Rhea Space Activity
rheaspaceactivity.com
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Products
People
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Financials
Funding and backers
Total raised
$6M
1 round on record
Latest round
$6M
Series A · Apr 2026 · 5 mo ago
Team
51-200
employees, estimated range
Backers
2
New Mexico Angels, Seraphim Space
The money's age
Fresh money
5 months since the last round · not hiring
Momentum
20/100
fresh money
Last sign of life
this month
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Apr 16
Raised a round Series A $6M
Sep 16, 2024
Launched Rhea Space Activity Launches Australian Subsidiary to Provide GPS-Denied Navigation to AUKUS Submarines · rheaspaceactivity.com
2018
Founded
Tractionpublic signals, read monthly
Web presence
top 7%
of 133.2M domains by links, Common Crawl
Funding rounds
| Round | Date | Amount | Investors | Source |
|---|---|---|---|---|
| Series A | Apr 2026 | $6M | — | rheaspaceactivity.com |
Backed byfrom the funds' portfolios and accelerator catalogs
New Mexico Angels 
Seraphim Space Similar startupsby what they do, their industry and backers
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Overview
Top of page ABOUT US RHEA SPACE ACTIVITY Founded in 2018, Rhea Space Activity (RSA) specializes in innovative solutions for secure communication and reliable navigation in challenging environments. The company is headquartered in Washington, DC, with subsidiaries in the United Kingdom and Australia.
News
Rhea Space Activity Raises $6M Series A to Deploy GPS-Resilient Deep Space Optical Navigation Software to U.S and Allied Military/Intelligence Customers
Boston Global, Iron Prairie Ventures, Abo Ventures, Blackbird Capital Group, andSpaceFund are among the backers of deep space optical navigation softwareWASHINGTON D.C., April 16, 2026 - Rhea Space Activity (RSA), a leader in deep space GPS-denied navigat
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Rhea Space Activity to Test Hypersonic GPS-Denied Navigation Payload on Varda W-6 Mission
Launch Will Test GPS-denied Navigation Module During Atmospheric Reentry WASHINGTON D.C., March 31, 2026 - Rhea Space Activity (RSA) is launching a hosted payload on Varda's W-6 Mission. Comprising two cameras and a flight computer, the unit will collect
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Rhea Space Activity Nets U.S. Space Force Contract to Enhance AutoNav for Sustained Space Maneuvers
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Rhea Space Activity Nets U.S. Space Force Contract to Enhance AutoNav for Sustained Space Maneuvers
VANGUARD Enables US Spacecraft to Perform Autonomous, GPS-Denied Rendezvous and Proximity Operations WASHINGTON D.C., January 8, 2026 - The U.S. Space Force has awarded Rhea Space Activity, Inc. (RSA) a contract to enhance its autonomous navigation softwa
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RSA's Brilliant Minds: Nick Hobar
"Houston, we have a problem," is not usually a phrase you want to hear when working with spaceships. But to Nick Hobar - an avid rock...
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Rhea Space Activity Developing Advanced Hazard Detection Technology for NASA's Planetary Exploration Missions
The innovative LED-based solution significantly reduces barriers to entry for commercial space companies WASHINGTON, September 24, 2024...
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Rhea Space Activity Launches Australian Subsidiary to Provide GPS-Denied Navigation to AUKUS Submarines
SYDNEY, September 17, 2024- Rhea Space Activity (RSA), a leader in autonomous navigation and quantum communication technology, announces...
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RSA's Brilliant Minds: Dr. Matthew Gorban
You may be familiar with electrons, protons, and neutrons…but have you met a Gorbon ? Dr. Matthew Gorban, actually spelled with an "a,"...
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Ensuring military resilience: The imperative of mandating alternative PNT solutions for spacecraft
The global importance of GPS to military operations and everyday civilian life is well documented, as is the significant vulnerability...
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Financials
Total raised
$6M
Latest round
Series A
Funding rounds
1
Funding rounds
| Round | Announced | Amount | |
|---|---|---|---|
| Series A | 2026 | $6M | Details |