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.

Congratulations to Megan and Logan for officially completing their LEAN training!
07/20/2026

Congratulations to Megan and Logan for officially completing their LEAN training!




Big shoutout to Chris Mackey on reaching his 5-year milestone at Johnson Electric Coil Co.!If you know Chris, you know h...
07/14/2026

Big shoutout to Chris Mackey on reaching his 5-year milestone at Johnson Electric Coil Co.!

If you know Chris, you know he’s a vital part of our production line as a Heavy Hand Winder. He’s the kind of teammate who always steps up when it matters most.

When asked to describe Johnson Electric Coil in three words, Chris chose Caring, Loyal, and Honest—and honestly, we think those words describe Chris perfectly, too.

When he’s not mastering the winding machines, you can usually find him perfecting his swing on the golf course or whipping up a delicious meal.

Thank you for five years of loyalty and hard work.




07/02/2026
It's not every day that the factory floor gets a dose of this much cuteness. Sitting right alongside some electrical tra...
06/22/2026

It's not every day that the factory floor gets a dose of this much cuteness. Sitting right alongside some electrical transformers, they brought their best smiles to check out where the magic happens. (Shoutout to the pink teddy bear keeping them company on the pallet!)
It is a wonderful reminder that family businesses are built on hard work—and a little bit of fun! Thanks for the big smiles, Aria and Noah!

Please join us as we celebrate Brianna Schroeders’ 5-year work anniversary with us! Brianna brings versatility, dedicati...
06/16/2026

Please join us as we celebrate Brianna Schroeders’ 5-year work anniversary with us!

Brianna brings versatility, dedication, and a fantastic attitude to work every single day.

Brianna, your commitment to excellence, customer devotion, and hardworking attitude inspire us all. Thank you for 5 years of hard work, continuous learning, and always being ready to lend a helping hand. We are so lucky to have you on the team, and we can't wait to see all that you continue to achieve!




Please join us in giving a round of applause to Megan Mantor as she celebrates an incredible 5-Year Anniversary with Joh...
06/08/2026

Please join us in giving a round of applause to Megan Mantor as she celebrates an incredible 5-Year Anniversary with Johnson Electric Coil!

Megan has been a vital part of our production team, dedicating her skills as a Winder/Builder. But her journey doesn't stop there—thanks to her hard work, leadership, and attention to detail, she is soon stepping into the role as our 5S Coordinator!

Thank you, Megan, for five years of dedication, excellence, and continuous improvement. We are so proud to have you on the team and cannot wait to see you thrive in your new 5S Coordinator role!




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!




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.

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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