Cubico Sun Ii Limited secures £10.8m for energy production operations

London based electricity producer Cubico Sun Ii Limited has raised £10.8m in a new funding round. The company operates a range of electricity generating stations, utilizing a mix of renewable sources including wind farms, hydroelectric plants, and thermal energy, as well as gas and diesel turbines. This investment brings the estimated post money valuation of the business to £64.9m.

Incorporated in 2023, Cubico Sun Ii Limited focuses on the production and supply of electricity to the grid. The firm manages the infrastructure required for diverse energy generation, aiming to balance traditional power sources with renewable alternatives. According to its latest financial accounts for the year ending 31 December 2024, the company recorded revenue of £1.3m. For the same fiscal period, the business reported a profit of £12k.

The £10.8m round was documented in filings made in May, following an allotment of shares in December 2025. This capital adds to the company balance sheet as it continues its operations from its London headquarters. The company portfolio includes the operation of nuclear power facilities alongside its renewable and turbine based assets.

While the specific lead investors for this round were not disclosed in the filings, the company remains a specialized player in the UK energy production sector. The current valuation of £64.9m reflects the scale of the assets under management and the revenue generated within its first full year of reporting.