I love going to Demco. If you asked me a year ago if I was willing to get up at 6am to go to the gym, I would have laughed. The group dynamic here is perfect for me and I am always excited to go. I also appreciate the balance of independence and instruction while working out. I have knee issues and my programs are always accommodating to where my body is at and how I am feeling. My strength/endurance is incredible after only 3 months; ski season has been that much more fun, and I cant wait for hiking season.

Amazing Space, amazing trainers and amazing location. I love working out there.

I was introduced to Demco Fitness by a friend after Covid-19 hit. I was desperately trying to find a program to maintain my fitness schedule while my gym was closed. These Zoom and live streaming classes are the best Ive ever had! So good I am not even going back to my old gym. They are fun, flexible for all fitness levels, challenging and varied. Demco has helped me up my fitness level even during quarantine. As a bonus, their music slaps.

Great gym with fantastic trainers. Ive taken the online Zoom classes and the in-person classes, loved both of them. Highly recommended!

Ive been training with Sonja at Demco Fitness for the past two years and for the first time ever I have found a gym that is perfect for me. Sonja always provides the right balance of pushing me forward while also taking into my bodys specific issues/needs. When I need a modification for my knee, Sonja is quick to find 3 or 4 alternatives right off the top of her head. I cant recommend Demco Fitness enough!

My body has truly changed since working out at Demco Fitness!Sonja, the owner, is amazing and has created such a phenomenal gym where everyone feels welcome. She and the other trainers are so knowledgable and keep your specific needs (knee issues) and goals in mind. Sonja keeps creating amazing programs specific to each member!! The BEST!!!

I have been going to Demco Fitness for 2 years and love it! It offers so much more than other places. Whether you have 1:1 workouts or attend a semi-private session, Sonja and her staff know what you should be doing. I was amazed during a semi-private with 5 other people how much attention was focused on each of us – correcting movement, answering questions and giving encouragement. Fitting in was one of my concerns but at this gym you see every body type and every age group; and each person has their own goals. My workout is updated regularly which keeps it from being boring and gives me a feeling of accomplishment.

This place is worth every penny. I’ve been going to the semi-personal classes for over a year now and I’m stronger than I’ve ever been. When I first started, I was a gym newbie. I had zero body strength. Sonja’s training (the owner) is so good that I can now actually do a pull-up! Her classes are welcoming to all people and all fitness levels.Sonja is a very knowledgeable trainer and she creates a custom program each month tailored to your body and goals. This is really nice because the workout is different each day and I don’t get bored of it. Sonja’s programming is effective - you know you’re going get results No cookie cutter workouts here!During the workouts, Sonja and her trainers make sure you that do the exercises with proper form and continue to modify your program based on how your body feels during the workouts. She’s the real deal guys.The bootcamp/hiit classes are pretty good too. Every class is different which makes it fun and challenging each time.I highly recommend checking this place out!

Sonja Demco is an exceptional trainer. Not only she genuinely cares and works hard for you, but shes very fun to be around. She somehow makes working out something you look forward to, even if you hate the effort it takes. If youre looking for motivation and quality training, shes hard to beat.

Sonja knows her stuff when it comes to functional training and will not try and sell clients on a short term fix or an exercise program which isnt focused on long term health and strength progression. The gym has a great vibe and is a little oasis during long dark Seattle winter days. Her model of preparing an individual program for small group training works - it avoids having a personal training looking bored while clients move through exercises but ensures an experienced trainer is at the ready to correct technique and provide accountability

I have been personally trained by Sonja in the semi private session class. She is an amazing personal trainer and is extremely passionate about fitness. She goes above and beyond to help achieve your fitness goals. Highly recommend Demco Fitness and Sonja :)

1 year at Demco Fitness!!!! Celebrating it with a review.This is not a regular gym where we do 100+ squats or run non stop on the treadmill. Spoiler alert, there’s no treadmill, elliptical etc. Cardio is taken care of by Rower, Ski Erg, Sleds, Air bike. Don’t like to use any of it? Sure, you can get your heart rate up just by body weight exercise. Sonja / Selina both have some insanely effective exercise ideas. To be honest, the max reps I could remember was 12, thats the beauty of the workout program. It’s unbelievably effective. Whatever your goals are, no matter how crazy, you’d get there. All you need to do is show up!The Gym is nicely setup. Free weights, Kettlebells, Barbells, Bench, Med Balls, Ropes, TRX. Basically just about everything you need for a killer workout.I workout 3x / week, follow what Sonja / Selina design for me. It has changed my life. I’ve never been in better shape, both physically and mentally. This Gym is my happy place. :)Can’t recommend this place enough!First review:Sonja is by far the best trainer I’ve ever had. She puts in a lot of effort to make a workout plan based on individual goals and fitness levels. They change every 4 weeks. She’ll walk you through each exercise, making sure you get the proper form, with all the right muscles engaged. She’s super fun, knowledgeable and caring. Working out at Demco fitness is my favorite part of the day. Can’t recommend her enough!

Great place in Belltown for workout. Well equipped and clean facility with towels, changing rooms and lockers available. Highly knowledgeable, skilled and approachable trainers who cater workouts according to your fitness levels and goals. Great first month offer to test out the gym and trainers!

Sonja is awesome, I can’t recommend her highly enough. Very knowledgeable, super fun to be around, incredibly kind and caring, and most importantly gets me the results that I wouldn’t have gotten on my own. I came to her a year ago being a weak stick with a so-so butt, and today I feel much stronger, have abs, and my butt looks amazing. Personal training sessions with her make me exhausted, but very happy!

I came to Sonja Demco to focus on incorporating more functional training into my workouts. Not only is she an incredible trainer, she is also an incredible person and cares deeply about her clients and their health from the inside out! My strength training program was tailored to my goals and changed monthly, which meant I was always getting the most of each workout. And having an experienced trainer there at all times meant I could always ask questions and get feedback on my form right there on the spot. Sonja has also built a special community of trainers and clients within her studio. The people are what made it fun to come in each day! Highly recommend this place!! :)

Such a great gym! Highly recommend. Sonja customizes training programs for your goals and has an awesome team of trainers creating a fun and productive atmosphere. The gym is super clean and the equipment quality is excellent.

Sonja is an amazing trainer and an equally awesome person that has built such a great community with her gym. Working with her Ive made more progress with strength and mobility than I ever imagined.

I was very skeptical to start a group training workout plan. Sonja made me feel comfortable and welcomed. She is knowledgeable, kind and truly wants you to be the best that you can be. Highly recommend.

Demco is Awesome! For someone who has had a history of back issues, I have always been wary of lifting weights!A year later, my back has never been stronger!This past year I have also had injuries outside of the gym and sonja initially designed workouts for me around my injuries and progressively designed workouts to get my knee and ankle back to full strength.I cant recommend this place enough!!

Not only is Sonja an amazing trainer, shes an inspiring person whose community of like-minded and motivated individuals make Demco Fitness a fun and welcoming environment to work out in. No matter what your fitness level, Sonjas approach takes into consideration past injuries and insecurities so you can begin building a solid foundation wherever youre at physically. My only complaint is that she doesnt have a location in Scottsdale, where I currently live. Another reason to visit Seattle often!

I have been going to this gym for a few months now and it is by far my favorite gym I have ever joined. There is a real sense of community and you dont get that weird LA fitness vibe where everyone is weirdly into themselves.Sonja by far is the best part. She takes a lot of time and thoughtfulness in building a plan personally for your needs. I have a really bad back and she has been very meticulous on building a plan that not only protects my back but works to strengthen it as well so I can advance my fitness goals. She has also really helped me rethink how I think and eat my food, and I LOVE to eat. If you communicate your needs and goals, Sonja will do everything in her power to give you the guidance and support you need. She also does an amazing job at creating a community within the gym. She is hilarious and a great people person.This place is definitely worth checking out!

Sonja Demco is the best trainer I have ever had. My program is individualized based on my goals and fitness level. The program changes every 4 weeks. I am able to do skills/activities I never thought I could do in my mid 50’s. I have fun.... and have met really wonderful people who also train with Sonja. She is also very knowledgeable of nutrition and addresses the importance of being emotionallly healthy If that is support you need from her. She is a fantastic, caring person who knows her stuff.... so very thankful for her.

Sonja and all the coaches here at Demco are stellar trainers and even better HUMANS! If you live close enough to join this community, you should take advantage of that.

Sonja is amazing! I worked out with personal trainers 1:1 in the past and also tried going to the gym to work out on my own but Sonja created a great mix of the two. Personal training sessions can become very expensive quickly, especially if you are doing it on the regular basis. Working out on your own is definitely cheaper but I could never find motivation to do it consistently. I’d go for a couple of months and then stop.Sonja’s workouts are created for each person individually and you end up doing a completely different routine from the other 3-5 people, who work out at the same time as you do. You are still getting an individual approach and motivation from Sonja but you have other people who work out with you at the same time.Sonja does a great job keeping an eye on everyone working out at the same time. I really enjoy these workouts!

Sonja makes exercise fun, challenging and provides a comfortable, supportive environment. She focuses on your personal health goals and helps you achieve them. If you are more of a self-conscious exerciser, like me, this is the place for you. Demco Fitness would become your home away from home where youll find a community of non-judgmental, caring supporters. Best of luck to you!

I trained with Sonja (unlimited monthly plan for about 3-4 months) and loved it! I felt stronger and started seeing results right away (she provided nutritional guidance as well). She is an incredibly knowledgeable, supportive, and easygoing person. The only reason I stopped training there is because I’m traveling to the east coast for work regularly but plan on going back soon once the traveling stops. I also loved the community feel of the studio. I would definitely recommend Demco Fitness for anyone that is trying to get fit!

I have been working out at Demco for 2 months now and for someone who cant stick to a trainer/ plan, this is great and shows how awesome a place it is. Sonia is an amazing, knowledgeable trainer who helps everyone reach their personal goals but most importantly teaches healthy lifestyle. I highly recommend this to anyone who wants a sustainable, wholistic healthy living.

Sonja is the best! Ive been working out with her for 10 months now and have seen such an improvement in my strength, stamina, health, and have reached weight loss goals. The semi-private sessions are a great flexible fit for a busy schedule, and the people at Demco Fitness are AMAZING.

If you are looking for good vibes and community, this is the place for you! Sonja, the owner of the gym is inviting, fun and her knowledge of fitness is second to none. Doesn’t matter what level of fitness you are at, all your goals and objectives can be facilitated here.

Ive been doing semi-personal training with Sonja at Demco Fitness for a few years and have never been bored with my training. I also train for marathons, while other Demco Fitness members have their own fitness goals, and Sonja is able to seamlessly accommodate each persons plan to meet our individual goals. This is a very community-oriented gym--your workout will definitely be challenging, but youll also definitely have a fun time!

This is hands down, by far and away, the best gym and trainer I’ve ever gone to - and I’ve tried a lot! The community of people you workout around are fantastic. Sonja’s style of training is so personalized to your goals and who you are that it’s immensly effective. She gets you to work hard without even realizing it and you definitely see results! 1000% worth it.

Sonja is amazing! She makes sure she incorporates your goals into your workouts and makes sure they’re challenging and fun. The gym environment is also very supportive and fun. I’ve trained at many gyms and this is a special community, I love spending time there.

Sonja does semi private(5 or less) training that seems private. She knows her stuff! Reasonably priced and in a convenient location. Im a big fan!

Great gym, location, and workouts! Sonja is the best trainer I have ever had. She got me in wedding shape and has kept my workouts interesting and challenging. If you’re looking for a friendly and fun place to workout, Demco fitness is the perfect community.

The opening of Demco Fitness is the beginning of something great for the Seattle area. Sonja has figured it out! Personalized plan and attention in a group setting makes complete sense. I started with Sonja two years ago and cant say enough about the fresh perspective she brings to fitness, movement, and health. What I expected from her was to simply get in shape. What I got was so much more than that. Whether you are a beginner athlete or seasoned professional, Demco Fitness is a community of individuals who share the same passion; living a healthier lifestyle one day at a time. Ive made new friends, I push myself harder than I thought I ever could, and as a former fitness instructor and athlete, Ive come to like working out again. I cant say enough about how Demco Fitness has changed my own perspective on fitness and my life.

I have been working out at demco fitness now for almost a year and I just have to say how much I love it. When I first started, I was uncoordinated and did not know how to strength train beyond working out on machines. I also had back pain due to my career as a dental hygienist. The trainers here are so personable and hilarious that being so new to strength training did not feel uncomfortable. I no longer have back pain and I have more results than I have ever had working out alone. Also, the people that work out here are the best! I have made some great friends here. I highly recommend this place!

Sonjas bootcamp classes are amazing! Best 1hr workout you could ask for - just the right amount of soreness after. Sonja is a great instructor and can modify any exercise to make sure you get the workout you need taking into account any injuries or limitations you might have. Definitely a great gym and atmosphere!!

Demco Fitness is my favorite place to train! I moved back to Seattle from Austin, where I had an awesome trainer who pushed me and worked to build my fitness, endurance and strength – leaving me with high expectations. I trained at another gym for a bit, but just didn’t have the connection or challenge I was looking for. I frequently do half marathons and half ironmans and wanted to build speed and prevent injuries. I found what I was looking for with Sonja at Demco Fitness. Sonja creates a personalized training program for each client. She has worked with me to build up my strength and takes a personal interest into my fitness goals for the past 2+ years. Beyond fitness and functional training, Sonja creates a welcoming atmosphere with genuine clients. It’s like having a gym family, where everyone is super supportive. If you are seeking something similar, I highly recommend checking it out!

Training at Demco Fitness has been an essential part of my routine for several years now. In addition to her meticulous programming and attention to detail, Sonja has a passion for community that is unparalleled in Seattles fitness world. Her workouts are goal-oriented, dynamic, and always inspiring!

Demco fitness is a great gym with a great trainer to help you achieve your fitness goals. Sonja is wonderful, very motivating and kind. They offer personal training and group training whichever works for you. Check it out!

High energy workout catered to all levels of fitness. Sonja really pushed me to new levels of confidence and got me into the best shape of my life. Can’t recommend her enough.

Ive been going to Demco Fitness for over a year and I can safely say this is the place to go if youre on a journey to better health and fitness. As someone who shied away from chain gyms and trendy, aggressive crossfit studios I feel that I found exactly what I needed at Demco. Sonja and her crew have been crucial in my transformation--workouts are tailored to what you want to achieve, youre encouraged to go at your own pace, and the gym sessions have a limited number of people to ensure youre getting the proper 1 on 1 time with the trainers. Everyone at Demco is supportive, kind, and respectful and it is a great atmosphere to be in whether youre a seasoned gym rat or someone who has never lifted a weight. Ive gone from someone who hasnt worked out in earnest for almost a decade to a regular at Demco. This past year has been well worth the cost and effort for me, and I believe in Sonja so much that I paid another year in advance. If you decide to take the plunge and go to Demco after reading this review, make sure to say hi if you see me!

Sonja is an amazing coach and the training that you will get at this facility is top notch. Whether you’ve been an athlete all of your life or you’re just starting out, Sonja will help you hit your goals.

Sonja is an amazing trainer. She inspires me to work hard to achieve my fitness goals. Her gym in Belltown has been designed with much thought and care. I highly recommend giving Sonja a try as your trainer.

After falling off the workout wagon for over five years I decided to get back after it about a year ago. I knew I needed to find gym and trainer with a holistic approach who loved what they did and up leveled the people around them everyday. I cant imagine anyone better than Sonja and the community shes built at Demco.

This place is great, its got the group feel you would get with crossfit but with really thoughtful individualized training and really good coaching. Sonja knows her stuff and if youre a fitness junky, the facilities and equipment are everything youd want in a dream gym. So lucky this place is nearby.On the downside, she keeps making me work harder and do more reps and lift heavier weights and correct my form and eat better... What a jerk.

Sonja is such an attentive trainer and really pushes you to achieve stuff you didn’t think you were capable of. The space is great and I never feel cramped in her semi-private classes.

Just a quick note to thank you for everything Sonja has done while training me over the last 11 months.I am very picky about picking out my trainer and I had tried a lot of gyms, trainers and noone made me satisfy like Sonja. I clearly can see the goal that I have been always wanted for my body.Sonja is extremely knowledgeable, highly motivated, and awesome person to be around.FYI, I come all the way from Bothell to Seattle just to workout with her almost everyday.

Ive worked with a variety of personal trainers before, but none motivated me to stick with it consistently as much as at Demco Fitness. Sonja truly works hard to provide you with a personalized, long term fitness program. She creates a schedule for each of her clients with all the exercises to do over several weeks, walks you through all of them as you go, and can explain why each routine is important. After working with Sonja for about a year, Ive noticed a huge improvement in my fitness thats helped me to do things such as bike from Seattle to Portland and spend 40+ days skiing this past winter.I also found semi-personal training to be much more fun than just having one person watch you do all your reps for the full hour. You get to work out with a few other people all doing their own programs, and Sonja is still always there to help you out and push you further. If youre really nervous about working out with other people at first, you can always book a few private sessions to start out. I highly recommend Demco Fitness and am really sad I have to find a new gym when I move.

Just come here. You will reach where you want to be in terms of your fitness goals.

They play my favorite songs

As a pretty active person who works out daily and typically does my own thing and trains for long distance cycling I dont often find people or workouts that challenge me. I recently started taking the MWF bootcamps and I have to say Sonja and her Demco Fitness workouts have blown me away. They exaust me every time and work muscles that I dont pay enough attention to in my own programming. Sonja is also always happy to modify work outs to make them even harder! I plan to continue going to bootcamps to help round out my training regiment. A buddy of mine who is a trainer recently worked out with me and joked jacked zach is back well I have Sonjas work outs to thank for that!

Love working out with Sonja at Demco Fitness!

Sonja is a Rick Star. I have been with her for almost three years. She knows her craft, knows how to push but also alters workouts based on injuries.