About Tesi
Tesi is a private equity firm founded in 1995. It is primarily based in Helsinki, Finland. As of Apr 2026, Tesi is an active investor with a portfolio of 304 companies, comprising 304 funding rounds and 11 acquisitions. In the last 12 months, it has participated in 13 funding rounds. The firm primarily invests in companies based in Finland and United States. Its portfolio is spread across a wide range of sectors from Enterprise Applications to High Tech. Its latest investment was a $***** Series A round in Kelluu on Apr 14, 2026 which also saw participation from NIF, Keen Venture Partners and other investors.
A lot of funds co-invest with Tesi, with names like Emerald Technology Ventures sharing a substantial percentage of its portfolio.
Tesi has a team of 51 people, including 2 partners.
Key Metrics
Tesi's Portfolio
Tesi has a portfolio of 304 companies. They have invested in a total of 304 companies. Their most recent investment was in Kelluu (Series A round) on Apr 14, 2026. Here are the most recent investments by Tesi:Date | Company | Round | Amount | Co-Investors |
|---|---|---|---|---|
Apr 14, 2026 | Series A | 8257 | ||
Feb 06, 2026 | Series A | 3981 | ||
Feb 05, 2026 | Series A | 7131 | ||
Jan 12, 2026 | Seed | 2474 |
Tesi has acquired 11 companies. Their most recent acquisition was of Uusioaines on Nov 06, 2018. Here are the most recent acquisitions by Tesi:
Acquisition Date | Company | Short Description | Total Funding | Founded Year |
|---|---|---|---|---|
Nov 06, 2018 | Manufacturer of bottles, jars and window glasses | - | 1995 | |
Apr 24, 2018 | Chain of indoor activities focused entertainment parks | - | 2012 | |
Dec 19, 2017 | Building water pumps and heating network renovation provider. | - | 2006 | |
Dec 29, 2016 | Business accommodation booking platform | - | 2001 |
Here is the portfolio snapshot of Tesi:
Investments by Year
The maximum number of investments were made in 2021
Acquisitions by Year
The maximum number of acquisitions were made in 2018
Portfolio by Location
Companies are primarily in Finland and United States
Portfolio by Sector
Companies are primarily in Enterprise Applications
Team profile of Tesi
Tesi has a team of 51 members including 2 Partners and 6 Principals located in Finland. Tesi's team does not sit on the board of any company as of now.Here is a list of top team members in Tesi:
Name | Designation | Location | Board Memberships | Contact Details |
|---|---|---|---|---|
Partner | Helsinki | - | ||
Partner | Helsinki | - | ||
Principal | Helsinki | - | ||
Principal | Helsinki | - | ||
Principal | Helsinki | - | ||
Principal | - | - | ||
Principal | Finland | - | ||
Principal | Finland | - | ||
Advisor | Helsinki | - | - | |
Associate | Helsinki | - | ||
Associate | Helsinki | - |
Co-investors of Tesi
Over the past 31 years, 144 investors have co-invested in Tesi's portfolio companies.
- Top Co-investors of Tesi: 144 investors entered a company along with Tesi. These include investors like Emerald Technology Ventures (3 companies).
Tesi News
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Kelluu Raises €15M To Build Europe’s Persistent Aerial Intelligence LayerStartup Rise EU•Apr 14, 2026•Tesi, NIF, Kelluu, Keen Venture Partners and 1 other
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Finland’s ICEYE raises €150M at €2.4B valuation to scale all‑weather spy satellitesTech Funding News•Feb 12, 2026•ICEYE, Tesi, RIO ASI, Bpifrance and 5 others
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Heartcore Capital leads Series A funding round of Capalo AIChambers and Partners•Feb 10, 2026•Capalo AI, Tesi, Inventure, Innovestor and 2 others
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Vexlum Raises €10 Million to Scale Semiconductor and Laser ManufacturingRobotics and Automation News•Feb 08, 2026•Vexlum, European Innovation Council, Nordea, Tesi and 2 others
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Finnish biotech Avenue Biosciences raises $5.7M to scale protein engineering technologyAIN.UA•Jan 12, 2026•Avenue Biosciences, Tesi, Balnord, University of Helsinki and 4 others
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Satellite Startup ICEYE Raises $2.8 Billion, Boosted by European DefenseInsurance Journal•Dec 08, 2025•Rheinmetall, InPost, ICEYE, General Catalyst and 11 others
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Nokia & NestAI Partner to Advance AI; NestAI Secures €100M InvestmentGlobeNewswire•Nov 20, 2025•Nokia, Tesi, AMD, Senetas
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Finland’s DataCrunch secures €55M to challenge US hyperscalers and boost Europe’s AI leadershipEU-Startups•Sep 08, 2025•Tesi, DataCrunch, Byfounders, Skaala and 19 others
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Quantum computing startup IQM raises $1.6 billion with interested investorsFusoes & Aquisicoes•Sep 04, 2025•IQM, IBM, Ten Eleven Ventures, Castellodirivoli and 12 others
