Who owns Keio?
Keio is owned by Keio Corporation (Japan, TSE: 9008).[1]
This ownership is reported in official statements but has not yet been matched to a regulatory filing.
Evidence: 会社概要 (Keio Corporation global site). Last checked .
Key facts
- Current owner
- Keio Corporation reported
- Owner HQ
- 🇯🇵 Japan, Tama
- Origin
- 🇯🇵 Japan, Tama
- Category
- Travel & transport › Railways
- Parent ticker
- TSE: 9008
- Last verified
- · 1 sources
About Keio
Keio is the railway brand of Keio Corporation, whose profile describes a network of the Keio Line from Shinjuku and the Inokashira Line from Shibuya covering 84.7 km in western Tokyo and northern Kanagawa. Its site sells Mt. Takao discount tickets and one-day passes.
Ownership timeline of Keio
Where Keio sits in Keio
Controlling ownership as of . Brands grouped under the entity that owns them; large groups are collapsed.
Open the full Keio ownership tree →
Other brands in railways, and who owns them
The 91 brands in railways on Brandtree belong to 68 owners. The largest is DfT Operator, with 9.
| Brand | Owner | Owner based in |
|---|---|---|
| c2c | DfT Operator | 🇬🇧 United Kingdom |
| Avanti West Coast | FirstGroup | 🇬🇧 United Kingdom |
| Eurostar | SNCF | 🇫🇷 France |
| CPKC | CPKC | 🇨🇦 Canada |
| Linha 4 do Metrô de São Paulo | Motiva | 🇧🇷 Brazil |
| Hellenic Train | FS Italiane | 🇮🇹 Italy |
| Transtar | FTAI Infrastructure | 🇺🇸 United States |
| KAI Commuter | KAI | 🇮🇩 Indonesia |
About the owner: Keio
Keio is a publicly listed company headquartered in Tama, Japan. Brandtree records 1 brand under its control, and it is listed as TSE: 9008.
Keio Corporation says on its Japanese company profile that it was established on 1 June 1948, with its head office at Sekido 1-9-1, Tama, Tokyo and its registered office in Shinjuku, and that its business is railways and the leasing and sale of land and buildings. Its railway business is the Keio Line from Shinjuku and the Inokashira Line from Shibuya, together 84.7 km with 69 stations. A May 2025 press release gives its securities code as 9008 on the TSE Prime market.
🇯🇵 Keio and other Japanese brands
Brandtree records a controlling owner for 437 brands that began in Japan. 21 of them (5%) are now controlled by a company headquartered in another country; Keio is not one of them.
- "K" Line — K Line 🇯🇵
- AIRDO — RegionalPlus Wings 🇯🇵
- AIT — AIT 🇯🇵
- ANA — ANA Holdings 🇯🇵
- AZ-COM Maruwa — AZ-COM Maruwa 🇯🇵
- Amakusa Airlines — Amakusa Airlines 🇯🇵
Frequently asked questions
Who is the parent company of Keio?
The parent company of Keio is Keio Corporation, a publicly listed company headquartered in Japan.
Is Keio Japanese?
Yes. Keio originated in Japan and its owner, Keio Corporation, is also headquartered in Japan.
Is Keio still owned by Keio Corporation?
Yes. As of 5 October 2026, Keio is still owned by Keio Corporation. The ownership record was last checked against primary sources on that date.
Sources (1) & corrections
Last verified . Every ownership fact above is backed by one of these primary documents. Numbers in brackets in the text refer to this list.
- [1] 会社概要 (Keio Corporation global site) — Keio Corporation, Official document; retrieved 5 October 2026.
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