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Washington Harbour Partners — Portfolio, Page 2

Investor actively backing innovative startups and growth-stage companies across various industries and funding rounds.

50
Companies
$4.1B
Total invested
$78.1M
Avg. check
48
Industries
Artificial Intelligence (AI) 9Aerospace 7Manufacturing 6Information Technology 4Drones 3Software 3+42 more
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Portfolio companies

Showing 2548 of 50
Standard Nuclear
January 2026

Standard Nuclear manufactures advanced nuclear fuel for next-generation reactors and high-temperature applications.

Energy · Oak Ridge$140.0M Series A
Thunder
November 2024

Thunder is an IT consulting company that provides salesforce, AI, and Amazon Connect implementation and managed services.

AI Infrastructure · San Francisco$7.8M Series A
Quindar
November 2025

Quindar offers a one-stop shop in the cloud for spacecraft analysis and operations.

Cloud Infrastructure · Washington$18.0M Series A
Epirus
October 2025

Epirus builds directed energy and power management systems to solve some of the world’s most complex problems.

Aerospace · TorranceCorporate Round
Adlumin
October 2023

Adlumin provides an enterprise-grade security operations platform to detect cyber threats and keep mid-market organizations secure.

Cyber Security · Burlington$70.0M Series B
Worldscape
March 2026

Worldscape is an AI-powered geospatial intelligence software company serving defense, government, and enterprise customers.

Artificial Intelligence (AI) · Redmond$6.0M Seed
Smack Technologies
March 2026

Smack's purpose is to provide Decision Dominance to the Department of War, our allies, and partners.

Artificial Intelligence (AI) · El Segundo$32.0M Series A
VulcanForms
January 2026

VulcanForms is a digital manufacturing company that provides industrial-scale metal production services to produce metal components.

Industrial · Devens$220.0M Series D
Northwood Space
January 2026

Northwood Space designs ground infrastructure for spacecraft communication and data handling with deployable systems for connectivity.

Aerospace · Torrance$100.0M Series B
Array Labs
January 2026

Array Labs designs and operates space-based radar systems and delivers 3D Earth imagery and geospatial data services.

Aerospace · Palo Alto$20.0M Series A
Hadrian
December 2025

Hadrian builds AI-powered automated factories that manufacture precision parts for defense, aerospace, and space industries.

Aerospace · Hawthorne$131.3M Private Equity
Vulcan Elements
November 2025

Vulcan Elements is a manufacturer of rare-earth magnets used in critical defense and commercial applications.

Aerospace · Cambridge$620.0M Debt Financing
Saildrone
October 2025

Saildrone is a maritime company that enables navies, governments, and organizations to obtain data required to monitor the maritime domain.

Artificial Intelligence (AI) · Alameda$50.0M Corporate Round
Conifers.Ai
October 2025

Conifers.ai offers an AI-powered platform designed to assist security operations centers and managed security service providers.

Artificial Intelligence (AI) · DallasPrivate Equity
Stoke Space
October 2025

Stoke Space develops fully reusable Nova rockets for orbital space mobility.

Aerospace · Kent$860.0M Series D
Medallion
August 2025

Medallion automates credentialing, enrollment, onboarding, and compliance to streamline healthcare network operations.

Artificial Intelligence (AI) · San Francisco$43.0M Series C
Shield AI
August 2025

Shield AI is a deep-tech company that focuses on developing AI-powered systems to enhance the safety of service members and civilians.

Artificial Intelligence (AI) · San DiegoSecondary Market
Rune Technologies
July 2025

Rune Technologies develops AI-enabled predictive logistics solutions for military operations.

Artificial Intelligence (AI) · Arlington$24.0M Series A
Hidden Level
February 2025

Hidden Level provides airspace monitoring and drone detection technologies for infrastructure and address national security threats.

Aerospace · Syracuse$65.0M Series C
Raft
April 2024

A niche consulting organization focused on Cloud Native, DevSecOps, and Modern Application Development for mission focused enterprises

Reston$60.0M Private Equity
Sevco Security
June 2023

Sevco Security is an IT asset visibility and cybersecurity company providing a unified asset intelligence platform.

Cyber Security · Austin$17.0M Series Unknown
RED 6
June 2023

RED 6 is an augmented reality company that works with the Air Force to train fighter pilots.

Air Transportation · Orlando$70.0M Series B

Where Washington Harbour Partners invests

Artificial Intelligence (AI)9
Aerospace7
Manufacturing6
Information Technology4
Drones3
Software3

About Washington Harbour Partners's portfolio

How many companies has Washington Harbour Partners invested in?

Washington Harbour Partners has invested in 50 companies tracked in our database. The portfolio spans multiple industries and funding stages, from seed-stage startups to late-stage companies.

What industries does Washington Harbour Partners invest in?

Washington Harbour Partners's top investment sectors include Artificial Intelligence (AI), Aerospace, Manufacturing, Information Technology, Drones. The firm invests across 48 different industry categories.

What is Washington Harbour Partners's largest investment?

Among tracked funding rounds, Stoke Space received $860.0M in a Series D round. Washington Harbour Partners's total known invested capital is $4.1B.

What is the average investment size for Washington Harbour Partners?

Washington Harbour Partners's average investment size is $78.1M across its portfolio of 50 companies.

What are Washington Harbour Partners's most recent investments?

Recent Washington Harbour Partners portfolio additions include Standard Nuclear, Thunder, Quindar, Epirus, Adlumin. These companies were founded in 2020 or later.

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