| Business | Phone |
| Analysis & Design Co Ltd 60 Broadhollow Rd # G2, Melville 11747 | (631) 549-2300 |
| Paul J Besmertnik 7 Hanford St, Melville 11747 | (631) 351-6966 |
| Catapano Engineering Pc 585 Broadhollow Rd, Melville 11747 | (631) 694-9696 |
| Clough Harbour & Assoc Llp 532 Broadhollow Rd, Melville 11747 | (631) 249-3669 |
| Milliman Usa 300 Broadhollow Rd # 202, Melville 11747 | (631) 385-6100 |
| Decilog Inc 555 Broadhollow Rd # 425, Melville 11747 | (631) 694-4610 |
| Demko 48 S Service Rd # 100, Melville 11747 | (631) 847-0037 |
| Fay Spofford & Thorndike Of Ny 125 Baylis Rd # 290, Melville 11747 | (631) 756-5999 |
| Korlipara Engineering 150 Broadhollow Rd # Ph7, Melville 11747 | (631) 421-2969 |
| Rrt Design & Construction 125 Baylis Rd # 350, Melville 11747 | (631) 756-1060 |