Welcome to Leo J. Mahoney Company online where we have the electrical components experts trust.
Mahoney Controls is a leading electrical component wholesaler supplying engineers, panel builders, and manufacturers with the parts they need — fast, reliably, and backed by 60+ years of expertise.
Mahoney Controls is a leading electrical component wholesaler supplying engineers, panel builders, and manufacturers with the parts they need — fast, reliably, and backed by 60+ years of expertise.
Shop by Category
Thousands of in-stock components across three core product families — ready to ship when you need them.
AUTOMATION & CONTROL
Automation and control components are the devices that allow industrial machines and electrical systems to operate safely, efficiently, and predictably.
Browse categoryCIRCUIT PROTECTION
Circuit protection devices safeguard electrical systems from overloads, short circuits, voltage spikes, and other electrical faults that can damage equipment or create safety hazards.
Browse categoryPANEL ACCESSORIES
Panel accessories are the hardware components that complete and support industrial control panel installations.
Browse categoryFeatured Brands
Traditional electrical installations are complex, requiring intricate torque processes and specialized tools. Zero Torque (Push-In) products simplify installation, offering efficiency and ease, making them a game-changer in the industry.
Get a Free Quote in Three Steps
Every product in our catalog can be quoted at no cost. No minimum order. No obligation. Just add what you need and we’ll respond fast.
More Than a Wholesaler
We’ve been solving electrical problems since before most distributors existed. Here’s what that means for your project.
A Legacy Built on Electrical Excellence
Leo John Mahoney Sr. serves as Chief Electrical Inspector for Toledo, Ohio, and helps write the first National Electrical Code (NEC) — the foundation of electrical safety in America.
The company is established as an electrical component representative, bringing manufacturer expertise directly to engineers and panel builders across the region.
Teresa Mahoney Fontana leads the company as President. Mahoney Controls has grown into the largest independent stocking wholesaler of Magnum/Connectron products and holds master distributor status with multiple leading manufacturers.
The Leo J. Mahoney Company isn’t just a distributor — it’s a business built on a century of electrical expertise, personal relationships, and a genuine commitment to helping customers solve hard problems.
Our heritage gives us a unique perspective. We don’t just stock parts — we understand how they’re applied, what makes a panel build succeed, and where engineers tend to get stuck. That knowledge, passed down through three generations of the Mahoney family, is what sets us apart from the big-box distributors.
We started as a representative outfit and grew into a stocking wholesaler because our customers asked us to. That growth has always been driven by one thing: finding better ways to serve the people who build, protect, and control electrical systems for a living.
Today, we’re proud to be certified by the Women’s Business Enterprise National Council (WBENC) — a reflection of the leadership that has guided this company into its next chapter.
Built for the Industries That Build Everything Else
From automotive plants to clean energy facilities, our components power the systems that keep America running.
