A
Apollo Generators
Radioisotope power systems for seabed applications
About Apollo Generators
Apollo Generators is a deep-tech startup developing autonomous power systems designed to operate in some of the most inaccessible environments on Earth and beyond, including the deep seabed, lunar surfaces, and eventually deep space. The company's core technology is a radioisotope power system (RPS) that converts heat directly into electricity, the same class of technology historically used to power NASA's long-duration space missions, now re-engineered for underwater and other extreme deployments. Apollo's systems are built to deliver over 1kW of continuous electrical output (from 4kW+ of thermal power) at a conversion efficiency above 25%, with an operational lifetime exceeding 20 years without maintenance or external servicing.
The company's flagship application targets submarine fiber-optic infrastructure: roughly 1.5 million kilometers of undersea cables currently carry the vast majority of the world's internet traffic, and Apollo's power units are designed to integrate directly into seabed repeaters, potentially unlocking several petabits per second of additional cable capacity by removing power as a bottleneck. A second use case focuses on subsea intelligence, surveillance, and reconnaissance (ISR): Apollo's systems can support long-duration acoustic and environmental sensor networks on the ocean floor without reliance on shore-based power or cabling, and can also enable onboard data processing and inductive charging for autonomous underwater vehicles (AUVs).
Longer term, Apollo has stated ambitions to become the first company to deploy the same core power technology on both the seabed and the lunar surface, positioning itself as an infrastructure layer for environments where hardware failure is costly and physical repair is effectively impossible. The company holds a pending patent on its technology, is backed by outside investors, and is currently in a hiring phase as it builds out its team. Apollo Generators is privately held and does not appear to have disclosed funding amounts, investor names, or founding team details publicly on its website.
Source: Dealroom company dataAt a glance
- Status
- Operational
- Founded
- 2025
- Headquarters
- France
- Employees
- 26
- Open positions
- None listed
- Dealroom signal
- 75.9/100
- Industry
- Energy
- Sector
- Energy, Space Utilities, Blue Economy, Energy and Greentech, Observatoire Deeptech, Lunar, observatoire greentech, observatoire industrial tech
- Business model
- Manufacturing
- Client focus
- b2b
Knowledge graph
More headlines
Growth signals
Latest recorded traffic for Apollo Generators is 5.2K monthly website visits.
Similar companies
Company identity and context are open; selected comparison metrics preview what is available on the platform.
Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Other known investors1 additional known investor
Leblon Capital
Source: Dealroom Talent Intelligence.
Global footprint
Market sentiment
An AI-synthesised read of the highest-engagement posts about Apollo Generators on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
See Apollo Generators’s full profile on Dealroom
Request a free trial to see the complete deal history, financials, people graph and growth signals.
Takes under a minute. Already use Dealroom? Log in.







