Agency + PSC page

Department of Homeland Security PSC R499 contractors

SUPPORT- PROFESSIONAL: OTHER. Use this buyer-scoped PSC page to see which visible contractors sit closest to this product or service lane under Department of Homeland Security.

Agency: Department of Homeland Security
Last updated: April 6, 2026

Visible recipients

78

Mapped obligations

$80,489,950,200

Top NAICS links

4

Top recipients

Visible recipients tied to Department of Homeland Security and PSC R499

Govcio, LLC

Fairfax, VA

Govcio, LLC is a federal category business profile based in Fairfax, VA. The current public data layer shows $220,313,179 in visible federal obligations across 94 awards or transactions. Department of Veterans Affairs 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.

$358,259,189

Maximus INC

Mclean, VA

Maximus INC is a federal category business profile based in Mclean, VA. The current public data layer shows $194,545,463 in visible federal obligations across 5 awards or transactions. Department of Justice appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541611 (Administrative Management and General Management Consulting Services). The profile also shows meaningful product and service activity in PSC R408.

$35,840,935

Peraton Technology Services Inc.

Chantilly, VA

Peraton Technology Services Inc. is a federal category business profile based in Chantilly, VA. The current public data layer shows $163,252,765 in visible federal obligations across 275 awards or transactions. General Services Administration 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 R499.

$608,923,774

Peraton Risk Decision Inc.

Loveland, CO

Peraton Risk Decision Inc. is a federal category business profile based in Loveland, CO. The current public data layer shows $161,105,682 in visible federal obligations across 52 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.

$306,841,827

Avantus Federal LLC

Mc Lean, VA

Avantus Federal LLC is a federal category business profile based in Mc Lean, VA. The current public data layer shows $158,730,910 in visible federal obligations across 95 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 R408.

$283,437,247

Guidehouse LLP

Mc Lean, VA

Guidehouse LLP is a federal category business profile based in Mc Lean, VA. The current public data layer shows $140,750,981 in visible federal obligations across 132 awards or transactions. Department of State appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541611 (Administrative Management and General Management Consulting Services). The profile also shows meaningful product and service activity in PSC R499.

$993,223,255

Sev1tech, LLC

Woodbridge, VA

Sev1tech, LLC is a federal category business profile based in Woodbridge, VA. The current public data layer shows $134,333,750 in visible federal obligations across 225 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541712 (Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)). The profile also shows meaningful product and service activity in PSC R425.

$77,823,897

Guidehouse Digital LLC

Mc Lean, VA

Guidehouse Digital LLC is a federal category business profile based in Mc Lean, VA. The current public data layer shows $116,712,874 in visible federal obligations across 385 awards or transactions. Department of Homeland Security 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 D318.

$185,160,418

Nv5 Geospatial, Inc.

Saint Petersburg, FL

Nv5 Geospatial, Inc. is a federal category business profile based in Saint Petersburg, FL. The current public data layer shows $90,434,064 in visible federal obligations across 132 awards or transactions. Department of the Interior appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541360 (Geophysical Surveying and Mapping Services). The profile also shows meaningful product and service activity in PSC C219.

$23,355,613

Reli Group INC

Windsor Mill, MD

Reli Group INC is a federal 8a program participant profile based in Windsor Mill, MD. The current public data layer shows $79,433,948 in visible federal obligations across 118 awards or transactions. Department of Health and Human Services appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541611 (Administrative Management and General Management Consulting Services). The profile also shows meaningful product and service activity in PSC R408.

$132,097,857
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