Planeteer Capital — 2025 Investments
3 investments dated 2025 · listed companies and verified rows first · show all
Material Difference builds an explainable AI platform designed to help locate ore-bodies for mining operations.
AI & Machine LearningEnergySan Francisco, US
Gabriel Yoong(CEO)inLuke Cullen(CTO)in
Board seatSophie Purdom· per SEC Form D · $3.7M raise · filed Dec 2025
Co-investorsEntrepreneur FirstMythos Ventures Management, LlcTranspose Platform Management
Commonwealth Fusion Systems develops commercial fusion power plants using high-temperature superconducting magnet technology to provide grid-scale energy.
CleantechClimate TechDeep TechEnergyCambridge, US
Brandon Sorbom(Founder)inRobert Mumgaard(Executive Officer, Director)inDaniel Brunner(Executive Officer)inBob Mumgaard(Founder)inDan Brunner(Founder)Dennis Whyte(Founder)
Co-investorsAdvection Growth CapitalArmada Investment AGBay Bridge Ventures ClimateBeni Venture CapitalBrainstorm VenturesBreakthrough Energy Ventures+45 more
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
Terraton
Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.










