Harpoon Ventures closes oversubscribed $155M Fund IV
What's the deal? Harpoon VenturesDealroom has a profile for this one. Try Dealroom → has closed an oversubscribed $155 million Fund IV to back founders building critical technologies for America and its allies.
The close pushes Harpoon's assets under management past $450 million.
Founded in 2018, the firm targets companies working across defence, energy, manufacturing, AI, cybersecurity, and biotechnology — sectors where it sees national power and technology converging.
Why now? Harpoon argues the past decade ended the illusion that technology could be separated from national power.
It points to AI turning compute into strategic infrastructure, the war in Ukraine reshaping the battlefield with drones and autonomy, and supply chain shocks exposing offshore industrial capacity.
The firm says government has shifted its posture, too. Public capital and procurement are moving toward frontier technology companies with urgency not seen in decades.
What could go wrong? Government markets are enormous but hard to crack.
Harpoon concedes the path from breakthrough technology to government adoption remains difficult, fragmented, and opaque — for founders and investors alike.
The signal: Backing defence and government-adjacent startups was once a contrarian bet that much of Silicon Valley avoided.
Harpoon's oversubscribed raise shows that thesis has gone mainstream, as capital flows back toward the bridge between entrepreneurs and the state that once produced semiconductors, GPS, and the internet.
Read more: Harpoon Ventures
