Used by

founders worldwide

Find Your Ideal CoFounder.
& Test your compatibility.

The Vetting & Due Diligence platform for founders. Meet founders who match your vision, Assess your alignment & start shiiiiiiiiiiipinggg.

Test Compatibility

Find CoFounders

As Featured By

FEATURES

Features Built for Serious Founders

Everything you need to assess compatibility, explore founder profiles, and build meaningful co-founder relationships — now fully accessible from your browser.

CRM mode

We integrated a CRM feature inside OnlyFounders Web to allow you to filter the founders your are talking with based on your stage of conversation/ and your alignment.

Smart Founder Matching

Intelligent matching surfaces compatible founders based on your goals, startup stage, and complementary skills.

Compatibility Assessment

Test alignment with an existing or potential CoFounder with our in depth compatibility scoring across 35+dimensions

Founder Profile Insights

Detailed founder profiles with experience, startup interests, goals, and mutual compatibility indicators at a glance.

Shortlist & Compare

Express interest in co-founders and build a shortlist of your top matches for side-by-side comparison.

Localized Discovery

Filter by city, region, or community to find co-founders who are building in your area.

BENEFITS

Built to Help Founders Move Faster

Cut through the noise — find and vet co-founders using compatibility data, not guesswork.

Annual ROI

“Since switching to our new CRM workflow, we’ve reduced manual work, improved follow-ups, and seen nearly 50× annual ROI from increased customer retention and faster deal cycles.”

James McAtee

Growth Manager, Acuna Labs

Run Compatibility Assessments

Use structured questionnaires and scoring to assess alignment on vision, values, and work style before connecting.

Run Compatibility Assessments

Use structured questionnaires and scoring to assess alignment on vision, values, and work style before connecting.

Browse a Full List View

Access a filterable directory of founders — no swipe limits, explore profiles at your own pace from your browser.

Browse a Full List View

Access a filterable directory of founders — no swipe limits, explore profiles at your own pace from your browser.

Match by Startup Stage

Filter co-founders by stage — idea, MVP, or scaling — so every match is relevant to where you actually are.

Match by Startup Stage

Filter co-founders by stage — idea, MVP, or scaling — so every match is relevant to where you actually are.

Access the Web Platform Anywhere

No app download required. The full OnlyFounders experience is available right from any browser on any device.

Access the Web Platform Anywhere

No app download required. The full OnlyFounders experience is available right from any browser on any device.

Build Your Founder Network

Connect with co-founders, advisors, and mentors across a global network of 6,700+ ambitious entrepreneurs.

HOW IT WORKS

A Smarter Path to Finding Your CoFounder

From your first profile view to a matched co-founder, everything flows in one focused experience.

01.

Create

Set up your founder profile with your skills, startup idea, and what you're looking for in a co-founder.

Your profile goes live across our network of 6,700+ founders instantly.

Profile Created
Profile Live

01.

Create

Set up your founder profile with your skills, startup idea, and what you're looking for in a co-founder.

Your profile goes live across our network of 6,700+ founders instantly.

Profile Created
Profile Live

01.

Create

Set up your founder profile with your skills, startup idea, and what you're looking for in a co-founder.

Your profile goes live across our network of 6,700+ founders instantly.

Profile Created
Profile Live

02.

Assess

Run a compatibility assessment to score alignment with potential co-founders. Browse the list view to explore and compare profiles.

Compatibility data helps you skip the guesswork and focus on real founder fit.

Assessment Complete
Match Score Ready

02.

Assess

Run a compatibility assessment to score alignment with potential co-founders. Browse the list view to explore and compare profiles.

Compatibility data helps you skip the guesswork and focus on real founder fit.

Assessment Complete
Match Score Ready

02.

Assess

Run a compatibility assessment to score alignment with potential co-founders. Browse the list view to explore and compare profiles.

Compatibility data helps you skip the guesswork and focus on real founder fit.

Assessment Complete
Match Score Ready

03.

Connect

Request to connect, start a conversation, and build your co-founder relationship — all directly from your browser.

Founders who run assessments before connecting report 3x stronger partnerships.

Connection Made
Partnership Started

03.

Connect

Request to connect, start a conversation, and build your co-founder relationship — all directly from your browser.

Founders who run assessments before connecting report 3x stronger partnerships.

Connection Made
Partnership Started

03.

Connect

Request to connect, start a conversation, and build your co-founder relationship — all directly from your browser.

Founders who run assessments before connecting report 3x stronger partnerships.

Connection Made
Partnership Started

ECOSYSTEM

One Platform, Every Founder Tool

OnlyFounders connects with the communities and tools founders rely on, keeping your network in sync.

Our Testimonials

User Reviews and Feedback

See how OnlyFounders App has transformed users’ social experiences through their own words.

Adem Makni
App is very easy to use and clear for the new user. Helps find other users who share the same objectives
Youssef Ben Romdhane
Très simple a utilisé et très efficace, J'ai adoré
HS
Amazing App to find the best networking events and co founders, this app have helped me a lot and were all very interesting, it has a great plus compared to EventBride that doesn't filter networking events.
Saddam Boudaboussa
Unique blend between tinder and Linkedin, Love the Overall UI of the App, It seems supper smooth and useful

katerennada
Vraiment cette application est incroyable
Karl T HBSC
Actually I just wanted to look and I was didn't have much hope. But I love the app design. It connects like minded people in a good playful way by matching. And also the content of the app brings a lot of extra value.
rKyeu
Great app with huge potential for entrepreneurs, really recommend
Trapuccino
The best thing since LinkedIn. Been so helpful with connecting with investors and like minded entrepreneurs. Everything functions perfectly.

BLOG

Insights for Smarter Founder Matching

Founder stories, compatibility tips, and platform updates to help you build the right team, faster.

Business Growth

5 Signs Your Business Needs A CRM

If your team struggles with scattered customer data or missed follow-ups, it may be time to upgrade your workflow.

Business Growth

5 Signs Your Business Needs A CRM

If your team struggles with scattered customer data or missed follow-ups, it may be time to upgrade your workflow.

Sales

Mar 18, 2026

5 min read

Why Sales Teams Need Pipeline Visibility

Clear pipeline visibility helps teams prioritize opportunities, forecast revenue, and close deals more effectively.

Productivity

Apr 1, 2026

5 min read

The Benefits Of Centralizing Customer Data

Keeping customer information in one place helps teams work faster, collaborate better, and make smarter decisions.

Small Business

May 9, 2026

7 min read

How Businesses Can Scale With viviCRM

A well-structured CRM helps small businesses stay organized while growing their customer base efficiently.

See All

FAQ

Frequently Asked Questions

Get quick answers about the OnlyFounders web platform, compatibility assessments, and how to find your ideal co-founder.

What is the OnlyFounders web platform?

OnlyFounders is a platform to find co-founder matches using compatibility assessments, smart filtering, and a full list view of founders — accessible entirely from your browser.

Is there a free trial available?

Yes, you can get started for free and explore founder profiles before upgrading to a paid plan.

How do compatibility assessments work?

Assessments score you and potential co-founders across dimensions like vision, work style, skills, and commitment — generating a compatibility rating to guide your decisions.

Can I use OnlyFounders on any device?

Yes. The web platform works on any device — desktop, tablet, or mobile — directly from your browser with no app download required.

What if I already have a startup idea?

Even with an idea, the platform helps you find co-founders who complement your skills, plus access advisors and early team members to build your team faster.