About Us

George W. Sully and Earl B. Miller founded the company in 1923 with only five highway employees, one asphalt plant and a team of mules. Sully-Miller has grown with Southern California, building much of the region’s infrastructure.

We Are

Diversified and collaborative far below and above the roads Sully-Miller Contracting paves. As a part of Colas USA, Sully-Miller has the professional network, resources, project management, and industry leading technology and equipment to deliver quality projects on time.

We Do

Offer award-winning asphalt paving, concrete paving and structures, grading, wet and dry utilities, electrical construction, and pavement preservation. Sully-Miller Contracting Co. has a fully accredited AASHTO certified lab and Traffic Control division. We focus on safety at every juncture - on every project - 24 hours a day, 7 days a week.

We Serve

Many Southern California market segments including airports, seaports, rail and intermodal, military/federal, roads and highways, and specialty projects. Since 1923, Sully-Miller’s success is firmly based in our transportation infrastructure expertise, serving both the public and private sectors.

We’re Kind of a Big Deal

Sully-Miller Contracting Co. is a licensed General Engineering Contractor in the states of California and Nevada.

CA License #747612 Class A and C-10
NV License #0077170 Class A

Sully-Miller Companies consist of Sully-Miller Contracting, United Rock and Blue Diamond Materials.  Each company supports the other. Blue Diamond Materials provides the hot mix asphalt manufacturing, United Rock – the aggregate and Sully-Miller Contracting executes the projects.  Accessibility to extensive resources and capabilities, enable Sully- Miller Contracting to handle a broad spectrum of projects.