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Meet Arx

ARX simplifies the most comprehensive full-body workout through perfectly matched, motorized resistance. Short for “Adaptive Resistance™ Exercise,” ARX is scientifically proven to deliver the safest, most effective form of resistance exercise in less time. The company’s all-in-one strength training machines dynamically adjust resistance in real-time to personalize every workout through its patented technology. ARX empowers and challenges individuals to achieve their fitness goals one perfectly calibrated repetition at a time. No dangerous weights to drop and no adjustments to make, just perfect resistance every time. 

Founded in 2011, ARX is headquartered in Austin, Texas. ARX technology is designed for private and commercial use.

A Message from
the Founder

Founder of ARX- Mark Alexander

A Message from
the Founder


Invest in ARX.

Mark Alexander
Entrepreneur & Chairman of ARX

Who Uses ARX?

Tony Robbins

Tony Robbins

Author, Entrepreneur,
Philanthropist

Ben Greenfield

Ben Greenfield

Founder of Greenfield Fitness
Systems & Kion

Dave Asprey

Dave Asprey

Founder of Bulletproof
& Upgrade Labs