United States operational
Washington Harbour Partners
Washington Harbour Partners is a U.S. growth-equity investment firm that has become a repeat backer of American satellite and space-defense manufacturers in 2026.
- Type
- investor
- Headquarters
- United States
- Ownership
- Private
- Last round
- Undisclosed round 2026-08
Quick Facts
About Washington Harbour Partners
Washington Harbour Partners is a U.S. growth-equity investment firm that has become a repeat backer of American satellite and space-defense manufacturers in 2026. It co-led Apex's $200 million growth round in June 2026 alongside Glade Brook Capital Partners at a $2.3 billion valuation, led Turion Space's $75 million Series B in April 2026 for space-domain-awareness satellites, and joined Array Labs' $20 million Series A in January 2026 for radar-payload satellites. That concentrated run of proliferated-satellite and space-domain-awareness deals — three sourced rounds in under six months — distinguishes it from generalist growth funds that invest in the sector only opportunistically.
Funding history
5 events| Date | Round | Amount | Investors | Source |
|---|---|---|---|---|
| 2026-08-31 | Undisclosed round | — | — Form D filed 2026-08-31: Washington Harbour Arctic, LLC (CIK 0002152764). Offering amount in the filing. | sec.gov |
| 2022-10-20 | Undisclosed round | — | — Form D filed 2022-10-20: Washington Harbour Capital LP (CIK 0001809124). Offering amount in the filing. | sec.gov |
| 2021-10-05 | Undisclosed round | — | — Form D filed 2021-10-05: Washington Harbour Capital LP (CIK 0001809124). Offering amount in the filing. | sec.gov |
| 2020-11-30 | Undisclosed round | — | — Form D filed 2020-11-30: Washington Harbour Capital Long Only Offshore Fund, Ltd. (CIK 0001832875). Offering amount in the filing. | sec.gov |
| 2020-04-10 | Undisclosed round | — | — Form D filed 2020-04-10: Washington Harbour Capital LP (CIK 0001809124). Offering amount in the filing. | sec.gov |
Signals
- New in directory
- added 2026-09-18
- Verification
- Verified 2026-09-19
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Frequently asked about Washington Harbour Partners
Quick answers to the questions readers most often search for.
- Where is Washington Harbour Partners based?
- Washington Harbour Partners is based in United States.
- What does Washington Harbour Partners do?
- Washington Harbour Partners is a U.S. growth-equity investment firm that has become a repeat backer of American satellite and space-defense manufacturers in 2026. It co-led Apex's $200 million growth round in June 2026 alongside Glade Brook Capital Partners at a $2.3 billion valuation, led Turion Space's $75 million Se…
- Is Washington Harbour Partners a public or private company?
- Washington Harbour Partners is an investment firm and is not listed on any stock exchange.
- What sector does Washington Harbour Partners operate in?
- Washington Harbour Partners works in investment.
Data Accuracy Notice: Information about Washington Harbour Partners is compiled from publicly available sources including company websites, press releases, regulatory filings, and industry reports. Data is reviewed periodically but may not reflect the most recent developments.