Sully-Miller Contracting Co., established in 1923, is a leading heavy civil general contractor in Southern California. Specializing in infrastructure projects, the company is notably versatile and integrated, comprising Sully-Miller Contracting, United Rock Products, and Blue Diamond Materials. These divisions collectively support one another, with Blue Diamond supplying high-quality asphalt, and United Rock offering aggregate and inert fill materials, while Sully-Miller spearheads project execution.
Sully-Miller leverages local resources and extensive capabilities, backed by global support from the Colas Group and Bouygues S.A., enabling it to manage a wide range of infrastructure projects including roads, highways, airports, seaports, and rail systems. The company is committed to safety with a
