Horizon Engineering Associates Main Office 30 Broad Street Suite 1500 New York, NY 10004 212-400-3700
Horizon Engineering Associates Long Island 800 Veterans Memorial Highway Suite 301 Hauppauge, NY 11788 631-240-0923
Horizon Engineering Associates Syracuse 358 West Jefferson Street Suite 300 Syracuse, NY 13202 315-350-3935
Horizon Engineering Associates Charlotte 11925 Sam Roper Drive Suite D Charlotte, NC 28269 704-523-5354
Horizon Engineering Associates St. Louis 111 West Port Plaza Drive Suite 600 St. Louis, MO 63146 314-266-0124
Horizon Engineering Associates Portsmouth 170 Commerce Way Suite 200 Portsmouth, NH 03801 212-400-3700
Horizon Engineering Associates Chandler, AZ 450 E. Warner Road, Suite 1 Chandler, AZ 85225 (212) 400-3700