- Pomona Electronics is a leading, global supplier of connection accessories for electronic test instruments. Designed for a wide range of test and design applications, Pomona products have earned a reputation for quality, dependability and reliability. To meet the rapidly expanding needs of the market, the company is continually developing new products. Today, Pomona has the broadest line of connection and test accessories in the world, for applications ranging from engineering research to test labs to field service and plant maintenance. The Pomona line of test accessories is recommended by leading manufacturers of test equipment and instrumentation. In fact, these manufacturers look to Pomona as the experts in connection and test accessory development.