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    Contact Brennan

    To inquire about a career opportunity, please email us at jobs@jfbrennan.com or visit our Careers page.

    Corporate Headquarters

    J.F. Brennan Company Main Office
    818 Bainbridge Street
    La Crosse, WI 54603

    Brennan Marine — La Crosse, WI
    818 Bainbridge Street
    La Crosse, WI 54603

    Phone:
    608-784-7173

    Brennan Marine — BURLINGTON

    205 Washington Street, Suite 201
    Burlington, IA 52601

     

    Phone:
    319-208-1185

    DAM CONSTRUCTION OFFICE

    2401 W Waukau Ave
    Oshkosh, WI 54904

     

    Phone:

     920-376-7023

    Duluth AREA Office

    802 Garfield Ave, Suite 102
    Duluth, MN 55802


    Phone:
    218-349-5237

    Eastern Area Dive & Marine Construction Office

    192 Smith Street
    North Kingstown, RI 02852

     

    Phone:
    608-881-8914

    Environmental Services Office

    25 Braintree Hill, Suite 3307  
    Braintree, MA 02184
     
     

    Phone:
    781-971-5156

    Hydrographic Survey Office

    1048 Glory Road, Suite E
    Green Bay, WI 54304


    Phone:
    920-632-6192

    Illinois Marine Construction & Dive Office

    501 Illinois Ave
    Ottawa, IL 61350

     

    Phone:
    815-433-5228

    MICHIGAN Office

    7888 Childsdale Ave NE
    Suite B
    Rockford, MI 49341
     
     

     

    Mid-South Office

    6410 Kentucky Dam Road
    Paducah, KY 42003
     
     

    Phone:
    270-426-9088

    Northern California Office

    1805 Railroad Ave
    Winters, CA 95694
     
    Phone:
    805-639-2205
     

    St. Paul Area Office

    644 Bayfield Street, Suite 220
    St. Paul, MN 55107

    Phone:
    651-224-3007

    Pacific Northwest Office

    26108 Pioneer Way NW
    Poulsbo, WA 98370
     .
    .

     

    Southern California Office

    4411 DuPont Court, Suite 130
    Ventura, CA 93003
     
    Phone:
    805-639-2205
     

    24 Hour Dispatch

    Phone:
    1-800-658-9027

    Connect with us using the form below:
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    © 2025 J.F. Brennan Company, Inc.

    Main Office Location:

    818 Bainbridge Street
    La Crosse, WI 54603
    Phone: 608/784-7173
    Fax: 608/785-2090
    Payroll Fax: 608/881-6519

    All Brennan Locations

    Careers

    24 Hour Dispatch:

    24/7 Service
    Call 800-658-9027

    Workplace Posters:

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    © 2025 J.F. Brennan Company, Inc.