TSI Global Companies is a licensed and insured electrical contractor providing commercial electrical installations throughout the United States.  Our trained labor force is a part of the IBEW Local 1 and equipped with workmanship and professionalism to handle any challenge presented in commercial buildings, warehouses, and parking lots.  Located in St. Charles, Missouri, TSI can handle any electrical project from new construction, remodeling & retrofitting, expansion, and full-service tenant improvements. 

We deliver cost-effective electric and lighting solutions for various healthcare, education, corporate, hospitality, stadiums & arenas, performing arts and house of worship industries with 24-hour emergency repair to commercial clients.  Give us a call today to discuss how TSI can install any type of high-efficiency electrical system required for your organization. 


  • 24/7 Emergency Service
  • 3-Phase Wiring 
  • Arc Fault Circuit Breakers 
  • Automatic Transfer Switches 
  • Ballast Replacements 
  • Commercial Generator Installation 
  • Commercial Surge Protection 
  • Electrical Code
  • Electrical Panels
  • Emergency Power System
  • Energy Efficient Lighting 
  • Equipment/Appliance Hookups 
  • Exterior/Outdoor Lighting 
  • Fire Alarms & Security 
  • GFCI Outlets 
  • Indoor/Outdoor Security Lighting 
  • LED Lighting 
  • Maintenance, Repair, and Replacement Work
  • New Construction Design * Build
  • Parking Lot Lighting 
  • Phone & Computer Wiring
  • Plugs & Switches 
  • Power
  • Power Backup Systems
  • Power Distribution Panels
  • Recess Can Lighting 
  • Replacing Circuit Breakers 
  • Survey 
  • Tenant Build Outs
  • Troubleshooting & Repair
  • Warehouse Lighting 
  • Car Dealerships 
  • Corporate 
  • Grocery Stores 
  • Healthcare 
  • Hospitality 
  • Restaurant 
  • Retail 
  • Schools & Universities 

Electric Service Panel Upgrade

St. Louis electrical contractor capable of handling your company's electrical services, new electric meters and panel upgrades

Exterior/ Security Lighting

Shed some light on your business even when the sun goes down

Parking Lot Lighitng

Let TSI give you the comfort of having your parking lot appropriately lit when the sun goes down.

Remodels & New Construction Build Outs

TSI is capable of giving your company the power and connectivity it needs to thrive

Interior Lighting

General ambient lighting. Accent Lighitng. Task Lighting. Equip your business with lighting that is efficient today

Emergency Electrical Contractor

Power failure can happen anytime. That's why TSI provides 24 hour emergency service.

Fire Alarms & Security Systems

Building effective fire alarm and security systems is the only way to proactively protect your organization

LED Warehouse Lighitng

There are various ways to light your warehouse to maximize energy efficiency and productivity

Commercial Surge Protection

Equipping your business with surge protection helps proactively protect your business in case of electrical emergencies.



Julie Kauffmann
Julie Kauffmann
Operations Manager at U.S. Title
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As Operations Manager at U.S. Title - just wanted to share my thoughts of TSI for electrician services. WOW! Excellent experiences. Fixed our issues. Timely responses. Friendly, professional and dependable. Highly recommend.
Caitlin Valadez
Caitlin Valadez
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I called TSI and they came out the same day to upgrade my panel!! Dane was wonderful to help me on the phone as well. Would definitely recommend TSI to anyone. TSI made my week so much easier!
Cathy Brandt
Cathy Brandt
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I have used Brandon before and since his merger with TSI. The friendly and knowledgeable service I used to get with Braco is still as good as it ever was. I won’t use anyone else.
Kathy Shelton
Kathy Shelton
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What a wonderful experience. I was not able to give my full attention to the instillation of my generator. TSI took care of everything, freeing me to complete other tasks for a new home owner. The gentlemen were polite and extremely knowledgeable. Thank you for taking out the hassle of hooking up the generator.
June Wood
June Wood
Operations Director at Woody's Pool & Spa
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I called TSI to help replace our garage door opener and upgrade our electrical panel. They had somebody over in just a few hours. They were respectful and I couldn't be happier and now I can open my garage from anywhere on my phone. If you need any electrical work done, call TSI