Ranked by oldest company 1. Becton, Dickinson and Co. | Year founded: 1897 2. Amgen Rhode Island | Year founded: 1980 3. Contech Medical | Year founded: 1987 SUBSCRIBERS: Click here to view the complete list. For information about participating in PBN’s Top Lists, or to make additions or corrections, call (401) 680-4838 or write to Research@PBN.com.
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Ranked by oldest company
1.