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Washington Harbour Partners

Activity from announced rounds

Activity in this selectionOct 24, 2026 · Space tech · Jul 27, 2026

Washington Harbour Partners invests in technology businesses addressing US economic and national-security needs, including space, autonomous systems, cybersecurity, energy and the industrial base.

Its focus is on commercial technologies that fill specific mission gaps for government and enterprise customers. The investment team works alongside operating partners and advisers with experience in these sectors.

The firm emphasises access to end customers and understanding how the technology will be used. That is particularly relevant for founders whose route to scale depends on government procurement, defence requirements or deployment within critical infrastructure.

Sources
Rounds participated in
2
Confirmed lead rounds
0
1 roles undisclosed
New companies
0
First participation on record · 2 follow-on
Funding in participating rounds
$1B
2 disclosed · full round size, not this investor’s share

By stage

Series C+1
Undisclosed1

By primary sector

Space tech2

By country

United States2

Rounds

2 in this selection
Stoke Space Technologies

Stoke Space develops Nova rockets with reusable first and second stages for commercial and government launch customers.

$1BSeries E initial closing
Participant
Array Labs

Building a new way to understand the physical world

$21MStrategic
Role not disclosed