Corporate Headquarters
Thorn Hill Industrial Park
530 Keystone Drive
Warrendale, PA 15086
Phone: (724) 772-2555
Facsimile: (724) 772-2146

Diamond Vision Division
Thorn Hill Industrial Park
530 Keystone Drive
Warrendale, PA 15086
Phone: (724) 772-2555
Facsimile: (724) 772-2146

Gas Circuit Breakers Division
Thorn Hill Industrial Park
530 Keystone Drive
Warrendale, PA 15086
Phone: (724) 772-2555
Facsimile: (724) 772-2146

Power Systems Division. Industrial & Ozone Water Treatment Systems Division
and Substation Department.
Thorn Hill Industrial Park
530 Keystone Drive
Warrendale, PA 15086
Phone: (724) 772-2555
Facsimile: (724) 772-2149

Uninterruptible Power Supplies
Thorn Hill Industrial Park
530 Keystone Drive
Warrendale, PA 15086
Phone: (724) 772-2555
Facsimile: (724) 778-3146

Generation Systems Department
100 Colonial Center Parkway, Suite 2500
Lake Mary, FL 32746
Phone: (407) 322-7559

Ozone Systems Division
Thorn Hill Industrial Park
530 Keystone Drive
Warrendale, PA 15086
Phone: (724) 772-2555
Facsimile: (724) 772-2146

Transportation Systems Division
Thorn Hill Industrial Park
530 Keystone Drive
Warrendale, PA 15086
Phone: (724) 772-2555
Facsimile: (724) 772-2146

Transportation Systems Division Sales Office
1211 Avenue of the Americas, 43rd Floor
New York, NY 10036
Phone: (212) 704-6672
Facsimile: (212) 704-6676

Western Regional Office
Suite 107
2120 Foothill Blvd
LaVerne, CA 91750
Phone: (909) 447-8410

Southeastern Regional Office
9817-2 Emerald Point Drive
Charlotte, NC 28278
Phone: (704) 588-3126
Facsimile: (302) 371-4755

Mid America Regional Office
Suite 710
1415 North Loop West
Houston, TX 77008
Phone: (713) 802-9944
Facsimile: (713) 802-9603

Northern Regional Office
Thorn Hill Industrial Park
530 Keystone Drive
Warrendale, PA 15086
Phone: (724) 772-2555
Facsimile: (724) 772-2146

Northeast Regional Office
22 Ellsworth Drive
Princeton Junction, NJ 08550
Phone: (609) 275-0767
Facsimile: (609) 275-0768