Aubrey Black has been in the Increte Distribution and decorative concrete business for 20 years. Our company is a complaint-free member of the Better Business Bureau. We are also a member of the Tennessee Ready Mix Concrete Association of Chattanooga. Aubrey Black is certified by the American Concrete Institute. Our company is licensed, bonded and insured. We will be happy to provide you with a certificate of insurance. Award Winning Company. OSHA Certified Complete Showroom Available.. Stone