Welcome to The Firm Fitness

Sometimes there are just not enough hours in the day to take care of yourself. With work, family and social engagements, how do you make time for lifting weights, cardio, stretching, shopping right and preparing healthy meals?
We are here to help!  All you have to do is show up and we take care of the rest. We will take you through a comprehensive assessment and goal strategy session. Your workout will be designed by one of our nationally certified instructors and will be customized for your fitness objectives.  We will make obtaining the body and fitness goals you want more efficient, so you can get more out of life.

Semi-Private Training

Feel Good, Look Good

Get all the benefits of having a personal trainer at under half the cost by working out in small groups of 1-4 people.  Each workout is tailored to your goals and needs, and every 6-8 weeks we do a reassessment and you receive a new workout.  This allows our members to continue to make progress, and stops the boredom that can occur from doing the same stale workout each week.

Kids Conditioning

Core Strength & Injury Prevention

Our Kids Conditioning Classes provide a safe and fun way for your video gamer to your college athlete to workout.  Our focus is on injury prevention, conditioning, building core strength and stability, and most importantly, fun!  With more kids specializing in a sport at an early age it is important to help them build the strength and stability to prevent injuries.  For the younger kids we provide a fun and challenging environment for them to learn core fundamental movements through different challenges and activities while allowing each young athlete to work at their own individual level. Exercise at a young age builds good fitness habits and can enhance cognitive function which can carry over to their school education.
For our young adult athletes, building power and strength must be achieved with an emphasis on stability and mobility. In order to prevent injury, teenage athletes have to be careful not to develop strength on top of disfunction.  Learning correct movement patterns and proper body mechanics is crucial for the sport specific athlete.

Nutritional Counseling

Start from the Inside Out

Your relationship with food can improve your lifestyle, weight management, and overall fitness and performance.  
Whatever your specific or individual goals, our objective is your success in achieving them through our customized programs based on the science of proper nutrition.

JJ Miller

The Veteran

JJ Miller obtained his B.S. in Kinesiology from the University of Texas. He is a certified personal trainer through the American College of Sports Medicine as well as a Certified Functional Strength Coach. He has been a personal trainer for nearly 25 years. During that time he has worked with an extensive client demographic, including young aspiring athletes, post physical therapy patients, pre- and post-natal moms and weekend warriors. He has been working with clients in San Francisco since 1997.  Along with his wife, Andrea Miller, he founded The Firm in order to provide clients with a support team dedicated to helping them make a healthy lifestyle easier and more enjoyable.

Andrea Miller

The Woman Behind the Curtain

Andrea Miller has run health clubs for over 20 years, and has redefined what it means to "lift like a girl."  She is a big believer in building comradery and community within the club. She is the mother of three very active kids and is highly involved in their schools. She understands what it means to be a mother in San Francisco. She knows that life can get a bit hectic and the importance of getting some time for yourself to workout.  Along with her husband, J.J. Miller, she founded The Firm to create a friendly, social environment to stay fit and have fun doing it.

Jessica Barker

The Commander

Jessica has always enjoyed an active lifestyle, studying ballet and yoga intensely beginning in college. She has a passion for teaching others how to feel confident in their bodies by learning skills, getting strong and working on grace and flexibility. She especially enjoys working with kettlebells, complex body weight exercises, sprinting and power building, plus moves that increase mobility while building strength. Jessica is certified through NASM, CFSC, and is a certified Pre- & Postnatal Coach through Girls Gone Strong.  She makes an effort to continue her education as often as possible, as well as network with like minded people in her field.

Omar Prieto

The Happy Masochist

Omar has been a certified personal trainer for 6 years.  His experience began when he decided to take control of his health and well being.  "I lost 100lbs 5 years ago by exercising and eating healthy, and I have helped others achieve the same."  Omar's ultimate goal is to inspire others to change their lives through fitness.  His expertise in cardiovascular, core and strength training as well as being a life coach has given his clients proven results.  When Omar is not motivating clients inside the gym, he is outdoors hiking and rollerblading.  He also competes at the elite level in obstacle Spartan Races.

Justyna Sproull

The Ringer

Justyna has always had a passion for athletics and exercise.  While growing up in Poland, she was active in volleyball, basketball, and swimming, as well as table tennis, which she played at the semi-professional level.  Justyna received both her MS and PhD in Health, Exercise and Kinesiology Science from the University of Physical Education in Krakow.  She has excelled as a group fitness instructor, swim coach, and mobility specialist.  She also has her CFSC certification as a Functional Strength Coach.  Her care-free attitude and endearing optimism always create a fun and engaging atmosphere which promote a positive environment for her clients to reach their goals.  Justyna spends her time outside of the gym hiking, drawing, and adventuring around the world.

Shannon Morse

The Diet Doc

Shannon’s interest, desire and personal commitment to educating and developing the potential in her clients through physical fitness stems from her belief that the body has endless possibilities when fueled and treated properly. Her journey began over a decade ago when, after she sustained a severe concussion, she was introduced to Pilates as a form of physical therapy and rehab. This led Shannon into the field of personal training at both the group and individual levels. The core of the curriculum focused on coaching others toward achieving their personal goals and becoming the best versions of themselves – physically and mentally – through a solid understanding of the human body, how it functions and the optimum methods to maximize its performance in daily use. This eventually led Shannon to the importance of diet and nutrition in the entire fitness equation. She came to realize that nutrition was the key to unlocking the body’s true potential when combined with a proper training program. In 2014, she became a licensed Diet Doc Permanent Weight Loss Program clinician. The addition of the Diet Doc Program allowed her to expand her knowledge and provide additional services for her clients.

Chris Villa

The Up and Comer

Christopher Villa is currently a senior at Abraham Lincoln High School.  He started weightlifting competitively in 8th grade and soon fell in love with the training aspect of fitness.  He has participated in a variety of sports such as football, wrestling, tennis, and track.  He plans to study exercise science in college and hopefully open up his own gym one day.