Your single source for custom machining & fabrication.

About JT Cullen Company

J. T. Cullen Company, Inc. has a proud history of providing exceptional customer service with a personal touch. Highest quality, best pricing and continuous development of new fabrication processes symbolize our vision to help our customers succeed.

Our employees have the expertise and knowledge earned by over 60 years of delivering outstanding customer satisfaction. Aided by our state-of-the-art equipment and immediate material resources, we are able to complete large projects in the time it takes others to plan and locate their suppliers.

Being a family oriented company, J.T. Cullen Company, Inc. is committed to the well being of its workforce by providing competitive benefits. J.T. Cullen Company, Inc. is a 100% employee owned company which offers an employer only contribution retirement plan, and to pair with it, our employees have the opportunity to contribute to their own retirement with an optional 401K to ensure a sound future. J.T. Cullen Company, Inc. provides their employees many different ways to become involved both within the company, and also in the community.

Top: Frank Johnson overseeing the fabrication of the Geodesic Dome in 1963. Bottom: Geodesic Dome today at Lake Point Towers in Chicago, IL.

Our Company History


In 1957 Frank Johnson bought JT Cullen Co., Inc. from John Cullen. Cullen had operated a boiler works in the building located in Northwest Illinois. After Johnson bought the building, he expanded the product line to include Custom Metal Fabrication. Since that time, the building has been modernized and upgraded several times but the business continued to outgrow the facility. In the early to mid 1980’s the business expanded into two Iowa facilities, a fabrication shop in Clinton and a machine shop in Camanche.

Roughly ten years later, the still growing JT Cullen Co., Inc. merged all three companies under one roof. We built a new 122,000 square foot, state-of-the-art facility in Fulton, Illinois. At that time numerous equipment improvements were made including new cranes, ironworkers, a paint booth and structural blasting equipment.

The future of JT Cullen Co., Inc. has never looked brighter. With the experience of our employees, commitment to quality with our ISO 9001 certification and constant capital improvements we will continue to strive to be the best. If you have any questions about JT Cullen Co., Inc. please do not hesitate to contact us!

Community Involvement


At J.T. Cullen, Company, Inc., we know the importance of being socially responsible and we take pride in encouraging our employees to participate in social activities to give back to our surrounding areas. Throughout our local communities we participate in and donate to different nonprofit organizations as well as participate in community activities and volunteer our time. Whether a team of employees are participating in a local 5K or collecting for a local cause, we are devoted to ensure that J.T. Cullen and its employees are assets to the local and surrounding communities!