Draft:Apollo Atomics
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|  |
| Type | Private |
|---|---|
| Industry | Nuclear power |
| Founded | 2024 |
| Founders | Assil Halimi Drew Walker |
| Headquarters | , United States |
| Key people | Assil Halimi (CEO) Drew Walker (COO) |
| Products | Compact pressurized water reactors |
| Website | apolloatomics |
Apollo Atomics is an American nuclear-energy startup company headquartered in Cambridge, Massachusetts, that is developing small, factory-manufactured pressurized water reactors (PWRs). The company, which grew out of reactor research at the Massachusetts Institute of Technology (MIT), says its reactors are designed to be assembled in a factory, shipped by truck, and installed faster than reactors built through conventional on-site construction.[1][2]
History
[edit]Apollo Atomics was founded in 2024 by Assil Halimi, who holds a PhD in nuclear engineering from MIT, and Drew Walker, who had previously founded an electric-boat company and held operations roles at an electric-truck manufacturer and in the White House.[3][4]
The company was part of Y Combinator's Spring 2026 (P26) cohort.[1][5]
In August 2026, Apollo Atomics announced a $31 million seed financing round (described by some outlets as $26 million, split between $21 million in equity and $5 million in debt), led by the venture firm FCVC, with participation from Y Combinator, TeleSoft Partners, Alumni Ventures, Robinhood Ventures, Nucleation Capital, Pelion VC, Duke Capital Partners, and other investors.[1][4][2]
Technology
[edit]Apollo Atomics' reactors are pressurized water reactors that use commercial-grade, low-enriched nuclear fuel and are intended to rely on existing nuclear fuel and component supply chains.[2] The company's stated central innovation is a redesigned steam generator — the component that transfers heat from the reactor to produce steam for electricity generation — built as a compact metal block with narrow internal channels, which the company says allows a human-sized steam generator to replace units that are normally several stories tall.[1] Apollo Atomics states this design increases power density by roughly an order of magnitude and reduces the overall physical footprint of a reactor system by approximately 40 times compared with conventional plants.[1][2]
The company has said it built and tested a small demonstration reactor system at MIT's Department of Nuclear Science and Engineering.[2] It has announced plans for three commercial reactor sizes — designated A-10, A-50 and A-300, generating 10, 50 and 300 megawatts of electricity, respectively — aimed at data centers, industrial facilities, and utilities.[2][6]
Regulatory status
[edit]As of September 2026, Apollo Atomics is engaged in pre-application activities with the U.S. Nuclear Regulatory Commission (NRC) related to a future construction permit application under 10 CFR Part 50, an engagement the NRC lists as having begun in April 2026.[7] The company has publicly stated it is seeking NRC authorization by the end of 2026, with a goal of commercial deployment by 2028.[2]
See also
[edit]References
[edit]- 1 2 3 4 5 "Exclusive: Apollo Atomics wants to make nuclear power cheaper by shrinking an overlooked part". TechCrunch. 2026-08-20. Retrieved 2026-09-18.
- 1 2 3 4 5 6 7 "$31M boosts compact nuclear reactor with 40-fold smaller footprint". Interesting Engineering. 2026-08-20. Retrieved 2026-09-18.
- ↑ "Apollo Atomics — venture-backed company profile". Dealroom. Retrieved 2026-09-18.
- 1 2 "Apollo Atomics Secures $31 Million to Turn Proven Reactor Technology into a Factory-Built Product" (Press release). PR Newswire. 2026-08-20. Retrieved 2026-09-18.
- ↑ "Apollo Atomics Secures $31.0M". Signalbase. 2026-08-20. Retrieved 2026-09-18.
- ↑ "MIT spinoff Apollo Atomics raises $31M to build factory-made nuclear reactors for AI data centers". Tech Startups. 2026-08-20. Retrieved 2026-09-18.
- ↑ "Apollo Atomics". U.S. Nuclear Regulatory Commission. Retrieved 2026-09-18.
External links
[edit]Category:Nuclear technology companies of the United States Category:Companies based in Cambridge, Massachusetts Category:Companies established in 2024 Category:Y Combinator companies
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