Contractor directory
UEI NB31NPVJHRZ5 · CAGE 4F4W2

RSI Nuclear, LLC

RSI Nuclear, LLC received $33.7M in federal prime contract obligations in the 12 months ending Oct 5, 2026, up 87.1% from $18.0M the year before, and $109.8M since FY2022. Its largest customer is the Department of Energy.

See 6 contracts ending in the next 18 months ↓
Obligations, latest 12 months
$33.7M
up 87.1% vs. $18.0M
Since FY2022
$109.8M
47 awards
Awards with activity
26
Latest 12 months
Most recent action
Sep 30, 2026
First seen Oct 1, 2021

Contractor details

Unique Entity ID (UEI)
NB31NPVJHRZ5
CAGE code
4F4W2
Headquarters
Albuquerque, NM
Business size
Small Business
Socioeconomic status
8(a)
Parent company
Sigma Science, Inc (UEI CJGWGY1VRGE5)

As recorded on this UEI's most recent prime contract action in USAspending.gov. Confirm current registration and certifications in SAM.gov.

Obligations by fiscal year

Net prime contract obligations by federal fiscal year.

FY2022
$15.5M
FY2023
$20.2M
FY2024
$22.2M
FY2025
$18.0M
FY2026
$33.7M

Markets where it ranks top 10

Agency and NAICS markets where this UEI is one of the ten largest primes in the latest 12 months.

Top agencies

Funding agencies ranked by obligations since FY2022.

Funding agencyLatest 12 moSince FY2022
Department of Energy$33.7M$108.3M
Department of Defense$0$1.4M

Top NAICS codes

Industry codes agencies recorded on this contractor's awards, since FY2022.

NAICSIndustryLatest 12 moSince FY2022
541330Engineering Services$33.7M$108.4M
541690Other Scientific and Technical Consulting Services$0$1.4M

What it sells

Product and service codes (PSC) on this contractor's awards, since FY2022.

PSCDescriptionSince FY2022
R499Support- professional: Other$50.1M
R408Support- professional: Program Management/Support$32.9M
R425Support- professional: Engineering/Technical$18.1M
R699Support- administrative: Other$8.6M

Contracts ending in the next 18 months

This contractor's largest awards whose current period of performance ends soon. Options and extensions often move these dates.

AwardAgencyObligatedCurrent end
89233122FNA400452
Department of Energy
Y-12 ACQUISITION AND PROJECT MANAGEMENT OFFICE (APMO) TECHNICAL & ADMINISTRATIVE SUPPORT SERVICES - NA-APM-1.3
$32.9MNov 13, 2026
89243226FNE400211
Department of Energy
TASK ORDER 27 - INDUSTRY ADVISORY PANEL PEER REVIEWS
$600KMar 3, 2027
89233122FNA400430
Department of Energy
OFFICE OF DEFENSE NUCLEAR NONPROLIFERATION RESEARCH AND DEVELOPMENT (NA-22) TECHNICAL AND ANALYTICAL SUPPORT SERVICES
$9.6MMar 31, 2027
89233126FNA400770
Department of Energy
SAVANNAH RIVER SITE TECHNICAL SUPPORT SERVICES
$10.4MJul 31, 2027
89243224FNE400148
Department of Energy
NUCLEAR INDUSTRY ADVISORY AND ASSISTANCE SERVICES(A&AS)SUPPORT UNDER GSA CONTRACT 47QRAA18D005Q -- TASK ORDER 17 - NUCLEAR SAFETY SPECIALIST SUPPORTING NE-5
$553KSep 25, 2027
89243224FEM400020
Department of Energy
NUCLEAR INDUSTRY ADVISORY AND ASSISTANCE SERVICES (A&AS) SUPPORT UNDER GSA CONTRACT 47QRAA18D005Q - TASK ORDER 18 ENVIRONMENTAL SUPPORT SUBJECT MATTER EXPERT
$634KSep 30, 2027

Recent awards

This contractor's newest prime contract awards, most recent first.

AwardAgencyObligatedAwarded
89233126FNA400770
Department of Energy
SAVANNAH RIVER SITE TECHNICAL SUPPORT SERVICES
$10.4MJul 29, 2026
89243226FNE400232
Department of Energy
RSI TASK ORDER 33 - SNF CANISTER INSPECTION PROTOCOL AND CSF IPT (PETERSON) CS - ALDEN ALLEN THIS TASK ORDER PROVIDES TECHNICAL SERVICES TO DEVELOP AND COMMENT ON CD-1 RELATED…
$136KMay 27, 2026
89243226FNE400225
Department of Energy
NEW AWARD OF TASK ORDER 26: SPENT NUCLEAR FUEL (SNF) SHIPPING RATE FEASIBILITY STUDY
$225KMar 5, 2026
89243226FNE400211
Department of Energy
TASK ORDER 27 - INDUSTRY ADVISORY PANEL PEER REVIEWS
$600KMar 4, 2026
89243226FNE400221
Department of Energy
TASK ORDER 32: NRC LICENSING AND SUPPORT FOR THE CONSOLIDATED STORAGE FACILITY (CSF) INTEGRATED PROJECT TEAM (IPT)
$136KFeb 18, 2026
89243226FNE400224
Department of Energy
TASK ORDER 31: REUSE/PURCHASE OF CASKS AND SUPPORT FOR THE CONSOLIDATED STORAGE FACILITY (CSF) INTEGRATED PROJECT TEAM (IPT)
$136KFeb 18, 2026
89243226FNE400218
Department of Energy
TASK ORDER 29: QUALITY ASSURANCE PROGRAM AND SUPPORT FOR THE CONSOLIDATED STORAGE FACILITY (CSF) INTEGRATED PROJECT TEAM (IPT)
$100KFeb 2, 2026
89243226FNE400219
Department of Energy
TASK ORDER 30: PELE NUCLEAR SAFETY SPECIALIST
$144KJan 21, 2026

Prime contracts (award types A–D) from USAspending.gov through Oct 5, 2026. Subcontracts are not included. Net obligations include deobligations and corrections.

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