Clients: Utilities
- 24 Seven Utility Services
- American Electric Power
- Arizona Public Service
- Big Rivers Electric
- Boston Edison
- Brooklyn Union Gas
- Carolina Power & Light
- City of Austin Electric Utility
- Consumer Gas
- Dakota Electric Supply
- Eastern Electricity
- Edison First Power
- Electric Lightwave
- Electric Power Board of Chattanooga
- Florida Power & Light
- Franklin Electric
- Georgia-Pacific
- Green Mountain Energy
- Gulf Power
- Houston Light & Power
- Kansas City Power & Light
- Kennedy Utilities Services
- Lincoln Electric
- Los Angeles Department of Water & Power
- Minnesota Power
- Nebraska Public Power
- New Mexico State Energy
- New York Power Authority
- Northeast Utilities
- Nuclear Electric
- Oregon Electric Group
- Pacific Gas & Electric
- Pennsylvania Power & Light
- PowerGen
- Reliant Energy
- ScottishPower
- Southern California Edison
- Southern Energy California
- Southwestern Electric Power
- Tucson Electric Power
- TXU Energy
- Wabash Valley Power
- Washington Gas
- Western Kentucky Energy





