How to find a cofounder in Finland in 2026: every channel that works, ranked

You have decided you need a person, not a plan. Someone who covers what you do not, who will take the same risk, and who is in Finland or willing to build with someone who is. The question is where such a person is right now and how to get a reply from them.

This guide ranks every channel that produces cofounders in Finland, by how often it actually does. It is written from the inside of a free public directory of Finnish founders and cofounders, so it starts with what that directory can show you today, and it is honest about what the directory cannot do.

Who is looking right now

The fastest answer to "is anyone out there" is a number that updates itself. There are 79 founders listed today who have an idea or a company and want someone to build it with, and 70 cofounders listed today who want to join someone else's. Both counts are live: they are read from the directory each time this page is rendered, so what you see is what is listed.

By city, the pool is concentrated where the platform started and is spreading south: 81 people in Oulu listed today, 24 people in Helsinki listed today, and a smaller group in 5 people in Tampere listed today. Every card carries a "last active" label, so you can see who has been here this week before you spend a message on them.

The mechanism is deliberately simple. Everyone has a public page at a stable address. You read what a person has written about what they are looking for, in their own words. If it fits, you write to them. If they accept, a conversation opens with your message already in it. There is no algorithm choosing for you, no score, no paid tier, and profiles do not expire. It is free for you to use.

Why your existing network did not supply one

If you are reading this, your network has already been tried. It usually fails for one of three reasons, and knowing which one is yours tells you which channel to work first.

You are international and your network is somewhere else. You moved here for a job, a degree or a partner. The people who would have introduced you to your cofounder in London, Lagos or Lahore do not know anyone in Espoo. Finnish networks are real but quiet, and they run on mutual contacts you do not yet have. The guide for this situation is New to Finland and building a startup: how to find a cofounder here.

You finished a programme and the cohort dispersed. Startup Express, Kiuas, Founders Corner and the university tracks are excellent at producing ideas and confidence. They are less good at producing a second founder for the one team that did not form during the programme. When the last session ends, so does the room, and the people you would have asked have gone back to their jobs.

You need a specific kind of person your circle does not contain. A sales founder with no engineer among their friends. An engineer whose friends are all engineers. A domain expert in healthcare or manufacturing whose colleagues are employees, not founders. This is the most common case and it has two dedicated guides: finding a technical cofounder as a non-technical founder and finding a business or sales cofounder as a technical founder.

Whichever it is, the fix is the same in shape: you have to become findable by strangers, and you have to go where the strangers who want what you offer are actually looking.

Every channel, ranked by how often it produces a cofounder

This ranking is opinionated and it is based on what we see in the directory, in the conversations that start there, and in what founders tell us brought them here. Treat it as a starting order, not a verdict on any community.

1. A public directory where people say what they need

This is the channel we run, so read the caveat first: a directory only works if the person you need has listed themselves, and in Finland that pool is measured in the low hundreds, not thousands. What it does better than anything else is remove the two costs that kill every other channel. You do not have to be in the right room on the right evening, and you do not have to guess what someone wants, because they wrote it down.

Browse the directory, or go straight to founders looking for a team or people who want to join one. Filter by city and by what a person does. Then read the "Looking for" section on a page before you write. That section is the whole product.

2. The network you already half-belong to: post-programme communities

Finland's pre-incubators and accelerators are where the highest density of people who have decided to found something can be found in one place, and most of them are free. The cohort you were in is your first list. The cohorts before and after yours are your second, and programme alumni channels are usually open to asking.

• Startup Express in Oulu is a 14-week pre-incubator run with the University of Oulu at Startup Station, free, two to three rounds a year, open to people with an idea and to people who want to join a team. That last clause matters: it is one of the few programmes in Finland that explicitly admits joiners.
• Founder's Corner, also in Oulu, is a hands-on workshop series for people at the very start, run at Business Corner on the Linnanmaa campus, in Finnish.
• Kiuas describes itself as a founder collective for ambitious idea-stage builders, based in the Otaniemi ecosystem in Espoo.
• Startup Sauna is the student-led hub in Otaniemi that houses Aaltoes, Kiuas and Junction; the accelerator that carried its name closed years ago, but the space and the community are very much alive. Our guide: Startup Sauna and the cofounder search.
• Tribe Tampere is the community operator of Platform6, the startup house in Tampere. Our guides: Tribe Tampere and Platform6.

If you went through one of these and left without a team, say so in your profile. "Startup Express spring 2026, still looking for a technical cofounder" is a stronger sentence than most people realise: it tells a reader you have already done the work of deciding.

3. Universities

The three university ecosystems that matter for this are Otaniemi (Aalto), Linnanmaa (Oulu) and Hervanta (Tampere). Each has a student-run entrepreneurship society, an on-campus hub and a steady flow of people who want to build something but have not met their other half.

• Aalto: Aaltoes is the student entrepreneurship society founded in 2009, and the Otaniemi campus is where Kiuas and Startup Sauna sit. Our guide: Aalto University and the cofounder search.
• Oulu: Business Kitchen is the universities' entrepreneurship hub shared between the University of Oulu and Oamk. Our guides: Business Kitchen, Oamk and Tellus Innovation Arena.
• Tampere: the university and Platform6 are ten minutes apart. Our guide: Tampere University and the cofounder search.

The honest limitation: university channels skew toward people who are early, part-time and still deciding. If you need someone who can commit full time next month, you will spend a lot of evenings for a small number of candidates. If you need energy and a builder who will grow with the company, this is where they are.

4. Slush and the events around it

Slush is on 18 and 19 November 2026 in Helsinki, and it is the one week of the year when the entire Finnish ecosystem is in one city. It is also the worst place to find a cofounder by walking around: everyone is there to meet investors, customers or press, and a stranger asking "want to start a company with me" gets the polite version of no.

What works is the week after. People come home from Slush with a list of ideas and a renewed itch, and that is when a message that says exactly what you are building and exactly who you need lands. Our guide on using the moment: After Slush: the cofounder search. The smaller events are better for actual conversations: Polar Bear Pitching in Oulu, Startup Weekend in Tampere, and the monthly community evenings at each hub.

5. The LinkedIn or Telegram post

"Looking for a CTO for my startup, DM me" is the most common approach and the least effective. Developers see dozens of them and read each as "I have an idea and would like free labour for equity". Business people see "developer with a side project seeks someone to do the boring parts". Both readings are usually unfair, and both are what the post signals when it carries no evidence.

A post can work when it is specific enough to be filtered: who you are, what exists already, what the other person would own, and where you are. That is also, not by accident, exactly what a good directory profile contains. Write the profile first and link it from the post, so the post has somewhere to send the one person who is interested.

6. Global cofounder platforms

Y Combinator's cofounder matching, CoFoundersLab, Foundersbase and the rest are real products with large pools. They are also global by design, which in practice means that a Finnish founder there is one of a handful among tens of thousands, and most replies come from people who are not going to move to Kuopio. We compared them in detail, including which are free and which you can browse without an account: Cofounder matching platforms compared: free vs paid.

They are worth a profile if you are genuinely open to a remote cofounder in another country. They are not a substitute for being findable in Finland.

Write what you need before you look

Every channel above ends the same way: a person reads something you wrote and decides whether to reply. Write that thing first, and write it once, well.

The directory asks for it as a "Looking for" description of between 30 and 1,500 characters. Thirty is the minimum, not the target. The descriptions that get replies share four properties.

1. They name the role and what it owns. "A technical cofounder to own the product end to end" is readable. "Someone technical" is not.
2. They say what already exists. An idea, a prototype, ten conversations with customers, a company with first revenue. Each of these attracts a different person, and hiding which one you have wastes everybody's time.
3. They say what the other person gets. Equity, a real share of decisions, a title if that matters, and an honest statement about salary, which in the beginning is usually "none yet".
4. They say where you are and how you want to work. City, remote or not, full time or evenings. A reader in Tampere who wants to build in person needs to know you are in Oulu before the first message, not after the third.

Three shapes that read as real, paraphrased from the kinds of descriptions that get written to on the directory:

• A software engineer in Oulu with a working prototype for a B2B tool, looking for a commercially minded cofounder who will own customers, pricing and the first sales, and who wants a say in what gets built rather than a quota.
• A domain expert in Helsinki with a validated problem in healthcare and no engineer, looking for a technical cofounder who will own the whole technical side from day one and is comfortable with regulated products.
• An experienced commercial operator, open to joining an early-stage team as a cofounder rather than starting one, who says what stage they want to join at and what they will not do.

None of these is long. Each one lets the right reader recognise themselves in the first sentence and lets the wrong reader move on without a wasted message.

Oulu, Helsinki, Tampere, or remote

Where you are changes what the search looks like, because the pools are shaped differently.

Oulu is the deepest pool on the directory and the one with the most hardware, wireless and engineering depth per capita in the country, a legacy of the Nokia years that now shows up in 5G, wearables and industrial startups. See 81 people in Oulu listed today and the Oulu directory page, plus our guides on technical cofounders in Oulu, 5G and wireless and hardware and wearables.

Helsinki and Espoo have the largest ecosystem, the most international founders and the most competition for the same people. See 24 people in Helsinki listed today and the Helsinki directory page. If you are international, our Helsinki guide for international founders is the place to start.

Tampere is smaller on the directory and tightly organised around Platform6 and the university. See the Tampere directory page and the Tampere guide for international founders.

Remote across Finland is more common than the city pages suggest. A team split between Oulu and Helsinki is a two-hour flight or a night train apart, and several of the strongest Finnish teams have been built that way. We wrote about it in Oulu to Helsinki: why Finland's best startup teams are cross-city, and about when local beats remote in remote vs local cofounder in Finland. On the directory, people who are open to remote say so on their card.

From first message to first meeting

The first message is where most searches quietly die, so here is what the data from the directory says about it.

Write to people who are active. Every card and every profile page shows when the person was last here: this week, this month, or over a month ago. Of the one-way conversations we looked at when we built that label, the largest single group had gone to someone who had already stopped logging in. That person is not rude. They are gone. Spend your first messages on people active this week.

Say why them. A message that could have been sent to anyone reads as if it was. One sentence about what in their profile made you write, one about what you are building and what exists, one about what you are proposing to talk about. Under 120 words is fine. Over 300 is a sign you have not decided what you want.

Expect a real answer rate, not a perfect one. On the directory your Sent tab shows whether the recipient has seen your interest and when. Some will see it and not act, which is information too. A first message that gets no reply in two weeks is not a signal to send a second; it is a signal to write to the next person.

Meet before you decide anything. A video call to see whether you can disagree productively, then a small piece of real work together: a customer interview, a spec, a weekend prototype. The founders who skip this stage are the ones trying to unwind a 50/50 split six months later.

Equity, vesting and the shareholders' agreement

You do not need to settle equity to start talking, and you should not try to. You do need to know the shape of the conversation before the second meeting, because the person across the table will.

Three things carry most of the weight. The split itself, which is rarely equal and should reflect what each person has already put in and will put in next. Vesting, which means each founder earns their shares over time, usually four years with a one-year cliff, so that a cofounder who leaves after four months does not leave with a quarter of the company. And the shareholders' agreement, the private contract between founders that decides what happens when you disagree, when someone leaves, and who owns what was built.

We have a full guide to splitting equity between cofounders in Finland, and a Finnish-language guide to the osakassopimus, the shareholders' agreement, which is the single most important document you will sign. Read both before the meeting where the topic comes up. Nobody regrets having done so.

Questions people ask at this point

Do I need to speak Finnish? No. The directory is English-first, most profiles are written in English, and the programmes above run in English or in both languages, with the exception of Founder's Corner, which is in Finnish. If you are building for the Finnish domestic market, a Finnish-speaking cofounder is an asset. For everything else, the language of your team is whatever you both speak.

Is it free? The directory is free with no paid tier and no expiry. Startup Express and most university programmes are free. Slush is not.

How long does it take? Longer than a week and shorter than a year, if you are actively looking. The people who find someone in a month are the ones who wrote a specific description, sent specific messages to active people, and met in person quickly. The people who take a year are usually waiting to be found.

Can I do this from outside Helsinki? Yes. The largest pool on the directory is in Oulu, and cross-city teams are normal here. What you cannot do is be vague about where you are and how you want to work.

What if I only have an idea? Then say so, and say what you have done to test it. An idea with ten customer conversations behind it is a different proposition from an idea alone, and both are honest starting points. We wrote about the idea-only case in You have a startup idea but no cofounder. Now what? and about testing before committing in validate a startup idea before you commit to a cofounder.

If you want the guide for your specific situation, they are here: non-technical founder looking for a technical cofounder, technical founder looking for a business cofounder, joining a startup as a cofounder, and new to Finland.