Citizens Action Coalition of Indiana - A not-for-profit coalition of organizations and over 300,000 individual members throughout the state of Indiana. For over two decades CAC has worked to empower citizens, promote economic and environmental justice.
COPA, Inc. - Dedicated to presenting information concerning the PCB problem in south central indiana.
Hoosier Environmental Council - The only environmental group providing in-depth research and advocacy on the broad range of Indiana, national and international environmental issues.
Indiana Conservation Officers Organization, Inc. - A not for profit representing active and retired officers and associate members on legislative issues and educational issues that support IDNR's goals in enhancing our life sports.
Indiana Lakes Management Society - Purpose is to promote and encourage the understanding and management of lakes and reservoirs and their watershed eco-systems.
Sycamore Audubon Society - Membership consists of members living in Benton, Carroll, Clinton, Tippecanoe, Warren, and White counties, with the purpose of defending our natural environment.
Sycamore Land Trust - South-central Indiana non-profit organization whose mission is the preservation of the disappearing landscape.
