Department of Homeland Security NAICS 541512 and PSC D399 contractors

Computer Systems Design Services. IT AND TELECOM- OTHER IT AND TELECOMMUNICATIONS. Cross-code overlap under Department of Homeland Security.

Department of Homeland Security · NAICS 541512 · PSC D399

Last updated: April 13, 2026

Visible recipients

Mapped obligations

$197,535,235,621

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 541512 and PSC D399

Booz Allen Hamilton INC

Mclean, VA

Mclean, VA | 3,955 awards | Top agency Department of Defense | NAICS 541512

$32,647,146,948

General Dynamics Information Technology, Inc.

Falls Church, VA

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

$37,089,037,496

Caci, Inc. - Federal

Chantilly, VA

Chantilly, VA | 1,121 awards | Top agency Department of Defense | NAICS 541512

$10,629,894,881

Deloitte Consulting LLP

Arlington, VA

Arlington, VA | 1,829 awards | Top agency Department of Defense | NAICS 541512

$14,706,807,814

Leidos, Inc.

Reston, VA

Reston, VA | 9,621 awards | Top agency Department of Defense | NAICS 541512

$31,449,474,687

Caci Premier Technology, LLC

Chantilly, VA

Chantilly, VA | 5 awards | Top agency Office of Personnel Management | NAICS 561611

$194,235,543

Mantech Advanced Systems International, Inc.

Herndon, VA

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

$3,759,949,124

Peraton Enterprise Solutions LLC

Chantilly, VA

Chantilly, VA | 415 awards | Top agency Department of Defense | NAICS 541512

$24,701,523,482

Hms Technologies, Inc.

Martinsburg, WV

Martinsburg, WV | 5 awards | Top agency Department of Veterans Affairs | NAICS 541512

$330,705,655

Ecs Federal, LLC

Fairfax, VA

Fairfax, VA | 401 awards | Top agency Department of Defense | NAICS 541512

$1,748,635,093

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