CSI is a Project Development and Operational Services Company Specializing in the Corrugated Packaging Industry. 9 Sheet Feeders, 3 Box Plants, 14 Corrugators... and counting. The past 30 years has seen over 60 Sheet Plants synergize and take control of their destiny by integrating raw material supply, utilizing the services of Corrugated Synergies International LLC. As the innovative leader in sheet feeding to the corrugated industry, CSI has developed and operated nine highly successful sheet feeder operations, three full line box plants, employing 14 state-of-the-art corrugators. We also currently have two new sheet feeders under development.