Certain Energy

Long-duration energy storage, London

Manganese flow batteries for long-duration grid energy storage. It raised £10m in its Series A in September 2026. We can't read its job board yet.

Backed by British Business Bank, Centrica, Ceres Power and Temasek Trust (Catalytic Capital). Total raised £10m (Series A).

Not found on the Home Office register of licensed visa sponsors.

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