Top 7 Pharmaceutical companies in Japan
This curated ranking covers the 7 largest pharmaceutical companies in Japan, ordered by estimated audience size from Rascasse's anonymized search-behavior signals. Eisai (company), Galderma and Roche Diagnostics lead the list with a combined estimated audience of 71,080 people. Across all 7 entries the average audience size is 10,704, and the largest, Eisai (company), reaches around 41,006 people in Japan. Audience size is the estimated number of unique people in Japan who actively engage with each pharmaceutical company, derived from search demand signals. Rankings reflect search-behavior signals collected across Japan and are refreshed weekly.
Ranking
| Rank | Name | Audience size | Country share | Subtype | Category |
|---|---|---|---|---|---|
| 1 |  Eisai (company) |
41,006 | 19.2% | Pharmaceutical company | Health |
| 2 |  Galderma |
20,769 | 1.5% | Pharmaceutical company | Health |
| 3 |  Roche Diagnostics |
9,305 | 2.0% | Pharmaceutical company | Health |
| 4 |  Chinese Television System |
2,389 | 3.6% | Pharmaceutical company | Movies & TV |
| 5 |  Galenica |
618 | 0.1% | Pharmaceutical company | Business & Career |
| 6 |  lativ |
526 | 0.0% | Pharmaceutical company | Fashion & Accessoires |
| 7 |  Dr Willmar Schwabe |
321 | 0.5% | Pharmaceutical company | Health |
Frequently asked questions
How is this Top 7 list compiled?
Rascasse aggregates anonymized search-behavior signals across Japan and ranks each pharmaceutical company by its estimated audience size. Only entries with at least 5 measured entities are listed.
How often is the list updated?
The ranking is refreshed weekly from the latest search-behavior data and re-published as a static page.
What is the largest pharmaceutical company in Japan?
Eisai (company) currently leads with an estimated audience of 41,006 people in Japan.
Methodology
Audience sizes are estimated from anonymized search-behavior signals across Japan. Lists below 5 entries are not published. See methodology for full details.