Founded in 1994, Railroad Controls Limited is one of the growing railroad signal construction and material integration companies in North America. Based in Benbrook, Texas, its core capabilities include complete railroad design, construction, and signal communication services, like automatic interlocking, defect detector systems, centralized traffic control, wayside signal systems and highway rail grade warning systems. Railroad Controls Limited has established contractual relationships with more than fifty railroads, including Class 1 and commuter rail systems. The firm s services include systems and cost assessment, construction rebuild and new build and signal wiring and materials.