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  • HOME
  • ABOUT/CONTACT
  • ARMATURE
  • STATOR/COIL
  • MOTOR
  • NOISE AND VIBRATION
  • RESISTANCE WIRE BONDING
  • AUTOMATION
  • DATA COLLECTION


​How It All Started

ESW was founded by Al Naegeli in the basement of his home in 1972. 

A neighbor once mentioned that the motor industry needed a better way to test armatures. Inspired by this, Al began working on developing a test system specifically for armatures. He collaborated closely with a local customer and successfully delivered the system later that year. The results were so impressive that word quickly spread, and ESW was born.
As demand grew, ESW soon rented space in a local manufacturing building. By 1976, the company had expanded enough to build its own facility, bringing both manufacturing and office spaces under one roof. Within a few short years, ESW's rapid growth led to the need for an addition to accommodate its increasing operations
Over the years, ESW has established itself as a leader in the industry, continually innovating and advancing testing technologies. We revolutionized armature testing by introducing electronic scanning, eliminating the need for operators or machines to rotate the armatures. ESW also pioneered the introduction of weld testing and masterless testing to the market, making significant strides in testing accuracy and efficiency.
In the early 1980s, ESW introduced the first fully computerized armature tester, which utilized an RCA computer system. By 1992, we transitioned the test platform to a PC-based computer system, marking another major milestone. During this period, we made a bold move to standardize the platform for both armature and stator testers, ensuring that customers could share spare parts and leverage troubleshooting capabilities across both systems.
In 2000, ESW introduced its first Windows-based tester, incorporating proven hardware while ensuring compatibility with future upgrades for aging systems. This shift ensured long-term support and scalability for our customers.
After 30 years of leadership, Al Naegeli retired in 2002, passing the ownership, management, and direction of the company to Tim Naegeli and Linda Naegeli. Recognizing the need for diversification, Tim and Linda focused on expanding beyond stator and armature testing. They began developing new motor test systems, noise and vibration systems, and wire bonding systems, driving the company into new markets.
Today, ESW continues to advance its technology in close collaboration with our customers. We manufacture both standard and highly customized test systems and remain committed to exploring industry needs, extending our expertise beyond the motor industry to meet diverse testing and automation challenges.

Our Owners

Linda Naegeli (President of ESW)

Linda Naegeli

PRESIDENT


"Thank you for your interest in our Company.  We value our relationships with our customers and work with you to ensure your tester delivers the results  to make your company successful."
Tim Naegeli (Vice President of ESW)

Tim Naegeli

VICE PRESIDENT​


"Welcome to ESW! Our promise and commitment to you is that we will work side by side to develop a testing and automation solution to meet your unique needs and requirements. Please call or email me anytime to discuss your specific application."

    Contact Us Here

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Electronic Systems of Wisconsin Logo
Electronic Systems of Wisconsin
  5020 21st Street Racine, WI. 53406 USA
+1 262-554-1211
[email protected]

www.eswtesters.com
Electronic Systems of Wisconsin
  • HOME
  • ABOUT/CONTACT
  • ARMATURE
  • STATOR/COIL
  • MOTOR
  • NOISE AND VIBRATION
  • RESISTANCE WIRE BONDING
  • AUTOMATION
  • DATA COLLECTION