Angel investor · Helsinki, Finland
Recorded investments.
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of dated first investments
were at Angel, Pre-Seed or Seed
One dot = one company at first recorded investment.
Written insights from the recorded portfolio, with the evidence linked below.
Risto Siilasmaa has dated investments in 8 companies. 4 first entries were at Angel, Pre-Seed or Seed (50.0%). An early-stage founder can use the sector and stage filters to find comparable companies before approaching the investor.
Explore the evidence ↗2 first company relationships appear in the latest 24 months, compared with 0 in the preceding window. The latest recorded investment is 2025-07-08. This describes observed activity through 2026-05-22; it does not establish current availability.
Explore the evidence ↗3 of 6 companies with a full 24-month observation window raised another equity round. This investor backed 1 of those companies again within that window. The difference is a reason to research the wider syndicate, rather than assume the same investor will fund the next round.
Explore the evidence ↗Artificial Intelligence is the largest displayed sector by company count, appearing in 2 portfolio companies; sector tags overlap. 0 first entries carry a recorded lead flag and the median first-round syndicate includes 4 other named backers. Shared rounds are evidence of co-investment, not evidence of an introduction route.
Explore the evidence ↗Start with observed behavior.
Every rate has a defined denominator.
25th–75th percentile across 8 disclosed first rounds. Total round size; the investor’s own cheque is undisclosed.
Size your round ↗22 May 2024–22 May 2026, versus 0 in the preceding 24 months.
See the rhythm ↗3 of 6 companies with a full observation window. The next round can include any investor.
Follow the path ↗1 of the same 6 companies. Build a financing plan around the wider investor market.
Explore co-investors ↗Choose your sector and stage to find
companies he first backed in that space.
A match means a recorded investment in this category. It does not establish current interest or availability.
All sectors · All entry stages. Round amounts are total financing, in USD.
Developer of in-wheel electric motor platform
$29M total first roundAI-based financial data platform for M&A professionals to find acquisition targets companies
$13M total first roundAI based application development using SQL syntax
$1.4M total first round| Sector | Seed | Series A | All stages |
|---|---|---|---|
| Artificial Intelligence | 2 | ||
| Native AI in Software Development | 2 | ||
| Cybersecurity | 2 | ||
| EV Powertrain Systems | 1 | ||
| Electric Vehicles | 1 | ||
| Green Transport | 1 | ||
| Data as a Service | 1 |
Use stage-specific financing ranges
to frame the size of your syndicate.
Logarithmic scale. A dot marks the median; the band spans the 25th–75th percentiles. These are entire rounds, not individual cheques.
A subsequent round and repeat backing
answer different fundraising questions.
Includes first investments on or before 22 May 2024. 2 newer companies and 0 undated histories are excluded. Follow-up stops at the dataset’s latest round on 22 May 2026. These observations do not measure returns or predict a company’s outcome.
| First stage | Eligible companies | Next round ≤24 mo | Same investor again ≤24 mo |
|---|---|---|---|
| Seed | 3 | 1 / 3 | 0 / 3 |
| Series A | 3 | 2 / 3 | 1 / 3 |
Separate first investments from later
rounds in companies already backed.
*2026 is partial, through 22 May. Bar height counts first investments + repeat rounds; earlier years are complete calendar periods in this dataset.
Frequent shared rounds suggest a place
to investigate sector and stage alignment.
3 shared rounds · 3 companies
Latest shared round May 20252 shared rounds · 2 companies
Latest shared round Nov 20151 shared rounds · 1 companies
Latest shared round Dec 20181 shared rounds · 1 companies
Latest shared round May 20191 shared rounds · 1 companies
Latest shared round Dec 2018Shared rounds establish recorded co-investment. They do not establish a personal connection, introduction route, or current willingness to invest.
First investment comes first.
Amounts refer to that entry round.
| Company | First backed | Entry stage | Total entry round | Same investor again? |
|---|---|---|---|---|
Donut Lab ↗Espoo | Jul 2025 | Seed | $29M | No later round recorded |
Inven ↗Helsinki | May 2025 | Series A | $13M | No later round recorded |
Aito ↗Vantaa | May 2019 | Seed | $1.4M | No later round recorded |
Aiven ↗Helsinki | May 2019 | Series A | $10M | No later round recorded |
Meeshkan ↗Helsinki | Dec 2018 | Seed | $418K | No later round recorded |
HoxHunt ↗Helsinki | Oct 2018 | Series A | $2.9M | No later round recorded |
Wolt ↗Helsinki | Nov 2015 | Series A | $2.1M | Yes · Apr 2016 |
Detectify ↗Stockholm | Mar 2015 | Seed | $1.7M | No later round recorded |
No companies match these filters. Try a broader sector or stage.
Kept in the 8-company portfolio; excluded from entry-timing calculations.
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