Finnish power-electronics startup Vensum Power has raised €9 million in a Series A round co-led by Larsen & Toubro, Lifeline Ventures and Norwegian energy company Eviny’s investment arm. The financing will support the move from product development into manufacturing, with commercial revenue expected in 2027.
Vensum develops software-controlled power converters. Power converters manage the flow and characteristics of electricity between sources, storage systems, grids and end equipment. Their efficiency, controllability and reliability influence the performance of renewable-energy, industrial and electrification infrastructure.
The company’s technology uses software to control conversion behaviour, allowing equipment to be adapted across applications and operating conditions. The capital will fund production capacity, engineering and the transition towards volume manufacturing.
L&T’s participation gives the transaction a direct Indian industrial dimension. The engineering group operates across power transmission and distribution, heavy engineering, infrastructure, data centres, defence and industrial technology. An investment in advanced power-conversion technology provides exposure to components relevant to electrification and energy-management systems.
Vensum’s commercial challenge is to convert technical performance into repeatable manufacturing and qualified customer deployments. Power-electronics products typically need extensive validation because their failure can interrupt critical equipment or grid-connected infrastructure. Production quality, component sourcing and certification will therefore be as important as the underlying control software.
The financing also comes as electricity demand is being reshaped by renewable generation, storage, electric mobility and data-centre expansion. Each category requires hardware that can efficiently convert, regulate and route power. Software-defined control can add flexibility, but the equipment must still meet demanding thermal, safety and reliability requirements.
The company has not disclosed a valuation or detailed ownership percentages from the round. It has stated that proceeds will be used to begin mass production and reach revenue during 2027. The presence of industrial and energy investors can provide commercial relationships in addition to capital, although no specific customer contract has been announced with the financing.
The round was reported on 6 November and extends L&T’s technology-investment activity into European power electronics.
