5. LinkedIn, $972 Million
CEO: Jeff Weiner
LinkedIn is included on this list based on the fact that its service is built upon the company's own platform and powered by its own servers and other infrastructure. Although researchers concede that the company is not likely to offer cloud services in the usual sense, the emphasis upon leveraging the cloud architecture is the basis for LinkedIn's inclusion on the list. "They are an example of the company that can fit into the software-as-a-service or platform-as-a-service model," said Baird Technology Research analyst Colin Sebastian, in an interview with CRN.