Leadership & History

Our History

Lone Star Industrial was founded in 1977 by brothers Ralph and Bob Navar. Their mechanical experience extends to their childhood days when they installed a refrigeration system and motor on an old fashioned Flyer wagon. They were able to foresee the need for testing equipment, including fixtures, in the wire harness industry. When changes occurred within the industry, Lone Star Industrial (LSI) began making Spring Test Probes to fit specialized fixtures. LSI has continued to adapt to the needs of the wiring harness manufacturing industry with innovative and redefined products.




Ralph Navar

Founder & First President

Ralph Navar, Jr, one of the original founders and President of Lone Star Industrial has been creating and engineering since his childhood. He has engineered a variety of projects to help out his family business. However, with a fascination with aviation as a teenager, he began to build full-sized airplanes. Ralph was inducted into the El Paso Aviation Association Hall of Fame for his work on a variety of projects and devices to modify aircraft to allow individuals with disabilities to pilot their own aircraft.

In 2014, Ralph decided to dedicate more time to his two loves, his wife Carolyne and aviation.

A letter from our Owners

Dear Customer,

Since 1977, Lone Star Industrial has provided products that are used throughout the world in all types of electronic assembly operations.

Beginning with its original founders, Ralph and Bob Navar, Lone Star Industrial has been involved with resolving, problems faced by our customers. The individualized care shown by them continues with this new generation of owners.

We continue to dedicate our efforts to produce high quality products which will comply with the most demanding requirements found in today’s marketplace.

The spring test probes and switch test probes seen in this catalog will meet your needs for quality and delivery at a competitive cost. We are proud to carry on the tradition of products made in the USA.

We have enjoyed working with our established customers and look forward to a long prosperous relationship working with you.

Mark Atchley & Joann Navar