B3 Fitness

BDY SQD

BKBX

BLUE FUSION FITNESS

BREATHE Cambridge

BURN Fitness Studios

Back Bay Yoga Union

BackYahd Boston

Bad to the Barre

Balans

Ballroom in Boston

Baptiste Power Yoga Boston

Barre & Soul

Barre Groove

Beacon Hill Yoga

Beacon Hill Yoga/REPS

Beantown Bootcamp

Beau Monde Ballroom

Bernardo Faria Academy

Beyond Fitness Pilates Studio

Bhakti Bodhi Yoga

Big Night Fitness

Bigger Muscles, Better Intentions

Bikes and Beers