Hermeus

Building hypersonic military jets

Series C+
El Segundo, United States
Founded 2018
Website

About

Founded in 2020 and based in El Segundo, California, Hermeus develops hypersonic aircraft technologies focused on high-Mach unmanned military jets. The company aims to create the fastest aircraft for the American warfighter, leveraging advanced propulsion and aerospace engineering. Its business model centers on defense contracts and funding rounds, having raised over $500 million total, including a $350 million Series C round comprising equity and debt financing, validating its $1 billion valuation as a defense deep-tech unicorn.

Products

  • Mission Plane — A multipurpose high-Mach aircraft platform built for uncrewed, autonomous military operations with high-speed payload delivery.
    Customer sectors: military, defense contractors, government aerospace

Company Details

Sector Deep Tech
Category Defense Platforms & Autonomy
Stage Series C+
Total Funding $500.0M
Employees 51-200
Last Funded April 7, 2026
Last Round $350.0M
Valuation $1.0B

Market research & competitive positioning

Source-backed TAM / SAM / SOM sizing, displacement analysis, and an interactive peer positioning map for Hermeus — available to members.

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