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A Little About Us

For 10 years, Catalyst Fitness has been Georgia’s one and only medically recognized Personal Training and Performance Enhancement facility. Our team of award winning trainers hold many local, national and international awards.

We are dedicated to transforming lives and revolutionizing the health and fitness industry by providing unprecedented success through our unique scientific approach to fitness. Catalyst Fitness offers the most knowledgeable and experienced Personal Trainers, who all hold degrees and multiple certifications and/or advanced specializations through the five most reputable and accredited personal training organizations (ACE, NASM, PTA Global, NSCA,and ACSM).

Trainers That C.A.R.E

At Catalyst Fitness our team is here for you and ready to help guide you on your path to a better you. Click here to learn how we define the acronym C.A.R.E.


Flexible Hours

Small Group Training:

Monday-Friday from 6 AM-12 PM, 4 PM-8 PM, Saturdays 9 AM-12 PM.


Personal Training sessions are always available by appointment.


Convenient Location

Conveniently located near the intersection of Peachtree Rd. and Peachtree Battle Rd. in the Astoria at the Aramore. We are in the same building as Holman and Finch and Restaurant Eugene.

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Catalyst Fitness holds more local and industry awards than any other training facility in the Southeast.



Small Group Training

Unlike other facilities whose classes start on the hour, your Small Group Personal Training on Demand session begins when you arrive and ends when you complete the workout. Our talented…


Personal Training

The rates for One-on-One Personal Training range from $80-$125 per session depending on the trainer you are working with. Sessions last 55-60 minutes in length. All of our Trainers hold…


Corporate Wellness

People breathe life and value into your company. Within the modern workplace there are increasing instances of stress, anxiety, obesity, depression, and heart disease. The modern workplace has become increasingly…


Brazilian Jiu-Jitsu

Private Instruction is available by appointment. Please email us at info@catalystfitness.com to schedule. For more information on Gracie Barra and Brazilian Jiu-Jitsu please visit the school’s main web page at…


We Train The Trainers

For the past 15 years, we have been teaching clinics, speaking at conferences, working with equipment manufactures, and helping trainers around the world enhance their skill set to meet the…


We have plans to meet your needs

From results-blasting personal training to contract-free, drop-in training, Catalyst Fitness has the program and price that is perfect for you.


per month

  • 6 Days a week
  • ~3-6 People Per Trainer
  • Unlimited Use
  • M-F 6AM-12PM, 4PM-8PM
  • Saturday 9AM-12PM

Personal Training

per session

  • 7 Days a week
  • 1–on–1 Training
  • Personalized For You
  • Quickest Results

Take a class


  • 6 Days a week
  • 3-6 people per trainer
  • No Contract
  • Variety of Classes

Meet the Team

Since 2004 Catalyst Fitness has been serving the needs of Metro-Atlanta run by Valorie Ness-Sonnemaker, B.S., CES, CPT and Bill Sonnemaker M.S., PES, CES, CSCS. Valorie and Bill are both internationally sought after personal trainers and educators. Their work and contributions to the health and fitness industry span the globe and reach every continent.

Bill Sonnemaker

Bill Sonnemaker, MS


Bill is an internationally sought after exercise physiologist, speaker and author. Specializing in applied biomechanics and human movement.

Valorie Ness

Valorie Ness


Valorie is PFP’s 2013 Trainer of the Year, a fitness model and mother of two. She loves helping people work through their physical challenges.

Kurt Gillon head shot

Kurt Gillon

Director of Small Group Personal Training on Demand, Personal Trainer

Kurt brings a high level of creativity and energy to our small group training and One-on-One sessions every day. His impressive skill set allows him to work with a with a wide variety of members including the aging population, cancer survivors, and athletes.

Matt Spear photo

Matt Spear

Director of Training, Personal Trainer

There is no limit to what you can achieve when training with Matt. His outside the box approach to fitness is unlike anything you have ever encountered before. Members that work with Matt love his passion, energy, and enthusiasm that he brings to every session. He is your catalyst for change.

Jake Burkhardt image

Jake Burkhardt

Personal Trainer

As a founding member of the NSCA (National Strength and Conditioning Association) and a former player on the United States Rugby team, performance has always been a important part of Jake’s life.

Dr. Bill White Personal Trainer

Dr. Bill White

Personal Trainer

Get ready for change, when Bill begins working with you every aspect of your life will improve. This is accomplished by integrating his experience in Behavioral Counseling, Human Physiology, and Life Coaching.

Dan Sheedy Personal Trainer

Dan Sheedy

Personal Trainer

Dan is a sought after coach and trainer on issues and factors affecting performance and leadership. Inspiring and mentoring individuals to help them reach their fullest potential is his passion.

What Our Customers Say?

Catalyst Fitness is more that a cut above.  First Class service is the embodiment of their attitude.  You are their focus.  I have learned more and achieved more in one year of consistent training with Bill Sonnemaker and his team than I did in 4 years of training with another organization.Ed Hatcher
Catalyst Fitness was pinnacle in helping me get back into shape, keeping me motivated, and seeing (and feeling) results!  I noticed that we didn't move on to another exercise until my body was ready.  They explained in simple detail every exercise we performed.  I felt very safe (even through the most challenging exercises) due to Bill's scientific knowledge of how the body works.  I never thought my Anglo-Saxon legs could be defined, but under Bill's keen eye and instruction, I could see the muscle tone in my legs.  I now see Catalyst Fitness as a partner in health and fitness in my life, for life!Lauren Loper
I was 57 years old when my son persuaded me to go meet with a fitness professional.  I went for a consultation and decided to try working out.  When I first started, I could not touch my fingers to the floor.  We worked on flexibility, balance, and strength.  With the exercise and nutritional guidance, I started losing weight, and I had more energy and better balance.  I have a very busy schedule with teaching and running a home, but I make the time to go workout.  I enjoy the trainers at Catalyst Fitness and I like the small group feeling.  I've met some wonderful people and we keep each other accountable for working out and doing cardio.Paula Lowder
Strength, flexibility, balance, endurance; these are all some of the goals I set when first starting to work with the Catalyst Fitness training team.  Amazingly enough, the results I've gotten at Catalyst Fitness encompass all of my own goals.  Strength:  everyone I've worked with has proven extremely knowledgeable and demonstrated an amazing strength of character.  Flexibility:  Working with my insane work habits and frequent changes to my schedule, they've been able to accommodate my requirements while maintaining consistent direction for my training.  Balance:  Incorporating many different types of exercise has helped me to stay focused and interested during every session, even on those days when I'd rather just head straight home.  Endurance:  Long-term commitment and attention to detail are critical to successfully achieving overall better health.  I've witnessed that from the entire staff, and I feel welcome every time I walk in the door.  I have recommended these folks to anyone who asks, and I will continue to do so.Jennifer White
After many, many failed attempts to implement an exercise routine into my busy life, I turned to Catalyst Fitness, and I could not have made a better decision regarding my health.  I never used to enjoy working out, but they manage to make each workout different, interesting, and challenging—even fun.  I receive a lot of personal attention and support at Catalyst Fitness, both from the training staff and the other gym members.  Every time I visit, I know I can expect a friendly smile, a lot of encouragement, and an excellent exercise experience.Allison Gonzales
I was 63 years old when I started at Catalyst Fitness.  I thought I was in pretty good shape—I was wrong!  I will be 65 this summer.  In the two years working with the Catalyst Fitness program, I have gained stamina, strength, and muscle tone I wish I’d had at 35.  It is amazing the confidence I’ve gained.Lucinda Whitehead
We have given Bill some real challenges, but he never gives up on us, keeps us motivated, and makes working out real fun! It has now been 20 weeks at Catalyst and we are looking and feeling so much better. We no longer move slowly out of bed in the mornings, or lose our breath going up stairs. Bill not only works with us on exercise, but he is also very serious about nutrition—he encourages us to write down what we eat so he can teach us how to eat properly to feel healthy and lose weight. We now look forward to working out, we have the energy and motivation to eat healthier meals and find other things to do besides watching TV and eating ice cream.  Thanks Bill!Dave and Carrie Nieman
From our first visit to Catalyst Fitness to today, we get the same attention, expertise, encouragement, and professionalism.  It has been a fulfilling experience for both my husband and me.  They have a flexible schedule, and the entire training staff knows my limitations and my goals—they believe in customizing the experience.  They help you every step of the way and explain things to you as many times as you want.  They are patient and understanding.Rajiv and Lalima Awasthi
Catalyst Fitness is amazing!  Bill Sonnemaker and the entire staff provide such a comprehensive approach to health and fitness.  I started training at Catalyst Fitness to get in shape for my wedding—I got a whole lot more than I bargained for.  Not only have I gotten fit in time for my wedding, I have also gained a new appreciation and love for exercise as a life-long practice.Anna Webb
The strange thing is, I never felt like I was going through a laborious work out at Catalyst Fitness—it quickly became like a second home, a place where I went to spend time with family in the midst of the friendliest of environments, yet I always came out huffing, puffing, sweating and feeling I had a great time doing it.George Janeira

Health & Fitness Professionals

Upcoming Workshops

Catalyst Fitness regularly teaches and hosts Workshops, Lectures, and Clinics. Click here to see what upcoming workshops are planned for 2015.

Exam Prep Courses

NASM, PTA Global, ACE, NSCA, and ACSM comprise the group of organizations offering the top five preeminent medically recognized and accredited certifications. Having the NASM-CPT certification will distinguish you from average trainers. These principles of fitness training are based wholly upon the sciences: functional anatomy, physiology, and biomechanics and includes the most advanced and established…


Catalyst Fitness Fully Integrated™ 3 Day Mentorship is offered at our Atlanta facility during the following dates in 2015. March 6th-8th and October 2nd-4th. If you would like us to come to your facility please email us at info@catalystfitness.com 3 Day Mentorship Fully Integrated™ Program - Atlanta, Georgia Download your PDF flier here! Program Objectives…


Catalyst Fitness regularly teaches and hosts Workshops, Lectures, and Clinics. Click here to see what upcoming workshops are planned for 2015.

Business Solutions

Catalyst Fitness is the recipient of numerous awards such as the the 2009 Kennesaw Business Association of Business of the Year and the coveted 2007 IDEA International Personal Trainer of the Year. It is the belief and goal of the Catalyst Fitness Team that if our industry is going to progress in the right direction…

Our Partners

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