Ultimate Tango

Union Street Boxing

United Shaolin Kempo Karate

Unleashed Fitness

Upbeat Cycling

Upward Spiral Studio

VIM Fitness

VXN Workout with Hannah

Vault Training

WWIRE: Wellness for Women in Real Estate

Wai Kru

Waltham Recreation Department

Warrior Fitness

Weigh Better U

Wild Ember

Winchester Aerobics

Wonder Yoga

Xeno-Animals

YWCA Cambridge

Yoga Club Boston

Yoga Moves

Yoga with Lisa O.

YogaWorks - Boston Production Clone

Zumba with Dawn