Upstate decision makers turn to the GSA Business Book of Lists throughout the year to make the connections that will grow their businesses. The annual Book of Lists is a true business-to-business tool that is easy to navigate and provides a wealth of information, statistics and contacts for the Upstate's top companies in the region's key industries and business sectors. In the Book of Lists, businesses are ranked by number of employees, revenues and other factors. The 2013 Book of Lists is an invaluable business resource.