Thoughtful Solutions in Transmission and Distribution

For 75 years, Lindsey Systems has provided thoughtful solutions to the electric power industry. Our pioneering products are known around the world for reliability and performance that exceeds expectations.

Today, Lindsey System’s offers a variety of advanced solutions, including:

  • Hybrid systems combining specialty sensors and analytic web-based software. The SMARTLINE platform provide utilities advanced dynamic line ratings along with the ability to forecast transmission line capacity, reducing congestion in the power grid. SMARTLINE-TAMPER provides the ability to monitor transmission tower structures against physical intrusion. These SMARTLINE solutions employ a cyber-secure Software as a Service (SaaS) model.
  • Emergency Restoration Systems increase the resilience of transmission grids following catastrophic weather events.
  • Lindsey Sensors are high accuracy distribution class current and voltage sensors integral to many utility’s “Smart Grid” implementations.
  • Lindsey’s Fully Tested Hardware for transmission applications is recognized as the most reliable and innovative in the industry.

A lot has changed in the 75 years since Lindsey Manufacturing was established. But a lot has not. Listening to customers, providing thoughtful solutions, and developing safe and reliable state-of-the-art equipment will be the hallmark of Lindsey Systems as it was the hallmark of Lindsey Manufacturing Company.

Lindsey is ISO 9001:2015, ISO 14001:2015 and CSA W47.2 Certified.

Made in the USA



Our History

Mr. L. E. Lindsey PE, founded Lindsey Manufacturing Company in 1947 working out of his garage in Pasadena, California with little more than his drafting board. At the time, the grids of electric utilities were rapidly expanding and the linemen needed labor-saving equipment that was safe and reliable, so L.E. set out to meet this new need with a few innovative products. Under his guidance, Lindsey developed and introduced several industry firsts, gaining a well­-deserved reputation for high quality, exceptional customer service and technical innovation. Listening to the needs of our customers and developing innovative solutions continue to the be the hallmark of Lindsey today.



Dr. Keith E. Lindsey, current president of Lindsey and IEEE Fellow, continues to build upon the foundation laid by his father. After receiving his Ph.D. in mechanical engineering from Stanford University and helping to lead the technical expansion of the industry, Dr. Lindsey has become recognized worldwide as an expert in transmission and distribution. Dr. Lindsey has authored many technical publications and participates in several national and international professional associations, including IEEE and CIGRE, applying his knowledge to set policy and direction for the electric utility industry worldwide.

Lindsey is located in Azusa, California, near Los Angeles
P.O.Box 877
760 N. Georgia Ave.
Azusa, CA 91702 USA
Tel. 1(626) 969 3471
Fax. 1(626) 969 3177