7-week accelerator for seed-stage startups

Startup Sauna is an accelerator focusing on raising the valuation of seed-stage startups. The accelerator provides hands-on help with fundamentals, achieving investment readiness and meetings with investors & potential customers.

Startup Sauna is a brand for an international community of entrepreneurs, investors and industry experts who want to give back to the ecosystem. Hence the accelerator is zero-equity.

The community has been accelerating founders since 2010. Here you will find the most experienced coaches in the Europe.



Intensive, full-time 7-week program held at the Startup Sauna co-working space in Helsinki, Finland.

Program offers help with fundamentals for seed-stage startups’ pain areas. Fundamentals meaning, vision, product-market-fit, go-to-market, HR/team and fundraising to name a few.

70+ serial entrepreneurs, angel investors and VCs are coaching during the program, so startups will get to have dozens of investor meetings and 1on1 sessions with people who’ve actually built companies from ground up.


Demo Day

The program ends on Demo Day, where startups will be pitching to investors and media. Fall 2017 Demo Day will be held at Slush.



All teams from both the spring and fall batch have free access to Slush, will get a stand during the conference, and have a chance to apply for the Slush 100 pitching competition.


London & Berlin / Silicon Valley

Selected teams will have a chance to participate in our Berlin+London trip after the program. We take our A-round alumni for a similar trip to Silicon Valley.

During the trip, we’ll meet angel investors and VCs, visit startups and get to know their respective startup ecosystems.


Applicable teams

We are constantly on a lookout for the next founder’s with ambition and attitude.

We’re looking for:

– A team that can execute, and why they are building the company

– Scalable business idea

– Working prototype or already launched product


How to apply?

a) Local events

Easiest way to get in Startup Sauna accelerator goes through our local events. Local events are free one-day coaching events where 1-3 best startups will be shortlisted to the last selection stage.

During the event, startups get feedback on their pitch and have a chance to get 1on1 coaching from serial entrepreneurs, angel investors and VCs.

b) Open application

Open worldwide, to those who can’t make it to an event.

Application opens when we blast in on our social media channels!