Our sponsors are the four leading non-profit organizations in east central Indiana when it comes to environmental concerns. The leaders of these organizations have provided us with both feedback and information resources. In return, we are providing their constituencies with what we hope is a significant resource on Indiana's natural environment.

The Minnetrista Cultural Center and Oakhurst Gardens, located along the White River in Muncie, Indiana, is an informal education center for art, history, science, and environmental education. Situated on thirty-five acres along the White River in Muncie, Indiana, the campus includes extensive gardens and grounds, historic buildings, a gift shop and orchard shop, and a 55,000 square foot cultural center. Its most recent addition is an eight-acre nature area, developed on the site of a former sand and gravel quarry. Public programs include exhibitions, classes, workshops, concerts, festivals, and farmers markets, making Minnetrista and Oakhurst one of the community’s most active venues for local and regional events throughout the year.

The Robert Cooper Audubon Society (known for most of its history as the East Central Indiana Society) has been a regional chapter of the National Audubon Society since 1974. It serves approximately 600 members in seven counties of east central Indiana. Through monthly informational programs and field trips, the chapter fulfills its mission "to promote the conservation of wildlife and the natural environment" and to "educate others regarding their relationship with, and their place within, the natural environment." The National Audubon Society, named after naturalist and artist John James Audubon, was founded in the late 1800s to protest and prevent the massive slaughter of birds. Birds were killed by the millions, sometimes to extinction, primarily for their plumage, which was used in women's hats. Today, the Audubon Society, at both the national and regional level, stands for "action, advocacy, and research," as well as sheer enjoyment of the natural world.

The Five Rivers Group of the Hoosier Chapter Sierra Club was established in 2000, to serve seven counties in east central Indiana. Its chapter name recognizes the rich natural heritage of Indiana’s waterways in that region. In addition to monthly programs and outings, the chapter focuses much of its attention on local and regional conservation issues, including sprawl, peaking power plants and other energy issues, and recycling. The Sierra Club, of which all state chapters and local groups are member organizations, was founded in 1892 by John Muir, to protect pristine natural areas in the Western United States, starting with Yosemite National Park. Sierra's mission is to "explore, enjoy and protect the planet," often through political and social activism.

The Red-tail Conservancy, founded in 1999 by Barry Banks, is an independent organization that is “dedicated to the preservation, restoration, and protection of ecologically significant areas of rural and urban east central Indiana." As a land trust, Red-tail Conservancy oversees and protects land that has been donated, purchased, or placed in a conservation easement (which allows a landowner to maintain ownership of a property but decide which activities will or will not be allowed on the land, such as drilling, logging, development, and other uses). As of December 2003, Red-Tail Conservancy has completed 12 land acquisitions protecting 970 acres in five counties. Plans are underway for the creation of the Red-tail Nature Preserve, at the southern end of Prairie Creek Reservoir, in Delaware County. When completed, the preserve will include a nature center and varied habitats, including a prairie plot.