Current participants in the Keep Antibiotics Working campaign include:

Center for Science in the Public Interest
Environmental Defense
Food Animal Concerns Trust
Global Resource Action Center for the Environment
Humane Society of the United States
Institute for Agriculture and Trade Policy
National Catholic Rural Life Conference
Natural Resources Defense Council
Physicians for Social Responsibility
Safe Tables Our Priority (S.T.O.P.)
Sierra Club
Union of Concerned Scientists
Waterkeeper Alliance