When it comes to running a business, having dependable electrical systems isn’t optional—it’s essential. From powering your technology and communications infrastructure to keeping your spaces secure, safe, and well-lit, low-voltage electrical work is the backbone of every successful commercial facility. That’s where TSI Global comes in.
As a licensed and insured contractor for low-voltage installations, TSI Global has been serving commercial clients across the United States for decades. Headquartered in St. Charles, Missouri, we combine deep technical expertise with a hands-on, client-first approach. Our workforce is proudly part of IBEW Local 1, bringing professionalism, precision, and a strong work ethic to every project we take on.
Whether you’re managing new construction, remodeling an existing space, or need fast, expert support to resolve an issue, TSI has the experience and resources to deliver. From corporate offices and healthcare facilities to warehouses, retail centers, and parking structures, we’ve seen—and wired—it all.
Built for Today, Ready for the Future
Low-voltage systems are more than just wires behind the walls. They connect the systems that power your business—from your data networks and lighting to security, communications, and automation. When building a new facility, it’s critical to install scalable and future-ready infrastructure that can evolve with your needs.
At TSI, we design and install complete low-voltage systems, including structured cabling, LED lighting, phone and data lines, access control, and industrial-grade breaker panels. Every project begins with detailed planning to ensure your systems are installed properly and positioned for growth. If you’re expanding or renovating, our retrofit solutions help modernize your infrastructure without starting from scratch.
We work efficiently, always with the goal of minimizing downtime and disruption while delivering long-term value.
Reliable Contractor for Low-Voltage When You Need It Most
Electrical issues and outages don’t always happen during regular business hours. That’s why TSI offers 24/7 emergency service. When you need immediate support, our team is on call and ready to respond quickly—whether it’s a complete outage, faulty cabling, or equipment failure.
But emergency response is just one part of what we do. Our comprehensive electrical testing services help prevent issues before they impact your business. We provide field testing, continuity checks, and preventative maintenance to ensure your systems are running at full capacity. Our experts also support uninterruptible power supply (UPS) systems—critical for maintaining uptime for sensitive technology and equipment.
Protect Your Systems with Smart Solutions
Businesses in the Midwest know just how unpredictable the weather can be. From summer storms to winter power surges, your electrical infrastructure needs to withstand the elements. TSI provides advanced surge protection solutions designed to shield your technology, equipment, and electrical panels from sudden voltage spikes and outages. These systems reduce the risk of damage, data loss, and costly downtime.
Lighting That Works as Hard as You Do
Whether it’s interior lighting for employee productivity or exterior lighting for safety and security, proper illumination plays a major role in how your business looks and operates. TSI offers lighting solutions tailored to your facility’s unique needs. We install high-efficiency LED lighting systems in offices, warehouses, parking lots, and walkways—ensuring every corner is bright, secure, and energy-efficient.
Our team can help design a lighting plan that not only meets your needs today but continues to deliver savings and performance over the long term.
A Full-Service Low Voltage Partner
What sets TSI apart from the average contractor for low-voltage systems is our full-service approach. We’re not just installers—we’re partners. From initial planning and design to installation, maintenance, and emergency response, we remain by your side every step of the way.
No matter where your business is located, our nationwide team ensures consistent quality, technical excellence, and responsive service across every job site.
Let’s Power Your Next Project
Whether you’re starting from scratch, expanding your operations, or simply upgrading your current infrastructure, TSI Global is ready to help. Let us bring safe, efficient, and future-ready low voltage solutions to your business. Contact us today to learn more about how we can support your next project—and become your trusted contractor for low-voltage systems.