For more than 30 years, Rail Management Services (RMS) has grown into one of the largest suppliers of intermodal ramp services in the United States. Today, we employ more than 2,400 people working at more than 50 locations in 18 states. Headquartered in Seattle, Washington, RMS is the parent company of several business units, including: Pacific Rail Services, Rail Terminal Services, Terminal Switching Services, Pacific Trailer Repair Services and PRS Auto.