Peter Welch's Gym

Pilates Back Bay

PowHer by Stef

Power Rowing

PowerLift Studio

Powerhouse Personal Training

Private jewels fitness

Pro Ambitions Hockey, Inc.

Project DEEP

Pulse Fit Training

Pure Barre Boston & Harvard Square

Pure Drive Golf

Purple Door Yoga

Pursuit By Emily

Q BALLROOM

RPM Fitness

Radiant Yoga Boston

RayFit

Rebel Athletic Club

Rebirth Body Transformation Center

Redefine Strength and Fitness

Redemption Strength & Conditioning

Redline Fight Sports

Regan's Motivated Fitness