The best customer relationship management features include an analysis of the business and the changing conditions that take place. Lists should be managed so that they are easy to understand. Contacts should be updated on a regular basis and organized so that the client can view current contacts and potential leads. 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.