Summit Materials

Martin Marietta Materials

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Every member of our ONE Martin Marietta team is driven by our shared values of safety, integrity, excellence, community and stewardship. Our goal is to build a world-class organization committed to the long-term success of our employees, communities and other shareholders. We are a member of the S&P 500 Index and a leading supplier of aggregates and heavy building materials. Through a network of operations spanning 29 states, Canada and the Bahamas, our teammates supply the foundational resources on which our communities thrive and grow. Our Specialties business provides high-purity magnesia and dolomitic lime products used worldwide in environmental, industrial, agricultural and specialty applications. We provide exceptional customer service and strive to be good neighbors in the 500 communities in which we operate. We also support each other while working to build a legacy that will make our loved ones proud. We know that together, we’ll make an impact that lasts far beyond tomorrow.

Preferred Materials

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Preferred Materials, Inc., A CRH Company, is a leading supplier of asphalt, concrete, concrete products, and paving services in the Southeast, with 12 asphalt plants, 32 ready mix plants, and more than 1,700 dedicated and trained professionals. Preferred Materials is located in major growth markets in Florida, making us perfectly positioned to partner with and supply public and private customers of any size. Customers who require specialized resources for full-service project delivery are assisted by our Construction Services team. Preferred Materials takes Quality Control very seriously and operates four CMEC-accredited concrete QC labs throughout Florida. Asphalt labs are even more numerous. With a total of 13 CMEC-accredited labs in Florida and our DOT-certified labs in both Georgia and South Carolina, Preferred Materials asphalt labs are only minutes from your job site. These labs are where our Quality Control Managers perform rigorous daily testing of our materials and mixes as well as develop customized solutions to meet specific construction needs. Preferred Materials is part of CRH – the largest manufacturer of building products in North America, operating in 50 states and four Canadian provinces.

Ash Grove Cement

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Ash Grove Cement is a pioneer in the US cement industry. Tracing its roots back to 1882, the company is one of the largest cement manufacturers in North America. Ash Grove Cement's products include portland and masonry cements used in roads, bridges, and buildings, as well as ready-mix concrete. The company operates nine plants with an annual capacity of some 9 million tons of cement; it also operates aggregate quarries in the US and Canada and a lime plant in Oregon. Other operations include Ash Grove Packaging, which offers packaged materials such as sealers and additives, caulks, and stucco. Lester T. Sunderland joined Ash Grove Cement in 1909; his heirs own the company. ABOUT US Founded in 1882 2,200 employees 12 cement plants nationwide 41 cement terminals

CalPortland

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CalPortland is the leading producer of cement, concrete, aggregates, asphalt, and construction materials in the western United States, delivering high-quality products and reliable service that have defined our company for more than 130 years. With operations across Alaska, Washington, Oregon, California, Nevada, Arizona, and British Columbia, we support the growing infrastructure of communities throughout the western region. Since 1891, our commitment has remained the same: to produce superior materials, execute them with integrity, and continually advance the science behind sustainable construction. Our longstanding reputation for quality, reliability, and technical excellence is why contractors, engineers, and builders trust CalPortland time and time again. EXPECT MORE … WE DELIVER!® This isn’t just our motto, it’s the standard we uphold every day.

BMC Enterprises

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BMC Enterprises is the largest ready mix concrete producer in the metropolitan St. Louis area with over 40 plants and 250 trucks to serve all your concrete needs. Our company has called St. Louis home for 100 years. We have helped build St. Louis one cubic yard at a time, supplying ready mix concrete and building materials to customers across the state. Our success lies simply in the ability to provide extensive experience and quality products at a valuable savings to our customers.