Hermeus
Builds unmanned, reusable hypersonic aircraft and engines for the US military.
On the record
Checkpoint: Targeted Mach 2 test flight of Quarterhorse Mk 2.1/2.2
The call
Hermeus has real contracts, real flights, and real money, but the Mach 5 aircraft is years away and Stratolaunch is already flying hypersonic hardware.
Hermeus is a startup building very fast unmanned planes that fly at Mach 5 (five times the speed of sound) for the U.S. military. The company has already flown test versions and won a $219 million contract, which is real proof they can execute. However, other well-funded startups like Stratolaunch and Anduril are building similar planes and competing for the same pool of military money, so Hermeus has not yet locked in customers the way an older defense contractor would. The one thing that matters most is whether Hermeus can turn its test contract into a full production order within the next year and a half, which would prove the military actually plans to buy many of these planes instead of just a handful of prototypes.
Why
01
AI pressure: None apparent. Hypersonic airframes and propulsion are physics and materials problems; no AI model or agent replaces that work today. Could AI do the core job? Unlikely.
02
Bigger players: Stratolaunch (Talon-A with Ursa Major's Hadley engine). Stratolaunch has already flown ten hypersonic test flights with vehicle recovery, ahead of Hermeus on flight cadence. Could a giant copy it? Probably.
03
What protects it. FAA-certified flight test program, a working RTX engine partnership, and a live $219M DIU contract give it real, funded runway.
What would change this call
Hermeus attempts Mach 2 flight by end of 2026 as targeted. On-time Mach 2 flight would show test cadence is keeping pace with Stratolaunch's lead.
DoD or Army awards a hypersonic program of record to Stratolaunch, Anduril, or Castelion first. Would show Hermeus is losing the budget race despite its DIU contract.
Hermeus converts DIU/Vector contract work into a production program of record within 18 months. Would show Hermeus is moving from R&D funding to a durable revenue moat.
DoD or Army awards a hypersonic program of record to Stratolaunch, Anduril, or Castelion first. Would show Hermeus is losing the budget race despite its DIU contract.
Hermeus converts DIU/Vector contract work into a production program of record within 18 months. Would show Hermeus is moving from R&D funding to a durable revenue moat.
Key numbers
- $219M DIU contract ceiling after May 2026 boost
- $1B valuation on $350M Series C raise
- Mach 1.21 first unmanned supersonic flight
Named risks
- No program-of-record acquisition contract yet; revenue depends on R&D-stage DIU/Air Force money.
- Peer Stratolaunch already flying hypersonic with recovery, undercutting Hermeus's technical lead.
- CEO and CTO transitions occurred June-July 2026 during highest-tempo flight test period.
- Flight-test failure inherent to rapid-prototyping approach, acknowledged by founder AJ Piplica.
- DoD hypersonic weapons budget being actively courted toward Anduril, Castelion, Ursa Major.
Rivals, as read in July 2026
| Rival | Direction | Evidence |
|---|---|---|
| Stratolaunch | losing to | Talon-A logged 10 hypersonic flights with recovery by 2026-04-17, ahead of Hermeus's Mach 1.21 flight on 2026-05-26 |
| Anduril | contesting | Named by US Army as potential hypersonic weapons supplier 2026-07-14, competing for same DoD hypersonic budget |
| Ursa Major | contesting | Engine supplier to Stratolaunch's Talon-A and named Army hypersonic supplier candidate, 2026-07-14 |
| Castelion | contesting | Named alongside Anduril and Ursa Major as Army hypersonic supplier candidate, 2026-07-14 |
| RTX/legacy primes | gaining on | Hermeus adopted RTX's F100 turbofan for Mk 2.1 and took RTX Ventures investment in its 2026-04-07 Series C, deepening ties rather than displacing RTX |
Questions people ask
- Is Hermeus profitable in 2026?
- No. Hermeus discloses no audited revenue; income comes from government R&D contracts like the $219M DIU award (modified May 28, 2026) rather than product sales, so profitability cannot be confirmed as of July 2026.
- Who owns Hermeus?
- Hermeus is privately held and venture-backed, reaching a $1 billion valuation after a $350M Series C ($200M equity, $150M debt) closed April 7, 2026, led by Khosla Ventures with Founders Fund, RTX Ventures, and In-Q-Tel as investors.
- Could AI replace Hermeus's engineers?
- Unlikely soon. Hermeus's value is physical hardware: flight-tested Quarterhorse jets, FAA airworthiness certification (March 19, 2026), and engine integration with RTX's F100 turbofan, work AI assists on autonomy software but cannot substitute for.
- Who is Hermeus's biggest competitor?
- Stratolaunch is the closest peer; its Talon-A vehicle, powered by Ursa Major's Hadley engine, had logged 10 hypersonic flights with recovery as of April 17, 2026, ahead of Hermeus's Mach 1.21 unmanned supersonic flight on May 26, 2026.
- Has Hermeus had layoffs?
- No layoffs reported. When Hermeus moved its HQ from Atlanta to El Segundo, California in April 2026, it explicitly retained the roughly 175-person Atlanta production team while planning to grow El Segundo past 200 employees within a year.
- When will Hermeus fly at Mach 5?
- Not yet scheduled. As of July 24, 2026, Hermeus targets Mach 2 by end of 2026 and Mach 3 in H1 2027 using its Chimera turbine-based combined-cycle engine; sustained Mach 5 remains a longer-term roadmap item.
Timeline
- 2026-07-20Steve Furger appointed CTO to accelerate high-Mach aircraft development
- 2026-07-14US Army names Anduril, Castelion, Ursa Major as hypersonic missile supplier candidates
- 2026-07-08LA Times lists Hermeus with 96 employees in Southern California
- 2026-06-01Zach Shore becomes CEO; founder AJ Piplica moves to Executive Chairman
- 2026-05-28DIU contract expanded by $159M to $219M total ceiling
- 2026-05-26Hermeus flies Quarterhorse Mk 2.1 unmanned at Mach 1.21, a first for private industry
- 2026-04-17Rival Stratolaunch's Talon-A reported 10 hypersonic flights with recovery via Ursa Major engine
- 2026-04-07Hermeus closes $350M Series C, reaches $1B valuation, relocates HQ to El Segundo
- 2026-03-19FAA grants Special Airworthiness Certificate for Quarterhorse Mk 2.1
- 2021-08-05US Air Force awards Hermeus $60M Vector Initiative contract
Revision history
24 July 2026
First assessed. Losing its protection. The text above is fixed as of this date and is not edited afterwards.
In the same band
Sources
- Hypersonic aircraft company moves headquarters from Atlanta to El Segundo (2026-04-07)
- Hermeus Reaches $1 Billion Valuation with $350 Million Raise (2026-04-07)
- Hermeus Achieves Its First Unmanned Supersonic Flight (2026-05-26)
- DIU ups Hermeus contract for high-speed drone (2026-05-28)
- Air Force awards contract to Hermeus (2021-08-05)
- Hermeus receives experimental certification for Quarterhorse Mk 2.1 (2026-03-19)
- Hermeus raises $350M to build unmanned hypersonic fighters (2026-04-07)
- Hermeus Announces Executive Leadership Transition (2026-05-11)
- Hermeus Appoints Zachary Shore as President and Steve Furger as CTO (2026-07-20)
- Peter Thiel-backed Hermeus hits supersonic speed in Quarterhorse test (2026-07-24)
- Hypersonic plane startup Hermeus moves HQ from Atlanta to California (2026-04-07)
- #26 Aerospace & Defense Company (2026-07-08)