Harpoon Ventures Fund IV

Harpoon Ventures

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Status

ACTIVE

Global HQ

San Diego, United States

Countries of investment

United States

Investment stages

Pre-Seed
Seed
Series A

Industries

Defense Technology
National Security
Cybersecurity
AI
Aerospace
Frontier Tech
Energy

About
Harpoon Ventures is a San Diego-based venture capital firm focused on backing founders building mission-critical technologies for America. Their focus spans defense, national security, cyber, AI, and aerospace across the United States. The firm supports dual-use founders from pre-seed through Series A stages.

Min check size: $1M
Max check size: $8M
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Investment Thesis

Harpoon Ventures is a pre-seed to Series A stage venture capital firm deploying capital across defense technology, cybersecurity, AI, and frontier tech sectors. They invest in early-stage founders building technologies critical to U.S. power and national resilience. The firm differentiates itself through founder Larsen Jensen's Navy SEAL background and $1B+ in government contracts across 60+ portfolio companies.

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Manager's Experience

Founded by Larsen Jensen (Founder and General Partner), two-time Olympic Medalist and American record holder turned U.S. Navy SEAL. Team includes Managing Partner and CFO with defense operations experience. Portfolio includes Astranis (geostationary communications satellites), Solugen (sustainable chemical manufacturing), Genesis Therapeutics (AI for drug discovery), and Semgrep. Also runs the Black Flag Accelerator for defense tech startups.