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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

Cherokee Nation Technology Solutions LLC

Tulsa, OK

Top buyer: Department of DefenseRecent award: 2022-04-01

$41,228,262

Tetra Tech Ec, Inc.

San Diego, CA

Top buyer: Department of DefenseRecent award: 2025-12-09

$215,451,342

Ecc Constructors LLC

Burlingame, CA

Top buyer: Department of DefenseRecent award: 2025-07-30

$1,866,566,670

Chenega Global Services LLC

San Antonio, TX

Top buyer: Department of DefenseRecent award: 2017-10-01

$81,275,559

Aecom Technical Services, Inc.

Los Angeles, CA

Top buyer: Department of DefenseRecent award: 2026-08-13

$454,684,853

Amentum Technical Services LLC

Aiken, SC

Top buyer: Department of TransportationRecent award: 2020-09-24

$58,003,095

Navajo Nation

Window Rock, AZ

Top buyer: Department of the TreasuryRecent award: 2026-03-27

$2,025,124

Ahtna Facility Services, Incorporated

Anchorage, AK

Top buyer: Department of EnergyRecent award: 2021-02-17

$102,017,045

Aptim Federal Services, LLC

Baton Rouge, LA

Top buyer: Department of DefenseRecent award: 2029-07-14

$665,771,701

Shaw Infrastructure, Inc.

Monroeville, PA

Top buyer: Department of DefenseRecent award: 2010-08-31

$20,988,179

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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