New award of task order 25: lessons learned from managing post closure criticality issues in a license application for a nuclear SNF/HLW repository
Ended Awarded Last action
- Contract number
- 89243226FNE400215
- Awardee
-
RSI Nuclear, LLC UEI NB31NPVJHRZ5
- Awarding agency
-
National Nuclear Security Administration
Department of Energy
- Obligated
- $148,390
Award facts
- Contract value 100% obligated
- $148,390.00 Current and potential, with all options
- Completion date 100% complete
- Current and potential, with all options
- Contracting staff
- Funding agency
- Office of Nuclear Energy Department of Energy
- NAICS code
- 541330 Engineering Services
- Set-aside
- Total Small Business
- Competition
- Full and Open Competition after exclusion of sources · 1 offer Multiple Award, Fair Opportunity
- Pricing
- Time and Materials
- Place of performance
- Albuquerque, NM 87110, USA
Award details come from SAM.gov/FPDS.
Transactions
| Action | Obligated | Date |
|---|---|---|
| Other Administrative Action | $0 | |
| Original award | $148,390 |
About this award
The U.S. Department of Energy's Office of Nuclear Energy awarded a modification to Task Order 25 to Sigma Science Inc., a small disadvantaged business headquartered in Albuquerque, New Mexico, on December 16, 2025. The task order, valued at $148,390, extends the deliverable due date for lessons learned analysis related to managing post-closure criticality issues in a nuclear spent nuclear fuel and high-level waste repository license application. The work is performed under the Nuclear Industry Advisory and Assistance Services Government-Wide Acquisition Contract, a $49 million total small business set-aside vehicle awarded by DOE's Office of Nuclear Energy through April 30, 2027. The ultimate completion date for this task order is May 29, 2026, and work is being performed in Albuquerque, New Mexico on a time and materials basis.
Sigma Science Inc., an SBA-certified 8(a) program participant and Hispanic American-owned business, specializes in providing technical advisory and engineering services to federal agencies in nuclear energy and national security sectors. The company has established a track record delivering complex nuclear technical support, with over $160 million in contract value since 2021, including expertise in spent fuel repository licensing, nuclear safety analysis, and regulatory compliance. This task order represents one of multiple delivery orders the company has received under the NIASS GWAC, supporting DOE's mission to advance nuclear energy initiatives and ensure compliance with regulatory and safety requirements for nuclear waste management programs.
Quick answers
Who was awarded contract 89243226FNE400215?
89243226FNE400215 was awarded to RSI Nuclear, LLC by National Nuclear Security Administration (Department of Energy) on December 16, 2025.
How much is contract 89243226FNE400215 worth?
The government has obligated $148,390 on 89243226FNE400215.
Which agency awarded contract 89243226FNE400215?
National Nuclear Security Administration (Department of Energy) awarded 89243226FNE400215, with funding from Office of Nuclear Energy (Department of Energy).
Is contract 89243226FNE400215 an order under another contract?
Yes. 89243226FNE400215 is a delivery order under 89243222DNE000002, a government wide acquisition contract (GWAC).
Was contract 89243226FNE400215 competed?
The extent of competition for 89243226FNE400215 was full and open competition after exclusion of sources. The government received 1 offer. It was set aside: Total Small Business.
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