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Heidelberg Materials is among the leading producers of bulk and bagged cement in North America.

Operational for over 100 years, United Security Seals Inc. designs and manufactures a range of tamper-evident and positive security seals. Located in Columbus, Ohio, it is one of the largest North American manufacturers of lead and wire seals. The company offers an array of products, including lead and wire security seals, aluminum security seals, plastixlox and padlock seals, sealing presses and accessories, spooled and custom cut wire and assorted cargo security seals. United Security Seals Inc. serves more than 1,000 domestic and international customers. It caters to the needs of both the public and private sectors.