In order to meet emission targets for 2050 in Europe transport needs to be executed more efficiently. A promising way to make transport more efficient is synchromodal transport. When the service provider has more flexibility to arrange transport, the utilization and use of intermodal transport, such as rail, can be increased and emissions per unit transported are reduced. Synchromodal transport requires a large change in way of working for shippers and logistics service providers that may seem insurmountable. In this article a maturity model is developed for synchromodal transport that breaks this large change down into several stages that companies go through when developing synchromodal transport. In a case study, executed for several companies situated in Northwestern Europe the maturity model is applied in practice to identify enablers and inhibitors of synchromodal transport.