Vtiger
Vtiger is an open source CRM software that is designed to grow together with your business. This makes it suitable for companies ranging in size from startups all the way to larger firms that have a presence around the world. It allows you to deliver a high-quality customer experience across your sales, marketing and customer support departments. You can easily manage and automate various types of tasks, allowing you to save both time and money as your staff focus on more important things: promoting your company's products and helping your customers by providing them the best possible customer support experience. Vtiger is affordable and offers both annual and monthly subscription options for those who don't like to be tied down. All subscribers benefit from 24 hour support by phone, live chat and email. There is a free trial option that allows you to explore Vtiger and see for yourself just how powerful it is.