- Methodist Hospitals of Dallas
- Methodist Hospitals of Dallas - Data Coordination
- Methodist Hospitals Southlake Campus
- Methodist Jennie Edmundson
- Methodist Le Bonheur Germantown Hospital
- Methodist Medical Center of Oak Ridge
- Methodist North Hospital
- Methodist South Hospital
- Methodist Specialty and Transplant Hospital
- Methodist Stone Oak Hospital
- Methodist Texsan Hospital
- Methodist United Hospital
- Methodist University Hospital Transplant Institute
- Methodist West
- MetLife
- MetLife Financial Services
- Metro Atlanta Chamber of Commerce
- Metro Atlanta Ministerial Alliance
- Metro Community College
- Metro Health Center
- Metro Health Foundation, Inc.
- Metro Public Health Department
- Metro South West Health Corp.
- Metro United Way
- MetroHealth
- Metroplan Orlando
- Metropolitan Chicago Healthcare Council
- Metropolitan Community Health Service
- Metropolitan Family Services
- Metropolitan Methodist Hospital
- Metropolitan Transit Authority METRO)
- Metropolitan Tucson Convention and Visitors Bureau
- MetroSouth Medical Center
- MetroWest Medical Center - Framingham and Natick
- MetroWest Medical Center - Leonard Morse Hospital
- Meydenbauer Center
- MGM Grand
- MHF Logistical Solutions Inc.
- MHP Communications LLC
- Miami Transplant Institute
- Miami Valley Career Technical Center
- Miami Valley Hospital
- Miami-Dade Community College
- Michael Baker Jr. Inc.
- Michael E. DeBakey Veterans Affairs Medical Center
- Michael Foods Inc.
- Michael Thomas Furniture Incorporated
- Michael-Gene Kids Basketball Foundation
- Michigan Dental Association
- Michigan Department of Community Health