The popular commuter rail line that brings 20,000 riders to 28 points between San Francisco and San Jose, with extensions to Gilroy, has been sharing its headquarters with SamTrans since the 1990s. SamTrans, San Mateo County’s bus system, is moving in 2025 to a new office space near the Millbrae Caltrain station. It has invited its roommate to co-locate, but Caltrain is shopping around first.
