Contract DESC0004645

Ucor Llc · Department Of Energy · September 30, 2020

Cost Plus Award FeeFull & Open CompetitionNAICS 562910

Ucor Llc was awarded a federal contract by Department Of Energy on September 30, 2020 for $22.90 million of work in remediation services. Performance is in Oak Ridge, TN. It was awarded under full and open competition. The contract has been modified 4 times since the base award It uses cost-plus contract pricing. The most recent modification was on December 29, 2025. If all options are exercised, the contract could reach $4.18 billion.

Obligated to date
$22.90M
$22,899,615
Current value
$4.18B
Potential value
$4.18B
if all options exercised
Modifications
4
Latest December 29, 2025

Contract details

PIID
DESC0004645
Award type
Definitive Contract
Pricing
Cost Plus Award Fee
Set-aside
No Set Aside Used.
Competition
Full And Open Competition
NAICS
562910 · Remediation Services
Product / service
Other Environmental Services
Place of performance
Oak Ridge, TN
First action
September 30, 2020
Latest action
December 29, 2025

Description

THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDING IN THE AMOUNT OF $6,892,715.20

Modification timeline

  • December 29, 2025
    Mod 484 · Funding Only Action
    $3.90B
  • September 30, 2021
    Mod 452 · Funding Only Action
    DECONTAMINATION & DECOMMISSIONING PROJECT FOR THE EAST TENNESSEE TECHNOLOGY PARK.
    $3.74B
  • September 28, 2021
    Mod 450 · Funding Only Action
    DECONTAMINATION & DECOMMISSIONING PROJECT FOR THE EAST TENNESSEE TECHNOLOGY PARK.
    $3.74B
  • August 31, 2021
    Mod 446 · Funding Only Action
    DECONTAMINATION & DECOMMISSIONING PROJECT FOR THE EAST TENNESSEE TECHNOLOGY PARK.
    $3.72B
  • September 30, 2020
    Mod 414 · Funding Only Action
    DECONTAMINATION&DECOMMISSIONING PROJECT FOR THE EAST TENNESSEE TECHNOLOGY PARK.
    $3.30B

Similar contracts

RecipientAgencyDateObligated
Savannah River Mission Completion, LlcDepartment Of EnergyApril 1, 2026$2.12B
Navarro Research And Engineering, Inc.Department Of EnergyApril 1, 2026$44.28M
Enterprise Technical Assistance Services IncDepartment Of EnergyApril 1, 2026$36.85M
Idaho Environmental Coalition LlcDepartment Of EnergyApril 1, 2026$887.50M
Aptim Federal Services, LlcDepartment Of EnergyMarch 31, 2026$69.27M
Catawba-Tea, LlcDepartment Of EnergyMarch 31, 2026$2.40M

Top contractors in NAICS 562910

Lifetime obligated dollars across all federal contracts in this NAICS code.

#ContractorContractsObligated
1Savannah River Mission Completion, Llc7$494.33M
2Idaho Environmental Coalition Llc2$244.26M
3Central Plateau Cleanup Company, Llc5$222.92M
4United Cleanup Oak Ridge Llc2$217.55M
5Southern Ohio Cleanup Company Llc3$145.12M
6Newport News Nuclear Bwxt-Los Alamos Llc6$80.26M
7Four Rivers Nuclear Partnership Llc1$77.95M
8Kemron/Arrowhead Jv, Llc6$64.94M
9Hanford Laboratory Management And Integration Llc1$59.90M
10Rsi Entech, Llc7$57.30M

Track this on BesaGov

Get a free weekly email when this changes — new awards, new sub-awards, new opportunities. No login required.

✓ You’re on the list. We’ll never spam you.

Helpful guides

Continue learning

See all guides →
More on BesaGov

Keep researching

Track this contract, set alerts on similar opportunities, and build proposal pipelines on BesaGov.
Sign up free

Frequently asked questions

What is contract DESC0004645?

Contract DESC0004645 is a federal contract awarded to Ucor Llc by Department Of Energy on September 30, 2020 for $22.90 million of work classified under REMEDIATION SERVICES. It has been modified 4 times since the base award.

Who won contract DESC0004645?

Ucor Llc won contract DESC0004645 from Department Of Energy.

How much is contract DESC0004645 worth?

Contract DESC0004645 has obligated $22.90 million to date, with a total potential value of $4.18 billion if all options are exercised.