Hyperscale Power is building solid state transformers that operate at much higher switching frequencies than existing models, allowing the devices to be significantly smaller than traditional iron-core transformers and even current solid state competitors. The technology is aimed at data centers, where soaring rack power densities (Nvidia is planning 1 MW racks) are making bulkier legacy transformers a bottleneck. By stepping incoming power up to tens of kilohertz before conversion and then returning it to the required frequency, Hyperscale’s design minimizes component count and footprint while targeting efficiencies similar to the 99.1% unit CEO Daniel Rothmund built during his PhD at ETH Zürich. The company sees rapid data-center expansion and increasing grid complexity from batteries and renewables as strong tailwinds for adoption. Co-founded by Rothmund and Sami Pettersson, Hyperscale intends to use its new capital to build a working prototype and prove its size and performance claims. Financially, the startup has only disclosed a recent €5 million seed round and has not yet shared revenue or customer metrics.

Total raised

$6M

Funding rounds

1

Latest round

Seed

Latest activity

Mar 2026