If you consider yourself an entrepreneur, you probably don't dream about maintaining the status quo. Instead, you thrive on trying to take what you have and grow it.
If that describes you, these franchises may match your personality. According to our studies, the businesses on this list enjoyed the most growth by number of units in North America between July 2016 and July 2017.
But these companies aren't one-year wonders. We've tracked each company's growth by number of units since 2008, and you can see those numbers for yourself by checking out the full list of fastest-growing franchises here.
Start the slideshow to see the 13 fastest-growing franchise opportunities on the Entrepreneur Franchise 500.