| Massachussetts | | Contact: | David C Cowen, AIA | | Phone: | (800) 813-1753 | | Fax: | (781) 229-0851 | | Address: | 50 Mall Road, Suite 210 Burlington, MA 01803 | | |
| | | Southern New Jersey | | Contact: | Alan Meade, P.E. | | Phone: | (800) 883-1976 | | Fax: | (856) 428-5439 | | Address: | 20 Brace Road, Suite 112 Cherry Hill, NJ 08034 | | |
| | Northern New Jersey | | Contact: | Harold Ehrlich | | Phone: | (800) 695-3139 | | Fax: | (973) 683-0883 | | Address: | 100 E. Hanover Ave., Suite 305 Cedar Knolls, NJ 07927 | | |
| | Western New York | | Contact: | Joseph McHugh P.E. | | Phone: | (607) 722-3720 | | Fax: | (607) 722-3790 | | Address: | 19 Chenango St., 5th Floor Binghamton, NY 13901 | | |
| | Long Island | | Contact: | Harold Ehrlich | | Phone: | (516) 742-6288 | | Fax: | (516) 294-8679 | | Address: | 340 Willis Ave., Mineola, NY 11501 | | |
| | Upstate New York | | Contact: | Arthur Faherty | | Phone: | (800) 706-6542 | | Fax: | (518) 373-2766 | | Address: | 12 Corporate Drive, Clifton Park, NY 12065 | | |
| | Ohio | | Contact: | Gary Derian, P.E. | | Phone: | (800) 654-4344 | | Fax: | (614) 221-4470 | | Address: | 503 S. Front Street, Suite 205 Columbus, OH 43215 | | |
| | Central Pennsylvania and Philadelphia | | Contact: | Bartley J. Eckhardt, P.E. | | Phone: | (800) 813-6736 | | Fax: | (717) 293-8076 | | Address: | 354 North Prince Street, Lancaster, PA 17603 | | |
| | Pittsburgh Area | | Contact: | Thomas P. Lacek, P.E. | | Phone: | (800) 813-6735 | | Fax: | (724) 772-2256 | | Address: | 404 Commerce Park Drive, Cranberry Township, PA 16066 | | |
| | South Carolina | | Contact: | Stephen E. Fournier, P.E. | | Phone: | (843) 722-0119 | | Fax: | (843) 722-8670 | | Address: | 215 East Bay Street, Suite 203 Charleston, SC 29401 | | |
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