WASHINGTON HARBOUR PARTNERS LP
WASHINGTON HARBOUR PARTNERS LP is a Seed, Series A, Series B, Series C+, buyout, other and debt fund in the US, Australia, Canada, New Zealand and United Kingdom investing in AI, Security, defense-tech, government-it, enterprise-technology, cloud-computing, space, intelligence-analysis, surveillance-and-reconnaissance and defense-technology.
- Stages
- Seed, Series A, Series B, Series C+, buyout, other, debt
- Sectors
- AI, Security, defense-tech, government-it, enterprise-technology, cloud-computing, space, intelligence-analysis, surveillance-and-reconnaissance, defense-technology
- Invests in
- US-wide, Australia, Canada, New Zealand, United Kingdom
- Round role
- Leads rounds
- Actively investing
- Yes
- Founded
- 2019
- Assets under management
- $4.7B
- Website
- washingtonharbour.com
Check size not disclosed
Thesis
Washington Harbour Partners LP, founded in 2019, is a private investment firm specializing in non-cyclical, mission-critical businesses within sectors like defense technology, cybersecurity, government IT, and enterprise technology. Their primary geographic focus includes the U.S. and the Five Eyes nations. They manage various funds, including the Enduring Advantage Fund (control-oriented, lower middle-market, dual-use mission-critical technology), Opportunities Funds (private equity in public markets, small and mid-cap, concentrated long book, hedged approach), and specialized funds (Federal IT, Digital Mission, Cyber, Trusted Space, GS Funds) focusing on control-only, lower middle-market Defense & Government companies in the Washington D.C. area. They offer flexible capital for majority and some minority positions. As of March 31, 2026, the firm managed $4.7 billion in AUM.
Common questions
Does WASHINGTON HARBOUR PARTNERS LP invest at the Seed stage?
Yes. WASHINGTON HARBOUR PARTNERS LP lists Seed, Series A, Series B, Series C+, buyout, other and debt among the stages it invests in.
Where does WASHINGTON HARBOUR PARTNERS LP invest?
WASHINGTON HARBOUR PARTNERS LP invests in the US, Australia, Canada, New Zealand and United Kingdom.