National Organizations:
The National Association for Olmsted Parks (Piedmont Park is of Olmsted design)

Neighborhood Associations:
Atlanta Planning Advisory Board
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Adair Park Community Empowerment Association - SW
Adair Park Today - SW
Cabbagetown Neighborhood Improvement Association - SE
Candler Park Neighborhood Organization
Capitol View Neighborhood Association - SW
Fourth Ward Neighbors - NE
Inman Park Neighborhood Association - NE
Lake Claire Neighbors - NE
Lindridge Martin Manor Neighborhood Association - NE
Mechanicsville Civic Association - SW
Midtown Neighbors Association - NE
Morningside-Lenox Park Neighborhood Association - NE
Norwood Manor Civic Association - SE
Organized Neighbors of Edgewood  (O.N.E.)
Organized Neighbors of Summerhill - SW
Peoplestown Revitalization Corporation - SW
Piedmont Heights Civic Association
SAND (South Atlantans for Neighborhood Development) which consists of the following neighborhoods: Benteen; Boulevard Heights; McDonough-Guice; North Ormewood Park, Ormewood Park; Woodland Hills
Sylvan Hills Neighborhood Association - SW

Organizations:
Atlanta Bicycle Campaign
Atlanta Audubon Society
Citizens for Progressive Transit
Clean Streams
Grady High School Parent-Teacher-Student Association
L5P (Little Five Points) Community Center
L5P (Little Five Points) Business Association
Friends of Piedmont Park
Physicians for Social Responsibility -- Atlanta Chapter
Piedmont Park Tennis Association
Ponce Corridor East Association
Sierra Club -Atlanta Chapter
Upper Chattahoochee RiverKeeper