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Entrepreneur First

499 companies · 36% AI · Talent investor: founders meet and start a company in the program

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Entrepreneur First companies

Showing 40 of 499 companies

CompanyProgram
Agnost AIWe find where AI agents fail, then train better models to run them.ActiveAI, Data, DevtoolsYC +1S26
DecaworkTraining company-specific models that approve AI actions.ActiveAI, DevtoolsYC +1S26
8xHuman orchestration for business outcomes.Not statedOtherEF2026
Eliot AIThe AI workspace for financial compliance.Not statedAIEF2026
EverSettledAI infrastructure for inheritance.Not statedAIEF2026
HeliconAmerica's carbon fiber foundry for unmanned systems.Not statedOtherEF2026
HyphenboxThe annotation stack for robotics and physical AI.Not statedAIEF2026
Jack & JillAI enabled recruiterNot statedAIAntler +12026
KyberThe orchestration platform that runs critical infrastructure on time.Not statedOtherEF2026
LayrdLayrd is building a physician's favorite operating system.Not statedOtherEF2026
MilesResurfacing your saved content.Not statedOtherEF2026
OperonOperating brain for modern manufacturing.Not statedOtherEF2026
RigData infrastructure for business teams.Not statedOtherEF2026
Ressl AITrain, eval and build autonomous agentsActiveAIYC +1W26
A51Programmable RNA for cell modulation.Not statedOtherEF2025
AerskaDeveloping RNA medicines to treat, delay, and prevent diseases of the brain.Not statedOtherEF2025
AlludeBuilding the AI expert for factories.Not statedAIEF2025
AnqaThe orchestration layer for AI-powered risk management.Not statedAIEF2025
AppstackAI-driven analytics for mobile apps.Not statedAIEF2025
Ariana.devAutonomous bug-fixing development assistant.Not statedOtherEF2025
Asymmetric SecurityAI agents that fully automate cybersecurity incident response.Not statedAIEF2025
AtlasThe routing infrastructure for private aviation.Not statedOtherEF2025
Aule SpaceJetpacks for life-extension of satellites.Not statedOtherEF2025
AutosetTargeted data generation for AI developers.Not statedAIEF2025
Bluevia HealthAI to prevent post-surgical complications.Not statedAIEF2025
BrushlessBrand brain for agentic marketing.Not statedAIEF2025
Bubble RoboticsAutonomous underwater robots for marine work.Not statedOtherEF2025
Buckeye AIGiving domain experts the power to build, maintain, and scale their own automations.Not statedOtherEF2025
CatalonThe AI engine for the chemical industry.Not statedAIEF2025
CertoVanta for the consumer goods industry.Not statedOtherEF2025
Crewline AISupervised autonomy for construction vehicles.Not statedOtherEF2025
DaisyBuilding powerful tools for food processing excellence.Not statedOtherEF2025
DavisSetting a new time standard for real estate development.Not statedOtherEF2025
DelfaAI agents for clinical trial management.Not statedAIEF2025
EggiAI-powered network discovery that turns every connection into opportunities.Not statedAIEF2025
EigenOtherNot statedOtherEF2025
ElementModernizing legacy software.Not statedOtherEF2025
ElitraProgrammable yield infra for onchain liquidity.Not statedOtherEF2025
FactionAutonomous operations for industrial distributors.Not statedOtherEF2025
faffPersonal assistants at an affordable price.Not statedOtherEF2025

About Entrepreneur First

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Entrepreneur First
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Talent investor: founders meet and start a company in the program
Source
Entrepreneur First's portfolio page
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Monthly, on the first Monday; last read 2026-09-24, 499 rows
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Only what the program publishes is shown. Status is left as Not stated unless the program's own page says it. A company that also went through another program links to one page with both.

Sources: each program's public company list, read twice a week. Not affiliated with Y Combinator or any other program. Logos via logo.dev; trademarks belong to their owners.

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