(909) 390-2223info@thresholdhq.com800 S. Milliken Suite H, Ontario, CA 91761


At Threshold Headquarters, our holistic approach to fitness and the health industry is what makes us who we are and we have proudly continued that philosophy since day one. We asked ourselves what is vitally important to our clients, or members and especially our trainers. We have a community here that you won’t find anywhere else, our people are who make our gym. THQ isn’t just another gym looking to take your money, its a place where you can grow your business, grow your self and become part of a family in the midst of it all. We have over 20 certified personal trainers, specializing from powerlifting (in our Certified USPA training facility), bodybuilding, weight-loss, rehab, mobility and more we look to make this your one stop shop!