• Aggregates


    Con-Agg Companies operates as Boone Quarries and Norris Quarries throughout central, north central and north west Missouri, as well as central and northeast Arkansas. With over 50 locations, we are geared up to meet your aggregate requirements.
  • Ready Mix

    Ready Mix

    Con-Agg Companies operates its ready mix operations as Columbia Ready Mix, Land Concrete and now Razorback Concrete. Located in Columbia, Moberly and many plants in Arkansas, we are able to service the Central / Northwest Missouri and Central / Northeast Arkansas area from home builders to highway contractors.

Service Locator

Please click on the map below to get started in locating your service provider.

Locator Light with Locations and Titles
Get Started
  • Columbia Ready Mix Logo
  • Norris Quarries Logo
  • Land Concrete Logo
  • Underground Records Management Logo
  • Subterra Underground Warehousing Logo
  • Boone Quarries Logo
  • Razorback Concrete Logo
  • Razor Rock Materials Logo
  • Sandidge Concrete
  • Mid-Missouri Limestone

Con-Agg Companies - Aggregates, Concrete and Warehousing

2019 BFV EMPLOYERS1 002Con-Agg Companies is a diversified supplier of crushed limestone products, concrete, warehousing facilities and record-management services. Headquartered in Columbia, Missouri, Con-Agg has over 50 quarry and ready mix locations serving a large geographical footprint in Central / Northwest Missouri and Central / Northeast Arkansas.

Con-Agg takes great pride in filling the needs of its individual customers in a variety of markets, while contributing to the stability of the local economies in which it operates. We provide the materials that pave the path to the future of our communities and conduct ourselves with strict safety principles and environmental stewardship at the forefront of all our business decisions.

With over 500 employees, the Leadership Team at Con-Agg is committed to providing the safest operating culture possible. A true team effort ensures that this mission is carried out each and every day. Through the years our mining operations have been recognized by the Missouri Limestone Producers Association as Best-in-Class for both large and medium-sized operations. Recent honors include the Hillenkamp-Rush Meritorious Safety Award and special commendations for 22 consecutive years with no lost-time accidents.

Emphasis on Safety

Emphasis on Safety

Norris Quarries employees were recognized for 1 million man hours without a recordable incident.

Read more

We Are Hiring

We Are Hiring

Check out the Employment page for a list of career opportunities with Con-Agg of MO.

Read more

Useful Calculators