2026-04-21T18:52:52.324Z

I’ve had a great experience training here. My main trainer is Brian, and I’ve also worked with Katherine and Cory, everyone is knowledgeable, helpful, and easy to work with.They do a great job breaking things down so the workouts are easy to follow, even when they’re challenging. I never feel lost, and they’re always there to answer questions or adjust things when needed.The programming is well thought out with a good mix of squat, deadlift, full-body, and chest/back days, plus accessory work that keeps things interesting and helps track progress.Overall, it’s a supportive environment with great coaching. I’d definitely recommend this gym.

2026-04-09T17:54:01.758Z

I have nothing but wonderful things to say about this gym! I am a 40-something that jumped back into working out and hurt myself 😂. Working with Katherine, Brian, and Corey has been awesome. They work around my injuries but also keep pushing me to get stronger. Additionally, I have had a lot of insecurities about being out of shape and overweight, and they really cultivate a culture that is welcoming and fun. There is no room for judgement and belittling here which is profound! Hurdling that obstacle at other gyms has absolutely kept me from going in the first place.Their model of semi private is magic. It’s been awesome to get the attention I need in strategic ways without paying for a private trainer (which I likely needed for the first few weeks). I feel much more confident after a few months. I really couldnt recommend Catalyst more!! I am absolutely stronger and more capable now than I was, and I’m confident that as I age I will continue to get better instead of weaker!

2026-03-20T15:19:39.223Z

Absolutely love this place! I have had a string of orthopedic surgeries and finally found this place to help with getting my strength and flexibility back. They specialize in people over 45 and modify my routine as needed for my issues. Class size is capped at 7 so you always get help on your form or modifications so you don't injure yourself. I can't believe the change in my strength after 18 visits! Can't recommend them enough!

2026-02-20T16:03:04.729Z

Great experience. Amazing team with great positive vibes. Corey and the team have been supportive of my goals. I love coming here to work out.

2026-02-19T14:48:50.893Z

This place truly knows how to give you a tough work out!

2026-01-06T17:54:58.311Z

Corey, Katherine and Brian are awesome! The semi-private setup and workouts are great - they started me on the fitness journey I’ve been seeking!

2026-01-06T17:49:48.498Z

Catalyst Fitness surprised me! This is the first time in my life that I've actually been consistent with strength training. Their combination of semi-private groups and regularly scheduled classes that you sign up for has turned out to be the perfect combination for me. The groups are small enough that you get to know other people even though you're each doing your own version of a workout. Having a coach who is paying attention to you, knows what you've done previously and what you're working on, helping you figure out what to do and watching your form and energy, but not focused solely on you, seems to be just the right amount of attention. I am getting stronger and feeling more energetic and most importantly, I feel committed to my health and to this process. This program has been well worth it, all the way around. Highly recommend!

2026-01-06T04:34:03.106Z

I workout here and have achieved my best self and I'm still making gains each new day. They have a great program that strengthens the whole body, no matter what level. A knowledgeable personal trainer is at hand at all times to make sure you get it right. I total recommend joining if you're ready for a serious achievable challenge.

2026-01-06T03:57:12.128Z

Corey, Katherine and Brian are great. I started about 2 months ago and have seen great progress. Increased strength, muscle gain, weight loss but most importantly I am feeling better, have more energy and fewer aches and pains.I am 52 and have had two recent foot surgeries. They have designed custom workouts to fit my needs and work around my repaired feet. Looking forward to be able to go full steam on my lower body too when my second surgery is fully healed in a few weeks.

2026-01-06T02:05:22.072Z

I'm a retired, 70+ year old who has been fairly inactive for the past many years due to some health issues and physical constraints. My daughter encouraged and pushed me to start working out at Catalyst. After 6 weeks of introductory workouts, I have finally graduated to the "big boys" schedule.I have lost 6 lbs and gained strength in areas I didn't know I could. Cory, Katherine and Brian have all been very supportive and especiallywilling to adapt some of the exercises to meet my constraints.I am very encouraged by my progress and look forward to continuing the program.

2026-01-06T01:25:08.173Z

I love Catalyst! Not only is a place where I feel supported and guided as I grow my strength and fitness but it’s a place I look forward to being. It feels like a real community of people you know and enjoy spending time with. The trainers helped me workout safely when I was recovering from an injury. The classes are small, fun and dynamic. I try to talk all my family and friends into joining. Simply can’t say enough good things at Catalyst.

2026-01-06T01:24:38.085Z

Catalyst has 3 of the best trainers that will help you with your progress and goals. Corey, Katherine and Brian want to know your goals and want to help you achieve them. They create a great atmosphere and are always motivated to help you. After every workout I feel that I have accomplished everything I wanted that day. Corey, Katherine and Brian make that happen on a daily basis. I haven’t felt this great in years. Thank you all so much for what you do!!!

2026-01-06T00:04:10.974Z

OK , let’s cut to the chase here , Catalyst Fitness is simply the best in the business, period! The team motivation , orientation to task and client requirements/understanding are second to none. As always you only get out what you put in, however the scheduled, pre booked, semi private workout classes is a truly excellent concept that really does allow for maximization of effort. Brian, Katherine or Corey will be your best ever coach & mentors with no hiding from reality! You need this in 26! (BTW, this is only my 2nd ever review of a business, that’s how important this group is.)

2026-01-05T19:51:32.817Z

Update to my earlier review: I have now been with Catalyst for over 6 months. The training is next level, and the community unbeatable! We just had a holiday party, and it was so much fun celebrating the year and everyone’s accomplishments & new friendships! Personally, I have lost 45 lbs, improved my leg strength and stability to where I can now do real barbell squats, and best yet- I can now do multiple chin ups and just three days ago I completed my first unassisted pull up! My strength, my posture, my energy, and my labs have all improved! And best yet, my 77 yo mother joined the gym (first time in her life) 2 months ago; my 20 yo daughter came home from college for winter break and has wanted to spend 3 days/week with me at our local Planet Fitness learning weight training/lifting exercises, and my youngest son has signed up for a weight lifting class in high school! The fitness I have pursued is now spilling over into the lives of my family, and I couldn’t be more ecstatic about it! Thank you for changing my life and the lives of my loved ones, Catalyst!

2026-01-05T19:38:12.492Z

Catalyst Fitness has been transformative for me! After a torn meniscus 13 years ago, followed by an orthopedic surgeon telling me I needed a knee replacement at 45 years old; I had all but given up on ever being fit again, or losing the 60+ pounds I had gained in 20 years from having three kids and career stress. I had tried personal training, gyms, keto, paleo, IF, and macro counting over the years, but my knee became the most limiting factor for exercise. I walked in with low expectations; Corey, Katherine, Bryan, & Shandy blew my mind with their compassion, knowledge, and support. I am now eating healthier than I have in years, and working out 4 x week with little to no knee pain (without missing any major muscle groups thanks to everyone’s creative suggestions and breadth of exercise knowledge- even my PT couldn’t help me build strength and stability relatively pain free the way I have in the last 7 weeks at Catalyst)! And now I have the confidence and hope to move forward with my weight loss and fitness goals! I am down 13 lbs already, and people are already commenting that they see a difference! And the best part? The encouragement that comes from these small group sessions; with folks of all abilities and all at different stages of their journeys, all with varying goals of weight loss, fitness levels, and/or strength improvement! No judgement, just a positive, friendly atmosphere, where we all work out and journey together! For me personally, with a background in team sports, it really embodies the environment that I grew up exercising in. Every two weeks, the workout cycles are changed, both for exercise variety and changes to help build muscle. So much better than a static workout routine. So excited to continue this journey!

2026-01-05T19:33:49.776Z

Have been loving the workouts! All trainers are good. I needed this.

2025-11-27T01:08:58.684Z

This is, without a doubt, the most welcoming and supportive gym I've ever been to. The community truly feels like family—everyone is genuinely encouraging, no matter your current fitness level or goals.I specifically came to Catalyst following knee surgery, and the coaches have been exceptional. They are incredibly knowledgeable about injuries and have carefully tailored my workouts to help me get back on track safely and effectively.They are fantastic coaches, and I truly love coming to Catalyst! Highly recommend.

2025-10-13T20:44:09.598Z

This gym is the best thing that’s happened to me. The trainers, the workouts, the soreness, the gains, and the friends I’ve made are all a part of why I’m fit and so happy now. I can’t imagine my weeks that aren’t structured by Katherine, Corey, and Brian. Thank you for caring so much about the process, when it’s hard not to. I wish I could give 6 stars.

2025-10-10T18:35:47.425Z

I've done all the fitness bootcamp style classes and cross-fits in the area (Lakewood, Golden and Wheat Ridge). I was trying new gyms this summer, and searching for a gym that would help me with lifting, getting stronger and dial in my form. I tried Catalyst for a month and was so happy with the format, coaches, and the emphasis on form before lifting heavier. I found that at bootcamp classes I didn't have time to lift heavy and set it up right, and at cross fit, it was so fast and all about heavier lifts vs form. Katherine, Brian and Corey are such great people and coaches. They push you and challenge you, and help you not fear lifting. I am a mom and have a 2 year old that likes to be carried a lot, this is helping me everyday and I am now confident that if I lift her I won't tweak my back! Worth a try. Simple & effective coaching. Thank you to this team for being awesome!

2025-10-02T17:20:13.271Z

Catalyst Fitness is so much more than a gym! I have found a community that is welcoming and supportive! Corey, Katherine and Brian are awesome, thank you for pushing me! I know I will reach my goals with your support and guidance! Catalyst Fitness is definitely a must for everyone on their fitness journey!

2025-09-27T03:13:00.674Z

I found Catalyst Fitness one day when they popped up while doom scrolling. It was such a positive and motivating message and just what I needed to hear to finally take action and work toward a healthier lifestyle (aging is no joke!). I joined that day, am feeling positive and noticing small differences rather quickly. Katherine, Brian, and Cory are so personable, knowledgeable, encouraging, and fun. The other members are all awesome, we're all at different levels, and I actually enjoy exercising and feel committed to it for the first time ever! Thank you Catalyst Team!!!!!

2025-09-10T23:33:14.133Z

Corey, Katherine and Brian are great motivators and are truly there to help you succeed. The smaller class size is ideal, each patron is on their own path but everyone is supportive and encouraging. Great environment for anyone starting out or returning to the gym.

2025-09-01T04:10:50.588Z

I have been part of this gym since April of this year. I love it! The staff are knowledgeable and patient, the members are awesome and supportive! I have unique disabilities (CMT and vestibular dysfunction) and they are awesome working with me. We modify some of the exercises to adapt around my CMT feet. I have lost weight and fat, gained muscle, and conquered diabetes!It is adults only, local, and family owned and operated! Small class sizes make Catalyst ideal for people over 40 and folks like me who have bad anxiety. Seriously, it is worth every penny! You won’t find staff and members this awesome at some big-box gym!15 out of 10 for sure!!

2025-08-14T21:41:37.517Z

This place is 12-out-of-10 fantastic!! The trainers are top notch, they make me feel super welcome and included, help me with modifications, have just the right balance of encouragement and inspiration to keep going, and they always make sure I get everything I need. Corey and Kathleen really care about the people they work with and it's clear they have gone to great lengths to create an amazing environment where everyone is safe, accepted and encouraged right where they are!! Definitely check it out!!

2025-08-04T20:42:35.975Z

The owners are amazing!! They truly care about every single client they work with! The small group training is perfect. 1 on 1 training with the energy of group fitness. 10/10 reccomend!

2025-08-01T18:12:21.000Z

I have been going for almost four months now. The trainers and the members are AWESOME! Supportive, patient, nonjudgemental. I have a somewhat unique set of health issues- mobility, balance, CMT. I am so thankful to be a part of this gym! Consistency is key, and my health and attitude and confidence have improved so much in such a short time! I have been conquering anxiety and diabetes with consistent and intense workouts. I encourage everyone out there to come in! Thank you so much! :)

2025-07-11T14:28:27.263Z

Great gym and great coaches! 100% recommend!

2025-06-25T20:34:32.748Z

This gym is amazing. I initially used my fake Google number to contact them so I could just ghost them if I didn't like it. Turns out, I love it. The other clients are nice and friendly, the trainers are knowledgeable and work with you based on your needs, injuries, likes, and dislikes. They also push you to do what you did not think you could do. I can't recommend Catalyst Fitness enough.

2025-04-02T14:25:25.836Z

I feel so lucky to have found Catalyst Fitness! For me, having been an athlete most of my life, and dealing with several stubborn injuries, their semi private gym model is key! All of the instructors take the time to watch what you’re doing, listen to what you’re saying, and help you to improve. I can’t wait to see what the future holds. Thank you to Corey, Katherine, and the entire team!

2025-03-02T16:57:51.883Z

Catalyst Fitness is the best strength training gym in Denver, hands down! I have now taken 2 classes with different coaches and have been blown away by how they run things.First, the intake process is completely unique. You meet with one of their coaches and go over your specific goals and get a baseline body comp. Then, you are given a notebook to track your workouts and weights so you can see measurable progress. In the past, when I have taken group fitness classes, you just show up and jump in with no "onboarding" and I have been left confused about what I should be doing. Catalyst clears all that up with a thorough, personalized onboarding process!Second, you have the option to choose between several different workouts. I've always disliked group classes in the past because you are locked in to the workout of the day, but at Catalyst, you have the freedom to choose which workout fits your current situation. Ie. if your legs are sore from a hike over the weekend, you can choose an upper body day instead. You can also change exercises to modify around injury. It is super customizable!Lastly, these coaches KNOW THEIR STUFF! They know how to modify for injury and/or pain and give you cues to make sure you are doing the exercises correctly. I am a physical therapist and something that consistently irritates me with group fitness classes is that the instructors either 1) aren't paying attention to your form, or 2) don't know how cue effectively to correct form. This is not the case at Catalyst! The coaches are extremely attentive and give solid cues to make sure you get the most out of each exercise.This is not a gym where you just show up, do the workout, and go home. Rather, it is a cooperative and supportive environment that allows for consistent progress and autonomy over your experience. I cannot recommend Catalyst enough!