About

GTI is a leading designer and manufacturer of custom engineered magnetic components that include power transformers, inductors, reactors and chokes.

The company offers a wide range of products such as Isolation, Auto, K-Rated, Encapsulated, High Efficiency, Multipulse, Zig-Zag, Scott-T, & DOE2016 compliant transformer designs. Single phase designs up to 500kVA,and three phase up to 750kVA. Inductors and chokes up to 3000A.

GTI products can be found in the most demanding applications, serving markets such as motor drive, elevator, power quality, energy, oil and gas markets, to name a few.

Founded in 1968, GTI is an ISO 9001:2015 certified magnetics manufacturer based in Grand Haven, MI.