Prior to March 2017, Hibiya Line trains were 18 m long 8-car formations, with a mixture of three or five doors per side.
Tokyo Metro Tobu Railway TRTA/Tokyo Metro Tobu Railway Tokyu Corporation Tōzai Line trains are 20-meter-long 10-car formations, with four doors per side and longitudinal seating.
Kita-Ayase Branch service trains run in three-car formations.
Tokyo Metro Odakyu Electric Railway JR East TRTA/Tokyo Metro Odakyu JNR/JR East Yūrakuchō and Fukutoshin Line trains are 20-meter-long 10-car (8-car for some Fukutoshin Line trains) formations, with four doors per side and longitudinal seating.
Tokyo Metro Tokyu Corporation Tobu Railway Tokyu Corporation Tobu Railway Namboku Line trains are 20-meter-long 6-car/8-car formations, with four doors per side.