ConAgg of Missouri is a group of 5 companies: Columbia Ready-Mix, Boone Quarries, Underground Records Management, Subtera and Land/Chariton County Concrete.
Located in Mid-Missouri, ConAgg is a diversified supplier of concrete, aggregates, crushed limestone products, warehousing facilities and record-management services. We fill the needs of our clients in a variety of markets, contribute to the stability to the local economy and provide the materials that literally pave the path to the future of our community.
Boone Quarries began selling aggregates over 50 years ago. Columbia Ready-Mix has served the Mid-Missouri construction industry since 1976. Underground Records Management and Subtera are examples of businesses that utilize workspace created by mining operations.