It depends on your field of activity, but the answer in most cases is a categoric yes. Are you the owner of an E-commerce company? Then you would be one of over nine million such businesses. To register a positive turnover, you will need an advantage, which could come from accessing the professional services of a custom web application development company. CWAs are different from regular websites because they are created for a specific purpose, namely to improve the user experience when trying to complete specific tasks. In a retail site, the purpose of a CWA might be to provide the interface for users completing purchases, while in a banking site, a custom web application might be needed for performing financial transactions.