In the world of venture capital, Harpoon Ventures stands out as a unique player. Based in San Diego, this defense-tech firm has recently closed a $155 million fundraising round, attracting attention for its distinctive approach and impressive team. Unlike typical Silicon Valley firms, Harpoon Ventures is not for the nerds it’s for those with a passion for defense technology and a commitment to building for America.
The firm’s team is as remarkable as its investment strategy. With half of its 10 employees being former Navy SEALs, including founder and former Olympic swimmer Larsen Jensen Harpoon Ventures brings a wealth of real-world experience to the table. Investor Clint Brown highlights the unique backgrounds of the team, including Andrew Couillard who is fluent in Mandarin and has experience in explosive ordnance disposal (EOD).
The Harpoon Difference: A Focus on Defense Tech
Harpoon Ventures is not your typical venture capital firm. The team prides itself on a lifestyle far removed from the stereotypical Silicon Valley image. Instead of late-night coding sessions and hoodie-wearing entrepreneurs, you’ll find a group that enjoys surfing, working out, and spending time with their families. We don’t do the ridiculous Silicon Valley lifestyle says Brown. We’re going to be cool and crush it.
The firm’s investment portfolio reflects its commitment to defense technology. Harpoon Ventures focuses on companies that are building autonomous submarines, drones in a box, satellite maneuvering systems, post-quantum cryptography, and technologies for locating critical minerals using seismic data. The firm’s mantra is simple: building for America. This focus on defense tech sets Harpoon Ventures apart from other VC firms and creates a unique network of companies and investors.
Harpoon’s Accelerator: Black Flag
In April of 2026, Harpoon Ventures launched its own accelerator program called Black Flag. Spearheaded by Couillard, this program provides early-stage defense startups with investments from Harpoon, as well as potentially from Shield Capital and the CIA-backed venture firm In-Q-Tel (IQT). The program also connects startups to a network that extends from Peter Thiel’s Palantir and Amodei’s Anthropic to the Pentagon. These nascent defense startups are raising multiples from 17 times to 50 times revenue, according to Fortune.
Harpoon Ventures’ unique approach to investing has caught the attention of the defense tech industry. According to PitchBook, VCs deployed $19.8 billion into defense tech across 262 deals in the first quarter of 2026, compared to $5.7 billion in the first quarter of 2026. This surge in investment highlights the growing importance of defense technology and the role that firms like Harpoon Ventures play in driving innovation.
Harpoon’s Political Connections
While the rest of the team enjoys the San Diego lifestyle, Brown spends much of his time on Capitol Hill. Before joining Harpoon Ventures, Brown worked at the Heritage Foundation and later for Utah senator Mike Lee. His proximity to the political world is essential in an industry where the federal government is the key customer. When you’re investing in critical technology, there’s not a pure private market for it. As much as I’d love to buy a drone interceptor or a nuclear reactor, I can’t. The market isn’t just economic—it’s political explains Brown.
Brown’s political connections have made him a visible figure in defense and national security circles. Earlier this year, he publicly defended FBI director Kash Patel after allegations about Patel’s drinking were published. Just days ago, after Defense Secretary Pete Hegseth announced the Pentagon would cover testosterone therapy for eligible service members, Harpoon took to X looking for founders building related technologies. Who’s got a pitch for us on an upgrade to the injectable Testosterone protocol? LFG!
Harpoon Ventures also works closely with Palantir, IQT, and Andreessen Horowitz, where Jensen got his start. Brown proudly claims responsibility for introducing Marc Andreessen to the term retardmaxxing an intentionally provocative piece of internet slang that Andreessen later repeated on a podcast, setting off predictable backlash online.
