For IT people or businesses with an IT department (even one or two guys), SuitCRM is the perfect solution. It’s an award-winning open-source, enterprise-ready Customer Relationship Management (CRM) software application. You just have to download and install it on your server. Click here for a step-by-step download and installation guide.
SuitCRM also offers hosted plans starting at £95 Per Month with a 30-day free trial.