| Business | Phone |
| Commack Tree Spraying 1034 W Jericho Tpke # 14, Smithtown 11787 | (631) 543-5600 |
| Conquest Tree Svc Li Inc 272 N Country Rd, Smithtown 11787 | (631) 265-9800 |
| Ecology Tree & Lawn Spraying Smithtown 11787 | (631) 979-0645 |
| Redwood Tree Corp 31 White Oak Dr, Smithtown 11787 | (631) 543-4609 |