Funded startups in North America: 4,093 companies

Markets in North America

Recent rounds in North America

1. Rejoy Health

   AI workers that book, scribe, code, interpret, and answer clinicians

   Y Combinator Winter 2021Vertical SaaS (health, legal, property)

2. Rejuvenation Technologies Inc.

   mRNA therapeutics to extend healthspan entering clinical trials

   Y Combinator Summer 2018Biotech & pharma

3. Relari

   Building dexterous robots that learn from human biomechanics

   Y Combinator Winter 2024Supply chain & procurement

4. Relationship Hero

   Dating & relationship coaching sessions for individuals and couples

   Y Combinator Summer 2017Creative & content AI

5. Relativity Space

   Building humanity’s multiplanetary future.

   Y Combinator Winter 2016Aerospace & low-altitude

6. Relaw

   AI Legal OS

   Y Combinator Fall 2025Vertical SaaS (health, legal, property)

7. Relay Health

   The #1 App to Quit Porn: Rebuild Focus and Intimacy

   Y Combinator Summer 2022Consumer health & wellness

8. Release

   Environments as a service

   Y Combinator Winter 2020Agent infrastructure

9. Relling

   deploying the first billion robots for manufacturing

   Y Combinator Summer 2025Agent infrastructure

10. Relvy AI

    AI powered debugging notebooks for incident response

    Y Combinator Fall 2024Agent infrastructure

11. Remi

    Simplifying roofing for homeowners, roofers and enterprises.

    Y Combinator Winter 2022Vertical SaaS (health, legal, property)

12. Remix

    Social media content auto-generated with your existing data

    Y Combinator Winter 2026Document & order intake

13. RentAHuman

    Marketplace for AI agents to hire humans.

    Y Combinator Spring 2026Agent infrastructure

14. RentFlow

    The AI infrastructure for cash-flow-aligned business rent

    Y Combinator Summer 2024SMB services & finance

15. Repacket

    Employee security done for you.

    Y Combinator Winter 2023Compliance & security

16. Repaint

    Build a website by chatting with AI

    Y Combinator Summer 2023Agent infrastructure

17. Replicas

    Run any coding agent harness in the cloud

    Y Combinator Spring 2026Agent infrastructure

18. Replika

    Replika is an AI friend that you can talk to designed to make you…

    Y Combinator Winter 2015Creative & content AI

19. Replit

    Collaborative in-browser IDE

    Y Combinator Winter 2018Agent infrastructure

20. Replo

    Sell anything

    Y Combinator Summer 2021Agent infrastructure

21. Repool

    Modernizing hedge fund back office software and services.

    Y Combinator Summer 2021Investing, trading & wealth

22. Reprompt

    AI Agents for Location

    Y Combinator Winter 2024Agent infrastructure

23. Rescale

    High Performance Computing Built for the Cloud

    Y Combinator Winter 2012Agent infrastructure

24. Rescript

    AI for Legal & Public Policy Teams

    Y Combinator Summer 2024Vertical SaaS (health, legal, property)

25. RescueTime

    Take Back Control of your Time

    Y Combinator Winter 2008Productivity & collaboration

26. Resend

    Email for developers

    Y Combinator Winter 2023Agent infrastructure

27. Resin Technologies

    Resin helps engineers design electronics faster and more reliably

    Y Combinator Fall 2026Agent infrastructure

28. Respan

    Self-driving observability, evals, and gateway for AI agents

    Y Combinator Winter 2024Agent infrastructure

29. Response

    Organizing the world's inventory.

    Y Combinator Summer 2020Supply chain & procurement

30. Resquared

    Marketing automation platform for selling to local businesses.

    Y Combinator Winter 2021Sales & marketing AI

31. Result

    Where new internet entrepreneurs build and run their companies

    Y Combinator Spring 2026Agent infrastructure

32. RetailReady

    An AI-powered supply chain compliance engine

    Y Combinator Winter 2024Compliance & security

33. Rethoric

    LinkedIn content consultancy and scheduling platform for busy founders

    Y Combinator Winter 2021Sales & marketing AI

34. Reticular

    Scaling Genomic AI for Embryo Selection

    Y Combinator Fall 2024Consumer health & wellness

35. Retool

    Build internal tools fast.

    Y Combinator Winter 2017Productivity & collaboration

36. RetroFix

    Automate any workflow using plain english

    Y Combinator Summer 2024Agent infrastructure

37. Retrofit

    A vintage marketplace curated by AI

    Y Combinator Winter 2025Agent infrastructure

38. Rev Genomics

    Rev is a biotechnology company creating better plants.

    Y Combinator Summer 2017Biotech & pharma

39. Revamp

    AI-Powered Customer Segmentation for eCommerce

    Y Combinator Summer 2023E-commerce & seller operations

40. RevenueCat

    Build and grow your app business

    Y Combinator Summer 2018Agent infrastructure

41. Revion

    Intelligence for Automotive Operations

    Y Combinator Winter 2026SMB services & finance

42. Revl

    AI edited video souvenirs as a service

    Y Combinator Winter 2016Sales & marketing AI

43. Zuma

    We help businesses convert leads into sales in minutes using text

    Y Combinator Summer 2021SMB services & finance

44. primitive

    communication for agents

    Y Combinator Spring 2026Agent infrastructure

45. refine

    Open-source Retool for enterprise

    Y Combinator Summer 2023Agent infrastructure

46. rekursiv.ai

    Scale AI scientists whose own breakthroughs accelerate the next.

    Y Combinator Summer 2026Productivity & collaboration

47. renderlet

    Build interactive applications that run anywhere

    Y Combinator Winter 2024Agent infrastructure

48. OutRival, Inc.

    Outbound AI Agents for Education, Insurance, and Travel

    Y Combinator Winter 2019Agent infrastructure

49. Outerport

    Design automation for industrial electrical controls

    Y Combinator Summer 2024Agent infrastructure

50. Outlit

    Protect and Grow Long-tail Revenue

    Y Combinator Winter 2025SMB services & finance