Biologists Mark and Karan Bailey established Conservation Southeast in 1998 to assist clients with identifying and achieving conservation goals. Clients include:

• Alabama Department of Conservation and Natural Resources
• Alabama Department of Environmental Management
• Alabama Forest Resources Center
• Alabama Power Company
• Auburn University Environmental Institute
• Autauga County (AL) Commission
• Balch and Bingham
• Birmingham Water Works Board
• BMI Environmental Services
• Bureau of Land Management
• Brown & Mitchell
• Central Alabama Regional Planning and Development Commission
• CH2M Hill (Arnold Air Force Base, TN)
• City of Cullman Utilities Board 
• Clearwater Energy, Inc
• Conservation Forestry Partners
• The Conservation Fund
• Covington & Associates
• Dominion Exploration & Production

• Dixie Pipeline Company

• EBSCO

• Eco-Systems Inc

• Fort Rucker

• Hancock Forest Management

• Jefferson County Roads and Transportation

• Keesler Air Force Base

• Larson & McGowin

• Mayne & Mertz

• M.C. Davis/Nokuse Plantation

• National Wildlife Federation

• Partners in Amphibian and Reptile Conservation (PARC)

• PERC Engineering, Inc

• Paul Bryant, Jr.

• Rayonier Southeast Forest Services
• Resource Management Service
• Russell Lands
• Tennessee Technological University
• Terwilliger Consulting, Inc.
• Tom Joiner & Associates
• The Trust for Public Land
• U.S. Forest Service
• U.S. Fish and Wildlife Service
• Weeks Bay Foundation
• White Smith Land Company
• Westervelt Ecological Services
• Weyerhaeuser
• Wilmon Timberlands