A Tradition of Ingenuity

At Jay Dee Contractors, our history speaks as much about our past as it does our present. Immersed in our culture is an unbreakable attitude, a team passion that pushes the boundaries of innovation and prevails against all odds. Hard work, dedication and honesty, the core principles set forth by our founder, John DiPonio, live on in his legacy. The DiPonio brothers, Thomas, John and Michael, who jointly own the company today, carry on the legacy of their father in part, by maintaining a commitment to quality, a dedication to craftsmanship and a can-do attitude.

John DiPonio

old construction picture

Established in 1965, Jay Dee has built an impressive project resume. Specializing in heavy underground construction, our work has been responsible for the successful execution of several noteworthy projects, known for both size and complexity. Most notably, the Little Calumet Leg, the Thornton Transitional Reservoir, Big Walnut Augmentation/Rickenbacker Interceptor, Brightwater Tunnel Section 3 Completion and the University Link Light Rail Contract U230.

Over the past 50 years we’ve been meeting the challenges of large tunneling projects while maximizing efficiency and quality. It’s just the way we do business.

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