Vensum Power Raises €9 Million to Scale Software-Defined Converters for Data Centers and Microgrids

Espoo, Finland-based power electronics startup Vensum Power has raised €9 million in Series A funding to advance software-defined power conversion hardware designed to minimize electricity losses across industrial electrical systems, according to a report from Tech Startups (https://techstartups.com/2026/11/06/finnish-startup-vensum-power-raises-e9m-to-cut-energy-losses-targets-ai-data-centers/).

The investment round was co-led by Lifeline Ventures, Larsen & Toubro Group, and Eviny Ventures, with follow-on participation from existing backers Grid.vc and Harjavalta Ventures. The round brings the company's total equity funding to €15.2 million.

Founded in 2018, Vensum develops power conversion units engineered to maintain efficiency across fluctuating electrical loads. Standard electrical distribution setups require successive conversion steps between alternating current and direct current as well as repeated voltage adjustments, shedding electricity as waste heat at each step. Vensum claims its digital control architecture dampens those cumulative transmission losses under shifting operating conditions.

Power availability has become a primary bottleneck for artificial intelligence compute infrastructure, where dense hardware racks run around the clock at high wattage. While much of the industry's capital expenditure has targeted new generation assets and transmission grid expansions, improving efficiency along the final power-delivery chain offers an immediate way to extract more compute throughput from existing grid hookups.

"The question in data centers is no longer only how powerful the chips are, but how efficiently the used electricity actually reaches them. Thanks to the software-defined approach, our converters operate consistently at extremely high efficiency even with rapidly changing loads," Vensum Power chief executive Peter Nisula said in a statement accompanying the announcement.

The company, which employs approximately 20 people, plans to begin contract mass manufacturing through partners in 2027. Its near-term commercial rollouts focus on direct-current microgrids, electric vehicle charging hubs, and stationary battery energy storage systems, with hyperscale data centers positioned as a subsequent expansion target.

Vensum faces significant qualification and technical hurdles before breaking into production data centers. Power conversion hardware in mission-critical facilities must clear strict uptime and reliability standards, and the startup has not yet published third-party verification benchmarks, named enterprise data center deployment partners, or disclosed its post-round valuation.