| Business | Phone |
| All American Auto Sales 245 W Main St, Riverhead 11901 | (631) 208-4000 |
| Mc Donly Motor Sales 14 Flanders Rd, Riverhead 11901 | (631) 727-2035 |
| Michael Angelo Auto Sales Inc 1309 Old Country Rd, Riverhead 11901 | (631) 369-4600 |
| Moutafis Motors 840 Old Country Rd, Riverhead 11901 | (631) 208-1818 |
| Old Riverhead Motors Inc 1141 W Main St, Riverhead 11901 | (631) 208-3037 |
| One Stop Auto Shop 2055 Route 24, Riverhead 11901 | (631) 727-1911 |
| Pam Rent A Car Route 25, Riverhead 11901 | (631) 727-7020 |
| Herb Obser Motors Inc 1320 Old Country Rd, Riverhead 11901 | (631) 727-8293 |
| Riverfront Motors Inc 245 W Main St, Riverhead 11901 | (631) 506-0001 |