Sage CRM is an easy to use, scalable, highly customizable, browser-based CRM software solution for sales, marketing and customer service. SageCRM can be installed on-premises, in a colocation facility or can be rented as a service. SageCRM has pre-developed integrations for a number of popular accounting packages including Sage MAS 90, Sage MAS 500 and Sage ACCPAC ERP.