Harpoon Ventures

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Early-stage investor focused on national-security technologies, led by a former Navy SEAL, bridging startups to government buyers with ex-operators and acquisition experts for procurement and dual-use commercialization.
Deep-Tech.com VC Ranking
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Stages they invest in
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Avg Check size
$100K - $5M
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Can They Lead?
Yes
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Location
San Diego
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Geographies They Invest in
USA
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Harpoon Ventures
Sectors
Defense
Deeptech / Hardware
Energy
Climate
Cybersecurity
Materials
AI
Chips
Biotech
Robotics
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Avg Check
$100K - $5M
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Leads?
Yes
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Industries
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What Makes them Unique

Harpoon Ventures is led by Larsen Jensen, a former Navy SEAL and Olympic swimmer, who brings a "warrior ethos" to investing in what the firm calls the "Freedom Stack"—foundational technologies like AI, autonomy, cyber, space, and energy that are critical to American national security.

The firm specializes as a bridge between early-stage startups and complex government buyers, with a team of former national security operators and acquisition experts who help founders navigate procurement and dual-use commercialization beyond typical venture capital support.

Video Interview

On VCs being human and making mistakes

"We're going to pick some good ones. We're going to pick some ones that don't go well and then we're going to miss some great ones too. And so I don't think that in every case should mean that the founder takes it back like, I have a terrible idea. This isn't going to work. That's just the way it goes as a VC."

Riley Loftus | Harpoon Ventures

On what he's really looking for in pitch decks

"I'm looking for clarity around what problem you are solving. I can't tell you the amount of decks where you get kind of 10 to 12 pages in and just like, I don't even know what the product is. I now understand there's 10 problems in this industry, but I don't know what you're solving or how you're solving it."

Riley Loftus | Harpoon Ventures

On how passion shows up in an intro call

"I think the answer that really excites me is if we got an acquisition offer in five years, I'd say no. I want this thing to go public. I want this to be a long standing company. This is what I'm going to do for the rest of my life."

Riley Loftus | Harpoon Ventures

On the danger of inflated early valuations

"If you're raising at $65M out the gate, are you going to be able to raise at $150M in a year from now when you need it? So I think that's probably one of the biggest traps to fall into."

Riley Loftus | Harpoon Ventures

On the importance of adaptability

"We truly, we're backing the founders and not necessarily always just the idea. We're backing that you will be able to do something, you'll be able to get something done... And that something might be very different in the future."

Riley Loftus | Harpoon Ventures

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