Acer Environmental, Inc. ACRT, Inc. Arborguard Bartlett Tree Experts BB Hobbs Brickman
Campbell University School of Pharmacy The Care of Trees Clemson Extension Service The Davey Tree Expert Co. Dow AgroSciences Ed Castro Landscape Emery's Tree Service The Fockele Garden Company Georgia Forestry Commission Georgia State Parks Gibbs Landscape Gold Kist, Inc. The Greenery HighGrove Partners International Paper John Deere (Deere & Company) Lab Support The McKinley Group Murphy Family Ventures LLC National Park Service (Kings Mountain) North Carolina Department of Environment and Natural Resources North Carolina Division of Forest Resources Ocean Woods Landscaping Co., Inc. Pennington Seed, Inc. Perdue Farms, Inc. Pilgrim's Pride Prestage Farms, Inc. Rayonier Reynolds Plantation Rockwell Farms, Inc. Santee Cooper Schneider Tree Care Sherman College of Straight Chiropractic South Carolina Department of Health & Environmental Control South Carolina Department of Natural Resources South Carolina Forestry Commission Sunbelt Rentals
TruGreen ChemLawn Trutech, Inc
. US Army Corps of Engineers
USDA National Ag Statistics Service USDA Natural Resources Conservation Service US Forest Service Walt Disney World Company - Epcot Science W. P. Law, Inc. Walter P. Rawl & Son, Inc.