DELAWARE ASSOCIATION OF PROFESSIONAL ENGINEERS
92 Read's Way, Suite 208
New Castle, DE 19720
Phone: 302-323-4588
Email: office@dape.org
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Firm
License		 Firm Name Address City State Zip Expiration Date
(mm/yy)
2905 Professional Systems Engineering, LLC 100 W. Main St., Suite 400 Lansdale PA 19446 09/30/25
1085 BARTON ASSOCIATES, INC. 221 WEST PHILADELPHIA STREET, North Building YORK PA 17401 09/30/25
798 ELTON & THOMPSON, P.C. 100 W. Main Street, Suite 365 LANSDALE PA 19446 09/30/25
3321 NAVARRO & WRIGHT CONSULTING ENGINEERS, INC. 151 RENO AVENUE NEW CUMBERLAND PA 17070 09/30/25
691 TREFZ ENGINEERING, INC. 601 DRESHER ROAD, SUITE 275 HORSHAM PA 19044 09/30/25
266 ARRO CONSULTING, INC. 108 W. AIRPORT ROAD LITITZ PA 17543 09/30/25
2615 WILKINSON & ASSOCIATES INC. 1220 VALLEY FORGE RD., STE. 22 PHOENIXVILLE PA 19460 09/30/25
3339 DUTCHLAND, Inc. 160 Route 41 GAP PA 17527 09/30/25
2790 DIMITRI J. VERVERELLI, INC. 211 NORTH 13TH STREET PHILADELPHIA PA 19107 09/30/25
3331 PANY & LENTZ ENGINEERING COMPANY 609 HAMILTON STREET ALLENTOWN PA 18101 09/30/25
2356 MULHERN CONSULTING ENGINEERS & ASSOC., INC. 321 SOUTH YORK ROAD HATBORO PA 19040 09/30/25
2124 ARM GROUP INC. 1129 WEST GOVERNOR ROAD P.O. BOX 797 HERSHEY PA 17033 09/30/25
3907 Bohler Engineering PA, LLC 1600 Manor Drive Ste 200 Chalfont PA 18914 09/30/25
2404 ESE CONSULTANTS, INC. 1140 Virginia Drive/JHeverly Fort Washington PA 19034 09/30/25
3080 MELIORA ENVIRONMENTAL DESIGN, LLC 259 MORGAN STREET PHOENIXVILLE PA 19460 09/30/25
2048 ORNDORF & ASSOCIATES, INC. 8600 W CHESTER PIKE STE 201, Suite 201 Upper Darby PA 19082 09/30/25
4396 Susquehanna Civil Inc. 50 Grumbacher Road, Suite 10 York PA 17406 09/30/25
2996 MULHERN & KULP STRUCTURAL ENGINEERING, INC. 300 Brookside Avenue, Building 4, Suite 150 AMBLER PA 19002 09/30/25
2171 WEBBER/SMITH ASSOCIATES, INC. 20 Wright Ave Lititz PA 17543 09/30/25
2517 JBC ASSOCIATES, INC. 120 SOUTH WARNER ROAD, SUITE 100 KING OF PRUSSIA PA 19406 09/30/25
939 RETTEW ASSOCIATES, INC. 3020 COLUMBIA AVENUE LANCASTER PA 17603 09/30/25
745 MOORE ENGINEERING COMPANY 3637 COLUMBIA AVENUE LANCASTER PA 17603 09/30/25
3149 Robson Forensic, Inc. 1570 Fruitville Pike, Suite 300 Lancaster PA 17601 09/30/25
250 McCORMICK TAYLOR, INC. 1818 Market Street 16th Floor PHILADELPHIA PA 19103 09/30/25
635 PENNELL & WILTBERGER INC. 115 West Avenue, Suite 300 Jenkintown PA 19046 09/30/25