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Washington Harbour Partners

Activity from announced rounds

Activity in this selectionApr 30, 2026 · AI · Apr 1, 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
—
2 roles undisclosed
New companies
2
First participation on record · 0 follow-on
Funding in participating rounds
$97M
2 disclosed · full round size, not this investor’s share

By stage

Series A1
Series B1

By primary sector

Defense tech1
Space tech1

By country

United States2

Rounds

2 in this selection
Firestorm Labs

Develops containerized manufacturing platform for drone systems

$82MSeries B
Role not disclosed
Citra Space

Develops space object identification and characterization technology

$15MSeries A
Role not disclosed