Harpoon Ventures — 2025 Investments
3 investments dated 2025 · listed companies and verified rows first · show all
Draper, US
Andrew Yakulis(Executive Officer, Director)
BoardLarson Jensen(Director)Ben Lambert(Director)George Matus(Director)
Board seatLarsen Jensen· per SEC Form D · $13M raise · filed Oct 2025
eFlow extracts lithium from dilute brines in North America using direct lithium extraction technology, serving the clean energy and electric vehicle supply chain.
CleantechEnergyNew MaterialsSan Bruno, US
Eric McShane(CEO and co-founder)Evan Gardner(CTO and co-founder)
Co-investorsBlack FlagFifty YearsUnion Square Ventures (USV)Voyager Partners
Orbital Ops develops propulsion systems and related aerospace hardware for airborne vehicles.
Advanced ManufacturingDeep TechDefense TechHardwareSpace TechLos Angeles, US
Ben Schleuniger(Founder)inRoss Doherty(Co-Founder & COO)inHunter
Co-investorsBlack FlagGoAhead VenturesOlive Tree CapitalTRAC (Third Round Analytics Capital)Y CombinatorInitialized Capital+2 more
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.