Harpoon Ventures

vcUSApre-seed seed series-a

Harpoon Ventures is a US-based venture capital firm founded in 2018 by Larsen Jensen, a two-time Olympic medalist and former Navy SEAL. The firm invests at the intersection of technology and national security, backing early-stage founders building for America and its allies. Their portfolio spans sectors such as AI, defense, energy, and space, with notable companies including high-throughput chips for LLMs, AI-driven drug discovery, autonomous flight, and nuclear plants for datacenters. Harpoon Ventures raised $155 million for Fund IV, with backing from a16z and Lightspeed, and has helped portfolio companies secure over $1 billion in U.S. government contracts.

Defense Deeptech / Hardware Energy Climate Cybersecurity Materials

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Partners

• Larsen Jensen Founder & Managing Partner