TSI Global Companies is a St. Charles-based contracting company that delivers cost-effective low-voltage structured cabling solutions that enables your organization to operate at peak performance.  Network cabling is the central nervous system to your business, which is why we listen closely to your organization’s needs in order to provide turnkey solutions built to scale that prepares you for the present and the future.  

We have positioned ourselves as experts in the industry since we started infrastructure cabling 32 years ago when TSI was born.  We have since that time grown our passion, team (Over 500 years combined experience, 6 RCDDs), and capabilities to include the entire scope of your cabling needs.