- Lowndes County
- Macon Transit Authority
- Madison County Health Dept.
- Manatron
- Marine Corps Material Comm.LHP
- Massey Escort Service
- Mathematics And Technology Help, Inc.
- Mayo Clinic Health System
- McLane Southeast
- Med Nova USA-Inc.
- Medical Center - Navicent Health
- Medical Center of Central Georgia
- Medical College of Georgia
- Medical College of Georgia, MCG Health System
- Meeting Expectations
- Memberclicks
- Memorial Health Meadows Hospital
- Memorial Health University Medical Center
- Memorial Satilla Health
- Memorial University Medical Center
- Mercer University School of Medicine
- Meriweather County, Department of Family and Children Services
- Metro Atlanta Chamber of Commerce
- Metro Atlanta Ministerial Alliance
- Metro Health Foundation, Inc.
- Microtel Inn Atlanta Airport
- Microtel Inn Atlanta-Smyrna
- Milliman USA
- Miss West Georgia Scholarship Competition
- Mitchell County Hospital
- MLR Atlanta, LLC
- Monroe County Hospital
- Morehouse School of Medicine
- MTC Technologies
- Muscogee County Humane Society
- Muscogee County Sheriff
- Muscogee Manor and Rehabilitation Center.
- National Football League Players Association Atlanta
- National Guard Bureau - Counterdrug Programs
- National Kidney Foundation of Georgia
- Nature's World, Inc.
- Neville Patient Advocacy Group
- New Beginning Kidney Foundation
- New Horizon Baptist Church
- New Source Ambulatory
- Ninth District Opportunity
- Norsan Group
- Northeast Drury Inn and Suites, Atlanta
- Northeast Georgia Girl Scouts
- Northeast Georgia Health Systems, Inc.