Department of State PSC R499 contractors

SUPPORT- PROFESSIONAL: OTHER. Contractors in this PSC lane under Department of State.

Agency: Department of State

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$24,711,158,540

Visible recipients tied to Department of State and PSC R499

Alutiiq Global Solutions, LLC

Anchorage, AK

Anchorage, AK | 5 awards | Top agency Department of Defense | NAICS 236220

$21,582,167

Arcticom, LLC

Anchorage, AK

Anchorage, AK | 198 awards | Top agency Department of Defense | NAICS 541512

$39,354,701

Guidehouse LLP

Mc Lean, VA

Mc Lean, VA | 134 awards | Top agency Department of State | NAICS 541611

$994,296,948

Tetra Tech, Inc.

Pasadena, CA

Pasadena, CA | 260 awards | Top agency Department of Defense | NAICS 541330

$373,572,423

Metrostar Systems, LLC

Reston, VA

Reston, VA | 73 awards | Top agency Department of Defense | NAICS 541512

$63,325,655

Siemens Government Technologies INC

Arlington, VA

Arlington, VA | 227 awards | Top agency Department of Defense | NAICS 541512

$125,097,666

Tatitlek Technologies, LLC

Anchorage, AK

Anchorage, AK | 238 awards | Top agency Department of State | NAICS 561210

$177,906,851

Olgoonik Federal, LLC

Anchorage, AK

Anchorage, AK | 130 awards | Top agency Department of Defense | NAICS 493110

$67,638,863

Koniag Data Solutions LLC

Anchorage, AK

Anchorage, AK | 129 awards | Top agency Department of Defense | NAICS 541519

$44,546,975

Alpha Omega Integration LLC

Vienna, VA

Vienna, VA | 93 awards | Top agency Department of Homeland Security | NAICS 541512

$45,052,087

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