| American Coalition for Ethanol | National Corn-to-Ethanol Research Center |
| Clean Cities Program | National Renewable Energy Laboratory |
| E85 Fleet Toolkit | U.S. Department of Agriculture |
| Growth Energy | Renewable Fuels Association |
| Iowa Area Development Group | U.S. Department of Energy Biomass Program |
| Iowa Department of Agriculture and Land Stewardship | U.S. Energy Information Administration |
| Iowa Department of Natural Resources | U.S. Environmental Protect Agency |
| Agricultural Marketing Resource Center | National Biodiesel Board |
| Iowa Farm Bureau Federation | Ethanol Producer Magazine |
| Biodiesel Magazine | |
