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top environmental firms
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Rankings: Companies are ranked below based on gross revenue they reported in 2007 for providing environmental services and products to domestic and international markets. The proportion of a firm’s gross environmental services revenue to its total gross revenue is provided as a percentage. Revenue figures are in $ millions. Percentages are rounded up or down to generate whole numbers.

Type of Firm: Designations are based on the largest proportion of environmental revenue reported by firms in seven categories: DES=Design, consulting and/or studies; CON=Construction and/or remediation; PM=Project and/or program management; EQP=Equipment and/or product manufacture; R&D=Technology and/or research & development; LAB=Laboratory and/or analytical services; OPS=Contract operations; OTH=Services not included in the above categories. Two or more designations appear if the largest proportion of revenue is evenly split between two or more categories, or if these categories are within 5% of each other. Companies not ranked among the Top 200 Environmental Firms in 2005 are designated by this symbol (**).

More detailed information on the Top 200 Environmental Firms can be found in the June 30/July 7, 2008 issue of ENR. Please click here for more information on ordering back issues.

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    The Top 200 Environmental Firms for 2008

    2008 2007    
    1 1 CH2M Hill Ltd., Englewood, Colo.† DES/CSL
    2 3 Bechtel, San Francisco, Calif.† CON/DES
    3 2 Veolia Environnement N.A., Chicago, Ill.† OPS
    4 6 URS Corp., San Francisco, Calif.† CSL
    5 11 Black & Veatch, Overland Park, Kan.† CON
    6 7 Tetra Tech Inc., Pasadena, Calif.† DES
    7 ** EnergySolutions LLC, Salt Lake City, Utah† OPS/CON/CP
    8 10 MWH Global Inc., Broomfield, Colo.† DES/CON
    9 8 Fluor Corp., Irving, Texas† CON
    10 9 Parsons Corp., Pasadena, Calif.† DES/CSL/CON
    11 14 Jacobs Engineering Group Inc., Pasadena, Calif. DES
    12 12 Earth Tech Inc., Long Beach, Calif. OPS
    13 4 The Shaw Group Inc., Baton Rouge, La.† CON
    14 15 Battelle, Columbus, Ohio† CSL
    15 16 CDM, Cambridge, Mass.† DES
    16 13 AECOM Technology Corp., Los Angeles, Calif.† DES
    17 19 ARCADIS, Highlands Ranch, Colo.† CON
    18 20 Science Applications International Corp. (SAIC), San Diego, Calif. CSL
    19 23 Golder Assocates Corp., Atlanta† CSL
    20 18 Environmental Resources Management, Exton, Pa.† CSL
    21 17 Kiewit Corp., Omaha, Neb.† CP
    22 21 Layne Christensen Co., Mission Woods, Kan.† CON
    23 22 The Walsh Group Ltd., Chicago, Ill.† CON
    24 ** Insituform Technologies Inc., Chesterfield, Mo.† CON
    25 37 Skanska USA Inc., Whitestone, N.Y.† CON
    26 26 HDR, Omaha, Neb.† DES
    27 28 Weston Solutions Inc., West Chester, Pa.† CON
    28 24 AMEC, Philadelphia, Pa. DES
    29 27 LVI Services Inc., New York, N.Y. CON
    30 40 PCL Construction Enterprises Inc., Denver, Colo.† CON
    31 25 Malcolm Pirnie Inc., White Plains, N.Y. DES
    32 29 Garney Holding Co., Kansas City, Mo.† CON
    33 32 Stantec Inc., Edmonton, Alberta, Can.† DES
    34 31 MACTEC Inc., Alpharetta, Ga.† CSL
    35 30 The Louis Berger Group, Morristown, N.J.† CP
    36 33 Alberici Corp., St. Louis, Mo.† CON
    37 35 Brown and Caldwell, Walnut Creek, Calif.† DES
    38 34 Conestoga-Rovers & Associates, Niagara Falls, N.Y.† DES
    39 47 Burns & McDonnell, Kansas City, Mo. DES
    40 38 Sevenson Environmental Services Inc., Niagara Falls, N.Y.† CON
    41 81 WorleyParsons, Long Beach, Calif.† DES
    42 41 Pizzagalli Construction Co., So. Burlington, Vt. CON
    43 44 ENVIRON, Arlington, Va.† CSL
    44 46 Parsons Brinckerhoff Inc., New York, N.Y.† DES
    45 56 PBS&J, Tampa, Fla. DES/CP
    46 42 EQ-The Environmental Quality Co., Wayne, Mich.† OTH
    47 39 TRC Companies Inc., Lowell, Mass.† DES
    48 51 ATC Group Services Inc., Woburn, Mass.† CSL
    49 36 Western Summit Constructors Inc., Denver, Colo. CON
    50 ** Halcrow, New York, N.Y.† DES/CSL

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    Ranks | 1-50| 51-100| 101-150| 151-200 | Alphabetical List |

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