- Millennium Digital Media Holdings LLC
- Millennium Hotel Cincinnati
- Millennium Hotels and Resorts
- Miller and Shook Companies
- Miller and Wade Group
- Miller Children's and Women's Hospital Long Beach
- Miller Creative Group
- Miller Group Media
- Miller High School
- Millers Information Systems
- Millikin University
- Milliman USA
- Millinocket Regional Hospital
- Million Dollar Round Table
- Mills Peninsula Medical Center
- Milstone Biomedical Associates
- Miltec
- Milton Hospital
- Milwaukee - Residence Inn by Marriott
- MIMS International
- Minden Medical Center
- Mindshare
- Mine Safety Appliances Company
- Ministry Door County Memorial Hospital
- Minnesota Society of Association Executives
- Minnesota State University School of Nursing, Mankato
- Minnesota Virtual Academy
- Minnie Hamilton Health Care Center
- Minnie Hamilton Health Center
- Miqnuchi Perez Glusti
- Mir, Fox and Rodriguez PC
- Miramar Designs Ltd.
- Mirror Enterprise, Inc.
- Miss Mendocino County Pageant
- Miss West Georgia Scholarship Competition
- Miss Wisconsin
- Mission - St. Joseph Hospital
- Mission Community Hospital
- Mission Critical Solutions
- Mission Family Medicine - Weaverville
- Mission Hospital
- Mission Hospital Laguna Beach
- Mission Hospital Mission Viejo
- Mission Regional Medical Center
- Mission Trail Baptist Hospital
- Mississippi Association of REALTORS
- Mississippi Association of Supervisors
- Mississippi Coast Coliseum and Convention Center
- Mississippi County Hospital
- Mississippi Gulf Coast Convention and Visitors Bureau