For over 40 years, Dunn’s Valve Testers have been successfully designing, building, and selling valve testing equipment to customers all over the world. Their valve testers have been distributed to more than 15 countries. A diverse customer base includes chemical and nuclear plants, utility companies, oil and gas firms, the U.S. military, and other government entities. The firm has only a handful of competitors, and only one is a U.S.-based company. This advantage provides additional revenue streams as the company is able to overhaul and service other brands.

The current owner purchased the business in 2016 and has modernized the design and manufacturing, keeping the integrity of the original processes intact, and has expanded the company to new heights. The firm enjoys an enviable reputation and ready references from ASME engineers and repeat blue chip clients such as NASA, Emerson and Entergy. In fact, the company is the sole provider of this product to the U.S. Military. In 2020 the company built a flagship test machine for NASA and eight for the U.S. Navy.