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California Infrastructure & Industrial Group (CIIG) is a leading design-build contractor specializing in innovative construction solutions and advanced Wastewater Treatment systems.

With decades of combined experience, our team delivers comprehensive services from initial design through final construction, ensuring quality, efficiency, and regulatory compliance on every project.

We pride ourselves on utilizing cutting-edge materials and technologies, including non-combustible framing systems and state-of-the-art Wastewater Treatment solutions.