Noblesville, IN – Home to Largest Indy Area Medical Device Companies?

I recently saw an advertisement for ChooseNoblesville.com making the statement that Noblesville, IN (a suburb of Indy) is home to 4 of the largest Indianapolis area medical device and medical product developers. This claim caught my curiosity. I could think of a couple of medical device companies in Noblesville but not four. So I just had to ask who.

The response:

• King Systems
• Helmer Inc.
• Rochester Medical
• Therametric Technologies

Are these companies really 4 of the largest Indianapolis area medical device companies?