- APS Energy Services
- Cirro Group, Inc.
- Cities Aggregation Power Project, Inc.
- Constellation NewEnergy, Inc.
- Direct Energy, LP
- Entergy Solutions Ltd.
- Fire Fly Electricity, LLC
- Gexa Corp.
- Green Mountain Energy Company
- Hino Electric Power Company
- Just Energy Texas, LLC
- Liberty Power Corp., LLC
- Mpower Retail Energy, LP
- South Texas Aggregation Project, Inc.
- Spark Energy, LP
- Strategic Energy, LLC
- Tara Energy, Inc.
- Texas Commercial Energy, LLC
- Tri Eagle Energy, LP
- Utility Choice Electric
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- Brubaker & Associates, Inc.
- Calpine PowerAmerica, LP
- Commonwealth Energy Corporation, dba electricAmerica
- ConocoPhillips Company
- Sempra Energy Solutions
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