NAICS 541620
Top Federal Environmental Consulting Services Contractors
NEPA reviews, remediation engineering, climate-adaptation studies. EPA, DOE, and DoD environmental cleanup are the biggest customers.
15
48 / 100
$1.01B
WESTON SOLUTIONS INC
55/100Department of Defense
Lifetime
$167.2M
LYNKER CORPORATION
55/100Department of Commerce
Lifetime
$98.6M
TETRA TECH, INC.
55/100Agency for International Development
Lifetime
$482.3M
EASTERN RESEARCH GROUP INC
55/100Environmental Protection Agency
Lifetime
$88.7M
VERNADERO GROUP INC
53/100Department of Defense
Lifetime
$50.5M
PROJECT ENHANCEMENT CORPORATION
52/100Department of Energy
Lifetime
$41.1M
S C & A INC
52/100Environmental Protection Agency
Lifetime
$34.0M
THE CADMUS GROUP LLC
51/100Environmental Protection Agency
Lifetime
$27.7M
WSP-VERSAR JV
48/100WASHINGTON, DC· Environmental Protection Agency
Lifetime
$4.6M
TETRA TECH, INC.
48/100Environmental Protection Agency
Lifetime
$11.6M
ALLRED RESTORATION, INC.
43/100TREMONTON, UT· Department of the Interior
Lifetime
$182K
WALKER ENVIRONMENTAL RESEARCH LLC
42/100BRUNSWICK, ME· Department of the Interior
Lifetime
$292K
ECOLAB INC.
39/100HORSHAM, PA· Department of Health and Human Services
Lifetime
$223K
WILLIAM W WALKER JR
36/100HARPSWELL, ME· Department of the Interior
Lifetime
$185K
PACIFIC RIM ENVIRONMENTAL, INC.
36/100SEATTLE, WA· Department of Veterans Affairs
Lifetime
$24K
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