Co-Founder Matching

The first end-to-end co-founder matching experience.

Find a co-founder

Why Tertle for co-founders?

Recent signups

Vetted talented founders

Join a growing network of talented startup-ready founders. No cold outreach, no endless browsing — just warm intros to like-minded builders.

  1. Intro
  2. Trial
  3. Launch
  4. Agreement

With you every step of the way

From co-founder intros to faciliated trial projects to a Founders agreement, Tertle guides you every step of the way. It's not just a directory—it's a journey. 🐢

Tertle Wireframes

Delightful User Experience

Hand crafted from the ground up for solo founders by a solo founder who gets it. You can expect continuous ongoing improvements based on your feedback.

How it works

1. Create a profile

Share your skills, goals, and what you're looking for in a co-founder. It only takes a few minutes.

Ryan Connaughton

London, UK🇬🇧
Product & DesignSoftware Engineering
Maker of Tertle at your service 🫡
Ryan's avatar

2. Founder intros

Send and receive founder intro requests. Use your Tertle Inbox to chat, schedule calls, and manage your new found connections.

Tertle Inbox example light mode

3. Trial a project together

Create a Buildspace together — decide on a shared trial project to test the waters. Side hustle? Weekend sprint? Whatever fits. The point is to collaborate and see if you vibe together outside of surface intro calls.

Tertle Buildspace light mode example

4. Launch or thank you, next!

After the project trial, you'll know if there's a fit. If so, keep building and share your startup with the world. If not, no pressure — you gained experience, clarity and broadened your network! 👏

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5. Make it official

When you're ready to commit, Tertle can help you draft a founders agreement to ensure you're on the same page about roles, responsibilities, and equity distribution.

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Frequently asked questions