NAICS + PSC page

NAICS 541620 and PSC B510 contractors

Environmental Consulting Services. SPECIAL STUDIES/ANALYSIS- ENVIRONMENTAL ASSESSMENTS. Use this cross-code page to see which visible federal contractors sit in the overlap between these two public category lanes.

NAICS 541620 + PSC B510
Last updated: April 7, 2026

Visible recipients

8

Mapped obligations

$503,740,930

State overlap

0

Top recipients

Visible recipients in the NAICS 541620 and PSC B510 overlap

Hdr Environmental, Operations And Construction, Inc.

Englewood, CO

Hdr Environmental, Operations And Construction, Inc. is a federal category business profile based in Englewood, CO. The current public data layer shows $59,678,442 in visible federal obligations across 109 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.

$145,458,143

Wsp USA Solutions INC

Arlington, VA

Wsp USA Solutions INC is a federal category business profile based in Arlington, VA. The current public data layer shows $36,524,205 in visible federal obligations across 228 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 C219.

$84,427,302

Michael Baker International Holdco Corporation

Moon Township, PA

Michael Baker International Holdco Corporation is a federal category business profile based in Moon Township, PA. The current public data layer shows $23,540,961 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 C219.

$2,553,626

Stantec Consulting Services Inc.

Denver, CO

Stantec Consulting Services Inc. is a federal category business profile based in Denver, CO. The current public data layer shows $21,902,417 in visible federal obligations across 138 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 C219.

$228,053,494

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.

$39,652,362

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.

$3,507,265

Trs Group, Inc.

Indianapolis, IN

Trs Group, Inc. is a federal category business profile based in Indianapolis, IN. The current public data layer shows $1,175,119 in visible federal obligations across 5 awards or transactions. Small Business 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 AJ13.

$80,000

Smithgroup Michigan Incorporated

Detroit, MI

Smithgroup Michigan Incorporated is a federal category business profile based in Detroit, MI. The current public data layer shows $274,279 in visible federal obligations across 5 awards or transactions. Department of the Interior appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541310 (Architectural Services). The profile also shows meaningful product and service activity in PSC C130.

$8,738