About StretchLab. StretchLab is the industry leader in one-on-one assisted stretching. Founded in 2015 in Venice, California, StretchLab helps clients. Live Long. through improved mobility, flexibility, and recovery. Our Flexologists come from backgrounds in fitness, physical therapy, yoga, Pilates, and chiropractic. Each completes our nationally recognized Flexologist Training Program to deliver an exceptional experience for every member. At Str...