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About Herold & Mielenz, Inc.

At Herold & Mielenz, Inc., we didn’t invent the first electric motor, but our great-great-great-grandfather did! The members of the Mielenz Family are direct descendants of Thomas Davenport, who is credited with inventing the first commercially successful electric motor in 1834. A blacksmith in Brandon, Vermont, Davenport began experimenting with electromagnets in 1831 and, by 1934, he constructed the first electric motor. Operated by battery, his first motor was used to propel a small car around a circular track, the first recorded instance of an electric railroad.

black and white photo of H & M Electric Co

Proud Craftsmen Since 1945

We have worked closely with OEMs, industrial plants, and processing companies, solving their drive and motor problems and servicing their equipment needs. Each employee at Herold and Mielenz, Inc., is a qualified technician, educated in his or her field, experienced through years of work in the industry, and dedicated to making each project a product of true craftsmanship.

At Herold and Mielenz, Inc., we’re proud of our enduring role as an industry leader, and we intend to uphold our standing as a strong force in the field by remaining true to the principles under which we’ve operated for the past 78 years: understanding our customers’ needs, paying close attention to every detail of every project, and standing firmly behind our work.

photograph of electric motor

Herold & Mielenz, INC is family owned and operated. It has been since it was founded by William Frederick Mielenz in 1945. He ran the business for decades. After growing up working in the shop with his father, William Theodore Mielenz ran the business even more decades. It was he who introduced the VPI system and built the bigger shop.

Like his father before him, William Benjamin Mielenz grew up in the shop. He too learned the even newer technology of Vibration Analysis that is practiced today. Like the generations before him, Will brings the most current state of the art practices to Herold & Mielenz, INC. But it’s not over yet! The current owners’ sons, William Herold Mielenz & Wesley James Mielenz, like their father and grandfathers before them, are in the shop learning the family business for their future tenure as owners.

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