About Us

Home » About

Who is Chicago Fittings

Chicago Fittings Corporation is an industry leader manufacturing specialty joining methods for a number of markets, including natural gas and propane. Our most successful product would be the X-Riser®, which is defined as the only natural gas and propane riser to contain absolutely no underground joints.


Chicago Fittings Corporation was established in 1930 by the Kelly family, which was Kelco Industries. The company was originally located in Broadview, IL and later moved to Woodstock, IL. In 2004, Joe Tarquini bought Chicago Fittings and led the company until 2018. Under his leadership, the facility was moved to Belvidere, IL and then, in 2015, was moved to its current location in Beloit, WI. In 2017, A.Y. McDonald Industries acquired Chicago Fittings. In 2021, Diane Thomas was named President of the company. Due to growing demand over the years, the Beloit location was added onto in 2022 and completed in 2023, thus doubling the size of the facility.

Chicago Fittings has been and continues to be recognized more prevalently for the ability to provide “Engineered Solutions”.  While certified to ISO 9001:2015, we are committed to a quality management system though the framework of continuous improvement. From prototyping and testing to validation and production, Chicago Fittings will be there to assist you through every facet of your project!


Let us be your partner:

We ask the right questions and by taking time upfront to ask those right questions, we zero in on what will make even tough projects successful.

Contact Us