Vtiger
If you own a startup, having a CRM application that allows you to manage your company's growth while remaining highly affordable is essential. Vtiger is a CRM software solution used by thousands of startups across all industries in over 120 countries. The software is available either as a free open source edition that you can deploy on your own servers or a cloud-based one that is hosted for you and available at a low monthly fee. With Vtiger, you get all of the tools you need to manage your customer interactions in a simple, yet effective manner. The CRM has a variety of features that let your team members collaborate efficiently on sales projects, empowering them to close more deals each day. It also has a help desk module that can be added to the sales and marketing portion. This lets you provide the best quality support and after-sales services to your customers.