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Explore: Defense Tech · AI Infrastructure · Autonomous Vehicles · Robotics · Seed · Series A · Series B

Harpoon Ventures Fund IV

Harpoon Ventures

VC$155MCo-investsLeads rounds

Fund Size

$155M

Check Size

$1.0M$10.0M

Location

🇺🇸United States

Portfolio

8 companies

Activity

Statusactively investing

Investment Thesis

Invest in defense and critical technology startups building AI, autonomous systems, and next-generation military systems for commercial and government markets.

About Harpoon Ventures Fund IV

Founded in 2018, Harpoon Ventures is a venture capital firm that specializes in early-stage technology companies. With a focus on dual-use technologies that serve both commercial and government markets, Harpoon has built a reputation for supporting founders in navigating complex procurement processes and securing government contracts.

Sectors

Defense TechAI InfrastructureAutonomous VehiclesRoboticsAdvanced Materials

Stages

seedSeries ASeries B

Geographic focus

United States

Notable Investments

Robust Intelligence, Aalo Atomics, MatX, Genesis Molecular AI, Astranis, Northwood, Firestorm Labs, Kodiak, n8n, Electroflow

Verified 13 July 2026 · Sources: company website, Fusion42 review

Frequently asked questions

What does Harpoon Ventures Fund IV invest in?
Harpoon Ventures Fund IV invests in Defense Tech, AI Infrastructure, Autonomous Vehicles, Robotics and Advanced Materials at the seed, series-a and series-b stages.
Which geographies does Harpoon Ventures Fund IV focus on?
Harpoon Ventures Fund IV focuses on United States, and is headquartered in United States.
What is Harpoon Ventures Fund IV's typical check size?
Harpoon Ventures Fund IV typically writes checks of $1M to $10M.