- Marriott International
- Mars, Incorporated
- Marshall Fisher
- Marshall L. Fisher
- Marshall Van Alstyne
- Marta Tessitore
- Martha Centeno
- Martim Joyce-Moniz
- Martin A. Lariviere
- Martin Cousineau
- Martin Durbin
- Martin Forster
- Martin Grötschel
- Martin Grunow
- Martin I. Reiman
- Martin J. Beckmann
- Martin K. Starr
- Martin L. Ernst
- Martin L. Puterman
- Martin Natter