Diffenbaugh is a general contracting company based in Riverside, CA. Diffenbaugh has enjoyed working with some of the area’s premier clients and has expanded into many project types from auto dealerships to university facilities, banks, large industrial warehouses, Class-A office space, retail centers, medical facilities, hotels, churches and high-tech centers.  

Diffenbaugh has always been an innovator and was one of the first contractors to perform tilt-up concrete construction.  Inland Concrete Constructors, an affiliated concrete subcontractor created by Diffenbaugh, continues this tradition and performs concrete services for other selected general contractors and developers throughout California.  Diffenbaugh was also a co-founder of the Citadel Group, a corporation comprised of major general contractors in major markets throughout the United States.  Through Citadel Group, Diffenbaugh can offer best-of-class construction services to national clients throughout the country.