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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
    101
    106
    GZA GeoEnvironmental Inc., Norwood, Mass.†
    CSL
    102
    85
    PDG Environmental Inc., Pittsburgh, Pa.
    CON
    103
    97
    Jones & Stokes Associates Inc., Sacramento, Calif.
    CSL
    104
    109
    Carlin Contracting Co. Inc., Waterford, Conn.
    CON
    105
    102
    Safety and Ecology Corp., Knoxville, Tenn.†
    CON
    106
    105
    Shook National Corp., Dayton, Ohio†
    CON
    107
    41
    The Morganti Group Inc., Danbury, Conn.
    OPS
    108
    **
    RBF Consulting, Irvine, Calif.
    DES
    109
    104
    Greeley and Hansen LLC, Chicago, Ill.†
    DES
    110
    99
    COMANCO Environmental Corp., Plant City, Fla.
    CON
    111
    71
    Cajun Constructors Inc., Baton Rouge, La.
    CON
    112
    132
    Barr Engineering Co., Minneapolis, Minn.
    CSL
    113
    141
    Traylor Bros. Inc., Evansville, Ind.
    CON
    114
    111
    HEPACO Inc., Charlotte, N.C.†
    OPS
    115
    117
    Irex Corp., Lancaster, Pa.†
    CON
    116
    128
    SWCA Inc., Phoenix, Ariz.
    CSL
    117
    134
    Professional Service industries Inc., Oakbrook Terrace, Ill.
    DES
    118
    98
    TolTest Inc., Maumee, Ohio
    CON
    119
    119
    Parametrix Inc., Sumner, Wash.
    DES
    120
    122
    Roux Associates Inc., Islandia, N.Y.†
    CSL
    121
    75
    The Conti Group, South Plainfield, N.J.
    CON
    122
    121
    Apex Companies LLC, Rockville, Md.
    CSL
    123
    **
    Auburn Constructors Inc., Sacramento, Calif.
    CON
    124
    148
    Eagle Contracting LP, Keller, Texas
    CON
    125
    **
    Merrick & Co., Aurora, Colo.†
    DES
    126
    158
    ADS LLC, Huntsville, Ala.†
    CSL
    127
    161
    Decommissioning & Environ. management Co., West Seneca, N.Y.
    CON
    128
    92
    Slayden Construction Group Inc., Stayton, Ore.
    CON
    129
    **
    Building Crafts Inc., Wilder, Ky.
    CON
    130
    108
    Versar Inc., Springfield, Va.†
    CM/PM
    131
    **
    EBI Consulting, Burlington, Mass.
    CSL
    132
    151
    Haren Construction Co. Inc., Etowah, Tenn.
    CON
    133
    130
    Civil & Environmental Consultants Inc., Pittsburgh, Pa.
    DES
    134
    150
    HydroGeoLogic Inc., Herndon, Va.
    CON
    135
    136
    Langan Engineering & Environ.  Services Inc., Elmwood Park, N.J.
    DES/CSL
    136
    124
    Pepper Construction Group, Chicago, Ill.†
    CON
    137
    142
    AKRF Inc., New York, N.Y.
    CSL
    138
    131
    Weston & Sampson Engineers Inc., Peabody, Mass.†
    DES
    139
    140
    Environmental Consulting & Technology Inc., Gainesville, Fla.
    CSL
    140
    133
    Judy Construction Co., Cynthiana, Ky.
    CON
    141
    147
    ET Environmental Corp. LLC, Atlanta, Ga.
    CON
    142
    165
    CPS Environmental Group, Long Beach, Calif.†
    CON
    143
    138
    Precision Environmental Co., Independence, Ohio†
    CON
    144
    139
    Hayes, Seay, Mattern & Mattern Inc., Roanoke, Va.†
    DES
    145
    159
    ESA, San Francisco, Calif.
    CSL
    146
    153
    S&ME Inc., Raleigh, N.C.
    DES
    147
    123
    Wade Trim Group, Taylor, Mich.†
    DES
    148
    149
    TN & Associates Inc., Milwaukee, Wis.
    CON
    149
    137
    Eberline Services Inc., Albuquerque, N.M.†
    OPS
    150
    154
    Mosser Construction Inc., Fremont, Ohio†
    CON

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