It takes quite a stellar reputation to be listed as one of the best web app developers. These web design firms were able to stand out from their peers by showing that they have skilled teams of expert developers who are able to design apps that keep customers coming back for more. The web apps designed by these firms all provide significant value to the end users' daily lives, which is why they have had such great success in increasing sales and improving revenue for their clients' businesses. These top companies design apps for businesses of all sizes and specialties. The companies below have been reviewed based on a wide range of qualitative and quantitative statistics. In some cases, variable listing fees effect position on this list; however only highly-regarded firms are accepted through our review analysis. Learn more about our ranking process here.