Department of State PSC R425 contractors

SUPPORT- PROFESSIONAL: ENGINEERING/TECHNICAL. Contractors in this PSC lane under Department of State.

Agency: Department of State

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$31,013,099,578

Visible recipients tied to Department of State and PSC R425

Northrop Grumman Information Technology INC

Mclean, VA

Mclean, VA | 5 awards | Top agency Department of Defense | NAICS 541511

$342,310,524

General Dynamics Information Technology, Inc.

Falls Church, VA

Falls Church, VA | 3,177 awards | Top agency Department of Defense | NAICS 541512

$8,287,097,173

Science Applications International Corporation

Reston, VA

Reston, VA | 3,314 awards | Top agency Department of Defense | NAICS 541512

$11,699,994,658

Peraton Inc.

Herndon, VA

Herndon, VA | 1,140 awards | Top agency Department of Defense | NAICS 541330

$1,737,968,178

Mantech Systems Engineering Corporation

Fairfax, VA

Fairfax, VA | 5 awards | Top agency Department of Defense | NAICS 541330

$457,665,999

Mantech Advanced Systems International, Inc.

Herndon, VA

Herndon, VA | 683 awards | Top agency Department of Defense | NAICS 541330

$2,628,668,884

Alutiiq Pacific, LLC

Anchorage, AK

Anchorage, AK | 20 awards | Top agency Department of Defense | NAICS 561210

$101,436,307

Microsoft Corporation

Redmond, WA

Redmond, WA | 514 awards | Top agency Department of Defense | NAICS 541512

$3,028,798,691

Arcticom, LLC

Anchorage, AK

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

$71,416,949

Siemens Government Technologies INC

Arlington, VA

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

$293,490,832

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