Heavy Civil General Contractor

Mobilizing Economies Through Infrastructure

Reputable & Dependable In Southern California Since 1923

Local Resources Throughout Southern California

Global Support From the Colas Group and Bouygues S.A.

Award-winning Quality; Accredited In-House QC Lab & Support

Best in Service - Right Time & Right People

Safety-Focused Company Culture: Goal Zero

Sully-Miller is the most integrated and versatile general contractor in the region.

Sully-Miller Companies comprise Sully-Miller Contracting, United Rock Products, and Blue Diamond Materials. All companies support each other.

Blue Diamond Materials provides the hot mix asphalt, 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.

Wide Market Capabilities

Large infrastructure projects can have challenges that impact budgets and deadlines.

As an experienced partner with the right resources, we easily adapt so the job gets done safely and efficiently.

Outstanding EMR
0 +
Local Airport Projects in the Last 10+ Years
# 1
On ENR’s 2021 Top 50 Domestic Heavy Contractors
1 k
Tons of P-401 Paved in the Last 5 Years

Organizational Excellence

Our vertically integrated company streamlines any project to ensure cost efficiency, quality, and service.

United Rock Products

Locally sourced aggregate and inert fill materials

Blue Diamond

High-quality asphalt mixtures and service


Access to a wealth of resources & innovative technology

Join The Team

If you’re motivated, dedicated and looking for a challenging career in the construction industry, it’s time to join the Sully-Miller team.

Serving Southern California for a Century