Shamrock Trading Corporation is the parent company for a family of brands in transportation services, finance and technology. Our brands include Ryan Transportation, RTS Financial, RTS International, RTS Carrier Services and ProTransport.Headquartered in Overland Park, KS with 10 offices across the U.S., Shamrock has been recognized both nationally and locally by multiple publications including Newsweek, Kansas City Business Journal and Crain’s Chicago Business.