Mike's Fitness JP

Millennium Running

Millennium Tower

Milton Yoga

Mission Hill Yoga

Mo's Martial Arts

Modern Barre

Modern Barre Fitness Studio

Motion Performance Group

Movement Over Everything (MOVE)

Movement with Jill

Mrbstyles Salsa Fit

Musicians Playground

MyStryde

NeuGeneration Lacrosse

New England Conservatory of Music Preparatory School and School of Continuing Education

New Vision Academy of Jiu Jitsu

Next Level Factory

North End Yoga

November Project

Om Namo Center

One Life Physique

One Nation Fitness

Oom Yung Doe