Our Self-Perform Entities
Clark Foundations
Preconstruction, estimating, and self-performance of support of excavation and deep foundations work
Clark Concrete
Structural concrete work, including scheduling and budgeting of conceptual documents, formwork design and installation, and concrete pouring and finishing
Clark Civil
Heavy and civil construction, with expertise ranging from self-performance to comprehensive design-build delivery
Clark Water
Water and wastewater infrastructure projects, offering custom planning, design, construction, and construction management services
C3M Power Systems
Construction, rehabilitation, and maintenance of electrical and special systems for complex infrastructure projects
Shirley Contracting Company
Comprehensive transportation, heavy civil, and site construction solutions
Guy F. Atkinson Construction
Heavy civil projects including bridges, highways, mass transit, mining, energy, and tunneling