Fitness franchise Fit Body Boot Camp has revealed that it has more than 200 new locations under development.

Founded in 2009 by entrepreneur Bedros Keuilian, the concept is based on providing 30-minute HIIT sessions and professional guidance at a "fraction of the cost" of personal training.

The brand has grown rapidly across the US – and also has locations in the UK, Australia and Canada – and was recently listed on Inc. Magazine's list of fastest-growing private companies in the US.

Keuilian has branded Fit Body Boot Camp as the "anti-franchise franchise", as it has no percentage-based royalty fees like many other franchises.

Rather, all franchisees pay a monthly flat rate that allows them to grow their business without giving an increasing percentage to the franchisor.

"The last few years have been a time of tremendous development for our brand as we have grown to nearly 500 locations with another 200+ in development," Keuilian, founder and CEO said.