• 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.
  • Warehousing


    Con-Agg Companies operates Subterra and Underground Records Management (URM) to satisfy the storage needs of many area businesses.

Service Locator

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  • 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

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It's not the end of everything though : you may be interested in the following pages on our site:

Emphasis on Safety

Emphasis on Safety

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

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We Are Hiring

We Are Hiring

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

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