- 360 Degree Co
- ABB Inc
- Active Power Inc
- ADI Thermal Power
- ADI Thermal Power
- Advanced Energy Solutions
- Advanced Energy Solutions
- Advanced Energy Solutions
- Advent Power Corp
- Alpha Solar
- Alternate Energy Systems
- Amer Council-Renewable Energy
- American Critical Energy Syst
- American Critical Energy Syst
- American Critical Energy Systm
- American Critical Energy Systm
- American Imaging Machines
- Aqua Son Energy Inc
- AREVA
- B & B Sales
- Badger Energy Inc
- Bass Energy Co
- Baytown Power Plant
- Bhp Billiton Lng Intl
- Calpine Corp
- Catamount Energy Corp
- Chevron Texaco
- Constellation Operating Svc
- Cox Waste To Energy
- Current Energy Design
- Duke Energy
- Duke Energy
- Dutch Energy Corp
- Dutch Energy Corp
- Dynegy
- E J Ward Inc
- Eastern Energy Solutions
- Electro-Grav
- Energen Technologies
- Energy Clearinghouse Corp
- Energy Control & Svc Inc
- Energy Systems Group
- Excel Energy Technologies LTD
- FPL Energy
- G E Network Solutions
- GCK Technology Inc
- GCK Technology Inc
- Geoproducts Corp
- Global Logic
- GMT Energy Corp
- GMT Energy Corp
- Gold Coast Stabilization
- Goodfield Energy Corp
- H & B Energy
- H & B Energy
- Hart Energy Intl
- Hart Energy Intl
- Hess Microgin
- Honeywell International
- Inland Energy Svc
- International Power & Light
- JATS Alternative Power Co
- Kesters Investers
- Kesters Investers
- Kinder Morgan Inc
- Kinder Morgan Inc
- Landfill Energy Systems
- Laurmar Electric
- Link Energy Corp
- Lynxspring Inc
- Lyonsdale Biomass Co
- Maid Rock Electric Co
- Mathison Heating & Air
- Mathison Heating & Air
- Mathison Heating & Air
- Maxey Energy Co
- Mock Energy Management
- Mock Energy Management
- NGC Energy
- Novar Controls Corp
- Pacific Energy Resources
- Plug Power Inc
- Plug Power Inc
- Power Light Hawaii
- Precision Energy Svc Inc
- Primenergy
- PRM Energy Systems
- Quest Energy
- Renewable Energy Systems USA
- Ripon Cogeneration
- S W Energy Production Co
- Savannah Energy Systems Co
- SDII Corp
- Sema Schlumberger Elec Cmpnt
- Shell Windenergy Inc
- Smith Cogeneration Inc
- Solargenic Energy
- Thermal Conversion Corp
- Thermal Conversion Corp
- Tour Andover Controls
- Tour Andover Controls
- Tour Andover Controls
- Tractebel Power Inc
- Trigen-St Louis Energy Corp
- Unipower Inc
- Vaughn Energy Svc
- Verado Energy
- Vestas AWT
- Wabash Energy Corp
- Wabash Energy Corp
- Ward Energy Systems Inc
- Warren Energy Corp
- Window Energy Systems Inc
- Windpower Partners 93 Buffalo
- Windynamics Inc
- Xencom Systems Inc