- Access Gas Services
- Active Energy
- Active Renewable Marketing
- Alberta Energy Savings
- BGE Home
- Bullfrog Power Inc.
- Canada Energy
- Canadian RiteRate Energy
- Constellation New Energy
- Coweta-Fayette EMC Natural Gas
- Direct Energy
- Dominion East Ohio Energy
- Active Renewable Marketing
- Energy Savings (Manitoba) L.P.
- Energy Savings B.C.
- Enmax
- Epcor
- FireFly Energy
- First Choice Power
- Gas South
- Georgia Natural Gas
- Gexa Energy
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- Tetra Gas
- Green Mountain Energy Co.
- Infinite Energy
- Integrys Energy Services
- Interstate Gas Supply
- MXenergy
- Ohio Natural Gas
- Ontario Energy Savings
- Reliant Energy
- SCANA Energy
- Shipley Energy
- Smart Energy
- Soar Energy
- Superior Energy
- TXU Energy Services
- U.S. Energy Savings Corp.
- Universal Energy
- Universal Gas & Electric
- Vectren Source
- Washington Gas Energy Services
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