Agency + NAICS page

Department of Defense NAICS 541690 contractors

Other Scientific and Technical Consulting Services. Use this buyer-scoped industry page to see which visible contractors sit closest to this NAICS lane under Department of Defense.

Agency: Department of Defense
Last updated: April 8, 2026

Visible recipients

51

Mapped obligations

$1,962,494,983

Top PSC links

4

Top recipients

Visible recipients tied to Department of Defense and NAICS 541690

Bevilacqua Research Corporation

Huntsville, AL

Bevilacqua Research Corporation is a federal category business profile based in Huntsville, AL. The current public data layer shows $4,812,421 in visible federal obligations across 41 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.

$9,530,488

Insight Policy Research, Inc.

Arlington, VA

Insight Policy Research, Inc. is a federal 8a program participant profile based in Arlington, VA. The current public data layer shows $4,289,953 in visible federal obligations across 23 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 R499.

$3,215,327

Brown And Caldwell

San Diego, CA

Brown And Caldwell is a federal category business profile based in San Diego, CA. The current public data layer shows $3,910,103 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 541330 (Engineering Services). The profile also shows meaningful product and service activity in PSC C211.

$43,398

Altarum Institute

Novi, MI

Altarum Institute is a federal category business profile based in Novi, MI. The current public data layer shows $2,913,706 in visible federal obligations across 62 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.

$14,962,191

Chenega Infinity, LLC

Chantilly, VA

Chenega Infinity, LLC is a federal 8a program participant profile based in Chantilly, VA. The current public data layer shows $2,336,910 in visible federal obligations across 10 awards or transactions. Department of Homeland Security appears as the strongest visible awarding agency. Top industry concentration is in NAICS 561612 (Security Guards and Patrol Services). The profile also shows meaningful product and service activity in PSC S206.

$1,554,530

Ares Corporation

Mclean, VA

Ares Corporation is a federal category business profile based in Mclean, VA. The current public data layer shows $1,760,163 in visible federal obligations across 16 awards or transactions. National Aeronautics and Space Administration 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.

$53,839,972

Audacious Inquiry LLC

Catonsville, MD

Audacious Inquiry LLC is a federal category business profile based in Catonsville, MD. The current public data layer shows $1,703,984 in visible federal obligations across 21 awards or transactions. Department of Health and Human Services appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541513 (Computer Facilities Management Services). The profile also shows meaningful product and service activity in PSC R410.

$5,000,665

Watterson Construction CO

Anchorage, AK

Watterson Construction CO is a federal category business profile based in Anchorage, AK. The current public data layer shows $1,394,329 in visible federal obligations across 13 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 236220 (Commercial and Institutional Building Construction). The profile also shows meaningful product and service activity in PSC Y1BZ.

$1,600

Ssi-venesco Jv LLC

Centreville, VA

Ssi-venesco Jv LLC is a federal category business profile based in Centreville, VA. The current public data layer shows $934,109 in visible federal obligations across 23 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541990 (All Other Professional, Scientific, and Technical Services). The profile also shows meaningful product and service activity in PSC R418.

$1,385,638

Ameresco Federal Solutions, Inc.

Farmingham, MA

Ameresco Federal Solutions, Inc. is a federal category business profile based in Farmingham, MA. The current public data layer shows $427,461 in visible federal obligations across 18 awards or transactions. Department of Homeland Security 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 B540.

$1,627,616
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