Quester Tangent is a leading North American supplier of train electronics and software solutions for the passenger rail and locomotive industries. We are a Canadian company with a global perspective and a rich history of leading-edge technology development. We provide a complete portfolio of modular and tailored solutions for rail vehicle manufacturers and transit authorities: TrainWise, flexible on-board train and locomotive monitoring and control electronics and passenger information system, FleetWise, innovative wayside software and TestWise, comprehensive test equipment products.