- Mississippi Hospital Association
- Mississippi Organ Recovery Agency
- Mississippi Society of Association Executives
- Mississippi State Department of Health
- Missoula Manor Homes
- Missouri Baptist Sullivan Hospital
- Missouri Beef Council
- Departamento de Salud y Servicios para la Tercera Edad de Misuri
- Missouri Hospital Association
- Missouri League for Nursing
- Missouri Slope Areawide United Way
- Missouri Society of Association Executives
- Mitchell County Hospital
- Mitchell County Regional Health Center
- Mitchellville Public Library
- Mitratech
- Mitsubishi Motors North America, Manufacturing Division
- Mizell Memorial Hospital
- ML Sewing Machine Company
- MLR Atlanta, LLC
- Moapa Valley/Virgin Valley Mortuaries
- Mobile Area Convention and Visitors Bureau
- Mobile Chapter of the Links, Inc and The Linkage to Life Program
- Mobile Drury Inn
- Mobile Infirmary Medical Center
- Modern Woodman of America
- Modesto Junior College
- Modus Media International
- Modus Media International
- Moeller Dermatology
- Mohave County
- Mohawk Valley Health System - St. Elizabeth Campus
- Molalla Discount Tires
- Molina Healthcare, Inc.
- Molzen Corbin
- Mon Health Grafton City Hospital
- Mon Health Marion Neighborhood Hospital
- Mon Health Medical Center
- Mon Health Preston Memorial Hospital
- Mon Health Stonewall Jackson Memorial Hospital
- Monadnock Community Hospital
- Monadnock United Way
- Mongiovi Plumbing and Excavating
- Monmouth County, Department of Human Services
- Monmouth Medical Center
- Monmouth Medical Center Southern Campus
- Monongahela Valley Hospital, Inc.
- Monroe Carrell Jr. Children's Hospital at Vanderbilt
- Monroe College Bronx Campus
- Monroe County Board of Commissioners