Lists: General Contractors

Ranked by oldest contractor 1. Gilbane Building Co. | Year founded: 1870 2. Case Construction | Year founded: 1918 3. H.V. Collins Co. | Year founded: 1924 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

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