About Control Transformer

Leaders in High-Quality
Custom Magnetics

At Control Transformer, Inc. (CTI), a Park Ohio company, we design and manufacture custom magnetic products that exceed expectations.

Established in 1953, our company was founded around a simple guiding principle: only build quality products.

This commitment to excellence has fueled our growth from a local company to a global provider of custom-engineered magnetic transformers, reactors, inductors and chokes — and it remains at the heart of everything we do.

When you partner with us, you can expect:

Commitment to quality craftsmanship and attention to detail.
A strong focus on precision, durability and reliability.
Custom magnetic solutions tailored to your exact specifications.

Extremely low defect rates of less than 1%, with virtually no failures.
Rugged products that work in challenging environments and last longer than their required lifecycles.
A trusted partner dedicated to powering your success.

Only Quality Products

When we design and build products, every detail is best-in-class.

Guaranteed Reliability

Products have a low 1% failure rate and typically outlive their required lifecycle.

Collaborative Partnership

We build solutions together, ensuring products surpass your expectations.

Dedicated Technical Experts

With over 14,000 unique magnetic specifications designed, we’ve earned a reputation for delivering reliable, high-performance magnetics. However, our greatest asset is our people.

We ensure your success because of the dedicated individuals behind each product — engineers and craftsmen with decades of technical experience across a wide range of industries. Our long-tenured experts work closely with all customers from ideation to delivery and care deeply about the outcome of each project.

Most importantly, we take pride and responsibility in ensuring that every product we build is delivered not only to spec but surpasses your expectations.

UL Recognized Insulation Systems

ISO Compliant

Adherence to ANSI Standards

Collaborative & Efficient Service

We believe in delivering solutions that not only meet your technical requirements but also build long-lasting trust. Our collaborative approach combines expert design, seamless communication and industry-leading efficiency, all from our central hub in Ohio.

At CTI, we don’t just provide products. We build solutions together, ensuring your business thrives with power systems tailored to your unique demands.

14000

Individual magnetic specifications built to date

Low failure rate of magnetics built

170

Combined years of experience

A ParkOhio Company

Control Transformer is a member of ParkOhio, an industrial supply chain logistics and diversified manufacturing firm.

ParkOhio operates approximately 130 facilities for manufacturing, distribution, and service throughout North America, South America, Europe, and Asia. As a ParkOhio brand, Control Transformer benefits from being part of a diversified, publicly traded company that employs more than 6,400+ globally and generates revenues exceeding $1.7 billion.

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