like to reject the almost-originals, most importantly, we would like to not pay the heavy expense incurred, most of which we deem to be superfluous. Help us make a better, more original globalized world.

New York City, NYY Combinator LogoSummer 2014ActiveMarketplaceInternational
Bankjoy logo

Bankjoy

YCombinator

An end-to-end digital banking solution for banks and credit unions

Bankjoy provides a full suite of modern digital banking software, including mobile banking, online banking, online account opening, loan applications, and conversational AI to banks and credit unions.

Troy, MIY Combinator LogoWinter 2015ActiveBanking as a ServiceConversational BankingFintech
BaseFrame logo

BaseFrame

YCombinator

Detect what AI can automate for your team

Most teams want to plug in AI but don't know where to get started. BaseFrame's desktop app finds exactly what to automate for each employee using the historic data on their computer. Instead of relying on screen recording or generic AI demos, we use the existing history of how work gets done across email, docs, Slack, calendar, browser, and files to identify the highest-value automations. We use local models so that your sensitive data doesnโ€™t have to leave your system. Once you find a set of automations, send them off to your automation tool of choice and share them with your team so that everyone can get productivity boosts.

San FranciscoY Combinator LogoWinter 2026ActiveSan Francisco
Bayes Impact logo

Bayes Impact

YCombinator

Tech nonprofit building the future of public services.

Bayes Impact's mission is to change the world through algorithms. We solve pressing public interest problems by building technology solutions that leverage data to improve outcomes on a large scale. More information at www.bayesimpact.org

San FranciscoY Combinator LogoSummer 2014ActiveNonprofitSan Francisco
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