About Sully-Miller Contracting Co.

Among the names of reputable general engineering contractors in Southern California, one name comes up time and time again - Sully-Miller Contracting Co. For hundreds of clients, this name has been synonymous with professionalism.

Professionalism is Sully-Miller's primary aim and has been since George W. Sully and Earl B. Miller founded our firm in 1923.  Today, building confidence with our customers continues to be our mission.  As part of the Colas Group, we have the technical and financial strength to build infrastructure ranging from road construction and heavy highways to airports and commercial private works.  Our professionalism stems from 10 core values embedded in every aspect of our work: Safety, Quality, Respect, Trust, Integrity, Enjoyment, Innovation, Teamwork, Social Responsibility, and Continuous Learning.

Sully-Miller is vertically integrated to increase operational efficiency, reduce costs and add value for our customers. Our United Rock Products division is a 300-acre plant where raw construction aggregate material is processed into sand and gravel through cutting-edge crushing and screening operations. Our hot and warm mix asphalt manufacturing division, Blue Diamond Materials, operates six NAPA Diamond Quality asphalt plants and one portable rubber asphalt plant in Southern California. Las Vegas based, Southwest Iron Works LLC, has the ability to perform both public and private work as Sully-Miller Contracting. These divisions have the capability to produce specialty mixes and products according to our customers' needs-with extensive in-house quality control and a material design lab that is fully accredited by AASHTO.

Versatility is the cornerstone of our workforce. We have dedicated and experienced in-house crews for asphalt paving, concrete, grading, storm drain, sewer and waterline installation, dry underground utilities, pavement preservation, and traffic control. Together, these resources, capabilities and teams provide the versatility to excel and self-perform on even the most intricate public or private projects.

Downtown Los Angeles