Heroes Fitness

Higher Ground Fitness

Hometown Sweat

Inclusive Fitness

Infinity Flexibility & Strength Training

InnerCity Weightlifting

Instrumental Yoga

Intuitive Wellness

JBSC

JET Boston

JLW MEDICAL MANAGEMENT CONSULTING

JP Centre Yoga

Jazzercise

José Mateo Ballet Theatre

K Foley Global Pilates

KOHR Golf

Kaivalya Bodywork

Karuna Nutrition & Movement, LLC

Kinema Fitness - 55 Fitness

Kinema Fitness - SharkNinja

Kinema Fitness - Wolverine Worldwide (MA)

Kinetic Dance Studio

Kink Pilates

Knights Of Columbus - Newton