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top environmental firms
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2007

HOW TO USE THE TABLES

Rankings: Companies are ranked below based on gross revenue they reported in 2006 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 July 2, 2007 issue of ENR. Please click here for more information on ordering back issues.


Click below for earlier editions:
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  • 2003 edition
  • ENR "Top" lists or selections from the directory databases are available on pressure-sensitive labels or computer printouts. Included are the principal officer's name and title, company name and address, and phone and fax numbers. For information on purchasing mailing lists, click here.

     

    RANK FIRM  
    2007 2006   TYPE OF FIRM
    1
    1
    CH2M Hill Ltd., Englewood, Colo.†
    DES
    2
    3
    Veolia Environnement-North America, Lombard, Ill.†
    OTH
    3
    2
    Bechtel, San Francisco, Calif.†
    DES/CON
    4
    12
    The Shaw Group Inc., Baton Rouge, La.†
    CON
    5
    4
    Washington Group Int’l Inc., Boise, Idaho†
    CM/PM
    6
    5
    URS Corp., San Francisco, Calif.†
    CSL
    7
    7
    Tetra Tech Inc., Pasadena, Calif.†
    DES
    8
    8
    Fluor Corp., Irving, Texas†
    CON
    9
    6
    Parsons Corp., Pasadena, Calif.†
    DES
    10
    10
    MWH Global Inc., Broomfield, Colo.†
    DES
    11
    14
    Black & Veatch, Overland Park, Kan.†
    CON/DES
    12
    9
    Earth Tech Inc., Long Beach, Calif.
    CSL
    13
    13
    AECOM Technology Corp., Los Angeles, Calif.†
    DES
    14
    16
    Jacobs Engineering Group Inc., Pasadena, Calif.
    DES/CON
    15
    11
    Battelle, Columbus, Ohio†
    CON/CM/PM
    16
    15
    CDM, Cambridge, Mass.†
    DES
    17
    24
    Kiewit Corp., Omaha, Neb.†
    CON
    18
    17
    Environ. Resources Management, Exton, Pa.† (1)
    CSL
    19
    18
    ARCADIS, Highlands Ranch, Colo.†
    CON
    20
    21
    SAIC, San Diego, Calif. (2)
    CSL
    21
    20
    Layne Christensen Co., Mission Woods, Kan.†
    CON
    22
    19
    The Walsh Group Ltd., Chicago, Ill.†
    CON
    23
    25
    Golder Associates Corp., Atlanta, Ga.†
    CSL
    24
    27
    AMEC, Philadelphia, Pa.
    CSL
    25
    28
    Malcolm Pirnie Inc., White Plains, N.Y.
    CSL
    26
    30
    HDR, Omaha, Neb.†
    DES
    27
    22
    LVI Services Inc., New York, N.Y.
    CON
    28
    26
    Weston Solutions Inc., West Chester, Pa.†
    CSL
    29
    31
    Garney Holding Co., Kansas City, Mo.†
    CON
    30
    32
    The Louis Berger Group Inc., East Orange, N.J.†
    CM/PM
    31
    35
    MACTEC Inc., Alpharetta, Ga.†
    CSL
    32
    44
    Stantec Inc., Edmonton, Alberta, Canada†
    DES/CSL
    33
    40
    Alberici Corp., St. Louis, Mo.†
    CON
    34
    37
    Conestoga-Rovers & Assocs., Niagara Falls, N.Y.†
    DES
    35
    36
    Brown and Caldwell, Walnut Creek, Calif.†
    DES
    36
    34
    Western Summit Constructors Inc., Denver, Colo.
    CON
    37
    33
    Skanska USA Inc., Whitestone, N.Y.†
    CON
    38
    38
    Sevenson Environmental services Inc., Niagara Falls, N.Y.†
    CON
    39
    **
    TRC Cos. Inc., Lowell, Mass.†
    CSL/DES
    40
    43
    PCL Construction Enterprises Inc., Denver, Colo.†
    CON
    41
    39
    Pizzagalli Construction Co., South Burlington, Vt.
    CON
    42
    **
    EQ-The Environmental Quality Co., Wayne, Mich.†
    OTH
    43
    69
    Environmental Quality Management Inc., Cincinnati, Ohio†
    CON
    44
    45
    ENVIRON, Arlington, Va.†
    CSL
    45
    61
    Barnard Construction Co. Inc., Bozeman, Mont.
    CON
    46
    47
    Parsons Brinckerhoff Inc., New York, N.Y.†
    DES
    47
    51
    Burns & McDonnell, Kansas City, Mo.
    DES
    48
    48
    Infiltrator Systems Inc., Old Saybrook, Conn.
    EQP
    49
    52
    Wharton-Smith Inc., Sanford, Fla.
    CON
    50
    53
    Carollo Engineers P.C., Phoenix, Ariz.†
    DES

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