Vensum Power Raises €9M Series A for AI Data Centre Power Tech

Finnish deeptech company Vensum Power has raised €9 million in a Series A round co-led by existing investor Lifeline Ventures and new investors Larsen & Toubro Group and Eviny Ventures, with participation from Grid.vc and Harjavalta Ventures. The round lifts the Espoo-based firm's total funding to €15.2 million. The money funds a shift from technology development to industrial-scale production, with first products due for mass production at partner factories in 2027.

Founded in 2018 and employing around 20 people, Vensum Power develops software-defined power conversion technology designed to minimise energy losses during electricity conversion. Its target applications include EV charging, energy storage, DC microgrids and AI data centres. The €9 million cheque works out at roughly €450,000 per employee — a signal of how capital-intensive the jump from prototype to factory can be.

What does the CEO promise?

CEO Peter Nisula frames the round as a turning point. "The funding round propels us from developing technology to delivering it at industrial scale and bringing the same proven solution to AI data centers, where access to power has become the main bottleneck," Nisula said.

He added: "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."

The promise rests on a claim the company does not quantify: no efficiency percentages, loss figures or validated performance data appear in the announcement. What is concrete is the timeline — mass production of first products for EV charging, energy storage and DC microgrids is planned for 2027 through manufacturing partners, a full four years before which the company has operated as a developer rather than a producer.

Why are investors focused on data centres?

According to the company, growing electricity demand and limited grid capacity are creating challenges for data centre operators running AI workloads. Vensum says improving power delivery efficiency has become an important part of addressing those infrastructure constraints.

Prashant Chiranjive Jain, Managing Director of L&T Vyoma and Head of L&T Electronic Products & Systems, both business verticals of Larsen & Toubro, put the investment in systemic terms. "Data centers are competing with every other sector for the same grid capacity, and Vensum Power tackles one of the most overlooked inefficiencies in the system: converting power into a form that equipment can use optimally," Jain said.

He continued: "The global energy transition and the growth of digital infrastructure both depend on getting this right, at scale. We are proud to support Vensum Power as it scales up across global markets and, in doing so, we help accelerate the energy transition."

The investor roster is not accidental. Larsen & Toubro is an engineering and technology group; Eviny operates in renewable energy and energy infrastructure. Both bring industrial expertise directly relevant to Vensum's target markets.

What is the efficiency argument?

Andreas Engelsen, CEO of Eviny Ventures, grounded the case in operational experience. "Through our own operations, we see every day how much value is lost when power is converted on its way to where it is needed," Engelsen said. "Vensum Power cuts those losses in areas we know well, such as EV charging, energy production, and energy storage."

Engelsen added that Eviny would support the team with "Eviny's experience from more than a century in renewable energy."

According to Nisula, the software-defined approach maintains high conversion efficiency even when electrical loads change rapidly, helping ensure more of the electricity supplied to data centres reaches equipment in usable form. Again, the announcement offers no measured figures to test that claim against conventional converter efficiency.

What happens next?

Vensum Power intends to use the funding to scale production and extend its technology into new applications, including AI infrastructure. The data centre adaptation comes after the 2027 launch products, not alongside them — a sequencing detail that matters for anyone tracking the AI angle. In plain terms: €9 million buys Vensum a factory ramp first; the data centre market comes later.