Exeger
Startup · Stockholm, Sweden
Exeger is a Stockholm-based deep-tech company that manufactures Powerfoyle, a patented, silicon-free dye-sensitised solar-cell material that converts both indoor and outdoor light into electricity. Founded in 2008 by entrepreneur Giovanni Fili and scientist Dr Henrik Lindström — joint winners of the European Inventor Award in 2021 — the company spent a decade developing and patenting the technology before scaling commercial production at two factories in Kista, Stockholm. Powerfoyle is integrated as a thin, flexible film directly into product surfaces, removing the need for charging cables or disposable batteries. Shipping products span headphones and earbuds (Urbanista, adidas), cycling helmets (POC), professional hearing protection (3M Peltor), digital shelf labels (VusionGroup), remote controls (Philips, Hama) and IoT sensors. Exeger has raised over €169M from backers including SoftBank, Swedish pension fund AMF, the European Investment Bank (€35M InvestEU loan) and Fortum, and in late 2025 secured a SEK 130M grant from the Swedish Energy Agency and was selected for the NATO DIANA defence accelerator.
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