Company lists · Data refreshed September 2026

Top 21 Clinical research consulting firms based in Japan

RevenueBase identified 84 company matches for clinical research consulting firms associated with Japan as of September 2026 and tracks 1,423 professional contacts across them, including 198 with verified work emails. Jing is the largest hub.

This list covers company matches for clinical research consulting firms 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 27, 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 27, 2026 How this list was built
84Companies
1,423Contacts tracked
198Verified emails
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The 21 largest clinical research consulting firms based in Japan

Ranked by team size
Top 21 of 84 company matches for clinical research consulting firms based in Japan, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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 matchOsaka, JapanHQ recorded Sep 27, 2026501-1,000287 contacts →

Exact match

“Linical is a global Contract Research Organization (CRO) for full-service drug development, with a proven record of helping biopharmaceutical companies successfully navigate the…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchMinato-ku, JapanHQ recorded Sep 27, 202651-200129 contacts →

Exact match

“Micron Inc, the leading Japanese imaging CRO, was established in 2005 with expertise in the field of molecular imaging.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact match台東区, JapanHQ recorded Sep 27, 2026201-50026 contacts →

Exact match

“English follows Japanese 20058 CRO iQCRO Becoming Asia's Best CRO Since being founded in 2005, we have always pursued the commitment that values hard work, fosters personal…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact match文京区, JapanHQ recorded Sep 27, 202651-20023 contacts →

Exact match

“Seed Planning is a Japan-based research and consulting firm with over four decades of experience supporting decision-making across healthcare, pharmaceuticals, life sciences, and…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchShibuya-ku, JapanHQ recorded Sep 27, 202651-20020 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchChiyoda-ku, JapanHQ recorded Sep 27, 2026201-50020 contacts →

Exact match

“We, Accerise was established in September 2004 with a CRA staffing service as our core business.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact match港区, JapanHQ recorded Sep 27, 202611-5018 contacts →

Exact match

“We solve your business issues with our leading number of Japanese physician panel with general/patient panel 11 million+ and a variety of survey methods with our researchers…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchShinjuku, JapanHQ recorded Sep 27, 202611-5013 contacts →

Exact match

“Eliquent Japan, formerly known as IDEC, is a Japanese regulatory consulting company.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact match豊島区南池袋, JapanHQ recorded Sep 27, 2026201-50013 contacts →

Exact match

“Well designed architecture is not only visually beautiful, but also has to be structurally safe and functional.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchShibuya-ku, JapanHQ recorded Sep 27, 20261-1012 contacts →

Exact match

“CJ PARTNERS, Inc.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchMinato-ku, JapanHQ recorded Sep 27, 202611-5010 contacts →

Exact match

“2016crocro2022 smo cra”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact match千代田区, JapanHQ recorded Sep 27, 202611-507 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact match品川区, JapanHQ recorded Sep 27, 20261-106 contacts →

Exact match

“CDI Medical is an independent strategic consulting firm specializing in the healthcare and medical sectors.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact match新宿区, JapanHQ recorded Sep 27, 202611-505 contacts →

Exact match

“t\t\t\t\t\t”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchTokyo, JapanHQ recorded Sep 27, 20261-104 contacts →

Exact match

“As part of SNBL-Japan’s #1 nonclinical CRO-Gemseki leverages SNBL’s comprehensive resources to accelerate innovation for the pharma and biotech sectors.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact match千代田区6-2-6, JapanHQ recorded Sep 27, 202611-503 contacts →

Exact match

“Sop 2.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact match京都市, JapanHQ recorded Sep 27, 202611-503 contacts →

Exact match

“It phr cro”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchMidori-ku, JapanHQ recorded Sep 27, 202611-502 contacts →

Exact match

“We provide contract testing services using cells.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchTokyo, JapanHQ recorded Sep 27, 20261-102 contacts →

Exact match

“INGENI CONSULTING is a Japan based consulting firm, focused on pharmaceutical, biotechnology and medical devices industries.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact match大阪市 中央区, JapanHQ recorded Sep 27, 202611-501 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchChiyoda-ku, JapanHQ recorded Sep 27, 20261-101 contacts →

Exact match

“Business Description SpectroDecypher provides a variety of business support for the development of laboratory drug products and pharmaceutical applications, as well as researching…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 21 of 84 clinical research consulting firms based in Japan

See the full list, filter by size, metro and specialty, and access 198 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Clinical research consulting firms based in Japan at a glance

As of Sep 27, 2026
13.9%Verified-email coverage
16.9Average contacts per company
11-50Median size (employees)
23.8%Largest-city concentration · Jing
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
29
11-50
24
51-200
12
201-500
6
501-1,000
4
1,001-5,000
5
5,001-10,000
2

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 84 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 “clinical research consulting firms” 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 198 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 27, 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 “clinical research consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many clinical research consulting firms are there based in Japan?

RevenueBase identified 84 company matches for clinical research consulting firms 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?

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

Which city has the most clinical research consulting firms?

Jing leads with 20 company records, followed by Tokyo (18) and Osaka (4).

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 198 professional contacts with verified work emails tracked across these 84 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 27, 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.