Washington Harbour key facts
- Washington Harbour is a venture capital firm based in Arlington, Virginia with 42 tracked portfolio companies.
- Notable positions include OpenAI, xAI, Anduril Industries.
- PrivateMarketView records 3 deal participations by Washington Harbour.
- Washington Harbour has 61 funds on record, raising $1.6B across the 59 that report a size.
- The team roster lists 23 people.
- Washington Harbour reports $597.3M in regulatory assets under management across 75 private funds, per its SEC Form ADV (2026-03).
About Washington Harbour
Founded in 2019, Washington Harbour is a private investment firm based in Arlington, Virginia. The firm focused on scaling mission-critical technology companies operating at the intersection of national security, intelligence, and advanced digital infrastructure. The firm partners with management teams to build category leaders serving U.S. and allied government customers across cyber, data, AI, and defense technology. The firm Partners supports portfolio companies through access to mission-critical customers, navigation of complex procurement environments, and scaling of secure, compliant technology platforms.
Investment focus
Its SEC Form ADV lists $597 million in regulatory assets under management across 75 private funds (Mar 2026).
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).
Washington Harbour portfolio at a glance
42 portfolio companies are on record for Washington Harbour, including OpenAI, xAI and Anduril Industries.
34 of the 42 carry a recorded valuation and 9 have recorded secondary-market trades, the names a secondary buyer or seller can price.
Washington Harbour funds
61 funds are on record for Washington Harbour, totalling $1.6 billion across the 59 that report a size. The most recent is Washington Harbour Enduring Advantage Fund, LP (2026 vintage).
Washington Harbour team
23 people are on record at Washington Harbour: 9 operating partners, 7 partners, 2 associates, 1 principal and 4 others. Senior names include Alexandra Zhang (Investment Partner), Claire Souhan (Director) and Courtney Kelly-Page (Investment Partner). 21 of them have a verified direct contact on file.
Washington Harbour at the SEC
Form ADV · 2026-03 · CRD 309915- Regulatory AUM
- $597.3M
- Private fund assets
- $3.5B
- Private funds
- 75 · 74 private equity, 1 hedge
- Staff
- 12
- Registered office
- ARLINGTON, VA
- SEC status
- Approved
Reports custody of client assets.
Source: SEC Investment Adviser Public Disclosure, Form ADV (registered as WASHINGTON HARBOUR PARTNERS LP).
- ·The top 10 names in the book — of 42 recorded positions
- ·Watchlist + alerts for Washington Harbour's activity
Portfolio
42 companies · priced for members| Company | Industry | Valuation | First invested | Role |
|---|---|---|---|---|
| OpenAI | Software Development Applications | ▮ | ▮ | ▮ |
| xAI | Business/Productivity Software | ▮ | ▮ | ▮ |
| Anduril Industries | Aerospace and Defense | ▮ | ▮ | ▮ |
+ 39 more companies · all 42, priced and dated or a free account shows the top 10 names — no card Membership and data by Private Market View | ||||
Washington Harbour recent deals
3 recordedMembership and data by Private Market View
Funds
6 of 61 recorded- Washington Harbour Enduring Advantage Fund, LP2026—
- Washington Harbour GS, LP2026$11.5M
- Washington Harbour Trusted Space LP2026$18.5M
- Washington Harbour Navigation LLC2026$5.0M
- Washington Harbour Sandbox LLC2025$1.0M
- Washington Harbour Metaverse XVII LLC2025$5.9M
$1.6B raised across the 59 funds that report a size
All 61 funds →Partners, principals, and the people who answer a pitch. Pro members reveal contacts with credits.
Frequently asked about Washington Harbour
- What companies does Washington Harbour invest in?
- Washington Harbour has 42 recorded portfolio companies, including OpenAI, xAI, Anduril Industries.
- What is Washington Harbour's AUM?
- Washington Harbour manages approximately $4.7B in assets.