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Harpoon Ventures

General contacts

Investor type

Founded

2018

AUM

$450 M

Location

San Diego, California, United States

Investment Ticket

$1-5 m

Investment Stage

Pre-seed Seed Series A

Region of investment

North America

Investor profile last updated: 03 July, 2026

Profile

Harpoon Ventures is an early-stage venture capital firm based in San Diego, California, established in 2018 by former Navy SEAL and Olympic medalist Larsen Jensen. The firm is recognized for its focus on partnering with founders developing mission-critical technologies. Comprising experienced investors adept in government contracting and strategic partnerships, Harpoon Ventures provides hands-on operational support to its portfolio companies. Distinctively, it emphasizes investments that contribute to maintaining Western strategic advantages in technology and defense sectors. Through its Black Flag program, Harpoon mentors and accelerates the market entry of its backed companies, especially those in the national security domain.

Harpoon Ventures invests in sectors like artificial intelligence, deep tech, defense, cybersecurity, and software infrastructure. The firm typically engages in early-stage investments, providing checks influenced by the fund's significant $155 million size, which now contributes to an aggregate AUM of over $450 million across its funds. Noteworthy backers include notable U.S. pensions and endowments. Harpoon is proactive in initiatives aimed at unlocking substantial government contract opportunities exceeding $1 billion for its portfolio.

Harpoon's notable portfolio companies include Aalo Atomics, which is advancing computing efficiencies, and MatX, focusing on high throughput chips, among others like Astranis, Kodiak, n8n, Solugen, and Starcloud, each recognized for their contributions to sectors ranging from space infrastructure to advanced chemical manufacturing.

Industry

Quantum Computing Deeptech HealthTech Cybersecurity Energy Aerospace Business Services (B2B) Education Edtech Electronics Healthcare Services Industrial Media and Entertainment Medical Devices Other Pharmaceuticals Robotics Security Software Telecommunications Transportation Travel AI MedTech Life Sciences Infrastructure Defense Nuclear / Fusion

Harpoon Ventures Funds

Name	Type	Industry	Stage	Region	Size	AUM	Launch date
Fund IV	Venture Capital (VC)	Aerospace AI Deeptech	Pre-seed	North America	$1-5 m	$155 M	July 2026
Harpoon Ventures Fund III	Venture Capital (VC)	Infrastructure Life Sciences MedTech AI Travel Transportation Telecommunications Software Security Robotics Pharmaceuticals Other Medical Devices Media and Entertainment Industrial Healthcare Services Electronics Edtech Education Business Services (B2B) Aerospace Energy Cybersecurity HealthTech Deeptech	Pre-seed Seed Series A	North America	$1-5 m	—	January 2021

Contacts

Name

Title

Social Networks

Larsen Jensen Co-Founder & Managing Partner

Co-Founder & Managing Partner

l•••@•••

Alexa M. Monti Partner

Partner

a•••@•••

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Investment-team contacts for Harpoon Ventures — including verified work emails and LinkedIn profiles — are available to Private Equity List subscribers.
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FAQs about Harpoon Ventures

Is Harpoon Ventures a venture capital or private equity firm?

Harpoon Ventures is a venture capital firm. It backs companies at Pre-seed, Seed and Series A, writing tickets of $1-5 m.

Where is Harpoon Ventures located?

Harpoon Ventures is located in San Diego, California, United States.

When was Harpoon Ventures founded?

Harpoon Ventures was founded in 2018.

What sectors and industries does Harpoon Ventures invest in?

Harpoon Ventures invests in companies and startups in Quantum Computing, Deeptech, HealthTech, Cybersecurity, Energy, Aerospace, Business Services (B2B), Education, Edtech, Electronics, Healthcare Services, Industrial, Media and Entertainment, Medical Devices, Other, Pharmaceuticals, Robotics, Security, Software, Telecommunications, Transportation, Travel, AI, MedTech, Life Sciences, Infrastructure, Defense, Nuclear / Fusion.

What is Harpoon Ventures geographical focus of investments?

Harpoon Ventures invests in companies and startups in North America.

At what stages of companies and startups does Harpoon Ventures typically invest in?

Harpoon Ventures invests in companies and startups at Pre-seed, Seed, Series A.

What is the usual amount of Harpoon Ventures investment?

Harpoon Ventures usually invests $1-5 m on average.

What is the amount of assets of under management (AUM) for Harpoon Ventures?

Harpoon Ventures has around $450m assets under management.

When was Harpoon Ventures last fund created?

Harpoon Ventures last fund was created/launched in 2026-07-01

What are the contacts of Harpoon Ventures?

Harpoon Ventures can be reached through its website harpoon.vc, its LinkedIn page and its X account. Cold-mailing a general inbox rarely reaches a partner, so Private Equity List also lists the investment-team contacts for Harpoon Ventures — names, roles, verified work emails and LinkedIn profiles — available on a Pro plan from $129/month (see pricing). Contacts are sourced from the firm's website and LinkedIn and re-verified on a rolling cycle. Spot a stale contact, or none at all? Report it — we re-run that firm within 48h and get back to you.

Can I access Harpoon Ventures data via API or MCP?

Yes. Every field on this page — profile, funds, investment criteria, portfolio and investment-team contacts — is available programmatically through the Private Equity List REST API and MCP server, so AI assistants such as Claude and ChatGPT can query Harpoon Ventures directly instead of scraping this page. One subscription covers both the web app and machine access — see API & MCP.

When was the Harpoon Ventures profile last updated?

Private Equity List re-verifies investor profiles on a rolling cycle, pulling from the firm's own website and LinkedIn rather than a one-off import. This profile was last updated on 03 July, 2026. Something out of date here? Report it — we re-run that firm within 48h and get back to you.