We manage the global OEM supply chain for distribution and power transformers — first-line components, embedded quality control, and complete energized units delivered to American utility, industrial and data center sites. Our strength is the supply chain itself: a diversified, vetted supplier base, a documented quality assurance program at every stage, and strict Build America, Buy America Act (BABA) compliance across both overseas and domestic sourcing.
Single-phase pole mounted distribution transformers for overhead utility lines.
View line →Three-phase pad mounted transformers sized for commercial and data center loads.
View line →Single-phase pad mounted transformers for underground residential distribution.
View line →A transformer is not one thing made in one place. Marathon buys first-line materials from the same mills and fabricators that supply the world's largest OEMs, holds them to a documented quality assurance program at every stage, and then builds, fills, tests and ships the finished unit for American service — so the unit that arrives at your site is an American made transformer with a global supply chain behind it.
"American made" is a claim a utility has to be able to defend on a federally funded project. Marathon keeps sourcing, content and documentation records to the requirements of the Build America, Buy America Act (BABA), on both the overseas and the domestic side of the chain — so the paperwork supports the label rather than the other way around.
Direct relationships with the same overseas mills and component fabricators that supply the world's largest transformer OEMs — silicon steel, copper windings, bushings, tap changers and tank fabrication. Multiple qualified sources per component, so no single mill can stall a build.
Marathon engineers operate inside partner factories — performing in-process inspection, factory acceptance testing, and final witness testing before any unit is cleared for shipment to the United States.
Under the DaysReady™ Program the essential major parts — cores, coils, tanks and accessories — are already manufactured and held ready for nearly every model we build. When your order lands we assemble, test and ship in days instead of opening a production run from zero.
A global supply chain does not mean a loose one. Marathon holds sourcing, documentation and content records to the requirements of the Build America, Buy America Act (BABA) — so federally funded utility and infrastructure work stays compliant on both the overseas and domestic sides of the chain.
Major components pre-built for nearly every model, assembled and tested to your spec in days.
View program →We pick up your faulty pole mount units, deliver brand-new ones back, and pay you a flat rate.
View program →Rating, voltage class, quantity and required energization — that's all we need to match it against DaysReady™ inventory and come back with a date and a price.