Rainmaker Systems Inc. On July 25, 2012, Rainmaker Systems Inc. finalized the renewal of a material Statement of Work (SOW), under its Vendor Services Agreement (VSA) with Microsoft Corporation under which the company will provide global telesales and chat sales services to Microsoft. The company will drive global trial subscription sales to business customers for certain Microsoft cloud based products. The SOW covers geographies in the Americas, EMEA and the Asia-Pacific region. The three-year term of the SOW is measured from July 1, 2012 through June 30, 2015, with annual renewal options thereafter, and may be terminated by Microsoft prior to the expiration of its term upon 60 days written notice.