Elevate yourFitness

helping everyday people live healthier, stronger lives since 2014.

Experience Lakewood's premier gym, where expert personal trainers are committed to helping you reach your fitness goals. Start your journey today with customized training programs and dynamic group workout sessions designed to elevate your health and wellness.
StoryCorey and Katherine, owners of Catalyst Fitness - best gym in Denver, Colorado

The Catalyst Story

Discover your inner strength

Catalyst Fitness was founded in 2014 from owner Coach Corey who had a vision to create an incredibly fitness supportive community that prioritizes personal growth and well-being.

Our mission is to guide each member to live their healthiest and happiest lives. From our own transformative fitness experiences, we want to show the world the power fitness can have on oneself and help every client instill these healthy habits so they can last a lifetime.

With personalized training programs, diverse classes, and incredible community and trainer support, we have your back every step of the way. Discover the Catalyst difference and join us on a journey of personal growth and empowerment, perfect for all skill levels.

Meet our team

Semi-Private Training

customized small group training for maximum results

At Catalyst Fitness, semi-private training gives you the best of both worlds: individualized coaching in a motivating small group setting.

With a 5:1 client-to-trainer ratio, you’ll receive the personalized attention you need to make significant progress in the gym and in life. This approach ensures that each workout is designed specifically for you, helping you build strength, gain muscle, and tone your body while benefiting from the support and energy of a small, like-minded community.

Whether you're just starting or aiming to level up, semi-private training is the perfect solution for achieving your fitness goals.

Learn more

Reviews & Testimonials

What our cLients are saying

I joined Catalyst Fitness to get in shape for my wedding, and I'm so glad I did! I was nervous and intimidated going in but Corey and Katherine were so welcoming and helped me get settled in quickly. All of the coaches are great, they are invested in your goals and progress without being pushy. I love that there are additional resources available for nutrition education, as well as virtual trainings, and there are also fun challenges every once in a while with various prizes to keep members motivated.Since starting at Catalyst I feel so much stronger, more confident, and excited to go to the gym. The wedding has passed, but I look forward to keeping my workouts going at Catalyst!

Christina Vance, gym member at Catalyst Fitness, best Personal Training in Denver, Colorado
Christina Vance

"Great place to get a targeted workout! I've been doing the semi-private training for 3 months now, very happy with the trainers, and I love the new workout series we just started. I can work out 3x a week and have something new every time, but easily see the progress I'm making.”

Wendy Harmening

“I’ve been at Catalyst since February 2024. I can’t speak highly enough for the quality of the coaches and workouts at Catalyst. The decision to partner with this gym for my health is one of the best decisions I’ve made. I signed up because I was constantly exhausted, grumpy, unfocused, not feeling like myself. Six weeks in, I felt balanced, focused, and had more energy than I’d had I years. Six months in I was thriving through bootcamp workouts, enjoying the community of people I saw several times a week. The coaches are engaged and engaging, allowing no one to slack off during workouts, but they do this without degrading dude-bro nonsense. Recently I signed up for their semi-private classes since I identified some specific goals I want to achieve. These classes are smaller and very personalized to achieve what I want. I’ve no doubt that continuing to partner with the coaches at Catalyst will get me there.”

Jordan Wyberneit, gym-member at Catalyst Fitness, best gym in Denver, Colorado
Jordan Wyberneit

"Not your ordinary boutique gym. I have been to plenty of gyms and Catalyst provides you a variety of classes to help you build strength that are both effective and fun. They also provide one on one personalized training sessions with knowledgeable trainers. Science shows diversity in your workouts prevents plateau and I love that they provide this. The trainers are unique as far as knowing what to coach but how to coach!And the best……Catalyst makes you feel part of their community.”

Duane Wishmeyer

"My husband and I signed up at Catalyst gym in January 2024 and it has been such a awesome experience, they have helped both of us reach our fitness goals and continue to strive for better health and wellness all around. All the trainers are so personable and spend the time to get to know you and what you need to do to meet the fitness goals you set for your self. The classes built for you to be able to modify where you need but also push you to hit the next level. I’m stoked I found a gym I can feel comfortable at and look forward to working out each day!”

Jay Digiacomo, gym member at Catalyst Fitness, Best personal training in Denver, Colorado
Jay DiGiacomo

Simply the best, Catalyst Fitness is hands down one of my favorite places to be! I was hesitant to get started but I have been a member of this gym for just over 6 months now. The structured, group style classes were exactly what I was looking for and the coaches are AMAZING! They are truly invested in your personal fitness journey and meet you wherever you're at.

Allen AAL
Jessica Danhof

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