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Cactos builds and operates battery energy storage systems bundled with software, financing, and energy-market services for European businesses.
Raised $31M across disclosed rounds.[10]
Growth round closed June 2026, led by Union Square Ventures.[1][2][3][8]
post-money valuation is not publicly disclosed.
Named investors include Union Square Ventures, Tesi, Hyundai Motor Group, Silence VC, FJ Labs, JTel Oy, Rando Ventures Oy, Superhero Capital, OP Financial Group, Finnish Climate Fund.[1][4][5][6][9]
Oskari Jaakkola, CEO[6][7]
John Graham, Co-Founder, International Business Development & Sales[6][7]
Juuso Mäyränen, Co-Founder, Software Engineer[6][7]
Matti Aschan, Chief Sales Officer[7]
Mikael Lindqvist, General Counsel[7]
Matti Innilä, Head of Engineering & Product Management, Physical BESS products[7]
Aug 2026 · nordic9.com
reported
Aug 2026 · nordic9.com
reported
Cactos builds and operates battery energy storage systems bundled with software, financing, and energy-market services for European businesses.
Ask for one referenceable production customer.
Not a recommendation. The first thing this ledger cannot answer.
Tesla Energy · tesla.com/energy · Named in independent analysis as a direct competitor in battery storage, competing for the same commercial and grid-scale storage buyers with hardware plus software.[3]
B2U Storage Solutions · b2ustorage.com · Named alongside Cactos in a second-life EV battery market forecast report, competing for the same repurposed-battery storage buyer.[7]
BeePlanet Factory · beeplanetfactory.com · Named alongside Cactos in a second-life EV battery market forecast report, competing for the same repurposed-battery storage buyer.[7]
The customer proof is company-sourced only. No independent source in this ledger confirms it.[7]
Ask for one referenceable production customer.
Not a recommendation. The first thing this ledger cannot answer.
Filled in the side panel for invited readers. This card carries sourced facts only.
Aug 2026 · en.ain.ua
reported
Aug 2026 · dealroom.co
verified
Aug 2026
vendor
Aug 2026 · cbinsights.com
verified