Company lists · Data refreshed September 2026

Top 15 Rare disease drug manufacturers based in Japan

RevenueBase identified 35 company matches for rare disease drug manufacturers associated with Japan as of September 2026 and tracks 5,053 professional contacts across them, including 1,119 with verified work emails. Tokyo is the largest hub.

This list covers company matches for rare disease drug manufacturers associated with Japan, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 17, 2026 How this list was built
35Companies
5,053Contacts tracked
1,119Verified emails
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The 15 largest rare disease drug manufacturers based in Japan

Ranked by team size
Top 15 of 35 company matches for rare disease drug manufacturers based in Japan, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchTokyo, JapanHQ recorded Sep 17, 202610001+1,491 contacts →

Exact match

“Daiichi Sankyo is an innovative global healthcare company contributing to the sustainable development of society that discovers, develops, and delivers new standards of care to…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2Exact matchBunkyo-ku, JapanHQ recorded Sep 17, 20261,001-5,000494 contacts →

Exact match

“Eisai’s Corporate Concept is “to give first thought to patients and people in the daily living domain, and to increase the benefits that health care provides.” Under this Concept…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3Exact matchOsaka, JapanHQ recorded Sep 17, 20261,001-5,000418 contacts →

Exact match

“Philosophy The purpose of the Shionogi Group's corporate activities is, as expressed in the opening of its Company Policy, to "supply the best possible medicine to protect the…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4Exact matchOsaka, JapanHQ recorded Sep 17, 20261,001-5,000339 contacts →

Exact match

“Ono Pharmaceutical Co, Ltd.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5Exact match大阪市中央区, JapanHQ recorded Sep 17, 20261,001-5,000184 contacts →

Exact match

“This is the official company page of Sumitomo Pharma Co, Ltd.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6Exact matchKadoma, JapanHQ recorded Sep 17, 20261,001-5,000122 contacts →

Exact match

“Founded in Osaka in 1951, for over 70 years we have been dedicated to research, develop, manufacture, and distribute generic medicines to fulfill our Ikigai: Contribute to…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7Exact match新宿区, JapanHQ recorded Sep 17, 20261,001-5,00047 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8Exact match中央区, JapanHQ recorded Sep 17, 2026201-50035 contacts →

Exact match

“Nobelpharma Co, LTD, Japan”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9Exact match江東区, JapanHQ recorded Sep 17, 202611-5015 contacts →

Exact match

“is a pharmaceuticals company based out of, Japan.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10Exact matchMinato-ku, JapanHQ recorded Sep 17, 202611-5012 contacts →

Exact match

“Welcome to Axcelead, Inc, Japan’s premier integrated drug discovery solution provider.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11Exact match港区虎ノ門, JapanHQ recorded Sep 17, 202611-5010 contacts →

Exact match

“Sobi Sobi Japan20206”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12Exact matchYokohama, JapanHQ recorded Sep 17, 20261-108 contacts →

Exact match

“At SFG SCIENCES, we’re passionate about R&D for new innovative medicines.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13Exact matchNagoya-shi, JapanHQ recorded Sep 17, 202611-506 contacts →

Exact match

“Our company is a biotech venture established under the founder's philosophy of “Innovative New Drugs to the World from Japan.””

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14Exact matchChuo, JapanHQ recorded Sep 17, 20261-104 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15Exact matchFujisawa, JapanHQ recorded Sep 17, 2026n/a2 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

Showing 15 of 35 rare disease drug manufacturers based in Japan

See the full list, filter by size, metro and specialty, and access 1,119 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Rare disease drug manufacturers based in Japan at a glance

As of Sep 17, 2026
22.1%Verified-email coverage
144.4Average contacts per company
51-200Median size (employees)
17.1%Largest-city concentration · Tokyo
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
3
11-50
12
51-200
2
201-500
3
501-1,000
1
1,001-5,000
11
5,001-10,000
1
10001+
1

Email recency for this list is measured worldwide rather than for Japan, so it is reported there. Company counts and contact totals on this page are exact for Japan, over 35 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Japan whose business descriptions match “rare disease drug manufacturers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 1,119 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 17, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “rare disease drug manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many rare disease drug manufacturers are there based in Japan?

RevenueBase identified 35 company matches for rare disease drug manufacturers associated with Japan as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Daiichi Sankyo Japan tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most rare disease drug manufacturers?

Tokyo leads with 6 company records, followed by Osaka (2) and Yokohama (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,119 professional contacts with verified work emails tracked across these 35 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.