The default theme is what you see on the
demo site, so yes they have certainly made some modifications the default theme, specifically with the location options it appears they may have created a subdomain for each region, possibly with the use of a
WordPress multisite setup. Also some other layout changes including the header and color scheme. If you're looking to implement these and not make the changes yourself, then you can find developers for hire on our
certified partners page who can provide a quote if you make contact directly with an outline of your requirements. Thanks.