DiamondStream Partners

DiamondStream Partners is a growth equity firm based in Seattle, Washington, founded in 2014. The firm specializes in investing in middle-stage companies within the aerospace and aviation sectors, as well as related hardware and software enterprises in the United States and Europe. With a focus on travel transformation, DiamondStream Partners targets businesses that demonstrate significant growth potential and can benefit from emerging technology trends. The Managing Partners, who co-founded Volaris, bring extensive expertise in aviation, investing, and technology to the firm, employing a distinctive approach that is guided by industry demand drivers.

William Donovan

Co-Founder and Managing Director

Brian Flynn

Co-Founder and Managing Director

David Spurlock

Managing Director

Dean Donovan

Co-Founder and Managing Director

Past deals in Aviation

SwissDrones

Series B in 2024
SwissDrones is an aviation company focused on the development, manufacturing, and operation of long-range unmanned helicopter systems tailored for commercial and public safety uses. The company’s innovative twin-rotor aircraft are engineered to serve as cost-effective alternatives to manned helicopters, offering significant reductions in carbon emissions and enhanced safety by eliminating the need for crewed operations in adverse weather conditions. Their systems are designed for various applications, including aerial surveillance, search and rescue, and critical infrastructure inspections. Equipped to integrate high-end sensor payloads, these unmanned helicopters enable long-range operations beyond visual line of sight during both day and night, with operational endurance extending for several hours.

AlarisPro

Venture Round in 2023
AlarisPro, Inc. provides a web-based subscription service that specializes in fleet management for unmanned aircraft systems (UAS). The company offers two main platforms: AlarisPro for Operators, which delivers proactive fleet management tools and performance data to anticipate maintenance needs, and AlarisPro for Manufacturers, which tracks system performance and lifecycle to inform production and development. Their services cater to a diverse clientele, including large-scale UAS operators, manufacturers, Fortune 500 companies, military contractors, law enforcement agencies, research institutions, and media outlets. Founded in 2019 and based in Baltimore, Maryland, AlarisPro is dedicated to enhancing safety and operational efficiency within the UAS community through its advanced software solutions and component-level tracking capabilities.

SwissDrones

Venture Round in 2023
SwissDrones is an aviation company focused on the development, manufacturing, and operation of long-range unmanned helicopter systems tailored for commercial and public safety uses. The company’s innovative twin-rotor aircraft are engineered to serve as cost-effective alternatives to manned helicopters, offering significant reductions in carbon emissions and enhanced safety by eliminating the need for crewed operations in adverse weather conditions. Their systems are designed for various applications, including aerial surveillance, search and rescue, and critical infrastructure inspections. Equipped to integrate high-end sensor payloads, these unmanned helicopters enable long-range operations beyond visual line of sight during both day and night, with operational endurance extending for several hours.

Volantio

Series A in 2022
Volantio Inc. is a software company based in Atlanta, Georgia, that specializes in developing technology solutions for the airline industry. The company focuses on maximizing unit revenues and improving customer experience through its automated, mobile-based software. Volantio's platforms, such as SmartAlerts and PriceStream, enable airlines to engage with customers during their booking journey and enhance retargeted marketing efforts. By capturing customer intent data, the software helps airlines dynamically re-accommodate passengers and optimize capacity utilization, ultimately increasing yield and reducing operational costs. Volantio collaborates with major airlines worldwide, providing tools that offer better predictability and control for travelers while enhancing airline operational efficiency. The company was established in 2008 and has expanded its reach with team members in the Netherlands and Australia.

Stellar Labs

Series A in 2017
Stellar Labs, Inc., incorporated in 2014 and based in Burlingame, California, operates within the technology sector, focusing on the private aviation industry. The company has developed an advanced commercial operations system that integrates an all-digital distribution network, aiming to transform and enhance business aviation. Stellar Labs offers a suite of cloud-based applications designed to cater to a range of operational needs, from simple single-aircraft management to complex operations involving large fleets and multiple bases. This innovative approach positions Stellar Labs as a key player in revolutionizing the efficiency and effectiveness of private aviation services.
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