I2SM Boston, LLC

InnerCity Weightlifting

Inspire Fitness Studio

Instrumental Yoga

JAS Nutri fit

JET Boston

JKA Revere Athletic Club

JP Centre Yoga

JV Fitness

Jazzercise

Jessi’s Virtual Workouts

José Mateo Ballet Theatre

K Foley Global Pilates

K-FIT Studio LLC

Kaivalya Bodywork

Kaliyuga Dance Studios

Katana Spa

Kinema Fitness - One Post Office Square

Kinema Fitness - Rowes Wharf Health Club

Knights Of Columbus - Newton

LS Flamenco

Lea Tam Acupuncture

Level Ground Mixed Martial Arts

Level Up Fitness and Wellness Center