A sprint for cofounders who've just matched.

4 weeks to validate fit before talking equity and commitment.

Async-first, remote always. Built for busy schedules.

The Cofo Sprint is a structured 4‑week “trial project” for two people who are considering cofounding together.

You bring any idea (or pick a simple one), we scope a small, shippable outcome and run it like a real sprint with clear roles, weekly commitments, and async accountability.

By the end, you’ll have real data on how you work together. Communication, pace, ownership, decision-making, not just good vibes from calls.

Get Started

The cofounder trap is real

25 intro calls, 6 months wasted. Endless chats, no progress.

Wrong fit kills startups faster than bad ideas.

You need proof your co-founder can ship, communicate, and align, not just talk.

What you get

Clarity on working styles, reliability, decision-making.

Tangible output (version 1 of something, landing page, prototype, experiments).

Neutral facilitation - no bias, just results.

How it works

You bring your idea. Your coach scopes a 4-week MVP sprint with both of you. You execute together.

Week 1: Scope & alignment

Kick off, define roles and success criteria, and lock the first week’s tasks (“definition of done”).

Week 2–3: Build & momentum

Build together with two 30‑min check-ins per week plus async updates in Slack + Trello to keep progress visible.

Week 4: Ship & decide

Demo what you shipped, do a retro on how you worked together, and decide whether to commit or walk away.

Get Started

We run async-first (Slack + Trello) with two mandatory 30‑minute calls per week, scheduled around both calendars. The goal isn’t perfection - it’s proof of working compatibility under real constraints.

Pricing

It’s free and community-driven.

We keep Cofo Sprint intentionally small and selective, because the format only works when both people show up and follow through.

On a short intro call, we’ll ask a few quick questions and do a brief alignment check on time commitment, expectations, and whether you’re genuinely ready to run a 4-week “test drive” together.

If you’re a fit, your application is shared with our coaches based on your industry and timezone, and a coach who selects you will work with you through the sprint.

Our coaches are tech leads, PMs, and designers who have survived the startup world (and many are still building inside startups).

If it’s not the right moment, we’ll say no (or suggest when to come back), so the pairs we accept get a serious experience, not another half-start that fades out.

It’s free and community-driven.

We keep Cofo Sprint intentionally small and selective, because the format only works when both people show up and follow through.

On a short intro call, we’ll ask a few quick questions and do a brief alignment check on time commitment, expectations, and whether you’re genuinely ready to run a 4-week “test drive” together.

If you’re a fit, your application is shared with our coaches based on your industry and timezone, and a coach who selects you will work with you through the sprint.

Our coaches are tech leads, PMs, and designers who have survived the startup world (and many are still building inside startups).

If it’s not the right moment, we’ll say no (or suggest when to come back), so the pairs we accept get a serious experience, not another half-start that fades out.

It’s free and community-driven.

We keep Cofo Sprint intentionally small and selective, because the format only works when both people show up and follow through.

If you’re a fit, your application is shared with our coaches based on your industry and timezone, and a coach who selects you will work with you through the sprint.

Our coaches are tech leads, PMs, and designers who have survived the startup world (and many are still building inside startups).

If it’s not the right moment, we’ll say no (or suggest when to come back), so the pairs we accept get a serious experience, not another half-start that fades out.

Get Started

Become a Coach

If you’ve worked with early-stage startups (especially as a PM, product designer, or tech lead) and you’re great at keeping teams moving, you can apply to become a Coach and support new founder pairs.

Get Funding

We’re actively adding pre-seed investors and angels to the Cofo Sprint community, and we’re also building relationships with accelerators by location.

For founders, early relationships matter: even if an investor doesn’t commit immediately, they often stay close and re-engage once progress is real and consistent.

We’re actively adding pre-seed investors and angels to the Cofo Sprint community, and we’re also building relationships with accelerators by location.

For founders, early relationships matter: even if an investor doesn’t commit immediately, they often stay close and re-engage once progress is real and consistent.

We’re actively adding pre-seed investors and angels to the Cofo Sprint community, and we’re also building relationships with accelerators by location.

For founders, early relationships matter: even if an investor doesn’t commit immediately, they often stay close and re-engage once progress is real and consistent.

Get Started

Are you an early-stage investor?

See how founders work together before you invest — and get curated intros to our strongest pre‑seed teams. Learn more about partnering with us.

Stop guessing based on conversations. Run a real 4‑week trial, ship something together, and get the confidence to commit, or the clarity to walk away.