Johnson Electric Coil Company

Johnson Electric Coil Company Johnson Electric Coil Company is a manufacturer of custom transformers and inductors.

We use lean manufacturing principles to deliver our customers the highest quality products built to their exact specifications. At Johnson Electric Coil Company, we use lean manufacturing techniques to create custom inductors, custom electrical transformers, 3 phase transformers, 3 phase autotransformers, single phase transformers, custom isolation transformers, toroidal transformers and more! We

work closely with every customer so that they receive the products that they need, built to their precise specifications. When you’re looking for top-notch custom transformer manufacturers look no further than us. We’re the electrical transformer manufacturers that have been providing many industries custom solutions for the past 83 years. We pride ourselves on providing our clients with complete line services for their specific custom magnetics that include helping them get the product through safety agencies. By working with us, you are guaranteed complete design, engineering and manufacturing solutions that will fill your needs with the most efficient and highest quality custom inductors and transformers. We have some of the broadest manufacturing and design capabilities in the industry. We will fully support your safety agency requirements with our expertise in foreign and domestic agency requirements. We also work closely with our customers to customize packaging, scheduling, billing, and shipping.

Please join us in congratulating our Engineering Manager, Tyler Weber, on his 15-year anniversary with the company!Tyler...
06/04/2026

Please join us in congratulating our Engineering Manager, Tyler Weber, on his 15-year anniversary with the company!

Tyler is the definition of a quiet force. He is always calm and collected, and he has been an amazing asset to our team. While he might not be the loudest person in the room, his brilliant mind and steady leadership speak volumes through the incredible work he delivers every single day.

Tyler, thank you for 15 years of dedication, brilliant problem-solving, and for being such a wonderful part of the Johnson Electric family. We couldn't do it without you!




We are incredibly proud to recognize Jonathan Desjarlais on his 5-Year Anniversary with Johnson Electric Coil!As a Heavy...
06/01/2026

We are incredibly proud to recognize Jonathan Desjarlais on his 5-Year Anniversary with Johnson Electric Coil!

As a Heavy Hand Winder, Jonathan brings incredible skill and dedication to our team every single day. True to his favorite part of the job—helping others learn theirs—he is always ready to lend a hand.

Jonathan describes his 5 years here as Rewarding, Loyal, and
Inspiring, and we couldn't agree more. Thank you for half a decade of excellence!




05/21/2026
The "American-Made Reliability" Proud, trustworthy, and technical.Summer is coming, and in the world of power, heat is t...
04/30/2026

The "American-Made Reliability"

Proud, trustworthy, and technical.

Summer is coming, and in the world of power, heat is the ultimate test.

At Johnson Electric Coil Co., we’ve been building high-performance dry-type isolation transformers in Antigo, Wisconsin since 1934. Why does "dry-type" matter when the mercury rises?

• Efficient Air Cooling: No oil to degrade or leak under thermal stress.
• Fire Safety: Ideal for indoor industrial environments where summer ventilation is key.
• Custom Engineering: We design systems to withstand high surrounding temperatures, ensuring your temperature rise remains within safe limits.

Don’t let a summer surge catch you off guard. Trust the American-made quality that’s kept the industry moving for over 90 years.

Johnson Electric Coil Company serves an ever growing and diverse list of industries and markets.
04/15/2026

Johnson Electric Coil Company serves an ever growing and diverse list of industries and markets.




Join us in celebrating Amber Staszak’s 5th Anniversary at Johnson Electric Coil Co!Amber has been the friendly voice of ...
03/24/2026

Join us in celebrating Amber Staszak’s 5th Anniversary at Johnson Electric Coil Co!

Amber has been the friendly voice of our Customer Service. Whether she’s navigating complex orders or ensuring our clients get exactly what they need, she does it all with professionalism and a smile.

Thank you for your hard work and dedication.




Johnson Electric Coil Company provides complete custom transformer and inductor design, engineering, manufacturing, prod...
03/20/2026

Johnson Electric Coil Company provides complete custom transformer and inductor design, engineering, manufacturing, product compliance and support services, all in Antigo, Wisconsin. Our custom design and manufacturing capabilities are some of the broadest in the industry; our products are the finest, most efficient, and fairly priced. Our goal is to provide a level of quality and service that enables our customers to be leaders in their market.




Address

821 Watson Street
Antigo, WI
54409

Opening Hours

Monday 6:30am - 4:30pm
Tuesday 6:30am - 4:30pm
Wednesday 6:30am - 4:30pm
Thursday 6:30am - 4:30pm
Friday 6:30am - 4:30pm

Telephone

(800) 826-9741

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