1. Accuray Incorporated
2. Asensus Surgical US Inc.
3. GlaxoSmithKline PLC
4. Globus Medical Inc.
5. Hansen Medical Inc.
6. Intuitive Surgical Inc.
7. Johnson & Johnson Services Inc.
8. Lightpoint Medical
9. Merck Co. & Inc.
10. NuVasive Inc.
11. Siemens Healthineers AG
12. Smith & Nephew PLC
13. Stereotaxis Inc.
14. Stryker corporation
15. Zimmer Biomet