About Us

Company Outline

Company Name SPERA NEXUS, Inc.
Company Address 8-2, Nihonbashi Honcho 4-Chome, Chuo-ku, Tokyo 103-0023, Japan
Foundation July, 2020 * Established as a preparation company and started business in June, 2021
Capital 310 Million Yen
Number of Employees 211 (as of December 1st, 2023) ※Including temporary employees, etc.
Business Manufacturing and selling of pharmaceutical raw materials and chemical products
Main Banks Mizuho Bank, Ltd., MUFG Bank, Ltd., Sumitomo Mitsui Banking Corporation. etc.
Group companies Astena Holdings Co., Ltd., SPERA PHARMA, Inc., IWAKI SEIYAKU CO., LTD.,JITSUBO CO,LTD.
President & CEO
Eisuke Futagami
Zenya Arai
Toshiyuki Hosokawa
Audit & Supervisory Board Member
Toshimitsu Isobe


1914 Founded as a pharmaceutical wholesaler, “Iwaki Ichitaro Shoten” at Hongoku-cho 4-chome Started with wholesale supply for pharmacies, as well as wholesale supply of pharmaceutical materials around this time
1923 The entire store burnt down during the Great Kanto Earthquake
1931 A new three-story wooden-mortar store building was built Established Iwaki Seiyakujo (later IWAKI SEIYAKU Co., Ltd.) as a limited partnership company Started the production of drugs and pharmaceutical materials
1933 Established Kamata Plant
1941 Incorporated as “Iwaki Shoten Co., Ltd.”
1948 Reorganized the company into Iwaki Seiyaku Co., Ltd. Capital: 1 million yen President: Ichitaro Iwaki
1950 Started handling imported pharmaceutical materials
1960 A five-story building was completed
1962 Kentaro Iwaki was appointed as President Kentaro Iwaki was appointed as President
1963 The company name was changed to “IWAKI & CO., LTD.” Listed on the second section of the Tokyo Stock Exchange
1971 Established Shizuoka Plant in Daito-cho, Ogasa-gun, Shizuoka
1977 Completed a wastewater treatment facility at the Shizuoka Plant (using activated sludge)
1981 Celebrated the 50th anniversary of its foundation
1987 Completed the K.I. Memorial Building at the Shizuoka Plant
1989 The head office building of IWAKI & CO., LTD. was completed Registered DMF with US FDA Acquired approx. 60,000 m2 of land adjacent to Shizuoka Plant in the second expansion project Completed the F7 factory at Shizuoka Plant
1990 Certified as compliant with FDA inspection
1994 Kentaro Iwaki was appointed as Chairman, and Osamu Iwaki as President
1998 Completed the GMP-compliant factory (F8) for APIs at Shizuoka Plant
2005 Included into the first section of the Tokyo Stock Exchange Completed a GMP-compliant small-lot production building at Shizuoka Plant
2007 Expanded the F8 factory at Shizuoka Plant
2013 Expanded production lines in the F5 manufacturing building at Shizuoka Plant
2014 Celebrated the 100th anniversary of its foundation
2017 Osamu Iwaki was appointed as Chairman, and Keitaro Iwaki as President
2019 “North Cube,” the laboratory building for highly active APIs, was completed and started operation
2020 SPERA PHARMA Inc. joined the group

*Our company name consists of “Spera,” signifying “hope,” and “Nexus,” referring to “chain/bond.”

2021 The group transferred to a holding company structure, and SPERA NEXUS, Inc. started operation of business split from the former IWAKI & CO., LTD. and IWAKI SEIYAKU CO., LTD. (It was registered as a preparation company in July 2020.)
* The history of IWAKI & CO., LTD. and IWAKI SEIYAKU CO., LTD. mainly describes the business that was transferred to SPERA NEXUS, Inc.

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