Harpoon is a venture capital firm. Based in San Diego, California, United States. Known portfolio companies include Starcloud, Aalo Atomics, Vector, Encord, MatX and Material, 10 companies in all.
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Investment focus
- Focus
- AI InfrastructureAerospaceCloud InfrastructureCommunications InfrastructureComputer VisionCreator EconomyCybersecurityDataData EngineeringDefenseDeveloper ToolsMachine LearningNational SecurityNatural Language Processing (NLP)PrivacyRoboticsSEOSearch EnginesSecuritySoftware EngineeringSpaceTechTelecommunications
Who to pitch at Harpoon
Harpoon portfolio companies (10)
- Starcloud
- Aalo Atomics
- Vector
- Encord
- MatX
- Material
- EraDrive
- Ulysses Ecosystem Engineering
- Valinor Discovery
- Electroflow Technologies
Co-investors
Funds that share portfolio companies with Harpoon.
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About Harpoon
The firm's listing covers sectors AI, Climate, Hardware and SaaS, and focus areas AI Infrastructure, Aerospace, Cloud Infrastructure and Communications Infrastructure; known deals cluster at Growth, Seed and Series A.
The team counts 6 people in our database. Larsen Jensen (Founder), Oskar Sadowski (Chief Executive Officer) and Austin Hays (Partner) are shown as the contacts to pitch.
Harpoon shares portfolio companies with 20 other investment firms, among them Fifty Years, Adjacent and Macquarie Asset Management.
Frequently asked questions
What is Harpoon?
Harpoon is a venture capital firm based in San Diego, California, United States, with a known portfolio of 10 companies. The portfolio comes from public investment records rather than from the firm, so deals that never surfaced publicly are not in it.
What does Harpoon invest in?
Listed sectors include AI, Climate, Hardware and SaaS; listed focus areas include AI Infrastructure, Aerospace, Cloud Infrastructure and Communications Infrastructure. Those tags come from the portfolio attached to the firm, so they describe what has been backed rather than a stated mandate for what comes next.
What stage does Harpoon invest at?
The known deals of Harpoon include Growth, Seed and Series A rounds. Check that against your own round before reaching out: stage mismatch is the most common reason a well matched sector still goes nowhere.
Who should I pitch at Harpoon?
3 of the 6 people on file at Harpoon are listed as contacts for the firm. All 6 have their own profile page.
How do I contact Harpoon?
Any email address on file for the firm is masked on this page and readable inside RaiseHunt after you create an account. The 6 people attached to the firm have their own pages, each showing whether an address is on file for them.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal