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NAICS 541620

Top contractors in NAICS 541620

The 566 contractors with tracked federal awards in NAICS 541620, totalling $5,963,833,516. Ranked by award value.

See live NAICS 541620 opportunities →All contractors

1TETRA TECH, INC.$494,956,508187 awards
2EASTERN RESEARCH GROUP INC$323,466,673174 awards
3PROJECT ENHANCEMENT CORPORATION$264,058,61713 awards
4WESTON SOLUTIONS INC$175,536,34082 awards
5LYNKER CORPORATION$163,741,98514 awards
6THE CADMUS GROUP LLC$162,409,27295 awards
7LOCKHEED MARTIN SERVICES, LLC$139,903,8341 awards
8ENVIRONMENTAL INCENTIVES, INC.$132,854,4285 awards
9S C & A INC$114,953,54726 awards
10GENERAL DYNAMICS INFORMATION TECHNOLOGY, INC.$112,878,88425 awards
11I. M. SYSTEMS GROUP, INC.$102,671,3351 awards
12BOSTON GOVERNMENT SERVICES, LLC$97,228,23521 awards
13ICF INCORPORATED, L.L.C.$87,585,71137 awards
14SKEO SOLUTIONS, INC$81,702,05012 awards
15VERNADERO GROUP INC$77,950,68817 awards
16CDM FEDERAL PROGRAMS CORPORATION$77,564,16824 awards
17GRYPHON ENVIRONMENTAL, LLC$75,214,2365 awards
18SRC INC$74,587,89623 awards
19CONSOLIDATED SAFETY SERVICES INCORPORATED$74,002,86618 awards
20RESEARCH TRIANGLE INSTITUTE$67,606,47713 awards
21GULF SOUTH RESEARCH CORP$64,100,02922 awards
22LEIDOS, INC.$57,095,7083 awards
23SOL SOLUTIONS, LLC$54,057,41510 awards
24WSP USA SOLUTIONS INC$50,288,43223 awards
25ENVIRONMENTAL MANAGEMENT & PLANNING SOLUTIONS LLC$50,144,63233 awards
26CHEMONICS INTERNATIONAL, INC.$49,402,5454 awards
27ECO & ASSOCIATES, INC.$43,806,66412 awards
28ENVIRONMENTAL MANAGEMENT SUPPORT, INC$42,976,37029 awards
29WESTON-TECHLAW JV LLC$41,887,03220 awards
30CSRA LLC$41,312,0971 awards
31APTIM FEDERAL SERVICES, LLC$39,128,25412 awards
32GENWEST SYSTEMS INC$38,972,40711 awards
33SIGNATURE SCIENCE LLC$38,148,3273 awards
34SCIENCE APPLICATIONS INTERNATIONAL CORPORATION$36,712,6774 awards
35STRAUGHAN ENVIRONMENTAL, INC.$36,201,1659 awards
36WSP USA ENVIRONMENT & INFRASTRUCTURE INC.$35,290,30825 awards
37GREAT LAKES ENVIRONMENTAL CENTER, INC$33,650,68712 awards
38TETRA TECH INC$33,563,79915 awards
39AECOM TECHNICAL SERVICES, INC.$32,885,76613 awards
40SOLV LLC$32,862,5718 awards
41TOEROEK ASSOCIATES, INC.$30,793,13131 awards
42RPI-CSS, LLC$29,984,0527 awards
43INDEPENDENT STRATEGIC MANAGEMENT SOLUTIONS INC$29,868,17114 awards
44ABT GLOBAL LLC$29,653,73711 awards
45JACOBS ENGINEERING GROUP INC.$28,224,1561 awards
46LRS FEDERAL LLC$26,611,3237 awards
47BLUESTONE ENVIRONMENTAL GROUP, INC.$26,554,3349 awards
48THE SOLUTION FOUNDRY, LLC$25,465,8554 awards
49RESOURCE MANAGEMENT GROUP, INC.$25,315,8875 awards
50INTEGRATED SYSTEMS SOLUTIONS, INC.$24,924,7454 awards
51INDUSTRIAL ECONOMICS INC$24,460,98610 awards
52AEROSTAR ENVIRONMENTAL AND CONSTRUCTION LLC$24,447,8514 awards
53BATTELLE MEMORIAL INSTITUTE$23,981,7266 awards
54EARTH RESOURCES TECHNOLOGY, LLC$23,975,3857 awards
55SUNDANCE CONSULTANTS, LLC$23,268,00212 awards
56TIERRA RIGHT OF WAY SERVICES LTD$23,024,7255 awards
57PB&A/CSS JV, LLC.$22,982,97511 awards
58JACOBS GEOSYNTEC A JOINT VENTURE$22,773,0827 awards
59STANTEC CONSULTING SERVICES INC.$21,270,80815 awards
60OCEAN ASSOCIATES INC$21,124,3867 awards