Vensum Power, a Finnish company that makes software-controlled power converters, raised €9m (about $10.1m) in a Series A round announced on 6 November 2026.
Existing backer Lifeline Ventures co-led the round with two new investors, Larsen & Toubro Group and Eviny Ventures. Grid.vc and Harjavalta Ventures, earlier investors, also took part, according to BeBeez and Tech Funding News. No valuation was disclosed.
The round lifts Vensum's total funding to €15.2m (about $17m). The company said the money will move it from developing its technology to manufacturing it, with mass production planned for 2027.
“The question in data centers is no longer only how powerful the chips are”Peter Nisula, CEO, Vensum Power
What Vensum Power does
Every time electricity is converted from one form to another, for example to charge a car battery or feed a server rack, some of it is lost as heat. Vensum builds converters controlled by software, which it says keep losses low even when the load changes quickly, rather than only at a converter's best operating point.
Chief operating officer Tero Lehtonen told Tech Funding News that headline efficiency figures usually describe peak performance, and that Vensum's aim is to improve the worst case. In a 2024 interview with Aalto University cited by the same outlet, chief executive Peter Nisula estimated losses of 3% to 5% for Vensum's technology against 7% to 10% for conventional converters. The company describes its conversion as near-lossless.
The company was founded in 2018 by Jyrki Penttonen and Mika Marjalaakso, who both studied at what is now Aalto University. It has about 20 employees, and its customers are converter manufacturers, all based outside Finland, according to Tech Funding News.
From EV chargers to data centres
The first products are aimed at EV charging, energy storage and DC microgrids, with mass production at partner factories planned for 2027, according to BeBeez. The company expects revenue from that year.
Data centres are the next target. "The question in data centers is no longer only how powerful the chips are," Nisula said, arguing that getting power to the chips efficiently now matters as much, because access to electricity has become the main limit on new capacity. Tech Funding News reported that Vensum is looking at Nvidia's 800V data centre power design.
Tech Funding News also noted open questions: whether Vensum will publish measured losses at customers' own operating points before revenue starts, and whether its new industrial investors will also become customers.
Who invested
Both new lead investors are the venture arms of large industrial groups. Prashant Chiranjive Jain, managing director of L&T Vyoma and head of L&T Electronic Products & Systems, said data centres compete with every other sector for limited grid capacity and that Vensum tackles an often overlooked loss in turning power into a usable form.
Andreas Engelsen, chief executive of Eviny Ventures, said the Norwegian renewable energy group sees in its own operations how much value is lost in conversion, and pointed to EV charging, energy production and storage as uses.
Lifeline Ventures led Vensum's €3.8m seed round in May 2023, which also included Grid.vc, Harjavalta and Business Finland, according to Tech Funding News.
Company website: vensum.com