customer reviews

Don’t just listen to us. Take it from our customers and their 600+ 5 Star Reviews.

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Trusted by America’s Biggest Companies

Maddox transformers are installed in all 50 United States, Canada, and South America. We’ve provided thousands of transformers to the companies that power American industry.

What Our Customers Say

Wondering if you can trust Maddox with your next project? 
Listen to what some of our customers have to say.

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600+ 5 Star Reviews

Having the largest transformer inventory in the USA doesn’t help anyone without the team behind it. At Maddox we pick up the phone when you call and ensure you get the transformer you need when you need it.

Great service, quick delivery.
Daniel H.
Great service and products. Gast shipping for large items.
Clay R.
Great to do business with. Very helpful, very fast service. I had a crazy issue with an intermittent power company issue. I thought was a transformer issue as I'd never worked with Maddox before. They picked it up tested it with no issue. Returned quickly. I just ordered for a second time, again very prompt and amazing to work with. Only place I'll work with in the future.
Chris H.
Great to deal with, super tech support, fast shipping in a well padded carton (important for a 55# metal box). Not my first order, Maddox always comes through. Highly recommend.
Barry M.
Great service! Received product earlier than expected! Thank you
Jim S.
Great service, great price, great product, fast delivery - what more could you ask for!
Les M.
Great service, fast deliver, transformer works great.
Yves J.
Great service quick delivery.
Brian A.
Great service and quick shipping.
Rick F.
Great service.
Luis C.

Experience the Maddox Difference

Fill out the form and a member of our team will get back to you as soon as possible. Our average response time during business hours is 30 minutes.

A padmount transformer outside a data center filled with fr3 fluid