Ursa Major

Overview

Builds aerospace and defense propulsion systems for hypersonic vehicles, solid rocket motors, and space mobility, serving defense programs needing scalable engines and missile components.

Part of the Aerospace Alley ecosystem

Related

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• Rendezvous RoboticsBuilds self-assembling spacecraft tiles that launch flat, assemble autonomously in orbit with electromagnetic control, and support defense, direct-to-device communications, and orbital compute missions.
• SkyloomSkyloom Global provides space-based optical data relay services that improve bandwidth, speed, availability, and secure bidirectional connectivity for satellite-to-satellite and satellite-to-Earth transmissions.
• Space KineticBuilds the Whirlwind space operations platform, deploying micro-payloads from host spacecraft at high velocities without thrusters to enable lower-cost maneuvering in orbit.
• True AnomalyBuilds autonomous spacecraft, payloads, mission software, and space-based interceptors for defense customers seeking space superiority and autonomous mission command in contested orbital environments.
• United Launch AllianceBuilds, assembles, and integrates rocket systems, delivers launch services for government and commercial customers, and provides mission support and launch operations.
• Voyager Technologies ($VOYG)Builds defense and space systems, including propulsion, advanced electronics, orbital infrastructure, and mission management tools for space programs and national security customers.

Timeline

1. Jan 2026Funding Roundtechcrunch.com ↗

   Series F; rocket propulsion (Hadley + Draper engines) for hypersonics.

2. Mar 2025Funding Roundtechcrunch.com ↗

   Hypersonic + tactical rocket engines; Hadley + Ripley + Draper engine families.