The following agencies and entities are members of the ETPA

City of Alcoa
Anderson County
City of Athens
Blount County
Chattanooga Housing Authority
City of Bristol
City of Chattanooga
City of Cleveland
City of Elizabethton
Greene County
Hamblen County
Hamilton County
City of Johnson City
Loudon County
City of Kingsport
Knox County
Knox County Schools
City of Knoxville
Knoxville's Community Development Corp
Knoxville Utilities Board
City of Maryville
City of Morristown
City of Newport
City of Oak Ridge
Public Building Authority of Knox County and City of Knoxville
Roane County
Roane State Community College
Sullivan County