Plug into 100+ years of industrial electrical know-how.

From trolleys to terminations:
Our timeline of growth.

See how we grew from a small, one-location business to serving the entire Mid-South.
  • 1920: Founded Tristate Armature
  • 1928: Launched our industrial electrical contracting services
  • 1966: Began offering industrial electrical equipment distribution services
  • 1997: Started providing automation and drive systems services
  • 2025: Unveiled our new company name, Voltrio
The one thing that hasn’t changed over the years is our promise to you. When it comes to industrial electric:
  • Find the right parts fast.
  • Keep your equipment up and running.
  • Get electrical work that won’t quit.
Partner with a team that continues to learn, grow, prioritize your needs, and work with a humble and confident mindset. That’s the Voltrio way.
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Sharing the
Voltrio love

“Voltrio is good at keeping technical expertise in house, which I find very valuable with an automation distributor. You’re running into things that you’re not sure about. Bob Lawler came up and helped us out and even provided a little bit of training on some of the modules that we use. That’s probably their biggest strength.”
Rodney Atkins,
Nucor Steel

Our electrical contracting customers

Many companies across a spectrum of industries have benefited from Voltrio’s services. Yours could, too.

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