Established in 1946, JEM Tool & Manufacturing Co., Inc. is a family run machining business specializing in general machining, milling, turning and fabrication. With over 65 years in the business, we have gained the experience and knowledge to meet your specific machining needs.  Every job that we take on is important to us, from the simplest to the most complex, from prototyping to production. Customer satisfaction is our goal and we strive to accomplish that 100% of the time.


In 1946 John, Ed and Matt established and incorporated JEM Tool & Manufacturing Company. John brought his machining experience, Ed a customer base and Matt offered his business experience to bring this new manufacturing company to life. Before long, Elmer Cassidy was hired as a machinist to help out with production. Sometime around 1958, Elmer was a permanent and essential part of JEM Tool & Manufacturing Co., Inc.; He oversaw production out in the shop as well as ran the business portion with help from his wife Frances. Elmer and Frances purchased JEM Tool & Manufacturing Co., Inc. sometime in the early to mid-seventies.

In 1978 JEM Tool & Manufacturing Co., Inc. found a new home in its current location here at 797 Industrial Drive, Bensenville, IL. It has been owned by members of the Cassidy family ever since.

I have been overly impressed with Steve and his team at Jem Tool & Manufacturing Co, this is a team that takes the time to work with you and really get to know your needs. Jem Tool & Manufacturing Co have gone above and beyond to help with engineering & manufacturing, and continually hit it on the head every time. From my team to yours thank you!

Dailey Mechanical