Contract DEAC0506OR23177

Jefferson Science Associates, Llc · Department Of Energy · September 29, 2020

Cost Plus Award FeeFull & Open CompetitionNAICS 541710

Jefferson Science Associates, Llc was awarded a federal contract by Department Of Energy on September 29, 2020 for $310.06 million of work in research and development in the physical, engineering, and life sciences. Performance is in Newport News, VA. It was awarded under full and open competition. The contract has been modified 25 times since the base award It uses cost-plus contract pricing. The most recent modification was on March 30, 2026. If all options are exercised, the contract could reach $3.96 billion.

Obligated to date
$310.06M
$310,060,045
Current value
$3.56B
Potential value
$3.96B
if all options exercised
Modifications
25
Latest March 30, 2026

Contract details

PIID
DEAC0506OR23177
Award type
Definitive Contract
Pricing
Cost Plus Award Fee
Set-aside
No Set Aside Used.
Competition
Full And Open Competition
NAICS
541710 · Research And Development In The Physical, Engineering, And Life Sciences
Product / service
Oper Of Govt R&D Goco Facilities
Place of performance
Newport News, VA
First action
September 29, 2020
Latest action
March 30, 2026

Description

MANAGEMENT AND OPERATION OF THE THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY (APPROPRIATED FUNDS: -$5,181,387.76; NON-APPROPRIATED FUNDS: $0)

Modification timeline

  • March 30, 2026
    Mod 472 · Funding Only Action
    $3.29B
  • February 25, 2026
    Mod 471 · Funding Only Action
    MANAGEMENT AND OPERATION OF THE THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY (APPROPRIATED FUNDS: $19,473,597; NON-APPROPRIATED FUNDS: $150,000)
    $3.30B
  • February 2, 2026
    Mod 470 · Funding Only Action
    MANAGEMENT AND OPERATION OF THE THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY (APPROPRIATED FUNDS: -620,555.58; NON-APPROPRIATED FUNDS: $22,280.53)
    $3.28B
  • December 12, 2025
    Mod 469 · Funding Only Action
    MANAGEMENT AND OPERATION OF THE THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY (APPROPRIATED FUNDS: -$116.81; NON-APPROPRIATED FUNDS: $90,062)
    $3.28B
  • November 24, 2025
    Mod 468 · Funding Only Action
    MANAGEMENT AND OPERATION OF THE THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY (APPROPRIATED FUNDS: $89,521,503; NON-APPROPRIATED FUNDS: $0)
    $3.28B
  • November 10, 2025
    Mod 467 · Funding Only Action
    MANAGEMENT AND OPERATION OF THE THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY (APPROPRIATED FUNDS: $0; NON-APPROPRIATED FUNDS: $46,195)
    $3.19B
  • October 29, 2025
    Mod 466 · Funding Only Action
    MANAGEMENT AND OPERATION OF THE THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY (APPROPRIATED FUNDS: $2,880,770.43; NON-APPROPRIATED FUNDS: $0)
    $3.19B
  • October 24, 2025
    Mod 465 · Supplemental Agreement For Work Within Scope
    MANAGEMENT AND OPERATION OF THE THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY (APPROPRIATED FUNDS: $0; NON-APPROPRIATED FUNDS: $0)
    $3.18B
  • October 22, 2025
    Mod 464 · Funding Only Action
    MANAGEMENT AND OPERATION OF THE THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY (APPROPRIATED FUNDS: $7,964,000; NON-APPROPRIATED FUNDS: $0)
    $3.18B
  • October 10, 2025
    Mod 463 · Funding Only Action
    MANAGEMENT AND OPERATION OF THE THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY (APPROPRIATED FUNDS: $7,153,735; NON-APPROPRIATED FUNDS: $0)
    $3.18B

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

#ContractorContractsObligated
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Frequently asked questions

What is contract DEAC0506OR23177?

Contract DEAC0506OR23177 is a federal contract awarded to Jefferson Science Associates, Llc by Department Of Energy on September 29, 2020 for $310.06 million of work classified under RESEARCH AND DEVELOPMENT IN THE PHYSICAL, ENGINEERING, AND LIFE SCIENCES. It has been modified 25 times since the base award.

Who won contract DEAC0506OR23177?

Jefferson Science Associates, Llc won contract DEAC0506OR23177 from Department Of Energy.

How much is contract DEAC0506OR23177 worth?

Contract DEAC0506OR23177 has obligated $310.06 million to date, with a total potential value of $3.96 billion if all options are exercised.