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Department of Labor 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 Department of Labor.

Department of Labor · NAICS 541990 · PSC R499
Last updated: April 8, 2026

Visible recipients

13

Mapped obligations

$5,063,761,393

State overlap

4

Top recipients

Visible recipients in the Department of Labor overlap of NAICS 541990 and PSC R499

Amentum National Security Programs, INC

Chantilly, VA

Amentum National Security Programs, INC is a federal category business profile based in Chantilly, VA. The current public data layer shows $402,038,105 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 541990 (All Other Professional, Scientific, and Technical Services). The profile also shows meaningful product and service activity in PSC R499.

$436,368,898

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.

$358,338,455

Mathematica Inc.

Princeton, NJ

Mathematica Inc. is a federal category business profile based in Princeton, NJ. The current public data layer shows $108,612,602 in visible federal obligations across 183 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.

$1,874,230,179

Counterpart International, Inc.

Washington, DC

Counterpart International, Inc. is a federal category business profile based in Washington, DC. The current public data layer shows $70,599,925 in visible federal obligations across 5 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.

$19,113,494

The Bizzell Group LLC

Hyattsville, MD

The Bizzell Group LLC is a federal 8a program participant profile based in Hyattsville, MD. The current public data layer shows $58,681,920 in visible federal obligations across 126 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 U006.

$165,099,788

Jbs International, Inc.

Rockville, MD

Jbs International, Inc. is a federal category business profile based in Rockville, MD. The current public data layer shows $51,361,037 in visible federal obligations across 53 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 R408.

$480,040,770

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

Fedwriters, Inc.

Fairfax, VA

Fedwriters, Inc. is a federal 8a program participant profile based in Fairfax, VA. The current public data layer shows $27,437,211 in visible federal obligations across 254 awards or transactions. Department of Commerce 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.

$32,654,347

Paragon Technical Services, Inc.

Hilliard, OH

Paragon Technical Services, Inc. is a federal category business profile based in Hilliard, OH. The current public data layer shows $16,565,776 in visible federal obligations across 16 awards or transactions. Department of Energy 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 R499.

$260,581,228

Icf Macro INC

Reston, VA

Icf Macro INC is a federal category business profile based in Reston, VA. The current public data layer shows $9,641,315 in visible federal obligations across 67 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.

$752,434,048
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