customer reviews

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

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.

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.

Fantastic transformer for converting 208 3 ph to 480 vac

Paul W.

Fantastic once I hit enter on the computer it showed up promptly....Excellent!

Blake S.

Extremely quick turnaround!!!!! Arrived 2-days after order. Very easy to deal with and helpful with information.... HIGHLY RECOMMENDED.

Toby A.

Extraordinary customer service. These guys really came through for me in a jam when no other company could help me. They were responsive, helpful and made sure my purchase was perfectly executed. Thanks !!!!

David M.

extremely helpful and fast shipping

Todd R.

Excellent, will buy from you again def. Transformer even had lugs installed for wire terminations. Delivery was 8-1200 and showed up at 730 am. Thanks.

Mark G.

Excellent transaction. Good communication and fast delivery as promised. Thank you!

Antonio G.

Excellent service. I needed the transformer delivered to my shop in Wilmington MA in two days and Maddox delivered. Thanks to Shawn Brown and the entire Maddox team.

Steven M.

Excellent product and fast shipping. Thank you for the great product

Scott S.

Excellent Service.

Alessio M.

Experience the Maddox Difference

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A padmount transformer outside a data center filled with fr3 fluid