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Flood Zone Determination Companies

This is a list of companies that determine flood zones for properties. Please Note: FEMA does not attest to the quality of accuracy of the services offered. FEMA does not approve, endorse, regulate or otherwise sanction any company on this list.

Some of the companies listed below are also members of the National Flood Association (NFA). NFA maintains a list of active members that is available on their website:

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Displaying 145 - 156 of 164 results

  • STORMWATER DETENTION MAINTENANCE & INSPECTION
    Rick Celender
    207 Elfinwild Road, Allison Park, PA, 15101
    (412) 760-0136 | Fax: (412) 486-2947
    Service Area: Pittsburgh & Southwest PA
  • STORMWATER RESEARCH GROUP (SRG)
    Mark Bohrer, President, Director of Operations
    6808 Hill Meadow Drive, Austin, TX, 78736
    (800) 447-7893 | Fax: (800) 823-9878
    Service Area: Nationwide & U.S. Territories
  • SURVEYING TECHNOLOGIES, INC. (SURTECH)
    Peter C. Kirch, PLS & PP, President
    43 Spring Street, Ramsey, NJ, 07446
    (201) 236-0033 | Fax: (201) 236-1601
    https://www.surtech.com
    Service Area: NJ, NY, PA
  • TAMMAC CREDIT SERVICES, INC.
    Mark Helmer, Executive Vice President
    100 Commerce Blvd., Suite 203, Wilkes-Barre, PA, 18702
    (570) 821-7380 | Fax: (570) 822-0153
    Service Area: Nationwide
  • TENNESSEE CONSULTING & RESEARCH SERVICES
    James H. Weiser
    219 Jennings Circle, Tullahoma, TN, 37388
    (931) 455-0216
    Service Area: Middle TN
  • THE LEONARD GROUP, INC.
    Kevin Leonard, President
    7700 Irvine Center Drive, Suite 800, Irvine, CA, 92618
    (888) SHOP-IT1 | Fax: (310) 546-8712
    Service Area: Nationwide
  • THE PINNELL GROUP
    Daniel N. Pinnell, R.P.L.S.
    25207 Oakhurst Drive, Spring, TX, 77386
    (281) 363-8700 | Fax: (281) 419-2929
    https://www.thepinnellgroup.com
    Service Area: Florida, Oklahoma and Texas
  • THOMPSON, DREESSEN, & DORNER, INC.
    Chris Dorner
    10836 Old Mill Road, Omaha, NE, 68154
    (402) 330-8860 | Fax: (402) 330-5866
    https://www.td2co.com
    Service Area: Nebraska and Iowa
  • TIDEWATER FLOOD RESEARCH, INC.
    Joan Amerson, President
    Live Oak Lane, Rt 1, Box 1746, Townson, GA, 31331
    (912) 832-5665
    Service Area: Southeast Georgia
  • U.S. FLOOD RESEARCH, INC.
    Terry L. Tyson, President & CEO
    1316 Wall Street, Suite LL, P.O. Box 1221, Everett, WA, 98206-1221
    (800) 443-5663, (206) 259-1960 | Fax: (800) 892-2223, (206) 339-9163
    Service Area: Nationwide
  • UNITED ONE RESOURCES
    Louis J. Cesare, President, James Smith, Sr. Vice President
    270 North Sherman St., Wilkes-Barre, PA, 18702
    (570) 824-7811 | Fax: (570) 824-9502
    https://www.unitedresources.com
    Service Area: Nationwide
  • VALUE ONE
    Enrique T. Casado
    P.O. Box 194536, Hato Rey Station, PR, 00919
    (787) 261-5353 | Fax: (787) 261-5370
    Service Area: Puerto Rico and Surrounding Islands

FEMA will attempt to maintain a current list but relies on information provided by listed companies. Unlisted companies that provide this service and want to be listed should fax a request and ask to be listed to the National Flood Insurance Program at (301) 918-1459.


Include the following information: Company name, Address, City, State Zip code, Phone number, Fax number, Indicate service area.

When choosing a company from this list, always consider what's being promised, including how they determine the flood zone and the degree of accuracy of their determination. Also consider the nature and content of any messages being sent to the mortgagor, and the options being provided to the mortgagor.