About Us
Mountainside Fitness Centers is the largest locally owned health club chain in Arizona. With currently eleven fitness centers across AZ & CO and plans to continue to expand; membership will increase to just over 65,000 active members. In November of 2005, Mountainside Fitness Centers was voted one of ten (10) “hottest growing” companies in Arizona by Biz AZ magazine. Each Mountainside location is approximately 41,000 sq. ft. and features 80 weekly Group Fitness classes, 100 pieces of cardio equipment each with their own personal TV, basketball court, interactive childcare, towel service and the most progressive strength training equipment in town.
Mountainside offers several membership options – but most importantly we offer the option to be contract free! You can choose from a month to month membership, 18 month membership or annual. Each membership can allow you access to all Mountainside Fitness locations, while some restrictions apply to the single club membership option.
Check out what Mountainside has to offer. Download a free 5 day guest pass and experience the fun at Mountainside Fitness.


i have been a member since 08 and i have finally found a home . the staff is awsome and iam in the best shape ever . my family is now going with me hip enough for my teenage daughter and son yet classie enoug for my parents . i have been to a lot of clubs and MSF is the best . all i can say is try it out i promise u will never leave lol. see u there so come and say hi. PASTOR Victor ARELLANO