Corporate Headquarters
Thorn Hill Industrial Park
530 Keystone Drive
Warrendale, PA 15086
Phone: (724) 772-2555
Facsimile: (724) 778-5146

Gas Circuit Breakers Division - High Voltage
Thorn Hill Industrial Park
512 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) 778-5149

Gas Circuit Breakers Division - Medium Voltage
Thorn Hill Industrial Park
510 Keystone Drive
Warrendale, PA 15086
Phone: (724) 772-2555
Facsimile: (724) 779-3368

Ozone Water Treatment Systems Division
Thorn Hill Industrial Park
530 Keystone Drive
Warrendale, PA 15086
Phone: (724) 772-2555
Facsimile: (724) 778-5149

Power Systems Engineering Services Division
Thorn Hill Industrial Park
530 Keystone Drive
Warrendale, PA 15086
Phone: (724) 772-2555
Facsimile: (724) 778-5149

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

Substation Division
Thorn Hill Industrial Park
547 Keystone Drive
Warrendale, PA 15086
Phone: (724) 772-2555
Facsimile: (724) 778-3149

Transportation Systems Division
Thorn Hill Industrial Park
520 Keystone Drive
Warrendale, PA 15086
Phone: (724) 772-2555
Facsimile: (724) 778-3145

Generation Systems Division
100 Colonial Center Parkway, Suite 400
Lake Mary, FL 32746
Phone: (407) 322-7559
Facsimile: (407) 322-5519

Uninterruptible Power Supplies - Southeast
Chance Johnson, Regional Sales Manager
2572 Grand Lakeside Drive
Palm Harbor, FL 34684
Phone: (727) 938-6979
chance.johnson@meppi.com

Power Systems Group - Southeast
Wayne Dunham, Regional Vice President
9817-2 Emerald Point Drive
Charlotte, NC 28278
Phone: (704) 588-3126
 

Uninterruptible Power Supplies - Northeast
David Johnson, Regional Sales Manager
21 Joseph's Way
Shillington, PA 19607 
Phone: (610) 796-2469
david.johnson@meppi.com

Power Systems Group - Northeast
Noah Tai, Regional Vice President
19 Honeyflower Lane
Princeton Junction, NJ 08550
Phone: (609) 275-0767
Facsimile: (609) 275-0768
noah.tai@meppi.com

Uninterruptible Power Supplies - Southwest
Paul Darwin, Regional Sales Manager
8740 Thistle Ridge Ter.
Fort Worth, TX 76123
Phone: (682) 841-7936
paul.darwin@meppi.com

Power Systems Group - Mid America
John Perulfi 
Phone: (314) 843-3066
john.perulfi@meppi.com

Uninterruptible Power Supplies - Midwest
Mike Boyd, Regional Sales Manager
563 Blackthorn Drive
Crystal Lake, IL 60014
Phone: (815) 701-6813
michael.boyd@meppi.com

Power Systems Group - North
Dick Williams, Regional Vice President
Thorn Hill Industrial Park
530 Keystone Drive
Warrendale, PA 15086
Phone: (724) 772-2122