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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?

VulcanForms

Burlington, Massachusetts, United States

VulcanForms enables critical industries to innovate, grow, and deliver sustainable impact.

IndustrialInfrastructureManufacturingSustainability
Series DJan 30, 2026
Amount Raised: $220,000,000
Northwood Space

Torrance, California, United States

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

AerospaceHardwareSatellite Communication
Series BJan 27, 2026
Amount Raised: $100,000,000
Standard Nuclear

Oak Ridge, Tennessee, United States

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

EnergyEnergy EfficiencyNuclear
Series AJan 26, 2026
Amount Raised: $140,000,000
Hadrian

Hawthorne, California, United States

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

AerospaceArtificial Intelligence (AI)Machinery ManufacturingManufacturingSupply Chain Management
Series UnknownJan 9, 2026
Amount Raised: $131,307,594
Array Labs

Palo Alto, California, United States

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

AerospaceGeospatialManufacturing
Series AJan 5, 2026
Amount Raised: $20,000,000
Radiant

El Segundo, California, United States

Radiant develops portable nuclear microreactors designed to generate electricity and heat in a compact, factory-built form.

Clean EnergyEnergyEnergy EfficiencyRenewable Energy
Series DDec 17, 2025
Amount Raised: $300,000,000
Trusted Space

Leesburg, Virginia, United States

Trusted Space is a differentiated professional services company focused on providing modeling, simulation & analysis services.

Information TechnologyMachine LearningSatellite CommunicationSimulationSoftwareSpace Travel
Private EquityDec 4, 2025
Quindar

Washington, District of Columbia, United States

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

Cloud InfrastructureSaaSSatellite Communication
Series ANov 19, 2025
Amount Raised: $18,000,000
Conifers.Ai

Dallas, Texas, United States

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

Artificial Intelligence (AI)Cyber SecurityNetwork Security
Private EquityOct 28, 2025
Stoke Space

Kent, Washington, United States

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

AerospaceProduct DesignSpace Travel
Series DOct 8, 2025
Amount Raised: $510,000,000

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