East-Central Illinois

Champaign County Forest Preserve District
The Prairie Monk
ERES
Heartland Pathways
Red Bison student restoration group
Vermilion County Conservation District

Illinois

Chicago Wilderness
Midewin National Tallgrass Prairie
Openlands Project
Save the Prairie Society
The Prairie Enthusiasts

Indiana

Central Indiana Land Trust Incorporated

Iowa

Friends of the Prairie Learning Center
Iowa Prairie Network

Kansas

Konza Prairie, Kansas
Tallgrass Prairie National Preserve
The Prairie Falcon

Missouri

Missouri Prairie Foundation
Prairies Forever

Wisconsin

The Prairie Enthusiasts

Nationwide

Endow-Bio, Inc., the First National Endowment for Biodiversity
Prairie Biotic Research, Inc.
The Land Trust Alliance
The Nature Conservancy
Sierra Club
The Wild Ones