Organizers
- Mission Hills Athletic Club
- Mission Hills Country Club (Private)
- Mission Inn Foundation and Museum
- Mission Lakes Country Club
- Mission Marlins Swim Club
- Mission Meadows
- Mission Montessori Athletics
- Mission Montessori Schools
- Mission Vista Timberwolves Foundation
- MissionsRace
- Mississauga Aquatic Club
- Mississippi 811, Inc.
- Mississippi Blues Marathon
- Mississippi Elks Camp
- MISSISSIPPI STATE UNIVERSITY GOLF COURSE
- Mississippi State University Golf Course
- Mississippi Tennis Association
- Mississippi Track Club
- Mississippi University for Women
- Mississippi Valley Sports
- Missoula Parks and Recreation
- Missoulians on Bicycles
- Missouri Athletic Club West
- Missouri Baptist University
- Missouri City Little League
- Missouri City Parks and Recreation Department
- Missouri City Recreation & Tennis Center
- Missouri Endurance Sports
- Missouri ITOA
- Missouri NSA
- Missouri Southern State University
- Missouri Southern State University Kinesiology Department
- Missouri State Soccer School
- Missouri Union Presbytery
- Missouri United Methodist Foundation
- Missouri Valley Chamber
- MiSTEM Network
- Mitch King's Extra Heartbeat Foundation
- Mitch King's The Extra Heartbeat Football Academy
- Mitch Korn's Specialized Hockey Camps Inc.
- Mitchell Brother's Football Camp
- Mitchell Dental Clinic
- Mitchell Family Football Camp
- Mitchell Parks and Recreation
- Mitchell Spearman Junior Golf
- Mitchellraces, Inc
- Mitsubishi Cement Corp. Educational Foundation
- Mizzou Softball
- Mizzou Swim Camp
- Mizzou Tennis Camp
