Founding Partners ($4,000 and up)
  -  Advanced Transportation Technology Institute (ATTI; formerly ETVI)
  -  B-97.5 & Oldies 95.7/106.7 (radio stations)
  -  Energy, Environment and Resource Center (EERC)
  -  Oak Ridge National Laboratory (ORNL)
  -  Sevier Transportation Board
  -  Ted Russell Ford
  -  Tennessee Department of Economic & Community Development, Energy Division

Platinum Partners ($2,000)
  -  Dream Works Printing
  -  Eastman Chemical Company
  -  Sevier County Utility District

Gold Partners ($1,000)
  -  Chattanooga Area Regional Transit Authority (CARTA)
  -  Knoxville Area Transit (KAT)
  -  Knoxville Utilities Board (KUB)
  -  Tennessee Valley Authority (TVA)

Silver Partners ($500)
  -  IdleAire Technologies Corporation
  -  Knox County, Tennessee

Associate Partners ($200)
  -  Griffin Industries

Supporting Partners (nonprofit and individual memberships - $25)
  -  Foundation for Global Sustainability
  -  Kelly Vaughn
  -  Metropolitan Knoxville Airport Authority
  -  Southern Alliance for Clean Energy (SACE)
  -  Tennessee Soybean Promotion Council