About

About UTLX PROX, a Marmon Rail Company Together, UTLX PROX are North America’s leading designer, builder and full-service lessor of railroad tank cars and other specialized railcars. Founded as Union Tank Car Company, UTLX PROX own a fleet of approximately 112,000 railcars and serve customers in the chemical, petrochemical, energy and agricultural/food industries. UTLX PROX manufactures tank cars in the United States, and UTLX PROX perform railcar maintenance services at more than 100 locations across North America. UTLX PROX are part of Marmon Holdings, Inc., a Berkshire Hathaway company.