Contract DEAC0506OR23177

Jefferson Science Associates, Llc · Department Of Energy · April 14, 2006

Cost Plus Award FeeFull & Open CompetitionNAICS 541710

Jefferson Science Associates, Llc was awarded a federal contract by Department Of Energy on April 14, 2006 for $3.25 billion 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 472 times since the base award It uses cost-plus contract pricing. The most recent modification was on April 17, 2026.

Obligated to date
$3.25B
$3,250,434,945
Current value
$3.52B
Potential value
$3.92B
if all options exercised
Modifications
472
Latest April 17, 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
April 14, 2006
Latest action
April 17, 2026

Description

MANAGEMENT AND OPERATION OF THE THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY (APPROPRIATED FUNDS: -$39,680,944.39; NON-APPROPRIATED FUNDS: $0)

Modification timeline

  • April 17, 2026
    Mod 473
    $-39.68M
  • March 30, 2026
    Mod 472
    MANAGEMENT AND OPERATION OF THE THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY (APPROPRIATED FUNDS: -$5,181,387.76; NON-APPROPRIATED FUNDS: $0)
    $-5.18M
  • February 25, 2026
    Mod 471
    MANAGEMENT AND OPERATION OF THE THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY (APPROPRIATED FUNDS: $19,473,597; NON-APPROPRIATED FUNDS: $150,000)
    $19.47M
  • February 2, 2026
    Mod 470
    MANAGEMENT AND OPERATION OF THE THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY (APPROPRIATED FUNDS: -620,555.58; NON-APPROPRIATED FUNDS: $22,280.53)
    $-620.6K
  • December 12, 2025
    Mod 469
    MANAGEMENT AND OPERATION OF THE THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY (APPROPRIATED FUNDS: -$116.81; NON-APPROPRIATED FUNDS: $90,062)
    $-117
  • November 24, 2025
    Mod 468
    MANAGEMENT AND OPERATION OF THE THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY (APPROPRIATED FUNDS: $89,521,503; NON-APPROPRIATED FUNDS: $0)
    $89.52M
  • November 10, 2025
    Mod 467
    MANAGEMENT AND OPERATION OF THE THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY (APPROPRIATED FUNDS: $0; NON-APPROPRIATED FUNDS: $46,195)
    $0
  • October 29, 2025
    Mod 466
    MANAGEMENT AND OPERATION OF THE THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY (APPROPRIATED FUNDS: $2,880,770.43; NON-APPROPRIATED FUNDS: $0)
    $2.88M
  • October 24, 2025
    Mod 465
    MANAGEMENT AND OPERATION OF THE THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY (APPROPRIATED FUNDS: $0; NON-APPROPRIATED FUNDS: $0)
    $0
  • October 22, 2025
    Mod 464
    MANAGEMENT AND OPERATION OF THE THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY (APPROPRIATED FUNDS: $7,964,000; NON-APPROPRIATED FUNDS: $0)
    $7.96M

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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 April 14, 2006 for $3.25 billion of work classified under RESEARCH AND DEVELOPMENT IN THE PHYSICAL, ENGINEERING, AND LIFE SCIENCES. It has been modified 472 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 $3.25 billion to date, with a total potential value of $3.92 billion if all options are exercised.