| Business | Phone |
| Bank Of America 53300 Main Rd, Southold 11971 | (631) 000-1111 |
| Bridgehampton National Bank 54970 Route 25, Southold 11971 | (631) 765-1500 |
| North Fork Bank 54375 Route 25, Southold 11971 | (631) 765-2800 |
| Hudson City Savings Bank 53345 Route 25, Southold 11971 | (631) 765-4019 |