Rainmaker Systems Inc. announced it has signed a one year agreement for telesales services with a new client, Demandforce. The Rainmaker B2B e-commerce suite is a simple, integrated, global solution that marries B2B focused technology with business process and sales expertise. The Rainmaker solution specializes in efficiently selling into its clients' hard to reach middle market. Many companies are working with multiple vendors or internal solutions that lack integration to support their global sales efforts, resulting in lost revenue opportunities.