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Holliday Rock Co., Inc. is a prominent construction materials manufacturer based in Upland, California, with over 85 years of experience. Founded in 1937, the company operates 40 locations throughout Southern and Central California. It specializes in producing aggregates, hot mix asphalt, and ready-mix concrete, serving a variety of infrastructure, commercial, and residential projects. As one of the largest independent manufacturers in the United States, Holliday Rock is committed to safety, sustainability, and quality. The company employs around 223 people and emphasizes workforce empowerment and community engagement. It actively collaborates with industry organizations, including the Associated General Contractors of California and the National Ready Mixed Concrete Association, to promote best practices in construction.
Tommy Car Wash Systems is a leading provider of modern automatic car wash designs, carwash equipment, and carwash facilities.
BARTEC is a world market leader in explosion protection, providing turnkey trace heating, electrical safety solutions, mobile worker solutions, and analyzers & sensors for hazardous environments.
Weems Asphalt is an asphalt company that provides paving, sealcoating, crack sealing, asphalt repairs, grading, concrete, asphalt maintenance, asphalt milling, striping, soil stabilization, and asphalt overlay services.