Solomon Diving, 1571 Beechwood St, Monroe, MI 48162, US

Holcim is one of the world s leading suppliers of cement; aggregates, including gravel and sand; concrete; and construction-related services. From its origins in Switzerland, the group has grown into a worldwide organization with market presence in more than 70 countries on all continents. The group employs approximately 57,000 people. In the United States, Holcim distributes more than 16.7 million tonnes of cement and related materials each year by ship. The company s corporate structure in the United States is divided in 13 different marketing regions in three geographical divisions that serve customers in more than 30 states. The company employs more than 2,300 people. A Holcim facility is located in Waltham, Mass.