Startup · United States
HQ Austin, United StatesFounded 20251-10 employees
Developer of the Harpe guided micro-missile and an eight-round portable launcher for defeating Group 1 and 2 drones. Y Combinator Summer 2025 company; moved from San Francisco to the Austin area in late 2025.
24-inch guided micro-missile fired from an eight-round portable launcher (under 36 kg) against Group 1-2 drones; stated 2 km range. Earlier test articles were designated Mk-I to Mk-III.
Photo: U.S. Army photo by Spc. Julian Winston · Public domain (PD-USGov-Military-Army)
Newest unveiled first. Open a product for its milestone timeline, components and sources.
| Technology | Role | Maturity | TRL | Notes | Confidence |
|---|---|---|---|---|---|
| Kinetic counter-UAS interceptors | Developer | Prototype | — | — | Reported |
Maturity and TRL describe this organization's work; the field-wide maturity is on each technology's page.
| Announced | Stage | Amount | Valuation | Lead investors | Other investors | Confidence |
|---|---|---|---|---|---|---|
| Sep 18, 2025 | Seed | $6.0M | — | — | Alumni Ventures, Bow Capital, Lobster Capital, Multimodal Ventures, Pioneer Fund, Rebel Fund | Reported |
| 2025 | Pre-Seed | Undisclosed | — | — | Y Combinator | Reported |
Totals add known amounts using recorded USD conversions where available; other currencies are shown separately. A ~ marks an estimated amount.
| Program | Role | Program status | Confidence |
|---|---|---|---|
| Falcon Peak | Competing bidder | Development | Reported |
| Facility | Kind | Location | Status | Confidence |
|---|---|---|---|---|
| Perseus Defense Buda headquarters | Headquarters | Buda, Texas, United States | Operating | Reported |
Crunchbase via Bright Data · Supports Organization · num employees
“{"num_employees": "1-10"}”
The Defence Blog · Apr 11, 2026 · Supports Facility, Organization, Organization technology, System
“in December 2025 leased a 17,500-square-foot headquarters facility in Buda, Texas.”
Army Recognition · Supports System
“the Harpe interceptor, a 61 cm missile with a stated 2 km engagement range”
SEC EDGAR · Nov 14, 2025 · Supports Funding round · investors
“Issuer: AVSF - Perseus 2025, LLC; Date of First Sale: 2025-10-30; Total Amount Sold: 215000; Related person: Michael Collins (CEO of Alumni Ventures LLC, the Issuers Sole Manager)”
Tectonic · Sep 18, 2025 · Supports Funding round · amount, Funding round · investors
“they've raised a $6M seed round from over 15 investors, including Alumni Ventures and Bow Capital, to help them scale.”
Black Flag · Supports Funding round, Organization, Role
“Some investors Include... Alumni Ventures Pioneer Fund Bow Capital Rebel Fund Y Combinator”
Y Combinator · Supports Funding round, Organization, Role
“Summer 2025”
Y Combinator · Jul 4, 2025 · Supports Organization, Role
“Jason and Steve studied aerospace engineering together at Penn State University and founded Perseus Defense in 2025.”
Each fact on this page is attached to the sources that support it. Archived copies are linked when we keep one.