IADB

IMF Fitness and Wellness Center

INFIT360

Jade Fitness

Jazzercise

Jazzercise

Jazzercise Washington DC NE - Our Redeemer Lutheran Church

Johnnie Boi Fitness

Joint Base Andrews Fitness Center

Joy of Motion Dance Center (H Street)

KAAOS Gym & Athletic Training Center

Kappa Alpha Psi Fraternity Inc.

Karib Dance and Cultural Arts Studio

Khepera Wellness

Kick Fitness

Kinema Fitness - 750 17th St.

Kinema Fitness - District Center

Kinema Fitness - Homer Health Club

Kinema Fitness at 1100 New York Ave.

Klotz Institute of Karate - Bowie

Knock On Wood Tap Studio

LOTUS Fitness

LOTUS Fitness

Lady T