Finnish deep-tech company Vensum Power has raised €9 million in a Series A round to move its software-defined power-conversion technology toward industrial production. The financing was co-led by Lifeline Ventures, Larsen & Toubro Group and Eviny Ventures, with continued participation from existing investors. The company says the new round brings total funding to €15.2 million and will support mass production of products for electric-vehicle charging, energy storage and DC microgrids, followed by expansion into AI data-centre applications.
Vensum is addressing a problem that sits between the electricity grid and the equipment that consumes power. Electricity is converted at multiple points as it moves from supply infrastructure to charging systems, batteries and computing equipment. Each conversion can lose energy as heat. In a data centre, those losses matter twice: less electricity reaches the IT load, and the heat generated by conversion equipment adds to the facility’s cooling burden. Improving conversion efficiency can So help operators make better use of constrained electrical capacity.
The company describes its platform as software-defined power conversion. Its stated approach uses digital control to maintain efficient operation when electrical loads change, rather than optimising for a narrow operating point. AI data centres are an interesting target because server demand can fluctuate quickly as workloads start, stop and move between systems. Power equipment must respond while maintaining stable output. Vensum says its technology is designed for these changing conditions, although independent measurements in production data centres will be needed to establish the size of any efficiency advantage.
The funding prioritises industrial production before data-centre expansion
The immediate commercial plan is more measured than a claim of instant data-centre deployment. The funding announcement says the company intends to move products for EV charging, energy storage and DC microgrids into mass production in 2027 through partner factories. AI data centres are described as a further expansion opportunity. This sequencing matters: the company must first prove that the hardware can be manufactured reliably, meet certification requirements and operate in customer environments before the data-centre opportunity can become recurring revenue.
The investor group gives the round an industrial dimension. Larsen & Toubro operates across engineering and technology, while Eviny has experience in renewable energy and infrastructure. Those relationships may help Vensum understand deployment requirements beyond laboratory performance, including integration, service, supply-chain management and access to customers. Strategic investors can be useful when a hardware startup needs manufacturing partners and routes into large infrastructure projects. Their participation does not guarantee commercial adoption, but it can provide capabilities that financial capital alone may not supply.
The market opportunity is connected to the rapid growth of AI computing, but the company will face established suppliers in power electronics and data-centre infrastructure. Buyers will compare efficiency across the full system, not just one converter. They will also examine reliability, thermal behaviour, maintainability, safety certification and the cost of retrofitting existing facilities. A small efficiency improvement can be valuable at large scale, but only if it survives real operating conditions and does not create additional complexity for facility engineers.
Field measurements will determine efficiency and customer adoption
Vensum’s claims about high-efficiency conversion should be treated as company positioning until independently validated under comparable test conditions. Efficiency depends on input voltage, output voltage, load profile, temperature and the complete system design. Customers will need measured performance curves and long-duration operating data, not only peak figures. They will also want to know how the platform behaves during faults, how quickly components can be replaced and whether the software control layer introduces new cybersecurity or maintenance requirements.
The funding round reflects a broader European opportunity in the infrastructure supporting AI, electrification and grid flexibility. Europe’s data-centre ambitions depend not only on processors and buildings but also on access to power and efficient conversion equipment. Vensum is attempting to commercialise a component-level solution to that constraint. The next milestones are manufacturing readiness, customer pilots and measured field performance. If the technology provides its claimed efficiency across demanding workloads, it could become relevant well beyond the initial EV and storage markets.