Axios Pro · Jul 2026
Reported that Astro Mechanica was raising a $250M Series B and considering turboelectric engines for data-center power; the round was not verified as closed.
Supersonics for the new Jet Age
Public company, workplace, funding, and market signals
Updated Aug 2, 2026
Astro Mechanica is a San Francisco aerospace startup, founded in 2021, building vertically integrated high-speed flight systems—engines, airframes, and flight systems—for military, orbital-launch, cargo, and eventual commercial supersonic use. Its stated mission is to make high-speed flight more efficient, accessible, and sustainable [Astro Mechanica; United Airlines Ventures].
Primary product
Duality™: a hybrid-electric/electric combined-cycle adaptive jet engine designed to operate efficiently from takeoff through Mach 3+, with turbofan-like, turbojet-like, and ramjet-like operating modes [Y Combinator; United Airlines Ventures].
Founded
2021
Headquarters
San Francisco, California, United States
Team size
40–52; LinkedIn/company data reported 42 in June/July 2026, while Y Combinator reports 52
Work style
Onsite
Industry
42 jobs at Astro Mechanica
Aviation & Aerospace
Sub-industry
Supersonic aircraft, adaptive propulsion, aerospace/defense technology
Offices
Business model
Stage
Series A / growth-stage aerospace startup; reportedly raising a $250M Series B as of 2026-07-15, not confirmed closed
Total raised
$54.7M
Latest round
Venture Round / United Airlines Ventures investment · Aug 2025
Venture Round / United Airlines Ventures investment
Aug 2025 · United Airlines Ventures
Apr 2025 · Andreessen Horowitz, Lowercarbon Capital, and Giant Step Capital (co-led/reported)
Feb 2024 · Y Combinator
Feb 2024 · Y Combinator
Leadership
CEO & Founder
Chief Operating Officer
VP of Engineering; previously Director of Electrical & Software Engineering
Richard Brisbin
Vice President, Defense Systems; CEO, Astro Mechanica Federal Corporation
Kevin Hobson
General Counsel
Patrick McGuire
Director of Propulsion
Michael Keefe
Mission Systems Lead
Andrew Van Timmeren
Senior Vice President of Revenue (joined June 2026)
The company describes itself as a flat engineering organization of passionate engineers and generalists with specialist depth. It emphasizes moving fast, pragmatic execution, continuous design/build/test, and engineering excellence over hierarchy [Astro Mechanica Careers]. A job posting says in-office work five days per week is considered essential for collaboration.
Work style
Onsite
Compensation
Public job-posting signals include approximately $135,000–$170,000 annual base salary for a Mechanical Systems Design Engineer, plus equity/stock options and benefits. Sponsorship evidence is conflicting or not clearly attributable to Astro Mechanica, so no definitive sponsorship claim is made.
Benefits
Pricing
Not publicly standardized. Management has indicated a Mach-plus engine could cost in the low single-digit millions and an aircraft using it roughly $15M–$50M depending on capability; these are indicative target economics, not a published price list.
Differentiators
Technology
Customers
Competitors
Axios Pro · Jul 2026
Reported that Astro Mechanica was raising a $250M Series B and considering turboelectric engines for data-center power; the round was not verified as closed.
Aviation Week · Jan 2026
Reported planned high-altitude/high-speed ground testing, a 2027 testbed-aircraft flight, and a later development phase.
ePlane AI · Dec 2025
Covers a partnership with Helix to develop the Duality hybrid supersonic engine and discusses technical details and prototype progress.
PR Newswire / United Airlines Ventures · Aug 2025
United Airlines Ventures announced an investment in Astro Mechanica, describing the company’s adaptive propulsion concept and its strategic applications.
United Airlines Ventures / PR Newswire · Aug 2025
Announced UAV’s investment and described Duality’s hybrid-electric architecture and military, orbital-launch, cargo, and commercial applications.