America’s Fastest Transformer Supplier
Meet Maddox
Maddox Industrial Transformer is the leading U.S. supplier of new and remanufactured transformers, including padmount, substation, and dry-type units.
Powering American Industry with Reliable Electrical Equipment, Fast & Hassle-Free.
100,000+ transformers shipped
400+ employees
800+ 5-star reviews
Maddox designs, supplies, and warranties padmount, substation, polemount, and dry-type transformers to ANSI, NEMA, DOE, and IEEE standards as applicable.
Maddox also supplies pad-mounted and metal-enclosed switchgear to provide safe switching and overcurrent protection for your electrical systems.
The Transformer “Fast Pass” for Commercial & Industrial Projects
Unlike other OEMs who prioritize the needs of electric utilities, Maddox supports commercial and industrial projects with faster lead times and more responsive support.
Trusted by America’s Best Companies
We support American infrastructure by supplying transformers to businesses of every size: from family-owned dry cleaners and restaurants to Fortune 100 companies, global data center hyperscalers, and everyone in between.
7 Time Honoree
Maddox has been recognized as one of America’s fastest growing privately-owned companies by the Inc. 5000 list for seven consecutive years.
Powering Projects Fast in Every Industry
Data Centers
Manufacturers
Renewables
Distributors
Bitcoin Mining
Electrical Contractors
Real Estate Developers
Why Customers Choose Maddox
We deliver transformers in less time, and with less headaches, while still supplying transformers to NEMA, ANSI, DOE, and IEEE standards as applicable.
Maddox vs. Other OEMs
The difference between us and other transformer manufacturers is our focus on speed and an easy buying experience.
Transformers Delivered Fast Nationwide
With seven transformer facilities across America and customers in all 50 states, Maddox offers the scale of a national manufacturer and the service of a local supplier.
Transformers Built by Industry Veterans
Founded by a team with decades of experience in transformers dating back to the 1980s, Maddox has a strong heritage of supplying new and remanufacturing reliable transformers.
Leadership Team
With over 95 years of combined industry experience between them, our leaders understand the challenges facing America’s electrical infrastructure.
Decades of Transformer Experience
Founded in 2015 by a group of transformer industry veterans, and headquartered in Battle Ground, WA, Maddox has achieved exponential growth thanks to our amazing team delivering a reliable product.
Join the Team
We’re building a culture where every employee can thrive, find purpose, and work alongside a close-knit team. The result has been a one-of-a-kind employee experience.
Power Your Next Project Faster
Tired of long lead times and unresponsive customer service? Get your next transformer fast and hassle-free from Maddox's large portfolio of products.
Your Guide to All Things Transformers
Maddox is committed to serving electrical professionals from every field by sharing up-to-date industry news and high-quality technical information.
Ultimate Guide to Transformers
New to the industry? Learn everything you need to know about transformers here.
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Frequently Asked Questions
What are the main products Maddox Transformer sells?
Maddox sells reliable low and medium voltage transformers that include dry-type , padmount , and substation units .
Which industries does Maddox Transformer specialize in serving?
Maddox is focused on serving commercial and industrial customers such as contractors, renewables, data centers, and end users.
Where is Maddox Transformer located?
Maddox is headquartered in Battle Ground, WA , with additional facilities throughout the United States in South Carolina , Ohio , Washington , Idaho , Texas and Tennessee.
Is Maddox Transformer currently hiring?
As one of America’s fastest-growing privately owned companies we’re always hiring. Visit our careers page for current openings.
Does Maddox Transformer sell both new and remanufactured transformers?
Yes, Maddox sells both new and remanufactured transformers, including new stock and made-to-order units.
What are the primary services Maddox Transformer offers?
Maddox repairs , rewinds , rents , and purchases padmount , dry-type , and substation transformers.
How long has Maddox Transformers been in business?
Maddox was founded in 2015 by a team with experience leading transformer companies since the 1970s.
Is Maddox a good place to work?
According to Glassdoor , 100% of employees would recommend Maddox Transformer as a good place to work.
How do I place an order with Maddox Transformer?
Submit a request for quote form and a transformer expert will contact you within 30 minutes to provide price and lead time.
Are Maddox padmount transformers BABA compliant?
Many Maddox products are made in the USA, but not all. Our goal is to provide the majority of our products domestically, while leveraging global supply as needed. We specify “American Made” on our quotes when applicable. Maddox can also provide padmounts to meet “Build America, Buy America” requirements. Ask for BABA in your quote and learn more about BABA here .