Headquartered in Sioux Falls, South Dakota, Bell Incorporated is one of the country's 5 largest Independent producers of fold ... ed carton packaging. Bell Is also the worlds largest manufacturer of overnight envelopes, and we count some the worlds largest food industry companies among our valued customers. Behind these achievements is a low cost business model that combines investing in the latest high speed converting technology, maintaining a lean and cost focused organization, growing prudently, and supply chain practices built on best practices and sustainability. Bell's customers benefit from one of the highest value, lowest cost structures in the industry. Bell Incorporated maintains offices in Sioux Falls, S.D, Chicago, IL & Columbus OH read more