About C3

C3 Definition: The letter C is Positive. Creative. Social. Good-humored. Extravagant. Dexterous.  The letter C can sound soft, or hard, as in the word "conceive," demonstrating its ability to adapt. In music, middle C is the only note that appears in both the treble and bass clefs.

Both C and 3 are the equivalent of each other. One being the number form and the other being the letter form of each other. Different but the same. A contrasting paradox of balance and reflection.

The number 3 repeats itself throughout history to claim its significance in our world and existence. We at CLIENTEL3, hope to embody the significance of this to deliver a unique and balanced experience to all our patrons. Opposites define each other, but we must seek the 3rd point, the pivotal axis of balance between these opposites to gain harmony within ourselves and our universe.

There are 3 C's which represent CLIENTEL3: Community, Character and Commitment. These 3 words are emblazoned in our studio to remind us daily of what is paramount to all involved.

The 3 is also a reflective equivalent of the letter E, serving to remind us to reflect upon the past as we peer into the future. “Life can only be understood backwards; but it must be lived forwards.” ― Søren Kierkegaard


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Our Back Bay studio creates the perfect setting for one-on-one training

Innovative Equipment

Gain access to some of the most innovative equipment and techniques in the fitness industry

Client Focused

Safely engage in a fun and challenging routine under the watchful supervision of a qualified trainer

Team Approach

Our clients don’t hire one trainer, rather they have full access to our entire staff of trainers and experts