RANK 2015/2014 |
FIRM |
TYPE OF FIRM |
1/1 |
CH2M Ltd., Englewood, Colo. |
CSL
|
2/7 |
AECOM, Los Angeles, Calif. |
DES
|
3/4 |
Bechtel Corp., San Francisco, Calif. |
CON
|
4/3 |
Veolia North America, Chicago, Ill. |
OTH/OPS
|
5/6 |
Clean Harbors Inc., Norwell, Mass. |
OTH
|
6/5 |
Tetra Tech Inc., Pasadena, Calif. |
CSL
|
7/13 |
ARCADIS NV, Amsterdam, Holland |
DES
|
8/15 |
Fluor Corp., Irving, Texas |
CON
|
9/9 |
MWH Global, Broomfield, Colo. |
DES
|
10/14 |
Suez Environnement North America, Paramus, N.J. |
OPS
|
11/16 |
AMEC Foster Wheeler, Alpharetta, Ga. |
CSL/CON
|
12/10 |
Golder Associates, Mississauga, Ontario, Canada |
CSL
|
13/17
|
CDM Smith, Boston, Mass. |
DES
|
14/11 |
Black & Veatch, Overland Park, Kansas |
CON/DES
|
15/18
|
Environ. Resources Management Inc. (ERM), London, England, U.K. |
CSL
|
16/19
|
HDR, Omaha, Neb. |
DES
|
42721
|
CB&I, The Woodlands, Texas |
DES
|
18/20
|
Stantec Inc., Edmonton, Alberta, Canada |
CSL/DES
|
19/30
|
The Walsh Group Ltd., Chicago, Ill. |
CON
|
20/22
|
Parsons Corp., Pasadena, Calif. |
CSL
|
21/24
|
Kiewit Corp., Omaha, Neb. |
CON
|
22/23
|
Garney Holding Co., Kansas City, Mo. |
CON
|
23/25
|
Layne Christensen Co., The Woodlands, Texas |
CON
|
24/26
|
NorthStar Group Services Inc., New York, N.Y. |
CON
|
25/29
|
Aegion Corp., St. Louis, Mo. |
CM-PM
|
26/21
|
GHD Inc., San Francisco, Calif. |
CON
|
27/38
|
Ramboll ENVIRON, Copenhagen, Denmark |
DES
|
28/31
|
Antea Group, Almere, The Netherlands |
CSL
|
29/32
|
ICF International, Fairfax, Va. |
CSL
|
30/39
|
McCarthy Holdings Inc., St. Louis, Mo. |
CON
|
31/36
|
Brown and Caldwell, Walnut Creek, Calif. |
DES
|
32/28
|
Cardno Inc., Fortitude Valley, Queensland, Australia |
CSL
|
33/37
|
Louis Berger, Morristown, N.J. |
CM-PM
|
34/43
|
PCL Construction Enterprises Inc., Denver, Colo. |
CON
|
35/27
|
Babcock & Wilcox Enterprises, Charlotte, N.C. |
EQP
|
36/33
|
Leidos, Reston, Va. |
CSL
|
37/34
|
Weeks Marine Inc., Cranford, N.J. |
CON
|
38/41
|
TRC Companies Inc., Lowell, Mass. |
CSL
|
39/62
|
Barnard Construction Co. Inc., Bozeman, MT |
CON
|
40/42
|
WSP/Parsons Brinckerhoff, Montreal, Quebec, Canada |
CSL/CON
|
41/35
|
Alberici Corp., St. Louis, Mo. |
CON
|
42/51
|
Bowen Engineering Corp., Indianapolis, Ind. |
CON
|
43/44
|
Kleinfelder, San Diego, Calif. |
CSL/DES
|
44/45
|
Weston Solutions Inc., West Chester, Pa. |
CSL
|
45/**
|
Great Lakes Dredge & Dock, Oak Brook, Ill. |
CON
|
46/68
|
National Response Corp., Great River, N.Y. |
OTH/OPS
|
47/48
|
Geosyntec Consultants Inc., Atlanta, Ga. |
CSL
|
48/47
|
PC Construction Co., South Burlington, Vt. |
CON
|
49/50
|
Ulliman Schutte Construction LLC, Miamisburg, Ohio |
CON
|
50/52
|
Burns & McDonnell, Kansas City, Mo. |
DES
|
51/46
|
Sevenson Environmental Services Inc, Niagara Falls, N.Y. |
CON
|
52/57
|
Carollo Engineers Inc., Walnut Creek, Calif. |
DES
|
53/54
|
Hazen and Sawyer P.C., New York, N.Y. |
DES
|
54/58
|
Clean Earth Inc., Hatboro, Pa. |
CM-PM
|
55/67
|
Woodard & Curran Inc., Portland, Maine |
DES
|
56/56
|
SCS Engineers, Long Beach, Calif. |
DES
|
57/63
|
ENTACT LLC, Grapevine, Texas |
CSL
|
58/71
|
Allan Myers, Worcester, Pa. |
CON
|
59/55
|
Wharton-Smith Inc., Lake Monroe, Fla. |
CON
|
60/53
|
O'Brien & Gere, Syracuse, N.Y. |
CSL
|
61/69
|
Terracon Consultants Inc., Olathe, Kansas |
CSL
|
62/92
|
Lyles Construction Group, Fresno, Calif. |
CON
|
63/59
|
Remedial Construction Services L.P., Houston, Texas |
CON
|
64/82
|
Rice Lake Construction Group, Deerwood, Minn. |
CON
|
65/73
|
Pepper Construction Group, Chicago, Ill. |
CM-PM
|
66/40
|
WorleyParsons Ltd., North Sydney, NSW, Australia |
CSL-DES
|
67/61
|
Michael Baker International, Pittsburgh, Pa. |
DES
|
68/75
|
Apex Cos. LLC, Rockville, Md. |
CSL/CON/CM-PM
|
69/**
|
Envirocon, Missoula, Mont. |
CON
|
70/84
|
Atkins North America, Tampa, Fla. |
CSL
|
71/64
|
ecology and environment Inc., Lancaster, N.Y. |
CSL
|
72/60
|
SNC-Lavalin Inc., Montreal, Quebec, Canada |
CSL
|
73/70
|
Hatch Mott McDonald, Iselin, N.J. |
DES
|
74/93
|
Casey Industrial Inc., Westminster, Colo. |
CON
|
75/80
|
EA Engineering, Science, and Technology Inc., Hunt Valley, Md. |
CSL
|
76/88
|
Haley & Aldrich Inc., Burlington, Mass. |
CSL
|
77/66
|
Gilbane Building Co., Providence, R.I. |
CON
|
78/94
|
Trinity Consultants, Dallas, Texas |
CSL
|
79/81
|
Los Alamos Technical Consultants Inc., Albuquerque, N.M. |
CON
|
80/78
|
Groundwater & Environmental Services Inc., Neptune, N.J. |
CSL-CON
|
81/65
|
C.H. Nickerson & Co. Inc, Torrington, Conn. |
CON
|
82/90
|
Environmental Restoration LLC, St. Louis, Mo. |
CON
|
83/98
|
Anchor QEA LLC, Seattle, Wash. |
CSL
|
84/**
|
J.R. Filanc Construction Co. Inc, Escondido, Calif. |
CON
|
85/**
|
Hatch Group, Mississauga, Ontario, Canada |
DES
|
86/85
|
Max Foote Construction Co. Inc., Mandeville, La. |
CON
|
87/126
|
Cascade Drilling L.P., Woodinville, Wash. |
CSL
|
88/111
|
HydroGeoLogic Inc., Reston, Va. |
CON
|
89/72
|
Crowder Construction Co., Charlotte, N.C. |
CON
|
90/95
|
Civil & Environmental Consultants, Inc., Pittsburgh, Pa. |
DES/CON
|
91/89
|
GZA GeoEnvironmental Inc., Norwood, Mass. |
CSL
|
92/118
|
Environmental Quality Management, Inc., Cincinnati, Ohio |
CON
|
93/87
|
USA Environment LP, Houston, Texas |
CON
|
94/100
|
SWCA Environmental Consultants, Phoenix, Ariz. |
CSL
|
95/101
|
Shook Construction Co., Dayton, Ohio |
CON
|
96/83
|
Crossland Heavy Contractors Inc., Columbus, Kansas |
CON
|
97/109
|
Langan Engineering & Environmental Services, Elmwood Park, NJ |
DES/CSL
|
98/112
|
Kennedy/Jenks Consultants Inc., San Francisco, Calif. |
DES
|
99/110
|
EBI Consulting, Burlington, Mass. |
CSL
|
100/**
|
Brasfield & Gorrie L.L.C., Birmingham, Ala. |
CON
|