Ozinga, headquartered in Mokena, Illinois, first joined Wisconsin Clean Cities in 2016. The fourth-generation, family-owned company is in its 92nd year in business and now has more than 70 locations in Wisconsin, Indiana, Illinois, Michigan, Louisiana and Florida.

Established in 1928 in Evergreen Park, Illinois as a small coal and coke yard, Ozinga survived the Great Depression and World War II before becoming one of the first ready mix providers in the Chicago region. Ozinga has continuously expanded its product and service offerings to faithfully meet the needs of builders while holding to its longstanding commitment to provide it all at a fair price.

Today, the company provides concrete, bulk materials and energy solutions while offering transportation services through an extensive network of truck, rail, barge and ship terminals. Perhaps best recognized for its red- and white-striped concrete mixer trucks, the ready-mix concrete manufacturer produces, sells and delivers sustainable concrete products, recycled concrete blocks, gravel and other materials and provides a variety of compressed natural gas services.

In 2011, Ozinga made a bold pledge to convert all 500 vehicles in its fleet to compressed natural gas.