- C-Breeze International Ltd.
 - Shakopee - Sells wind energy systems ranging from grid systems to those for individual homes or water pumps. - Center for Energy and Environment
- Minneapolis - Works to promote the responsible and efficient use of natural and economic resources.
- Central MN Ethanol Co-op
- Little Falls - Producing fuel grade ethanol from locally grown corn.
- Chippewa Valley Ethanol Company
- Benson - Dry mill ethanol plant.
- Hydro Supply Co.
- Burnsville - Utility meter and automated meter reading AMR technology specialists and distributor.
- Navitas Energy
- Minneapolis - Sells wind energy to electric utilities, co-ops and municipals.
- NRG Energy
- Minneapolis - Engaged in the acquisition, development, operation, and maintenance of power generation facilities.
- SolarAttic, Inc.
- Elk River - Sells a pool heater that uses hot attic air to heat your swimming pool.
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