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Firm
License
Firm Name Address City State Zip Expiration Date
(mm/yy)
2 WHITMAN, REQUARDT & ASSOCIATES, LLP 801 SOUTH CAROLINE STREET BALTIMORE MD 21231 09/30/25
3 TETRA TECH, INC. 3475 E. FOOTHILL BLVD. PASADENA CA 91107 09/30/25
5 PARSONS TRANSPORTATION GROUP INC. 1422 S. Tryon St., Suite 800 Charlotte NC 28203 09/30/25
9 VANDEMARK & LYNCH, INC. 4305 MILLER ROAD WILMINGTON DE 19802-1901 09/30/25
26 FURLOW ASSOCIATES, INC. 650 Naamans Road, Suite 211 CLAYMONT DE 19703 09/30/25
28 GEORGE, MILES & BUHR, LLC 206 WEST MAIN STREET SALISBURY MD 21801 09/30/25
29 GEORGE & LYNCH, INC. 150 LAFFERTY LANE DOVER DE 19901 09/30/25
36 CH2M HILL, INC. c/o CT-BL 120 S. Central Ave Ste 400 Clayton MO 63105 09/30/25
39 RUMMEL, KLEPPER & KAHL, LLP 700 East Pratt Street, Suite: 500 BALTIMORE MD 21202 09/30/25
41 WESTON SOLUTIONS, INC. ATTN: LAW DEPT. 1400 Weston Way,P.O. BOX 2653 WEST CHESTER PA 19380 09/30/25
55 WSP USA Inc. One Penn Plaza, 4th Floor New York NY 10119 09/30/25
56 DEWBERRY ENGINEERS INC. 8401 ARLINGTON BLVD. FAIRFAX VA 22031 09/30/25
57 MICHAEL BAKER INTERNATIONAL, INC. 500 Grant Street, Ste 5400 Pittsburgh PA 15219 09/30/25
59 HILLCREST ASSOCIATES, INC. PO Box 1180 Hockessin DE 19707 09/30/25
65 MODJESKI AND MASTERS, INC. 100 Sterling Parkway, Suite 302 Mechanicsburg PA 17050 09/30/25
76 PICKERING, CORTS & SUMMERSON, INC. 642 Newtown-Yardley Road, Suite 300 NEWTOWN PA 18940 09/30/25
77 KEAST & HOOD CO. 1635 Market Street, Suite 1705 PHILADELPHIA PA 19103 09/30/25
104 McBRIDE & ZIEGLER, INC. 2607 EASTBURN CENTER NEWARK DE 19711 09/30/25
107 BUCHART-HORN, INC. 445 W. PHILADELPHIA STREET P.O. BOX 15040 YORK PA 17401 09/30/25
113 CENTURY ENGINEERING, LLC 10710 Gilroy Road Hunt Valley MD 21031 09/30/25
133 FREDERICK WARD ASSOCIATES, INC. 5 SOUTH MAIN STREET P.O. BOX 727 BEL AIR MD 21014 09/30/25
135 URBAN ENGINEERS, INC. 530 WALNUT STREET, 7TH FLOOR PHILADELPHIA PA 19106 09/30/25
138 MCFARLAND-JOHNSON, INC. 49 Court Street, Suite 240 Binghamton NY 13901 09/30/25
156 DUFFIELD ASSOCIATES, LLC 5400 LIMESTONE ROAD WILMINGTON DE 19808 09/30/25
168 KCI TECHNOLOGIES, INC. 936 Ridgebrook Road Sparks MD 21152 09/30/25