The Robbins Company is one of the leading developers and manufacturer of advanced, underground construction machinery. Based in Kent, Wash., the company offers an extensive range of underground excavation equipment. It offers large diameter tunnel boring machines (TBMs) that have the ability to excavate every geological type from hard rocks to sands and gravel. The Robbins Company also provides tunnel boring and small boring machines, conveyors and cutters. It has four primary manufacturing facilities, seven international sales and service locations and representatives throughout the world.