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Herold & Mielenz, Inc.


Herold & Mielenz, Inc.


Herold & Mielenz, Inc.


Sales. Service. Expertise.

Since 1945, Herold & Mielenz has set the industry standard as an innovative electric motor and power transmission sales and service center. Now a 3rd generation family-owned business with the 4th generation working hard in the shop, we work closely with a wide variety of original equipment manufacturers, industrial plants, and processing companies; developing solutions for their drive and motor problems and servicing their equipment needs. To us, electric motors and all the components that support their function, are tradition. The Mielenz family are direct descendants of Thomas Davenport, the man who invented the first electric motor in 1881. Great great great Grandpa Davenport was the first man to ever get a Patent on a commercial electric motor. We have always held that lineage and implantation of our industry skills, to be sacred. In today’s market, we apply our technical expertise along with state of the art equipment and processes to master a variety of industry tasks.

  • Electric Motor Repairs
  • Electric Motor Rewinds
  • Electric Motor Sales
  • Ag. Industrial Pump Repairs
  • Ag. Industrial Pump Sales
  • Electric Motor Controls
  • Variable Frequency Drives
  • Dynamic Balancing
  • And more…

Herold & Mielenz has been a member of EASA, The Electro-Mechanical Authority for 50 years. Herold & Mielenz is registered with EASA as an authorized warranty repair shop for most electric motor manufacturers. When it comes to electric motors and their components, we have been an industry leader in Northern California since our founding, for four generations! We invite you to come experience our level of expertise for yourself.

For more information concerning our sales or services, or to speak with one of our experts, please call Herold & Mielenz at 916-422-7493.


Want to get to know the story behind Herold & Mielenz? Take some time to visit our "About Us" page and get to know the rich history behind our sales and service expertise.

our services

From Stator Rewinds to electric motor repairs and complex industrial controls, Herold & Mielenz offers some of the most comprehensive and specialized services in the industry. Get in contact with us to learn how we can help!

Sales department

Over-the-counter parts sales, personalized field sales - Herold & Mielenz has the experience to offer you the very best inventory for your operations at affordable prices.


After Hours Emergency Phone


Monday – Friday: 7 AM – 4 PM

Accepted Payment

MasterCard, Visa, & AMEX

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