Arizona Underground Inc. is a heavy civil contractor located in Pima County. Established in 1978, Arizona Underground Inc. has successfully completed hundreds of public & private projects. It’s reputation supersedes itself as a general contractor who greatly values its relationships. We strive to be the best in quality and on-time delivery of completed projects, all while being a safe place to work. Thanks to our highly valued and experienced staff we continue to push the envelope of mixing technology with our proven construction methods. Our goal is to fill Pima County with quality infrastructure that homeowners and taxpayers can be proud of. The Old Pueblo is our home!