![Ramon kagie a9npnh Z Lhdo unsplash](/_next/image?url=https%3A%2F%2Fsosei-heptares.ams3.cdn.digitaloceanspaces.com%2FBrand-Images%2FPhotos%2F_2000xAUTO_crop_center-center_none%2Framon-kagie-a9npnhZLhdo-unsplash.jpg&w=3840&q=75)
Our Locations
Over 350 employees globally
Japan and APAC
Our Group Corporate headquarters and Clinical Development and Commercialization operations are located in Tokyo, Japan and Seoul, South Korea.
![Tokyo Idorsia offices](/_next/image?url=https%3A%2F%2Fsosei-heptares.ams3.cdn.digitaloceanspaces.com%2F2023-Corporate-Photos%2F_800xAUTO_crop_center-center_none%2FTokyo-Idorsia-offices.jpg&w=3840&q=75)
Tokyo, Japan
Group Headquarters
Midtown East
9-7-2 Akasaka Minato-ku
Tokyo 107-0052
Japan
![IPK](/_next/image?url=https%3A%2F%2Fsosei-heptares.ams3.cdn.digitaloceanspaces.com%2F_800xAUTO_crop_center-center_none%2FIPK.jpg&w=3840&q=75)
Seoul, South Korea
Corporate Office
F17, 410 Teheran-Ro
GangHam-Gu
Seoul 06192
South Korea
Europe
Our state-of-the-art R&D facilities are based in Cambridge, UK and we have Corporate Offices in London, UK and Basel, Switzerland.
![BLUE LAB 6](/_next/image?url=https%3A%2F%2Fsosei-heptares.ams3.cdn.digitaloceanspaces.com%2F2023-Corporate-Photos%2F_800xAUTO_crop_center-center_none%2FBLUE-LAB-6.jpg&w=3840&q=75)
Cambridge, UK
R&D Facility
Steinmetz & Cori Buildings
Granta Park
Great Abington,
Cambridge CB21 6DG
United Kingdom
![New london office](/_next/image?url=https%3A%2F%2Fsosei-heptares.ams3.cdn.digitaloceanspaces.com%2F_800xAUTO_crop_center-center_none%2FNew-london-office.jpeg&w=3840&q=75)
London, United Kingdom
Corporate Office
First Floor, Burleigh on the Strand
355-359 Strand
London WC2R 0HS
United Kingdom
![Basel offices](/_next/image?url=https%3A%2F%2Fsosei-heptares.ams3.cdn.digitaloceanspaces.com%2F_800xAUTO_crop_center-center_none%2FBasel-offices.jpg&w=3840&q=75)
Basel, Switzerland
Corporate Office
Office 1901, Spaces Grosspeter Tower
Grosspeteranlage 29
4052 Basel
Switzerland