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Firm
License
Firm Name Address City State Zip Expiration Date
(mm/yy)
3019 THE REINFORCED EARTH COMPANY 45610 Woodland Road, Suite 200 Sterling VA 20166 09/30/25
2830 THE ROBERT B. BALTER COMPANY 18 MUSIC FAIR ROAD OWINGS MILLS MD 21117 09/30/25
3645 The Rock Brook Consulting Group 20 South Middlesex Avenue, Suite B Monroe Township NJ 08831 09/30/25
4420 The Stebbins Engineering and Manufacturing Company 363 Eastern Boulevard Watertown NY 13601-3140 09/30/25
593 THE STELLAR GROUP, INC. 2900 HARTLEY ROAD JACKSONVILLE FL 32257 09/30/25
4704 The Structures Group, Inc. 1200 Old Colony Lane Williamsburg VA 23185 09/30/25
622 THE TRAFFIC GROUP, INC. 9900 Franklin Square Drive Baltimore MD 21236 09/30/25
2562 THE TRI-M GROUP, LLC 206 GALE LANE KENNETT SQUARE PA 19348 09/30/25
4111 The Vertex Companies, LLC 400 Libbey Parkway Weymouth MA 02189 09/30/25
5257 the w-t group, llc 2675 pratum ave hoffman estates IL 60192 09/30/25
546 THE WILSON T. BALLARD COMPANY 17 GWYNNS MILL COURT OWINGS MILLS MD 21117 09/30/25
5417 Thermaltech Engineering, Inc. 3960 Red Bank Road, Suite 250 Cincinnati OH 45227 09/30/25
4018 Theta Consulting LLC PO Box 1804 Doylestown PA 18901 09/30/25
2233 THORNTON TOMASETTI, INC. 120 Broadway, 15th Floor NEW YORK NY 10271 09/30/25
747 THORSON BAKER & ASSOCIATES, INC. 3030 WEST STREETSBORO ROAD RICHFIELD OH 44286 09/30/25
5101 THP Limited, Inc. 221 E. 4th Street Suite 1150 Cincinnati OH 45202 09/30/25
4146 Three Chord C.E.M., LLC 20180 Gum Island Rd Georgetown DE 19947 09/30/25
5462 Three Sixty Engineering, Inc. 751 Pine Ridge Road, Suite 360 Golden CO 80403 09/30/25
4087 Thriven Design, Inc. 756 Haddon Avenue Collingswood NJ 08108 09/30/25
5293 THYSSENKRUPP UHDE USA, LLC 15990 N. Barkers Landing, Suite 300 Houston TX 77079 09/30/25
5264 Tiber Engineering Group PO Box 570 Ellicott City MD 21041 09/30/25
4426 Tier 1 Utility Design, Inc. 6 Commerce Drive, Suite 200 Reading PA 19607 09/30/25
4279 Tilson Technology Management, Inc. 16 Middle Street, 4th Fl. Portland ME 04101 09/30/25
2769 Timber Tech Engineering, Inc. 22 Denver Rd. Suite B Denver PA 17517 09/30/25
4913 Timmons Group 1001 Boulders Parkway Suite300 North Chesterfield VA 23225 09/30/25