Ignite Baseball LLC

Ignite Good Health

Inner Core Wellness

Inova Well

J127 Education Foundation

Jabs Boxing and Fitness

Jade Fitness

Jazzercise

Jazzercise

Jordan Athletics

Joy of Dance

Joy of Motion Dance Center (H Street)

Jump Start Sports Maryland

Jump Start Sports NoVa

K.ARCADIA

KAZAXE by Azuka-Bom

Kaizo X

Kappa Alpha Psi Fraternity Inc.

Karma Yoga

Kent Gardens Swim Team

Khepera Wellness

Kick Fitness

Kids in Motion

Kinema Fitness - 750 17th St.