1. Amgen Inc.
2. AstraZeneca PLC
3. Canon Medical Systems Corporation
4. Carestream Health Inc.
5. Eisai Co. Ltd.
6. Elekta AB
7. GE Healthcare
8. Hitachi Medical Systems
9. Koninklijke Philips N.V.
10. Merck & Co. Inc.
11. Pfizer Inc.
12. Shimadzu Corporation
13. Siemens Healthineers AG
14. Varian Medical Systems Inc.