keisei

Keisei Electric Railway Co., Ltd., commonly referred to as Keisei, is a private railway operator in the Tokyo metropolitan area of Japan. It primarily serves Tokyo and Chiba Prefecture and is part of the Keisei Group. The company runs a network of passenger rail lines that connects central Tokyo with the Chiba region and the Narita area, including the Keisei Main Line and the Narita Sky Access line. It also operates the Skyliner, a high-speed limited-express service that links central Tokyo stations with Narita International Airport. Keisei's services integrate with other rail networks in the greater Tokyo area, supporting commuter travel and airport access.

Keisei traces its origins to 1909, when it was established as a private railway operator. Over the decades, it expanded its rail network, modernized rolling stock, and developed airport-access services to accommodate growing demand for travel to Narita Airport. In addition to its core rail business, Keisei has developed and integrated related transportation and service operations to support its network and customer base.

The Keisei Group encompasses a range of transportation, real estate, hospitality, and services businesses centered on the railway network and its airport access operations. While primarily known for rail services, the group structures its activities to provide comprehensive access, urban development, and service offerings in the Tokyo and Chiba corridor. Keisei remains a major private operator in the region, contributing to commuter travel and international airport connectivity.