Back Bay Yoga Union

BackYahd Boston

Bad to the Barre

Balans

Ballroom in Boston

Baptiste Power Yoga Boston

Barre & Soul

Barre Groove

Barre3 Needham

Beacon Hill Yoga

Beacon Hill Yoga/REPS

Beantown Bootcamp

BeyondFit

Big Night Fitness

Bigger Muscles, Better Intentions

Bikes and Beers

Blissful Monkey Yoga Studio

Blue Lotus Healing Arts

Body & Brain

BodyWaves

Bodyscapes Fitness

Boston Athletic Training

Boston Ballet School

Boston Body