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Private company

Taisho Pharmaceutical Co.

Logo: 大正製薬, Public domain, via Wikimedia Commons3

Japanese multinational pharmaceutical company

Taisho Pharmaceutical Co., Ltd. (大正製薬株式会社, Taishō Seiyaku Kabushiki-gaisha), commonly known as Taisho, is a Japanese multinational pharmaceutical company based in Tokyo.2 It was founded by Kinujirō Ishii.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

May 5, 1928Founded1
  • Industrypharmaceutical industry1
  • HeadquartersTakada1
  • Websitewww.taisho.co.jp
  • Legal formjoint-stock company1

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Taisho Pharmaceutical Co. Head Office
Photo: Abasaa, Public domain, via Wikimedia Commons4

Taisho Pharmaceutical Co., Ltd. (大正製薬株式会社, Taishō Seiyaku Kabushiki-gaisha), commonly known as Taisho, is a Japanese multinational pharmaceutical company based in Tokyo.2

Corporate structure

Taisho Pharmaceutical Co. is part of a group headed by Taisho Pharmaceutical. 3 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

Built from subsidiaries, stakes and holdings from Wikidata (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

The story

Founded by Kinujirō Ishii on May 5, 1928.1

Leadership

Who has led Taisho Pharmaceutical Co., and when. Pick a name to see everywhere that person has worked.

Subsidiaries and ownership

Parent company

From Wikidata.1

Timeline

  1. May 5, 1928Founded Founded1

Sources

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

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