Proteus Space
Seed Round in 2025
Proteus Space designs and builds custom satellite buses and provides payload integration, including complete bus builds with payload installation, environmental testing and qualification, and licensing and insurance services for missions. The company also develops autonomous digital engineering and digital twin systems to support modeling, engineering and testing of custom satellites, enabling designers to model, engineer and test missions while reducing errors and increasing production speed.
Castelion
Series A in 2025
Castelion is a defense technology company that specializes in modernizing military systems. It applies advanced hardware development and manufacturing methods to address key national security challenges, focusing on affordability, scalability, and supply chain resilience. Castelion offers services like high-speed hypersonic testing, thermal protection systems, and avionics, designed to integrate with existing platforms and enhance military capabilities while mitigating these critical concerns.
CesiumAstro
Series B in 2024
CesiumAstro designs and manufactures advanced communication systems for satellites, UAVs, launch vehicles, and other airborne platforms. Its products include multi-beam active phased array systems, software-defined radios, single-board computers, and Ka-Band active phased array antennas. CesiumAstro's solutions enable connectivity between various mobile devices in space environments.
Castelion
Seed Round in 2023
Castelion is a defense technology company that specializes in modernizing military systems. It applies advanced hardware development and manufacturing methods to address key national security challenges, focusing on affordability, scalability, and supply chain resilience. Castelion offers services like high-speed hypersonic testing, thermal protection systems, and avionics, designed to integrate with existing platforms and enhance military capabilities while mitigating these critical concerns.
Proteus Space
Seed Round in 2023
Proteus Space designs and builds custom satellite buses and provides payload integration, including complete bus builds with payload installation, environmental testing and qualification, and licensing and insurance services for missions. The company also develops autonomous digital engineering and digital twin systems to support modeling, engineering and testing of custom satellites, enabling designers to model, engineer and test missions while reducing errors and increasing production speed.
Castelion
Venture Round in 2023
Castelion is a defense technology company that specializes in modernizing military systems. It applies advanced hardware development and manufacturing methods to address key national security challenges, focusing on affordability, scalability, and supply chain resilience. Castelion offers services like high-speed hypersonic testing, thermal protection systems, and avionics, designed to integrate with existing platforms and enhance military capabilities while mitigating these critical concerns.
CesiumAstro
Series B in 2022
CesiumAstro designs and manufactures advanced communication systems for satellites, UAVs, launch vehicles, and other airborne platforms. Its products include multi-beam active phased array systems, software-defined radios, single-board computers, and Ka-Band active phased array antennas. CesiumAstro's solutions enable connectivity between various mobile devices in space environments.
Geosite Inc. is a technology company that specializes in the development of a cloud-based platform for managing and utilizing geospatial data, including satellite imagery, Internet of Things data, and drone mapping. Founded in 2018 and based in Palo Alto, California, Geosite's platform serves various sectors, including energy, defense, and technology. It provides users with access to high-frequency satellite data, planning and logistics tools, and distributed sensor platform integrations. By linking spatial data and analytics to business operations and incident management, Geosite enables customers, including government and military agencies, to effectively scout construction projects and assess planned versus actual outcomes. The platform functions as a comprehensive marketplace for spatial imagery, offering decision-grade intelligence that supports informed decision-making.
CesiumAstro
Series A in 2019
CesiumAstro designs and manufactures advanced communication systems for satellites, UAVs, launch vehicles, and other airborne platforms. Its products include multi-beam active phased array systems, software-defined radios, single-board computers, and Ka-Band active phased array antennas. CesiumAstro's solutions enable connectivity between various mobile devices in space environments.