Company lists · Data refreshed November 2026

Top 15 Api contract manufacturers based in Japan

RevenueBase identified 76 company matches for api contract manufacturers associated with Japan as of November 2026 and tracks 4,391 professional contacts across them, including 1,953 with verified work emails. Xian is the largest hub.

This list covers company matches for api contract 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 November 6, 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 Nov 6, 2026 How this list was built
76Companies
4,391Contacts tracked
1,953Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 15 largest api contract manufacturers based in Japan

Ranked by team size
Top 15 of 76 company matches for api contract manufacturers based in Japan, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 match北区, JapanHQ recorded Nov 6, 20261,001-5,000117 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact match中央区, JapanHQ recorded Nov 6, 20261,001-5,00073 contacts →

Exact match

“PPD2015CROPPDPPD1985202112Thermo Fisher Scientific Inc.“Thermo Fisher”4735 Awards -Top Pharmaceutical Outsourcing Services Provider in APAC 2023 (Awarded by Pharma Tech…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchTokyo, JapanHQ recorded Nov 6, 202651-20064 contacts →

Exact match

“Leading Asian business partner in global Speciality Chemicals industry offering the complete range of services from ingredient manufacture, product R&D, and safety and efficacy…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchKawagoe, JapanHQ recorded Nov 6, 20261,001-5,00044 contacts →

Exact match

“Japan’s premier contract manufacturing organization.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact match中央区, JapanHQ recorded Nov 6, 2026201-50027 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact match港区, JapanHQ recorded Nov 6, 202611-5023 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchNakaniikawa-gun, JapanHQ recorded Nov 6, 2026201-50023 contacts →

Exact match

“Fuji Chemical Industries is a pharmaceutical company headquartered in Toyama, Japan, founded in 1946 and proudly celebrating its 80th anniversary this year.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact match江東区, JapanHQ recorded Nov 6, 202611-5018 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchOsaka, JapanHQ recorded Nov 6, 2026201-50017 contacts →

Exact match

“SPERA PHARMA (SPERA) was spun out from Takeda Pharmaceuticals and became a wholly owned subsidiary of Bushu Pharmaceuticals on July 1, 2017 in Osaka, Japan.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact match富山市, JapanHQ recorded Nov 6, 2026201-50016 contacts →

Exact match

“While the out-sourcings at each level of intermediates, APIs and preparations are aggressively and strategically deployed globally by pharmaceutical companies, we are committed to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact match渋谷区, JapanHQ recorded Nov 6, 20261,001-5,00015 contacts →

Exact match

“NOF CORPORATION is a leading chemical manufacturer pursues multi-faceted business development, focusing on Life/Healthcare, Environment/Energy, and Electronics/IT.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMinato-ku, JapanHQ recorded Nov 6, 202611-5014 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchShinjuku-ku, JapanHQ recorded Nov 6, 202611-508 contacts →

Exact match

“We are a Japanese trading company involved in marketing pharmaceuticals, compounds for drug discovery, intermediates, and health foods.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact match中央区, JapanHQ recorded Nov 6, 202611-507 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact match西宮市, JapanHQ recorded Nov 6, 20261-107 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 15 of 76 api contract manufacturers based in Japan

See the full list, filter by size, metro and specialty, and access 1,953 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Api contract manufacturers based in Japan at a glance

As of Nov 6, 2026
44.5%Verified-email coverage
57.8Average contacts per company
51-200Median size (employees)
9.2%Largest-city concentration · Xian
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
9
11-50
17
51-200
17
201-500
19
501-1,000
4
1,001-5,000
8
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 76 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 “api contract 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 1,953 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 November 6, 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 “api contract manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many api contract manufacturers are there based in Japan?

RevenueBase identified 76 company matches for api contract manufacturers associated with Japan as of November 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?

中外製薬工業 Chugai Pharma Manufacturing Co., LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most api contract manufacturers?

Xian leads with 7 company records, followed by Tokyo (6) and Da Ban Fu (3).

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 1,953 professional contacts with verified work emails tracked across these 76 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 November 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 76 api contract manufacturers based in Japan. Start with a free account, no credit card.

Download this list →

Related lists

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.