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NAICS 541620

Top contractors in NAICS 541620

The 497 contractors with tracked federal awards in NAICS 541620, totalling $4,924,753,316. Ranked by award value.

See live NAICS 541620 opportunities →All contractors

1TETRA TECH, INC.$450,341,094174 awards
2EASTERN RESEARCH GROUP INC$291,978,411145 awards
3PROJECT ENHANCEMENT CORPORATION$262,624,12612 awards
4LYNKER CORPORATION$158,841,91714 awards
5THE CADMUS GROUP LLC$152,454,59987 awards
6WESTON SOLUTIONS INC$140,996,87071 awards
7LOCKHEED MARTIN SERVICES, LLC$139,903,8341 awards
8ENVIRONMENTAL INCENTIVES, INC.$132,854,4285 awards
9S C & A INC$111,579,29322 awards
10SKEO SOLUTIONS, INC$81,702,05012 awards
11ICF INCORPORATED, L.L.C.$78,492,25728 awards
12VERNADERO GROUP INC$77,160,65716 awards
13CDM FEDERAL PROGRAMS CORPORATION$71,447,49423 awards
14GRYPHON ENVIRONMENTAL, LLC$63,969,5273 awards
15GENERAL DYNAMICS INFORMATION TECHNOLOGY, INC.$63,940,83521 awards
16GULF SOUTH RESEARCH CORP$60,693,19018 awards
17RESEARCH TRIANGLE INSTITUTE$58,881,46311 awards
18CONSOLIDATED SAFETY SERVICES INCORPORATED$55,494,13912 awards
19SRC INC$51,094,74919 awards
20CHEMONICS INTERNATIONAL, INC.$49,402,5454 awards
21SOL SOLUTIONS, LLC$49,131,4898 awards
22ENVIRONMENTAL MANAGEMENT & PLANNING SOLUTIONS LLC$44,421,46026 awards
23WSP USA SOLUTIONS INC$42,721,02818 awards
24CSRA LLC$41,312,0971 awards
25WESTON-TECHLAW JV LLC$39,410,62618 awards
26GENWEST SYSTEMS INC$38,972,40711 awards
27APTIM FEDERAL SERVICES, LLC$34,742,9469 awards
28SOLV LLC$31,914,8337 awards
29AECOM TECHNICAL SERVICES, INC.$31,239,16811 awards
30SCIENCE APPLICATIONS INTERNATIONAL CORPORATION$30,936,4842 awards
31WSP USA ENVIRONMENT & INFRASTRUCTURE INC.$30,506,70619 awards
32RPI-CSS, LLC$29,984,0527 awards
33ECO & ASSOCIATES, INC.$29,413,5608 awards
34ABT GLOBAL LLC$29,013,19610 awards
35ENVIRONMENTAL MANAGEMENT SUPPORT, INC$28,467,20119 awards
36JACOBS ENGINEERING GROUP INC.$28,224,1561 awards
37TOEROEK ASSOCIATES, INC.$27,842,32526 awards
38TETRA TECH INC$27,487,94413 awards
39BLUESTONE ENVIRONMENTAL GROUP, INC.$25,783,2198 awards
40THE SOLUTION FOUNDRY, LLC$25,465,8554 awards
41INDEPENDENT STRATEGIC MANAGEMENT SOLUTIONS INC$24,928,32312 awards
42INTEGRATED SYSTEMS SOLUTIONS, INC.$24,731,5084 awards
43GREAT LAKES ENVIRONMENTAL CENTER, INC$24,457,9239 awards
44SIGNATURE SCIENCE LLC$23,881,2632 awards
45SUNDANCE CONSULTANTS, LLC$23,179,69611 awards
46TIERRA RIGHT OF WAY SERVICES LTD$23,024,7255 awards
47AEROSTAR ENVIRONMENTAL AND CONSTRUCTION LLC$22,550,0273 awards
48OCEAN ASSOCIATES INC$21,124,3867 awards
49STANTEC CONSULTING SERVICES INC.$19,014,99314 awards
50ENVIRONMENTAL COMPLIANCE CONSULTANTS, INC.$18,494,9694 awards
51BOSTON GOVERNMENT SERVICES, LLC$18,103,8234 awards
52CHENEGA RELIABLE SERVICES LLC$17,645,9724 awards
53SPATIAL FRONT INC$17,313,4952 awards
54PB&A/CSS JV, LLC.$17,197,6628 awards
55RESEARCH PLANNING, INC.$16,784,1708 awards
56HSG, LLC$16,681,7909 awards
57RENOVA-SOVEREIGN JOINT VENTURE$16,457,6482 awards
58BERING GLOBAL SOLUTIONS, LLC$16,451,5752 awards
59ENVIRONMENTAL RESEARCH GROUP, L.L.C.$16,439,12712 awards
60BOOZ ALLEN HAMILTON INC$16,390,78714 awards