Who we are
Big gym capacity. Bespoke experience.
Our Story
CLIENTEL3 is a private personal training studio hidden in plain sight in the heart of Boston’s Back Bay. Since 2016, we’ve served individuals who seek more than a typical gym those who expect discretion, precision, and a standard of care that matches their ambition. New to training or a seasoned athlete, recovering, rebuilding, or leveling up; we tailor every experience to meet you where you are, with intention and care for where you’re headed.
Premium facilities
Every detail designed with your success in mind.
No interruptions
Sessions only by appointment.
Relaxing atmosphere
Supportive environment to train at your own pace.

OUR CULTURE

COMMItMENT
The state of being dedicated to a cause or activity. Keeping your word regardless of circumstances or adversity.

CHARACTER
The intangible qualities that determine an individual. A particular combination of the morals and values that define a person or place.

COMMUNITY
A sense of unity within a group as a result of sharing common attitudes, interests, and goals. A tribe of people governed by a shared pledge to thrive together
our Team
Everyone at C3 is chosen for their ability to listen deeply, adapt with precision, and build real human connections. We believe that true change isn’t just about the body it’s also about mindset, confidence, and emotional strength.

chi bang
Hi, I’m Chi Bang, and I’ve spent the last 25 years immersed in the fitness and wellness industry.
My journey has taken me across different continents, working with high-profile athletes, celebrities, and everyday individuals who are all looking to unlock their full potential through fitness. Over the years, my approach has evolved, but my core belief remains the same: fitness should empower you to move through life with confidence, strength, and purpose.

addison chung
My name is Addison Chung. I have 15+ years of high-level gymnastics experience, 5+ years of coaching experience, and a human physiology degree from the University of Iowa.
Understanding that regular exercise can drastically reduce the risk of injury and enhance quality of life is a crucial concept to me because my goal when working with any client is to help them attain their own goals while functionally preparing their bodies for healthy and active longevity.

Marin Chamberlin
As a former D1 track and field athlete, I specialize in olympic lifts, powerlifting, and weightlifting. My approach emphasizes accessory movements and mobility to train the whole system.
I hold an M.S. in Exercise Science and a B.A. in Neurobiology, Physiology, and Behavior.
My education and background in sports have taught me that exercise is medicine. Our bodies are meant to move and to live long, healthy lives.

Ogbonnaya Chikezie
I hold a Doctorate in Physical Therapy and am certified in dry needling, which complements my holistic approach to rehabilitation. My philosophy focuses on restoring optimal function and enhancing performance through a comprehensive and individualized approach. With a deep understanding of biomechanics and movement patterns, I assess and treat clients by listening to them, identifying movement dysfunctions, and developing tailored strategies to improve mobility, strength, and coordination.

Jean pierre sulbaran
I became part of the team because I enjoy blending creativity with strategy. My background in graphic design has always been centered around finding visual solutions that look good and serve a purpose.
As part of my role in the Customer Service Team, I help maintain our brand’s visual identity.
If you interact with our online content or receive any of our visual materials, chances are, I’ve worked on it.

andrea rico
I’ve always been driven by a passion for organization and delivering exceptional service.I have a background in administration and customer relations, and as part of the Customer Service team, I focus on optimizing our systems to keep them efficient.
I’m here to make everyone’s lives easier. I manage client inquiries, handle bookings, and ensure everything behind the scenes works like a well-oiled machine.

ricardo rodriguez
With over 9 years of experience in project management and virtual assistance, I focus on building strong teams and tailored workflows designed to keep projects running smoothly.
I’m passionate about helping business owners bring their vision to life by empowering people and automating processes. I create systems that drive efficiency and measurable results while creating a sense of purpose and collaboration within the team.
do you want to work with us?
our STUDIO
Every inch of the studio was with your success in mind. Removing distractions to maximize focus. No crowds or distractions, just you, your coach, and your goal.







BOOK YOUR ASSESSMENT SESSION
Frequently Asked Questions
Our one-on-one training sessions start at $150 per 60 minutes, but the final structure really depends on your goals, preferences, and the level of commitment you’re ready to bring to the process.
Not at all. You don’t need any previous fitness experience to start training with us. You can be a complete beginner or a professional athlete. Our space is designed to be supportive, non-intimidating, and focused on you, no matter your starting point.
Yes. In addition to personal training, we offer:
Pilates sessions
Physical therapy
Longevity programs for people looking to age strong and move well
Workshops and intensives on topics like nutrition, mobility, and recovery
Our services are designed to complement each other and give you a 360° approach to health and performance.
Yes. we offer customized corporate wellness and small-group training programs designed for companies, leadership teams, and high-performing groups. These sessions combine expert coaching, tailored programming, to ensure a focused, results-driven experience.

Have more questions?
consistency outlasts inspiration
We stand for progress and the pursuit of our full potential
Aidan Antonitis
CLIENTEL3 COACH