Company
Rhea Space Activity (RSA)
Rhea Space Activity (RSA) is an astrophysics start-up company in the science and technology industry.
Also known as Rhea Space Activity, Rhea Space Activity, Inc.
- Status
- Operatingas of 2026-09-18
- Business model
- Government
- Headquarters
- Washington, DC, United States
- Founded
- 2018
- Customers
- governments and defense forces
- Legal name
- Rhea Space Activity, Inc.
- rheaspaceactivity.com (opens in a new tab)
- LinkedIn (opens in a new tab)
- Press page (opens in a new tab)
- Careers (opens in a new tab)
Claim, correct or request removal
Record updated 18 September 2026
About
Rhea Space Activity is a developer of astrophysics technology designed to support national security objectives. We develop various technologies in the fields of infrared satellites, directed energy, artificial intelligence, astroparticle physics, small satellites, autonomous underwater vehicles, and many more, enabling governments and defense forces to fulfill their security objectives.
Funding snapshot
- Total raised
- $6MSum of rounds, as of 2026-09-18Source (opens in a new tab)
- Latest round
- Series A, $6M2026-04-16
Funding rounds
- Series A
- $6M2026-04-16, Company stated
Products
- Other
- AutoNav
Loading relationship preview