SIS Group LLC is a North American manufacturer of precast concrete products including rail products, tolling utility buildings, firewalls, ballistic protection, and blast mitigation, as well as structural precast panels for residential, industrial, and office developments.

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Performance Precast is the most innovative provider of precast concrete solutions in the Southeastern United States, combining decades of engineering, production, sales, experience, and ingenuity.
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Carolina Concrete Structures (CCS) manufactures essential precast products for Infrastructure applications using exclusively Hi-Strain™ Concrete.
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Basalt Fiber Reinforced Rebar is lighter and stronger than convention steel rebar and exhibits higher stiffness, strength, and chemical resistance compared to E-glass.
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 Promontory™ Sleepers are high performance railroad ties engineered from proprietary materials. Promontory™ Precast Foundations are lighter than concrete, allow for offsite pour, and save costs.
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Anker precast foundations use less concrete, are produced under controlled  conditions, can be installed on the construction site regardless of weather and do not need to set hard on site.