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General Services Administration NAICS 541990 and PSC R499 contractors

All Other Professional, Scientific, and Technical Services. SUPPORT- PROFESSIONAL: OTHER. Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under General Services Administration.

General Services Administration · NAICS 541990 · PSC R499
Last updated: April 8, 2026

Visible recipients

62

Mapped obligations

$29,446,310,383

State overlap

4

Top recipients

Visible recipients in the General Services Administration overlap of NAICS 541990 and PSC R499

Knowesis, Inc.

Fairfax, VA

Knowesis, Inc. is a federal 8a program participant profile based in Fairfax, VA. The current public data layer shows $8,389,178 in visible federal obligations across 39 awards or transactions. Department of Defense 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 R699.

$62,650,982

Healthcare Management Solutions, LLC

Fairmont, WV

Healthcare Management Solutions, LLC is a federal category business profile based in Fairmont, WV. The current public data layer shows $7,894,008 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.

$183,385,033

Aneon Brillient, LLC

Reston, VA

Aneon Brillient, LLC is a federal asian pacific american owned business profile based in Reston, VA. The current public data layer shows $7,852,231 in visible federal obligations across 33 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 R699.

$5,523,157

Arc Aspicio LLC

Arlington, VA

Arc Aspicio LLC is a federal category business profile based in Arlington, VA. The current public data layer shows $6,151,771 in visible federal obligations across 59 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 R408.

$73,278,033

Solutions Through Innovative Technologies INC

Fairborn, OH

Solutions Through Innovative Technologies INC is a federal black american owned business profile based in Fairborn, OH. The current public data layer shows $5,348,826 in visible federal obligations across 72 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 R499.

$238,535,510

Aptive Resources LLC

Alexandria, VA

Aptive Resources LLC is a federal category business profile based in Alexandria, VA. The current public data layer shows $5,154,601 in visible federal obligations across 81 awards or transactions. Department of Veterans Affairs appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541613 (Marketing Consulting Services). The profile also shows meaningful product and service activity in PSC R701.

$133,295,624

Chenega Applied Solutions, LLC

Lorton, VA

Chenega Applied Solutions, LLC is a federal 8a program participant profile based in Lorton, VA. The current public data layer shows $2,466,562 in visible federal obligations across 42 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 561210 (Facilities Support Services). The profile also shows meaningful product and service activity in PSC R499.

$90,362,266

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.

$3,585,025

Medical Science & Computing, LLC

Rockville, MD

Medical Science & Computing, LLC is a federal category business profile based in Rockville, MD. The current public data layer shows $676,667 in visible federal obligations across 184 awards or transactions. Department of Health and Human Services 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 R499.

$1,557,750,404

Altamira Technologies CORP

Mc Lean, VA

Altamira Technologies CORP is a federal category business profile based in Mc Lean, VA. The current public data layer shows $582,865 in visible federal obligations across 25 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 AD22.

$101,905,524
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