With great power comes great responsibility.

We believe that the tech sector will play an even bigger role in boosting the global economy over the coming decades, ultimately making life better across Europe. If not us, then who?


The tech flywheel concept, introduced by Atomico in 2021, describes a self-sustaining loop where talent, capital, and expertise are continuously reinvested into the ecosystem. Each success story fuels the next.

With startups staying private for longer, secondary investments offer a fantastic way to gain liquidity and reinvest back into the ecosystem, keeping the wheel turning.

For Founders

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For Startup Employees

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For Investors

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For Founders • For Startup Employees • For Investors •

At Siena, we’re committed to being the most open and approachable partner out there. We’re here for anyone looking to discuss their ideas and aspirations. 

Together, we can figure out how to make things happen – whether it’s helping you invest in that high-growth startup you missed out on or chatting about the right time to sell part of your stock options, allowing you to diversify your portfolio or buy that dream home.

Here’s what we look for when investing in high-growth startups.

  • Usually no primary investments in the company.

  • We are focused on scale-up phase companies.

  • Product-market fit and repeatable commercial traction are achieved.

  • The company has passed the “Valley of Death” and is in a high-growth scaling phase. At least 10M EUR annual revenue with 50+% YoY growth.

  • We expect to see a clear path to the final liquidity event either as M&A or IPO.

  • But open to opportunities across the Nordics. Regardless of the HQ location we want to see that the company has originated from these regions.

  • Discount and other deal terms vary case by case, but the focus is getting a win-win solution.

Read how angel investor Jussi Heinila has used secondaries.

Jussi’s journey shows that you should never act from a place of fear or impatience. A mix of good timing, patience, and strategic decisions can lead to remarkable returns.

Learn more