Closure Systems International Inc (CSI) is a global leader in designing and manufacturing innovative closures for a wide range of applications in consumer and industrial markets. In addition to high quality closures and capping equipment, CSI provides unparalleled customer and technical services for high-speed application systems. Major categories served include carbonated soft drinks, bottled water, juices, isotonics, teas, adult beverages, dairy, foods, pharmaceutical and automotive fluids.

CSI's cutting-edge closure solutions help customers maximize profits by increasing the marketability of their brands and optimizing their total cost of operations. From reducing the impact of manufacturing operations to an industry-leading suite of sustainable closure profiles, CSI’s sustainability expertise and sustainable product offerings ensure customers stay on top of market trends and consumer demands.

CSI is headquartered in Indianapolis, IN, and produces 50+ billion closures annually.