| Business | Phone |
| Astoria Federal Savings & Loan 71 Sunset Ave, Westhampton Bch 11978 | (631) 288-2200 |
| Bank Of New York 154 Main St, Westhampton Bch 11978 | (631) 288-2220 |
| First Bank Card Systems 99 Main St, Westhampton Bch 11978 | (631) 288-0720 |
| Suffolk County National Bank 144 Sunset Ave, Westhampton Bch 11978 | (631) 288-4000 |