SOLDIERFIT Rockville

SOLDIERFIT Silver Spring

SPIRIT Club

STRNG Pain-Free Performance

Safety And Health Foundation

Salsa With Silvia

Sassy City Studio

Sculpt Studio

Sea Devil Swimming

Senz Yoga Barre & Cycle

Sergeant’s Fitness Concepts

Serpentine Dance Studios

Sierra Club

Silat Martial Arts Academy

Simon Says Yoga

Smile & Sweat Dance Fitness

Soka Tribe Dance Fitness

SoulFire Collective

Soulex Float Spa

Spark Fitness

SparkFire Fitness

Spencerville Adventist Academy

SpiritBody Movement & Wellness Center

Sport&Health