Washington Harbour Partners

Washington Harbour Partners is an investment firm that deploys capital in the U.S. Washington Harbour Partners seeks to earn superior risk-adjusted returns for its investors over the long term. The firm’s fundamentally oriented investments focus primarily on the technology, media, communications, fintech, and business services sectors. The public equity efforts emphasize deep due diligence on individual companies using a private-equity approach. The private equity strategy targets growth-oriented private companies.

Mina Faltas

Founder, Managing Partner and CIO

Jerad Speigel

Chief Strategy and Corporate Development Officer

16 past transactions

Apex

Series C in 2025
Apex designs and manufactures small satellites tailored for various space missions. The company focuses on streamlining satellite production by integrating modular hardware and standardized software systems. Apex offers platforms that support Earth observation, communications, and scientific research applications. Its approach emphasizes scalable manufacturing processes to meet the growing demand for satellite deployment. Apex collaborates with clients to customize satellite configurations based on mission-specific requirements.

Shield AI

Series F in 2025
Shield AI Inc is an artificial intelligence robotics company based in San Diego, California, focused on developing advanced AI-powered systems for national security and first responders. Incorporated in 2015, the company specializes in creating technologies that enhance the safety of military personnel and civilians. Its flagship products include Nova, an autonomous quadcopter drone equipped with lidar technology that operates effectively in GPS-denied environments, and Hivemind, an AI framework that allows various unmanned vehicles to learn from real and synthetic experiences, enabling autonomous operations without direct human control. Additionally, Shield AI has developed the V-BAT, a vertical takeoff and landing aircraft that can navigate contested environments and has been utilized in regions like the Black Sea and the Middle East. The company aims to transform defense operations by leveraging cutting-edge AI and machine learning technologies to execute complex tasks in dynamic and denied environments.

Epirus

Series D in 2025
Epirus, Inc. is a technology company based in Hawthorne, California, specializing in the design and development of advanced defense systems that utilize artificial intelligence and directed energy. Founded in 2018, the company focuses on creating solid-state, software-defined high-power microwave solutions aimed at countering unmanned aircraft systems and other asymmetric threats. Its flagship product, ELECTROMAGNETIC PULSE, serves as a counter-infrastructure solution that can simultaneously target multiple threats, effectively neutralizing drones and swarms. By integrating AI and machine learning with advanced electronics, Epirus enhances the detection and tracking of objects of interest, offering innovative capabilities in electronic warfare and power management for both defense and commercial sectors.

Hidden Level

Series C in 2025
Hidden Level develops airspace sensing technologies, specializing in passive radar and drone detection through RF spectrum signal analysis. Its airspace monitoring systems deploy networks of passive sensors to detect and track drones and other aerial vehicles over large geographic areas, supporting critical infrastructure, defense, and public safety customers. The company emphasizes safety through sensing, offering services that cover classical systems engineering, data modeling and analysis, field testing, and full product lifecycle management, including PCB design. Its solutions enable monitoring of low-altitude air traffic while maintaining privacy in compliance with applicable regulations.

Thunder

Venture Round in 2024
Thunder is a management consulting company focused on delivering business value through intelligent frameworks and solutions. The company specializes in assisting leading brands in addressing complex challenges using Salesforce. Additionally, Thunder operates an online data analysis platform that converts data into transformative business outcomes. This platform provides a service cloud for customer support and marketing clouds for digital marketing campaigns, allowing users to leverage data analysis to achieve a competitive advantage.

Radiant

Series C in 2024
Radiant is a clean energy startup based in Los Angeles, California, that specializes in the development of portable nuclear microreactors. Founded in 2019, the company aims to provide an alternative to fossil fuels for both military and commercial applications. Its flagship product, the Kaleidos microreactor, is designed to fit within a shipping container, allowing for transportation by air, ship, and road. This innovative microreactor serves as a zero-emissions power source, making it particularly suitable for remote locations and critical applications where traditional diesel generators are typically used.

Hidden Level

Series B in 2024
Hidden Level develops airspace sensing technologies, specializing in passive radar and drone detection through RF spectrum signal analysis. Its airspace monitoring systems deploy networks of passive sensors to detect and track drones and other aerial vehicles over large geographic areas, supporting critical infrastructure, defense, and public safety customers. The company emphasizes safety through sensing, offering services that cover classical systems engineering, data modeling and analysis, field testing, and full product lifecycle management, including PCB design. Its solutions enable monitoring of low-altitude air traffic while maintaining privacy in compliance with applicable regulations.

Raft

Private Equity Round in 2024
A niche consulting organization focused on Cloud Native, DevSecOps, and Modern Application Development for mission focused enterprises

SIXGEN

Acquisition in 2023
SixGen, LLC is a cybersecurity firm headquartered in Annapolis, Maryland, founded in 2014. The company specializes in offering a comprehensive range of cybersecurity services designed to protect critical assets and infrastructure against a backdrop of increasing global threats. SixGen employs a team of experienced data scientists, big data engineers, and cloud engineers to deliver services that include cyber assessments, incident response, security engineering, and the development of computer network operations. By leveraging advanced analytics and a holistic approach, SixGen assists both commercial and federal clients in understanding and mitigating their cybersecurity risks effectively.

Adlumin

Series B in 2023
Founded in 2016, Adlumin operates a security automation platform designed to detect threats, malfunctions, and IT failures. Its platform collects and analyzes data from various sources, offering features like One-Touch Compliance Reporting for financial auditors. The company empowers organizations with advanced technology and expert guidance for proactive cybersecurity and efficient IT operations.

Sevco Security

Venture Round in 2023
Sevco Security, Inc., established in 2020 and headquartered in Austin, Texas, specializes in cybersecurity products and services. The company offers a unified asset intelligence platform that addresses the challenges posed by an extended attack surface. This cloud-native platform focuses on cyber asset management and risk management, creating a trusted repository of an organization’s devices, users, and applications. By maintaining a continuously updated inventory that encompasses IT assets, cloud resources, IoT devices, operational technology, and external contractors, Sevco Security enables organizations to autonomously identify and mitigate security gaps. This capability not only helps clients uncover non-compliant assets but also enhances their incident response times, thereby strengthening their overall cybersecurity posture.

RED 6

Series B in 2023
RED 6 INC. is a company that specializes in outdoor augmented reality solutions specifically designed for air combat training. Founded in 2017 and based in Santa Monica, California, RED 6 has developed the Airborne Tactical Augmented Reality System (ATARS), which allows pilots and ground operators to visualize synthetic threats in real-time during high-speed outdoor environments. This innovative platform integrates augmented reality technology into military training, enabling real pilots in actual aircraft to engage with computer-generated enemies effectively. By utilizing an augmented reality visor, an AI-driven multiplayer network, and biometric feedback loops, RED 6 enhances training experiences, thereby improving readiness and operational capabilities for military applications. The company's technology is not only pivotal for defense but also has potential applications across various industries, including entertainment, sports, and medicine.

Solsten

Series B in 2022
Founded in 2018 by Joe Schaeppi (CEO) and Bastian Bergmann (COO), Solsten is a Berlin-based AI company specializing in understanding human behavior within digital environments. Its platform, used by key decision-makers across various industries including gaming and medium-to-large studios, leverages AI to analyze psychological traits and behaviors, enabling personalized marketing strategies, content creation, and customer engagement.

CollabraLink Technologies

Acquisition in 2021
CollabraLink Technologies is an information technology company that provides enterprise software solutions and program support.

AviaGames

Series B in 2021
Founded in 2017, AviaGames develops and publishes mobile skill gaming apps where users can play and win real money. Its flagship platform, Pocket7Games, offers a variety of gaming categories under one membership system. Within two years, the company has achieved significant success in the U.S., leading monthly tournaments and ranking high on app store charts.

Saildrone

Saildrone designs and manufactures wind- and solar-powered autonomous surface vehicles, called Saildrones, to collect ocean data at scale. Founded in 2012 and based in Alameda, California, the company provides high-resolution ocean datasets for climate research, weather forecasting, oceanography, mapping, fish stock analysis, and environmental monitoring. Its vehicles carry sensors and proprietary AI to deliver long-duration, real-time data above and below the sea surface, enabling governments, researchers, and commercial clients to monitor maritime conditions, support border protection and critical infrastructure security, and prevent ecological disasters. Saildrone operates globally, contributing data used to improve planetary models and decision-making across maritime domains.
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