Medtronic. Medtronic remains the largest medical device company in the world.
Johnson & Johnson. Johnson & Johnson takes the second spot in 2020.
Thermo Fisher Scientific.
Abbott.
GE Healthcare.
Philips.
Fresenius Medical Care.
Siemens Healthineers.

https://www.proclinical.com/blogs/2020-9/who-are-the-top-10-medical-device-companies-in-the-world