Colorado Athletic Club – Union Station

Unmatched Amenities | Unbelievable Trainers | Unparalleled Community

Inspiring Active Lifestyles

Colorado Athletic Club – Union Station

What We Do

Downtown Denver’s Most Elevated Gym Experience

For more than three decades, Wellbridge has successfully managed fitness properties, like Colorado Athletic Club, across the country. With an intimate knowledge of unique, high-end resorts and spas and athletic clubs for the on-the-go member, we continue to define the fitness industry’s best practices.

Headquartered in Denver, Colorado, our dedicated team supports our family of clubs across the country in creating a cohesive, approachable fitness brand. We work closely with each location to understand their clientele and culture. This is the difference in creating the best fitness brand experience.

What We Do - Group Fitness | Denver, Colorado Athletic Club - Union Station

Our Vision

Colorado Athletic Club expects better, seeks out better and delivers better because WE BELIEVE IN BETTER.

Our History

Colorado Athletic Club - Union Station | Downtown Denver's Most Elevated Gym Experience

Founded in Denver in 1983, Wellbridge (formerly Club Sports International) quickly became the leaders in the field of fitness club management. For over 35 years, we have managed health clubs for some of the country’s top real estate developers, property managers and financial institutions. In addition to managing health clubs, Wellbridge has also been instrumental in developing more than 1.5 million square feet of club facilities. These facilities range from 10,000-square-foot corporate fitness centers to 200,000-square-foot megaclubs. Among our family of clubs, we have been proud to include full-service spas, sports centers, multi-purpose athletic clubs and hotel gyms with top-of-the-line amenities and state-of-the-art equipment.


  • 1983 Founded as Club Sports International in Denver, CO
  • 1997 Partnered with investment firms Chilmark Partners and Starwood Capital Group
  • 2006 Club Sports International acquired by Wellbridge
  • 2009 Open 2 new flagship locations in Boulder, CO, and Denver, CO
  • 2013 Wellbridge acquires Flatirons Athletic Club to better serve Boulder, CO. New location called Colorado Athletic Club-Flatirons
  • 2015 Wellbridge announces plans to open its 8th Colorado location at the newly renovated Union Station downtown
  • 2015 Maryland Athletic Clubʼs Harbor East joins the Wellbridge family
  • 2016 Colorado Athletic Club-Union Station opens, signaling an exciting new era in fitness
  • 2018 The new Wellbridge Athletic Club & Spa in Clayton, MO opens, replacing the previous location
Temporary Club Closure

All the benefits of energetic classes & training, but done at home for FREE! Strength, cardio, dance, step, core, boxing, family, cycling…