Ozinga

Ozinga is a fifth-generation, family-owned American supplier of construction materials, in business since 1928. The company produces ready-mix and specialty concrete - a line it has run since 1952 - and supplies cement, slag, supplementary cementitious materials, aggregates, sand, gravel, limestone, soil, salt, recycled materials, concrete blocks, ADA tiles and admixtures. It operates across the Midwest United States and South Florida, and remains privately held, with no external funding disclosed. It began as Conrad & Ozinga Coal & Coke Company in Evergreen Park, Illinois.

Materials are moved by an in-house bulk-transportation operation spanning truck, rail, barge and ship terminals, alongside terminal services. The company is known for its red-and-white striped mixer trucks. Its technical work covers ready-mix concrete production, bulk-material logistics, mobile concrete plant operations, portable crushing, research and development, coal-combustion-product beneficiation and parking-lot design. Additional services include parking-lot design and portable crushing for construction, industrial, public-works and infrastructure customers.

The business has grown in part through the acquisition of other family-owned concrete companies, and has been through the Great Depression and the second world war, evolving from coal and coke into construction materials. Ozinga invests in research and development and in sustainable practices, including recycled materials and coal-combustion-product beneficiation. Further detail is available at https://ozinga.com/.