InnerCity Weightlifting

Institute of Combative Arts Quincy

Instrumental Yoga

JET Boston

JP Centre Yoga

Jenn Weldon Pilates & Fitness

Josh Mavilia Fitness

José Mateo Ballet Theatre

Joy of Yoga

K Foley Global Pilates

KRIGSMAN

Kaivalya Bodywork

Kaliyuga Dance Studios

Karuna Nutrition & Movement, LLC

Kinema Fitness - 55 Fitness

Kinema Fitness - One Post Office Square

Kinema Fitness - Rowes Wharf Health Club

Kinema Fitness - SharkNinja

Kinetic Dance Studio

Knights Of Columbus - Newton

LEVO

LIFE Health and Fitness Center

LS Flamenco

Lea Tam Acupuncture