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Berkeley, CA, USA · Public (FISN) · deepfission.com
Pressurized-water reactor placed a mile down a borehole; DOE Reactor Pilot Program
Open roles
2
counted 2026-11-09
Federal awards
—
none found
Last private raise
$80M
Form D · 2026-02-05
SEC filings
42
latest 2026-11-04
Coming up
POLICYRussian uranium import ban: waiver period
DOE can grant waivers for Russian enriched uranium until Jan 1, 2028; after that the ban is absolute. Affects Fission.
+ THESISPOLICY45Y / 48E: all other clean power and storage
Full credit for projects beginning construction through 2033; 75% for 2034 starts, 50% for 2035, none from 2036. Affects Fission.
+ THESISOFFTAKE · DEEP FISSION PARSONS PILOTMaster energy purchase agreement with the Great Plains Development Authority for a 150 MW commercial project
Great Plains Industrial Park, Parsons, KS
ans.org →+ THESISPOLICYDOE Energy Dominance Financing: Constellation and Alliant
Up to $5B conditional loan to Constellation for nuclear uprates (~1.1 GW) and a closed $5.1B loan to Alliant for gas, storage and upgrades (~2.6 GW). The office (formerly the Loan Programs Office) has over $300B of authority. Affects Fission.
+ THESISCONTRACTDeep Fission signs Kansas power agreement following market woes
ANS Nuclear Newswire: Last week, reactor developer Deep Fission announced that it had entered into a master energy purchase agreement with the Great Plains Development Authority in Kansas. This new milestone for the Department of Energy–backed start-up comes as it weathers the fallout from a recent re…
ans.org →+ THESISPOLICYDOE adds helium to the Critical Material List
DOE added helium to its Critical Material List, citing semiconductors, natural-gas leak testing and quantum computing. Helium also cools fusion magnets and high-temperature gas reactors. Affects Fission.
+ THESISPOLICYDOE Energy Dominance Financing: 10 large reactors
Up to $17.5B in conditional loans for ten Westinghouse AP1000 reactors at five sites; partners must commit $1B equity per project. Utility selections expected in the second half of 2026. Affects Fission.
+ THESISPROJECT · DEEP FISSION PARSONS PILOTGround broken at the Great Plains Industrial Park
Great Plains Industrial Park, Parsons, KS
powermag.com →+ THESISHow it works
Today's fleet and most near-term SMRs. Uranium fuel heats ordinary water under high pressure; the steam spins a turbine and the water is cooled and pumped back.
OPEN IN 3D →Read from SEC 8-Ks (bankruptcy, default, delisting, restatement, impairment, restructuring), cash runway in annual reports, Form D raises and the 30-day hiring trend. A prompt to look closer, not a credit rating.
Sources: company job boards (daily), SEC EDGAR, USAspending.gov, and the reviewed technology spreadsheets. Public records only cover US entities, so foreign companies and private firms that don't file will show gaps.
2026-11-052026-11-09
By team
By location
| Fiscal year end | 2022-12 | 2023-12 | 2024-12 | 2025-12 |
|---|---|---|---|---|
| Net income | −$49K | −$48K | −$5.7M | −$61M |
| Cash | $69 | — | $6.7M | $24M |
| R&D spend | — | — | $661K | $6.6M |
Companies file a Form D within 15 days of selling shares privately. “Sold” is the amount raised so far in that offering; amended notices (D/A) update earlier ones.
| First sale | Notice | Offered | Sold |
|---|---|---|---|
| 2026-02-05 | D · filed 2026-02-18 | $80M | $80M |
| 2025-09-05 | D · filed 2025-09-24 | $120M | $0 |
| 2025-09-05 | D · filed 2025-09-23 | $32M | $30M |
No federal grants, contracts or loans found on USAspending.gov under this company's US entity name.
STEP 4/6 · AT RISK HALEU is the bottleneckMost advanced designs need HALEU (5–20% enriched), with no commercial US supply at scale yet.
STEP 4/4 · WATCH Office relaunched as Energy Dominance FinancingLending shifts toward nuclear and utility expansions (AP1000 offers, Constellation uprates).
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Policy that applies
No minerals, policies or partners linked yet. Add them in the review spreadsheet.
2026-10-28 · contract
Deep Fission signs Kansas power agreement following market woesANS Nuclear Newswire: Last week, reactor developer Deep Fission announced that it had entered into a master energy purchase agreement with the Great Plains Development Authority in Kansas. This new milestone for the Department of Energy–backed start-up comes as it weathers the fallout from a recent re…