- The Lionshead Inn - Vail, CO
- The Living Bank
- The Living Legacy Foundation of Maryland
- The Loretto Hospital
- The Louis Berger Group Inc.
- The M.C. Benton Jr. Convention and Civic Center Winston-Salem
- The Magazine Group
- The MapNetwork
- The Mary J. Drexel Home
- The Mayfair at Coconut Grove
- The McClatchy Co.
- The Med Group
- The Medical Center of Aurora
- The Medical Center of Central Georgia
- The Medical Office of Dr. Clarita Herrera
- The Medicines Company
- The Meeting Manager
- The Meetings Group
- The Minority Organ Tissue Transplant Education Program MOTTEP-of Cleveland
- The Miriam Hospital
- The Mort C. McClennan Company
- The Moses H. Cone Memorial Hospital
- The Mount Sinai Hospital
- The National Association for Hispanic Elderly
- The National Industrial Transportation League
- The National Kidney Foundation of Alabama
- The Network
- The NeuroMedical Center Surgical Hospital
- The Neuroscience Institute
- The New Images
- The New Otani
- The Northern Star
- The Oaks at Sweeten Creek
- The Oasis at Tampa Community Hospital
- The OFIS
- The Ohio State University - Newark
- The Ohio Masonic Home
- The Ohio State University
- The Ohio State University - Lima
- The Ohio State University - Mansfield
- The Ohio State University - Marion
- The Ohio State University Wexner Medical Center
- The Ohio State University Wexner Medical Center
- The Orthopedic Specialty Hospital
- The Outer Banks Hospital
- The Pearson Group
- The Peddie School
- The Pennsylvania eHealth Partnership Authority
- The Pennsylvania State University
- The Perry Foundation