Organizers
- Mark Fox Basketball Camps
- Mark Mettrick Professional Soccer Camps Inc
- Mark Morris Dance Group
- Mark Paolini Golf Academy
- Mark Pollock Trust
- Mark Richt Football Camp
- Mark Wood Rock Orchestra Camp
- MarkKistler.com
- Markoe Running Series
- Marksman Group of SC
- Marlin Club
- Marlton Golf Club
- Marlton Thunder
- Mar-Lu-Ridge
- Marquette Senior High School
- Marquette Women's Soccer
- Mars Hill Elementary
- Marsh Creek Eagles Inc.
- Marshall Chapter Of The Illinois Council Of Police
- Marshall County Exceptional Center
- Marshall County Public Health Department
- Marshall County Relay For Life
- Marshall Ellis Dance School
- Marshall Hill PTA
- Marshall Medical Center
- Marshall United Way
- Marshall Youth Club
- Marshalltown Parks and Recreation
- Marshalltown Soccer Club
- Marshfield Area YMCA
- Marshfield Parks and Recreation Department
- Marshfield Youth Soccer Association
- Martha's Vineyard Adventure Camp
- Martha's Vineyard Boys and Girls Club
- Martha's Vineyard Multisport Inc
- Martha's Vineyard track and xc teams
- Martin County Board of County Commissioners - Parks and Recreation Department
- Martin County Farm Bureau Federation
- MARTIN COUNTY SOUTH YOUTH ATHLETIC LEAGUE
- Martingrove Baseball League
- Martinsburg Berkeley County Parks and Recreation
- Marty Smith Sports Camps
- Marty Wilson Basketball Camp
- Marvol Barnard Golf Instruction
- Mary and Frances Youth Center - Lobs & Lessons
- Mary Ann Evans Hospice
- Mary Hafeman Golf Experience
- Mary Martha House
- Mary McDowell Friends School
- Maryland Chapter of Trout Unlimited