Private company

Seibu Railway

Logo: ButuCC, Public domain, via Wikimedia Commons3

Japanese railway company

Seibu Railway Company, Ltd. (西武鉄道株式会社, Seibu Tetsudō Kabushiki-gaisha) is a conglomerate based in Tokorozawa, Saitama, Japan, with principal business areas in railways, tourism, and real estate. Seibu Railway's operations are concentrated in northwest Tokyo and Saitama Prefecture; the name "Seibu" is an abbreviation of "west Musashi", referring to the historic name for this area. It and its holding company hold shares of numerous bus, hotel and tourism operations nationwide.2 It is part of Seibu Holdings.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

Dec 21, 1894Founded1
Seibu Group buildings Kusunoki, Tokorozawa, Saitama pref, Japan 2007-03-29
Photo: Tokoro ten, CC BY-SA 3.0, via Wikimedia Commons5

Seibu Railway Company, Ltd. (西武鉄道株式会社, Seibu Tetsudō Kabushiki-gaisha) is a conglomerate based in Tokorozawa, Saitama, Japan, with principal business areas in railways, tourism, and real estate. Seibu Railway's operations are concentrated in northwest Tokyo and Saitama Prefecture; the name "Seibu" is an abbreviation of "west Musashi", referring to the historic name for this area. It and its holding company hold shares of numerous bus, hotel and tourism operations nationwide.2

Corporate structure

Seibu Railway is part of a group headed by Seibu Holdings. 12 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

  • Seibu Holdings 東京都 豊島区, Japan
    • Seibu Railway Ikebukuro
      • Izuhakone Railway Subsidiary · Mishima
      • Ohmi Railway Subsidiary · Hikone
      • Television Saitama Subsidiary · Saitama Prefecture
      • DyDo Drinco Ice Arena Owned · Higashi-Fushimi, Japan
      • Emio Owned · Japan
      • Seibu Chichibu Line Owned · Saitama Prefecture, Japan
      • Seibu Dome Owned · Kami-Yamaguchi, Japan
      • Seibu Ikebukuro Line Owned · Saitama Prefecture, Japan
      • Seibu Railway network Owned · Saitama Prefecture, Japan
      • Seibu Sayama Line Owned · Saitama Prefecture, Japan
      • Seibu Seibu-en Line Owned · Tokyo, Japan
      • Seibu Tamagawa Line Owned · Tokyo, Japan
      • Seibu Tamako Line Owned · Tokyo, Japan
      • Seibu Toshima Line Owned · Nerima, Japan
      • Seibu Yurakucho Line Owned · Nerima, Japan
      • Seibu Ōmiya Line Owned · Japan
    • Prince Hotels Subsidiary · DaiyaGate Ikebukuro
      • Prince Resorts Hawaii Subsidiary
    • Seibu Real Estate Subsidiary · DaiyaGate Ikebukuro, Japan
    • Saitama Seibu Lions Subsidiary · 100% · Japan

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries, stakes and holdings from Wikidata (CC0). Each entity in the chart links to its source.

What it owns

What Seibu Railway reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Stakes and holdings (Wikidata)

  • DyDo Drinco Ice Arena
  • Emio
  • Izuhakone Railway
  • Ohmi Railway
  • Saitama Seibu Lions
  • Seibu Chichibu Line
  • Seibu Dome
  • Seibu Ikebukuro Line
  • Seibu Railway network
  • Seibu Sayama Line
  • Seibu Seibu-en Line
  • Seibu Tamagawa Line
  • Seibu Tamako Line
  • Seibu Toshima Line
  • Seibu Yurakucho Line
  • Seibu Ōmiya Line
  • Television Saitama

Things Wikidata records the company as owning, with the share when stated.1

The story

"Seibu Railway" was originally the name of a tram service between Shinjuku and Ogikubo, which was transferred to the Tokyo metropolitan government in 1951 and eventually closed in 1962. The Seibu Railway was acquired in 1921 by the Kawagoe Railway, which had operated a train service between Kokubunji and Kawagoe since 1894; the merged company kept the "Seibu" name and expanded its main line to Takadanobaba, forming what is now known as the Seibu Shinjuku Line.

The current Seibu Railway is a product of a 1945 merger between the former Seibu Railway and the Musashino Railway, which was founded in 1912 to operate what is now known as the Seibu Ikebukuro Line. The merger was largely orchestrated by Yasujirō Tsutsumi, a real estate developer who opened the Tamako Railway (now the Seibu Tamako Line) in 1928, became a major shareholder in the Musashino Railway and merged the two in 1940.

In 1944, the Tokyo metropolitan government, under the administration of Shigeo Ōdachi, hired the Seibu Railway and the Musashino Railway to provide a coordinated service to transport night soil from central Tokyo to outlying disposal areas. At the time, night soil was generally transported by truck to Tokyo Bay and disposed of by dumping there, but the progress of World War II led to gasoline and personnel shortages which made this system unsustainable. The sewage service continued through the American occupation until 1951. As a result of this service cooperation, Seibu Railway merged with Musashino Railway to form the current Seibu Railway, effective in September 1945. Tokyu Group president Keita Goto had an intense personal rivalry with Tsutsumi, and unsuccessfully attempted to block both Tsutsumi's takeover of the Musashino Railway and its merger with the Seibu Railway.

The former Seibu network based around Shinjuku and the former Musashino network based around Ikebukuro remain operationally separated today. In 1986, Seibu Railway moved its headquarters from the Ikebukuro area to Tokorozawa, Saitama, where the two main Seibu lines intersect.

Tsutsumi became the controlling shareholder in Seibu Railway following the merger through his holding company Kokudo Corporation. After gaining control of Seibu, Kokudo developed the Prince Hotels chain, acquired the baseball team now known as the Saitama Seibu Lions, in addition to continuing its core real estate business throughout the Tokyo area. Seibu Railway had its initial public offering on the Tokyo Stock Exchange in 1949 but remained under the control of Tsutsumi through Kokudo.

Station numbering was introduced on all Seibu Railway lines during fiscal 2012.

Delisting and takeover struggle

Tsutsumi registered Seibu Railway shares owned by Kokudo in the names of various affiliated individuals, often without their permission, so that the true ownership of the company was not readily apparent. Following the death of Tsutsumi in 1964, his third son Yoshiaki Tsutsumi inherited control of Kokudo and continued the practice of falsifying shareholder records. His holdings in Kokudo and Seibu led to his being deemed the "world's richest man" by Forbes magazine for four consecutive years from 1987 to 1990, with estimated net worth of $15–20 billion during the height of the Japanese asset bubble. He was arrested on securities fraud charges in March 2005.

On December 21, 2005, Seibu Railway was delisted from the Tokyo Stock Exchange. A reorganization of the group, completed in February 2006, created Seibu Holdings to act as a holding company for both the railway and Prince Hotels. Cerberus Capital Management, an American investment fund, became the largest shareholder in Seibu Holdings with a 29.9% share of the new company.[1]

Read the full text

In late 2012 and early 2013, Cerberus proposed that Seibu Railway abolish five non-core lines, along with other restructuring measures throughout the Seibu Holdings group, but management refused to implement these changes. Cerberus then executed a tender offer to increase its stake to 35% as of June 2013, giving Cerberus the power to veto shareholder resolutions. Cerberus had aimed to raise its stake to 44%, bringing it closer to an outright majority, but Seibu management engaged in a massive campaign to thwart the tender offer, including advertising within Seibu trains to passengers who owned stock. The East Japan Railway Company and several financial institutions also planned a support scheme to keep Cerberus from acquiring control of Seibu, but it was ultimately not implemented due to a lack of potential financial benefit for the investors. At the June 2013 shareholder meeting, several proposals by Cerberus were voted down, including the election of outside directors and the abolition of non-core lines.

As of June 2013, Yoshiaki Tsutsumi remains a major investor in Seibu Holdings through his 36% investment in NW Corporation, the second-largest shareholder in the company with a share of around 15%. Tsutsumi refused to respond to the Cerberus tender offer at the urging of Seibu management.

From Wikipedia’s article on Seibu Railway, shared under CC BY-SA 4.0.4

Products and brands

As of June 2017, Seibu's routes total 176.6 km (109.7 mi). They fall into two separate groups. Tokorozawa Station is the crossing point of Ikebukuro Line and Shinjuku Line.

Seibu Railway is well known for its bright yellow colored trains. However, more recent trains have a blue colored line on unpainted stainless steel or aluminium bodies.

Ikebukuro Line Group

The Ikebukuro Line group includes the Ikebukuro Line and its branches.

Shinjuku Line Group

The Shinjuku Line group includes the Shinjuku Line and its branches, as well as the Tamagawa Line, which is not a branch of the Shinjuku Line but had been owned by the Shinjuku Line's operator before its merger with the Ikebukuro Line operator.

Read the full text

Until May 31, 2017, this list included the Seibu Ahina Line. Prior to the formal closure, the 3.2 km (2.0 mi) freight line between Minami-Ōtsuka Station and Ahina Station had suspended operation since 1963.

From Wikipedia’s article on Seibu Railway, shared under CC BY-SA 4.0.4

Subsidiaries and ownership

Parent company

Owners

Subsidiaries

Also owns

  • DyDo Drinco Ice Arena
  • Emio
  • Saitama Seibu Lions
  • Seibu Chichibu Line
  • Seibu Dome
  • Seibu Ikebukuro Line
  • Seibu Railway network
  • Seibu Sayama Line
  • Seibu Seibu-en Line
  • Seibu Tamagawa Line
  • Seibu Tamako Line
  • Seibu Toshima Line
  • Seibu Yurakucho Line
  • Seibu Ōmiya Line
  • Television Saitama

From Wikidata.1

Acquisitions

  1. Succeeded Musashino Railway1

Timeline

  1. Dec 21, 1894Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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