Free Finnish cofounder directory
Looking outside
your network?
Find collaborators today. The cofounder relationship comes later, when it clicks. A free directory for Finnish founders, cofounders, and collaborators.
Last brief published 11 hr ago · 4 profiles active this week
Live in the directory right now
Real Finnish founders. Browseable now.
Click any card to see their brief. Sign up only when you want to message.
Free, hosted at cost, Finland-first
Free directory. Deterministic matching. Real people who write their own briefs in their own words.
01
Hybrid brief composer
Pick role, stage, location, and commitment from structured controls. Add a short paragraph for the human on the other side. The fields drive matching, the paragraph drives trust.
Essential for: founders who want signal-rich matching
02
Brief-to-candidate ranking
Deterministic four-dimension score (role, stage + commitment, location, industry). No black-box matching, no embeddings, no AI. Every match shows the breakdown.
Essential for: everyone. The core of what we do.
03
Verified Builder badge
Connect GitHub, your startup website, your writing, a LinkedIn paste, or a research profile. Any one source unlocks the badge. Five lights the full ladder.
Essential for: non-technical founders evaluating technical talent
04
Both sides write a brief
Founders write what they need. Cofounders write what they want to join. The engine ranks one against the other, so both sides arrive with real context.
Essential for: cofounders who want to know the founder is real too
Active across Finland
Honesty before signup
Who this is for, and who it isn't
Most cofounder relationships form through existing networks and in-person events. The directory exists for the founders that gap does not serve.
For you if
International founders in Finland without a built-in Finnish network.
Post-program founders still searching after Startup Express, Oyster, or Founders Corner.
Founders chasing a specific archetype their existing network can't supply.
Anyone testing collaboration before committing to cofounder framing.
Probably not for you if
Teams that already formed inside a class, cohort, or shared workplace. Proximity wins; no platform improves that.
Founders looking for a paid hire. This is a cofounder directory, not a job board.
Anyone expecting commercial outreach. There is none. The platform is hosting-cost-only.
From the Blog
Everything you need to know
We pull real signals from your LinkedIn, GitHub, startup website, and public work, then use AI to build a deep capability model. Instead of matching on keywords or self-reported skills, our engine scores complementarity: a business founder sees technical cofounders who fill their gaps, and a developer sees founders who need their engineering. We even surface gaps neither side has articulated.
Yes, completely free. Create a profile, browse potential cofounders, and start conversations at no cost. We are focused on helping you find the right cofounder for your startup.
LinkedIn is a generalist network where you post 'looking for cofounder' and hope someone sees it. Cofounder forums are self-reported profiles with no verification. TrustedCofounder pulls real work evidence, matches on complementary capability gaps (not keyword similarity), and requires mutual interest before any conversation starts. No cold outreach, no spam, no guesswork.
Sign up as a Founder and connect your LinkedIn or startup website. Our AI analyzes your background and what you are building, then surfaces the capability gaps your startup needs filled. You get a ranked shortlist of cofounders whose verified strengths fill exactly those gaps.
Sign up as a Cofounder. Connect your LinkedIn or GitHub so we can verify your skills. We match you with founders whose startups need exactly what you bring, whether that is engineering, operations, marketing, finance, or something else entirely.
Most platforms and networks take months of searching. Our AI gives you a ranked shortlist of genuinely complementary people from day one. Each match is scored across multiple dimensions so you can focus on the best fits first.
About this platform
Cofounder brief board, Finland-first
Trusted Cofounder is a free Finland-first directory and brief-based matching tool, built in Oulu and serving founders across Helsinki, Espoo, Tampere, Turku, Oulu, Jyväskylä, Kuopio, and Vaasa. Both founders and cofounders write their own briefs using a hybrid composer (structured form plus a short narrative); a deterministic four-dimension engine ranks candidates against each brief.
What is Trusted Cofounder?
Trusted Cofounder is a free Finnish cofounder directory and brief-based matching tool based in Oulu. Founders and aspiring cofounders write their own briefs using a hybrid composer (structured fields plus a short paragraph), and a deterministic four-dimension engine ranks candidates against each brief. The platform is free, available in English and Finnish, and serves the entire Finnish startup ecosystem.
Who is Trusted Cofounder for?
Trusted Cofounder serves founders looking for cofounders and individuals looking for early teams to join across Finland — particularly international founders in Finland without a built-in Finnish network, post-program founders still searching, and founders chasing a specific archetype their existing network can't supply. Active cities include Helsinki, Espoo, Tampere, Turku, Oulu, Jyväskylä, Kuopio, and Vaasa. Verification comes from real artifacts of past work: GitHub, public writing, startup websites, and a LinkedIn paste.
Connect your LinkedIn and let our AI find the technical cofounder your startup needs.
Find Your Cofounder
Free, 60 seconds
No credit card
No spam
Real verification