If you are hosting a website on WordPress that caters to the service of customers by listing various kinds of items in a directory format then the Directory WordPress theme is definitely the one to look out for. 

Price : $79

Released in 2013, this theme has received 100 updates in a period of two years, demonstrating the theme’s popularity amongst millions of users.

This theme allows you to set up your content in an online directory portal, allowing visitors and customers to lookup an item listed in the directory inside your website.

Unlike other multi-purpose themes, it doesn’t include plugins but it compensates by giving the best directory portal experience.