1. Bluegrass Art and Science, 760 Winter Hill Lane, Lexington, KY 40509, USA
2. West Florida Research and Education Center, University of Florida, 4235 Experiment Drive, Jay, FL 32565, USA
3. Golf Course Superintendents Association of America, 1421 Research Park Drive, Lawrence, KS 66049, USA
4. National Golf Foundation, 501 N. Highway A1A, Jupiter, FL 33477, USA