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Washington Harbour Partners

North America, Virginia, United States, Arlington

Description

Washington Harbour Partners is an investment firm that deploys capital in the U.S.

Investor Profile

Washington Harbour Partners has backed more than 15 startups, with 9 new investments in the last 12 months alone. The firm has led 3 rounds, about 20% of its total and boasts 0 exits across its portfolio.

Investment Focus Highlights

  • Concentrates on Series B, Series Unknown, Series C rounds (top funding stages).
  • Majority of deals are located in United States, Germany.
  • Strong thematic focus on Software, Artificial Intelligence (AI), Aerospace.
  • Led 2 rounds in the past year.

Stage Focus

  • Series B (33%)
  • Series Unknown (20%)
  • Series C (20%)
  • Private Equity (7%)
  • Series D (7%)
  • Series F (7%)
  • Series A (7%)

Country Focus

  • United States (93%)
  • Germany (7%)

Industry Focus

  • Software
  • Artificial Intelligence (Ai)
  • Aerospace
  • Information Technology
  • National Security
  • Machine Learning
  • Cyber Security
  • Remote Sensing
  • Energy
  • Energy Efficiency
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FAQ

Frequently Asked Questions

Learn who this investor regularly partners with—both firms and angels—and explore their latest activity.

Who does Washington Harbour Partners frequently co-invest with?

StepStone Group
North America, New York, United States, New York
Co-Investments: 2
8VC
North America, California, United States, San Francisco
Co-Investments: 2
Bascom Ventures
North America, New Hampshire, United States, Manchester
Co-Investments: 1
Veteran Ventures Capital
North America, Virginia, United States, Mclean
Co-Investments: 2
SYN Ventures
North America, Florida, United States, West Palm Beach
Co-Investments: 2
Decisive Point
North America, New York, United States, Beacon
Co-Investments: 2
Andreessen Horowitz
North America, California, United States, Menlo Park
Co-Investments: 4
Booz Allen Ventures
North America, California, United States, San Francisco
Co-Investments: 2
Alumni Ventures
North America, New Hampshire, United States, Manchester
Co-Investments: 2
Galaxy Interactive
North America, New York, United States, New York
Co-Investments: 2

What are some of recent deals done by Washington Harbour Partners?

Rune Technologies

Arlington, Virginia, United States

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

LogisticsManufacturingMilitary
Series AJul 21, 2025
Amount Raised: $24,000,000
Firestorm

San Diego, California, United States

Firestorm develops AI-assisted, modular UAS platforms for adaptable and rapid remote operations.

AerospaceDronesIndustrial ManufacturingMachinery ManufacturingMilitary
Series AJul 16, 2025
Amount Raised: $35,000,000
Standard Nuclear

Oak Ridge, Tennessee, United States

Standard Nuclear is a reactor-agnostic producer of TRISO nuclear fuel.

EnergyEnergy EfficiencyNuclear
Series AJun 11, 2025
Amount Raised: $42,000,000
Saildrone

Alameda, California, United States

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

Artificial Intelligence (AI)Big DataDronesManufacturingMarine Technology
Series UnknownMay 13, 2025
Amount Raised: $60,000,000
Apex

Los Angeles, California, United States

Apex designs and manufactures satellite buses tailored for various space missions.

AerospaceCommercialManufacturing
Series CApr 29, 2025
Amount Raised: $200,000,000
Shield AI

San Diego, California, United States

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)Autonomous VehiclesDronesMachine LearningNational Security
Series FMar 6, 2025
Amount Raised: $240,000,000
Epirus

Torrance, California, United States

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

AerospaceMachinery ManufacturingMilitarySoftware
Series DMar 5, 2025
Amount Raised: $250,000,000
Hidden Level

Syracuse, New York, United States

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

AerospaceNational SecurityRemote SensingSoftware
Series CFeb 3, 2025
Amount Raised: $65,000,000
Thunder

San Francisco, California, United States

Thunder is a management consulting company that unlocks business value with intelligent frameworks and solutions.

Business IntelligenceConsultingManagement Consulting
Series UnknownDec 17, 2024
Radiant

El Segundo, California, United States

Radiant develops portable nuclear microreactors as clean energy alternatives.

Clean EnergyEnergyEnergy EfficiencyRenewable Energy
Series CNov 14, 2024
Amount Raised: $100,000,000