LOADING…
LOADING…
Austin, TX, USA · Private · lastenergy.com
Modular light-water microreactor (PWR-20)
Open roles
25
counted 2026-11-09
Federal awards
—
none found
Last private raise
—
no Form D on file
SEC filings
—
not an SEC filer
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.
+ THESISCONTRACTAntares, Last Energy, and Radiant hit DOE authorization milestones
ANS Nuclear Newswire: The month of October saw three of the original Reactor Pilot Program companies hit a handful of milestones as each pursues Department of Energy authorization for the operation of various reactor projects. Both Last Energy and Radiant earned documented safety analyses (DSAs) for t…
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.
+ 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.
+ THESISREGULATORYDOE approves documented safety analysis for Texas A&M-RELLIS pilot reactor
The DOE approved the final documented safety analysis for the PWR-5 pilot, moving the project into DOE readiness review before startup authorization for criticality. The mid-2026 criticality target set in January 2026 has not been reported as met in the sources reviewed.
aol.ca →+ 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.
+ THESISREGULATORYDOE approves preliminary documented safety analysis for PWR-5 pilot
The Department of Energy approved the preliminary documented safety analysis for the PWR-5 pilot reactor at Texas A&M-RELLIS, a step toward final DOE authorization for fuel delivery and operation.
nucnet.org →+ THESISFUNDINGLast Energy closes oversubscribed $100M Series C led by Astera Institute
The round, announced in mid-December 2025, is meant to fully fund the PWR-5 DOE pilot and move the PWR-20 toward commercial production. Reported total raised after the round varies by source, so the profile's $140M figure was not changed.
interestingengineering.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 →No public filings, raises or hiring trend to read yet.
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.
2026-11-052026-11-09
By team
By location
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.
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).
Policy that applies
No minerals, policies or partners linked yet. Add them in the review spreadsheet.
2026-11-05 · Headquarters updated
Austin, TX, USAwas: Washington, DC, USA2026-11-02 · contract
Antares, Last Energy, and Radiant hit DOE authorization milestonesANS Nuclear Newswire: The month of October saw three of the original Reactor Pilot Program companies hit a handful of milestones as each pursues Department of Energy authorization for the operation of various reactor projects. Both Last Energy and Radiant earned documented safety analyses (DSAs) for t…2026-10-07 · regulatory
DOE approves documented safety analysis for Texas A&M-RELLIS pilot reactorThe DOE approved the final documented safety analysis for the PWR-5 pilot, moving the project into DOE readiness review before startup authorization for criticality. The mid-2026 criticality target set in January 2026 has not been reported as met in the sources reviewed.2026-05-05 · regulatory
DOE approves preliminary documented safety analysis for PWR-5 pilotThe Department of Energy approved the preliminary documented safety analysis for the PWR-5 pilot reactor at Texas A&M-RELLIS, a step toward final DOE authorization for fuel delivery and operation.2025-12-16 · funding
Last Energy closes oversubscribed $100M Series C led by Astera InstituteNot an SEC filer, or no US entity matched. Most private and foreign companies don't file.