Investors / United States / Harpoon Ventures
Harpoon Ventures
Venture capital · San Diego, CA, United States · North America
Harpoon Ventures is a venture capital firm founded in 2018 that invests in founders building across AI, deep tech, software infrastructure, and cybersecurity. It works with its portfolio companies to secure U.S. government contracts, from non-dilutive grants to programs of record.
Invests inAI & Machine Learning
In its own wordsaideep techsoftware infrastructurecybersecuritygovernment contractsdefense
Your fit with Harpoon Ventures
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsHarpoon Ventures lists 56 checked portfolio companies on its own site and is named in 13 funding rounds. Its most frequent entry is Seed, 39% of the companies with a known first round. Its largest themes are AI & Machine Learning (41%), Cybersecurity (13%) and Industrial & Manufacturing (10%). 88% of its companies are based in United States. It invests most often alongside Andreessen Horowitz, Sequoia Capital and Y Combinator.
Counts come from funding rounds that name Harpoon Ventures, complete from mid-2025: earlier rounds appear only when they were reported later. Round amounts and full round histories are on Fundup AI.
Round figures show recent activity, not Harpoon Ventures' whole history. Rounds on record name 13 companies; its own site lists 56. Funding rounds are complete from mid-2025, so counts and the yearly trend undercount a firm that invested before then. The portfolio, themes and places come from its own site and are not affected.
Entry stage
share of companies by the stage of its first roundHarpoon Ventures does not state its stages on its site, so only what it does is shown.
Show as a table
| Value | |
|---|---|
| Pre-seed | 0% |
| Seed | 39% |
| Series A | 31% |
| Series B | 15% |
| Growth | 15% |
Activity by year
rounds it joined, last 10 yearsShow as a table
| Total | Rounds it led | |
|---|---|---|
| '17 | 0 | 0 |
| '18 | 0 | 0 |
| '19 | 0 | 0 |
| '20 | 0 | 0 |
| '21 | 0 | 0 |
| '22 | 0 | 0 |
| '23 | 1 | 0 |
| '24 | 1 | 0 |
| '25 | 4 | 0 |
| '26 | 7 | 0 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 86th | 56 companies |
| Recent activity | 93th | 8 rounds in 12 months |
| Early stage | 65th | 39% of entries at pre-seed or seed |
| Evidence | 90th | 18% of companies confirmed by a round |
| Sector focus | 75th | 41% in its largest sector |
| Reach | 78th | 5 countries |
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| AI & Machine Learning | 41% | 18% |
| Cybersecurity | 13% | 4% |
| Industrial & Manufacturing | 10% | 7% |
| Healthcare & Biotech | 9% | 15% |
| Space & Defense | 8% | 3% |
| Enterprise Software | 7% | 8% |
| Education | 4% | 7% |
| Fintech | 2% | 12% |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Andreessen Horowitz | 9 |
| Sequoia Capital | 7 |
| Y Combinator | 7 |
| Felicis | 5 |
| IQT | 5 |
| Soma Capital | 5 |
| Cantos | 4 |
| Industrious Ventures | 4 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers5598%
- No longer answers00%
- Points to another company12%
- Parked or sold domain00%
A site that stops answering three checks in a row is counted as no longer answering; that is not proof of closure. A site that points to another company is often an acquisition.
Co-investor network
who it backs companies with, and who they back togetherAll co-investors or Compare portfolios with Andreessen Horowitz
Compare Harpoon Ventures head to head
portfolio size, rounds, entry stages, themes and the companies both backThree or more firms at once: portfolio overlap.
Funds
from public registers and its siteRecent portfolio activity
when companies last raised with Harpoon Ventures| Date | Company | Stage |
|---|---|---|
| 3 Nov 2026 | Seed | |
| 6 Aug 2026 | Seed | |
| 14 Jul 2026 | Series A | |
| 9 Jun 2026 | Series A | |
| 15 Apr 2026 | Series A | |
| 26 Feb 2026 | Series C+ | |
| 13 Jan 2026 | Seed | |
| 19 Aug 2025 | Series B |
Round details for Harpoon Ventures
Amounts, full round histories and every co-investor in Harpoon Ventures' rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
56 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| Aalo Atomics builds mass-manufactured nuclear power plants designed to power data centers and other applications | EducationIndustrial & Manufacturing | Aug 2025Series B | Page + round | |
| Akita connects clinical and financial signals in real time to enable precise claims and care interventions for payers | Healthcare & Biotech | Portfolio page | ||
| Alta Ares develops autonomous defense systems adapted to modern warfare. | AI & Machine LearningAI & Machine Learning | Jun 2026Series A | Page + round | |
| American Supercritical builds modular power blocks that convert heat into electricity. | EducationIndustrial & Manufacturing | Portfolio page | ||
| Portfolio page | ||||
| Astranis designs, manufactures, tests, and operates geostationary orbit satellites for commercial and government customers. | Space & DefenseAI & Machine Learning | Portfolio page | ||
| Atropos Health creates high-quality personalized Real-World Evidence in minutes and at scale, creating the trusted currency of value in healthcare. | Healthcare & Biotech | Portfolio page | ||
| Bluesky is a social media company that provides an open network for users to connect and share content | Media & EntertainmentHealthcare & Biotech | Portfolio page | ||
| Buoyant provides self-hosted AI inference and Linkerd service mesh solutions for enterprises | AI & Machine LearningEnterprise Software | Portfolio page | ||
| Capable turns frontier intelligence into frontier medicines | Healthcare & Biotech | Portfolio page | ||
| The company is building a future where biology is no longer destiny, but design | Healthcare & Biotech | Portfolio page | ||
| Corridian manufactures ultra-large Autonomous Underwater Vehicles designed to address the acute need for scale beneath the waves. | AI & Machine LearningAI & Machine Learning | Nov 2026Seed | Page + round | |
| CyCognito provides a platform for preemptive exposure management and attack surface management to help companies identify and fix external threats. | CybersecurityAI & Machine Learning | Portfolio page | ||
| Decodable connects to data sources, processes data, and sends it to where it needs to go. | AI & Machine LearningCybersecurity | Portfolio page | ||
| The company provides an AI platform for building, running, and governing AI agents and applications | AI & Machine LearningEnterprise Software | Aug 2023Series B | Page + round | |
| Electroflow turns overlooked saltwater resources into battery-ready materials | Legal & ComplianceIndustrial & Manufacturing | Portfolio page | ||
| Encord provides a data infrastructure layer for training and running AI on the right data | AI & Machine LearningEnterprise Software | Feb 2026Series C+ | Page + round | |
| EraDrive provides a unified platform for space safety, performance, and defense | AI & Machine LearningSpace & Defense | Portfolio page | ||
| Genesis Molecular AI develops artificial intelligence for small molecule drug discovery | Healthcare & Biotech | Portfolio page | ||
| General Galactic is building spacecraft for logistics around the Earth and across the solar system. | Space & DefenseAI & Machine Learning | Portfolio page |
About this data
site last read 5 Nov 2026- Site
- harpoon.vc
- Last read
- 5 Nov 2026
- Watching since
- 5 Nov 2026
- Rounds since
- 9 Aug 2023
- Companies checked
- 56
Rates come from what VCinfo has observed since observation_start. Firms tend to remove companies that closed, so early rates understate reality. A company leaving a portfolio page does not mean it closed or exited. An unreachable site means our checks failed, nothing more.
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