| Gulf Ethanol Inc. - http://www.gulfethanolcorp.com They develop cellulosic ethanol pre-processing and production technologies for the ethanol producers in North America. - Read more |
| Hawkeye Renewables - http://www.hawkrenew.com A privately-owned company that uses locally-grown corn to produce ethanol and distillers grains. Plants in Iowa Falls and Fairbank, Iowa, United States. - Read more |
| VeraSun Energy - http://www.verasun.com Produces fuel-grade ethanol and distillers grains based in Brookings, South Dakota. - Read more |