Rackspace Hosting (NYSE: RAX), provider of cloud computing services, is the founder of OpenStack®, an open source cloud platform. The company provides Fanatical Support® to its customers, across a portfolio of IT services, including Dedicated and Public Cloud. Rackspace has been recognized by Bloomberg BusinessWeek as a Top 100 Performing Technology Company and was featured on Fortune’s list of 100 Best Companies to Work For. For more information visit the company’s Web site at: www.rackspace.com

William Blair & Company is a global investment banking and asset management firm committed to building enduring relationships with clients and providing expertise and solutions to meet their evolving needs. An independent and employee-owned firm, William Blair is based in Chicago, and has office locations in 10 cities, including London, New York, Shanghai, and Zurich. For more information on William Blair & Company, visit www.williamblair.com

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