Washington Harbour

Venture capital · Arlington, Virginia

Founded in 2019, Washington Harbour is a private investment firm based in Arlington, Virginia. 42 portfolio companies, 3 recorded rounds and 61 funds are on record.

AUM
$4.7B
Portfolio companies
42
Recorded deals
3
1 in last 12M
Last investment
Sep 2026

Deal history

3 participations
DateCompanyRaisedRole
Sep 2026Stoke Space▮▮
Feb 2026Stoke Space▮▮
Mar 2025OpenAI▮▮
All 3 deals — valuations, dates and lead flags are a member feature
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Investment activity

Washington Harbour joined 3 recorded rounds in the last two years (2 in the last 12 months). By year: 2 in 2026 and 1 in 2025. 1 round landed in the last 90 days. Washington Harbour most often invests alongside Glade Brook Capital Partners (2 shared rounds), Industrious Ventures (2 shared rounds) and US Innovative Technology Fund (2 shared rounds). Most recently: Stoke Space (Series E, Sep 2026) and Stoke Space (Series D, Feb 2026).

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