| Business | Phone |
| Austin Interiors 103 Fort Salonga Rd # 5, Northport 11768 | (631) 261-3987 |
| Mason Contractors R Wb 17 Brewster Ave, Northport 11768 | (631) 757-2486 |
| Carl T Avino Inc 25 Laurel Ave, Northport 11768 | (631) 757-0351 |
| Carosan Contracting Corp 7 Rochelle Ln, Northport 11768 | (631) 754-5567 |
| Ciafardoni Construction 106 Wells Rd, Northport 11768 | (631) 757-5963 |
| Correia & Sons 1016 Fort Salonga Rd, Northport 11768 | (631) 757-0666 |
| European Home Builders Inc 10 Sandpiper Ln, Northport 11768 | (631) 757-6000 |
| Northport Industries Constr 490 Main St, Northport 11768 | (631) 262-0195 |
| J Seery Construction 16 Orchard Dr, Northport 11768 | (631) 544-1056 |
| Se-Be Contracting Ltd 19 Winkle Point Dr, Northport 11768 | (631) 754-8580 |
| T Compitiello General Contr 93 June Ave, Northport 11768 | (631) 757-2784 |
| Visions Designers Builders Inc 12 Timber Ln, Northport 11768 | (631) 262-1809 |
| William Kollmer Contr Inc 22 N Creek Rd, Northport 11768 | (631) 754-5252 |