For more than four decades, 24 Hour Fitness has been committed to creating a healthier, happier world through fitness, according to its officials. It offers welcoming and inclusive environments with thousands of square feet of premium strength and cardio equipment, turf zones, free weights, functional training areas, and more. Members can choose from studio and cycle classes, personal training, and innovative digital and virtual offerings designed to help them stay active in ways that fit their lives, keeping their minds and bodies fit.

Early this year, company officials announced that company founder and fitness industry trailblazer Mark Mastrov was returning as Owner and Executive Chair to accelerate the brand into its next phase of innovation and expansion. Mastrov and LongRange Capital partnered to acquire 24 Hour Fitness and support the company's executive leadership team led by President and CEO Karl Sanft.

Mastrov founded 24 Hour Fitness and grew it from a single location to 420 clubs and 4.5 million members before selling the company in 2005. He then went on to lead the purchase of Crunch Fitness in 2009, expanding it from several locations to 550 owned and franchised clubs before it was sold in 2025. Widely regarded as the pioneer of the modern fitness culture, Mastrov has helped reshape the industry through four decades of worldwide development. Now he and Sanft are united behind a shared vision to propel the company and industry into its most ambitious chapter yet.

The announcement marked a pivotal moment for 24 Hour Fitness, which is experiencing one of the strongest growth periods in its history. Fueled by renewed demand for health and wellness, the company has invested in a nationwide slate of remodeled clubs and a wave of new experiences that allow each member to accomplish their personal wellness goals. The brand employs approximately 7,000 team members and supports more than 113 million workouts each year, ranking in the top three among company-owned fitness clubs in the country. New initiatives, partnerships, and global expansion plans are expected to be announced throughout 2026.

"Mark founded and built 24 Hour Fitness into the powerhouse brand it is today, and the organization is inspired and energized by his return," according to Sanft. "With the business stronger than ever and our investments aligned with what members value most, this is the perfect time to welcome him back. Together with LongRange Capital, we're ready to accelerate our growth story."

Over the past two years, 24 Hour Fitness has rolled out an extensive remodel program and introduced a premium suite of offerings, including Recovery24, giving members a robust range of resources to support their personal wellness goals and journey. 24 Hour Fitness has also deepened its roots in the community through expanded partnerships with major sports organizations across the NBA, NFL, and NWSL. Together, these initiatives have strengthened the company's position as one of the most recognizable, trusted, and enduring brands in the industry.

In 2010, the company invested millions to convert the former Tri-Valley Herald publishing building at Hacienda into a 50,000-square-foot state-of-the art facility. The Super-Sport gym on Willow Road includes a steam room, lap pool, whirlpool, as well as volleyball, basketball, and racquetball courts. Other amenities include group classes, TRX Suspension Training equipment, and nutrition consultations.

For more information about 24 Hour Fitness and its programs, please visit www.24hourfitness.com/gyms/find-a-gym/?location=pleasanton%20ca.