| Business | Phone |
| Aflac 9 Main St # B, Winthrop 4364 | (207) 377-7614 |
| Blackstone Financial Svc 67 Main St, Winthrop 4364 | (207) 377-6330 |
| Brennan Insurance 168 Main St # A, Winthrop 4364 | (207) 377-2239 |
| Fairfield-Kilgore Insurance 99 Main St, Winthrop 4364 | (207) 377-6955 |