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PSC F999 federal contractors, buyers, and awards

OTHER ENVIRONMENTAL SERVICES. Use this PSC page to review visible contractors, buyer overlap, and award concentration in this product or service lane.

Category code: F999

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$6,058,294,971

Buyer overlap

Top recipients

Recipients active in this PSC lane

Osage Nation Energy Services LLC

Tulsa, OK

Top buyer: Department of DefenseRecent award: 2025-09-30

$5,470,565

Ahtna Solutions, LLC

Anchorage, AK

Top buyer: Department of DefenseRecent award: 2026-04-01

$17,767,508

Catawba Indian Nation

Rock Hill, SC

Top buyer: Department of the TreasuryRecent award: 2026-03-17

-$6,551

The Kleinfelder Group, Inc.

San Diego, CA

Top buyer: Small Business AdministrationRecent award: 2015-03-13

$4,979

Brown And Caldwell

San Diego, CA

Top buyer: Department of DefenseRecent award: 2024-05-29

$1,165,513

Native Village Of Eklutna

Chugiak, AK

Top buyer: Department of Health and Human ServicesRecent award: 2010-07-30

-$3,771

Koniag Operations Services LLC

Anchorage, AK

Top buyer: General Services AdministrationRecent award: 2024-12-26

$2,473,514

Aleut Remediation LLC

Oak Ridge, TN

Top buyer: Department of DefenseRecent award: 2025-08-15

$41,511,966

Sealaska Remediation Solutions, LLC

Seattle, WA

Top buyer: Department of DefenseRecent award: 2025-09-26

$6,687,198

Garver LLC

North Little Rock, AR

Top buyer: Department of TransportationRecent award: 2022-07-11

$21,780

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State, agency, and industry paths

States

California

6 recipients · $1,151,104,014

Oklahoma

3 recipients · $527,583,384

Alaska

8 recipients · $373,580,864

Texas

1 recipients · $335,293,840

South Carolina

2 recipients · $235,080,308

Pennsylvania

3 recipients · $221,412,944

Agencies

Department of Defense