- Iogen Corporation
 - Develops, manufactures, and markets industrial enzyme products for the pulp and paper, textiles, and animal feed industry. Also develops clean renewable fuels. - Commercial Alcohol
- Canadian manufacturer of ethanol.
- Central MN Ethanol Co-op
- Producing fuel grade ethanol from locally grown corn.
- Chippewa Valley Ethanol Company
- Dry mill ethanol plant.
- Exol
- Ethanol processing plant in Southern Minnesota.
- Coskata
- Enables the low-cost production of ethanol from a wide variety of input material including biomass, municipal solid waste, and other carbonaceous material.
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