Unclassified // open-source data on US defense tech // 14 NOV 2026
Counter-Drone sector
HQ city varies by source (San Francisco or Hawthorne) company in San Francisco, California

Thermopylae Aerospace

Early-stage developer of low-cost interceptor drones and autonomous air defense systems, founded by a Ukrainian engineer.

M-SHORAD air defense system on Germany's Baltic coast. Photo: U.S. Army photo by Maj. Robert Fellingham, Public domain (PD-USGov-Military-Army).

Latest round$1.6MPre-seed, Nov 2025
Total raised~$1.6M~$1.6M

Funding history

DateRoundAmount
Nov 2025Pre-seed$1.6M

Why it matters

Pre-seed raised to develop drone interceptors initially aimed at Ukrainian forces.

Is Thermopylae Aerospace publicly traded?

Thermopylae Aerospace is privately held as of November 14, 2026: there is no ticker and no announced IPO. Shares are not available on public exchanges.

Information only, not investment advice.

Some figures rest on a single report. Treat them as indicative.Last verified November 14, 2026

Thermopylae Aerospace: key questions

What does Thermopylae Aerospace do?

Early-stage developer of low-cost interceptor drones and autonomous air defense systems, founded by a Ukrainian engineer.

Where is Thermopylae Aerospace based?

Thermopylae Aerospace is headquartered in San Francisco, California. It was founded in 2025.

How much funding has Thermopylae Aerospace raised?

Total funding is ~$1.6M, based on announced and reported rounds. Latest round: Pre-seed, $1.6M, Nov 2025.

Who are Thermopylae Aerospace's investors?

Notable investors include Norgard Capital, Naval Ravikant, UA1 VC.

Is Thermopylae Aerospace publicly traded?

Thermopylae Aerospace is privately held as of November 14, 2026: there is no ticker and no announced IPO. Shares are not available on public exchanges.

Can you buy Thermopylae Aerospace stock?

Not on a public exchange: Thermopylae Aerospace is a private company. Shares of private companies change hands only in private transactions open to accredited investors, when the company allows it. This is not investment advice.

Sources

  1. vcbacked.co/company/thermopylae-aerospace
  2. seedtable.com/companies/thermopylae-aerospace/funding-rounds/pre-seed-2025-11

Figures come from company announcements, government sources and press reports. Spot an error? Send a correction. Nothing here is investment advice.