NAICS + PSC page

NAICS 541990 and PSC R499 contractors

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

NAICS 541990 + PSC R499
Last updated: April 6, 2026

Visible recipients

60

Mapped obligations

$33,876,438,527

State overlap

0

Top recipients

Visible recipients in the NAICS 541990 and PSC R499 overlap

The Lewin Group, Inc.

La Crosse, WI

The Lewin Group, Inc. is a federal category business profile based in La Crosse, WI. The current public data layer shows $46,392,453 in visible federal obligations across 82 awards or transactions. Department of Health and Human Services appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541720 (Research and Development in the Social Sciences and Humanities). The profile also shows meaningful product and service activity in PSC R499.

$614,524,624

Goldbelt C6, LLC

Chesapeake, VA

Goldbelt C6, LLC is a federal 8a program participant profile based in Chesapeake, VA. The current public data layer shows $41,298,630 in visible federal obligations across 338 awards or transactions. Department of Health and Human Services 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 R499.

$287,740,626

Abt Associates International Inc.

Rockville, MD

Abt Associates International Inc. is a federal category business profile based in Rockville, MD. The current public data layer shows $40,076,554 in visible federal obligations across 2 awards or transactions. Agency for International Development 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 R499.

$80,153,108

Asrc Federal Professional Services, LLC

Beltsville, MD

Asrc Federal Professional Services, LLC is a federal 8a program participant profile based in Beltsville, MD. The current public data layer shows $38,732,273 in visible federal obligations across 62 awards or transactions. Department of Defense 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 R499.

$313,129,249

Social & Scientific Systems, Inc.

Silver Spring, MD

Social & Scientific Systems, Inc. is a federal category business profile based in Silver Spring, MD. The current public data layer shows $34,734,611 in visible federal obligations across 84 awards or transactions. Department of Health and Human Services 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 AZ11.

$216,511,106

Prescient Edge Corporation

Mc Lean, VA

Prescient Edge Corporation is a federal category business profile based in Mc Lean, VA. The current public data layer shows $33,195,873 in visible federal obligations across 80 awards or transactions. General Services Administration appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541715 (Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)). The profile also shows meaningful product and service activity in PSC AC33.

$45,604,912

Prometheus Federal Services LLC

Chantilly, VA

Prometheus Federal Services LLC is a federal category business profile based in Chantilly, VA. The current public data layer shows $32,463,808 in visible federal obligations across 93 awards or transactions. Department of Veterans Affairs appears as the strongest visible awarding agency. Top industry concentration is in NAICS 561320 (Temporary Help Services). The profile also shows meaningful product and service activity in PSC R499.

$23,310,488

Lcg Systems LLC

Rockville, MD

Lcg Systems LLC is a federal black american owned business profile based in Rockville, MD. The current public data layer shows $31,956,062 in visible federal obligations across 40 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 D399.

$90,269,218

Riverside Research Institute

New York, NY

Riverside Research Institute is a federal category business profile based in New York, NY. The current public data layer shows $31,384,228 in visible federal obligations across 44 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 R499.

$784,199,496

Concept Plus, LLC

Fairfax, VA

Concept Plus, LLC is a federal 8a program participant profile based in Fairfax, VA. The current public data layer shows $31,091,746 in visible federal obligations across 68 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 DA01.

$48,183,204
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