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Washington Harbour Partners

Activity from announced rounds

Activity in this selectionUnited States · Jun 30, 2026 · Jun 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
$400M
1 disclosed · full round size, not this investor’s share

By stage

Series C+2

By primary sector

Developer tools1
Space tech1

By country

United States2

Rounds

2 in this selection
Apex

Apex manufactures configurable satellite platforms and provides mission services for commercial and national-security space programs.

>$200MSeries E
Role not disclosed
NinjaOne

Provides a unified IT operations platform for simplifying work

$400MSeries C
Role not disclosed