Agency + PSC page

Department of Defense PSC D399 contractors

IT AND TELECOM- OTHER IT AND TELECOMMUNICATIONS. Use this buyer-scoped PSC page to see which visible contractors sit closest to this product or service lane under Department of Defense.

Agency: Department of Defense
Last updated: April 6, 2026

Visible recipients

91

Mapped obligations

$90,496,988,688

Top NAICS links

4

Top recipients

Visible recipients tied to Department of Defense and PSC D399

Leidos, Inc.

Reston, VA

Leidos, Inc. is a federal category business profile based in Reston, VA. The current public data layer shows $2,338,754,223 in visible federal obligations across 9,802 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541512 (Computer Systems Design Services). The profile also shows meaningful product and service activity in PSC R425.

$9,693,894,592

Peraton Inc.

Herndon, VA

Peraton Inc. is a federal category business profile based in Herndon, VA. The current public data layer shows $2,229,566,035 in visible federal obligations across 1,151 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541330 (Engineering Services). The profile also shows meaningful product and service activity in PSC R425.

$1,420,758,576

Caci Premier Technology, LLC

Chantilly, VA

Caci Premier Technology, LLC is a federal category business profile based in Chantilly, VA. The current public data layer shows $1,735,863,999 in visible federal obligations across 5 awards or transactions. Office of Personnel Management appears as the strongest visible awarding agency. Top industry concentration is in NAICS 561611 (Investigation and Personal Background Check Services). The profile also shows meaningful product and service activity in PSC R422.

$191,767,901

Cgi Federal Inc.

Fairfax, VA

Cgi Federal Inc. is a federal category business profile based in Fairfax, VA. The current public data layer shows $1,376,708,353 in visible federal obligations across 1,052 awards or transactions. Department of State appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541512 (Computer Systems Design Services). The profile also shows meaningful product and service activity in PSC D399.

$2,959,857,371

Northrop Grumman Systems Corporation

Melbourne, FL

Northrop Grumman Systems Corporation is a federal category business profile based in Melbourne, FL. The current public data layer shows $1,047,116,489 in visible federal obligations across 720 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 336411 (Aircraft Manufacturing). The profile also shows meaningful product and service activity in PSC 1510.

$6,748,722,186

Mantech Advanced Systems International, Inc.

Herndon, VA

Mantech Advanced Systems International, Inc. is a federal category business profile based in Herndon, VA. The current public data layer shows $879,999,975 in visible federal obligations across 686 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541330 (Engineering Services). The profile also shows meaningful product and service activity in PSC R425.

$1,223,124,970

Peraton Enterprise Solutions LLC

Chantilly, VA

Peraton Enterprise Solutions LLC is a federal category business profile based in Chantilly, VA. The current public data layer shows $829,926,286 in visible federal obligations across 419 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541512 (Computer Systems Design Services). The profile also shows meaningful product and service activity in PSC D399.

$11,559,266,841

Ecs Federal, LLC

Fairfax, VA

Ecs Federal, LLC is a federal category business profile based in Fairfax, VA. The current public data layer shows $553,440,366 in visible federal obligations across 405 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541512 (Computer Systems Design Services). The profile also shows meaningful product and service activity in PSC R425.

$403,350,244

Jacobs Technology Inc.

Huntsville, AL

Jacobs Technology Inc. is a federal category business profile based in Huntsville, AL. The current public data layer shows $477,016,644 in visible federal obligations across 5 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541511 (Custom Computer Programming Services). The profile also shows meaningful product and service activity in PSC D399.

$504,651,586

Microsoft Corporation

Redmond, WA

Microsoft Corporation is a federal category business profile based in Redmond, WA. The current public data layer shows $468,832,793 in visible federal obligations across 514 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541512 (Computer Systems Design Services). The profile also shows meaningful product and service activity in PSC R425.

$485,811,886
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