| Business | Phone |
| Wiss Janney Elstner Assoc Inc 2 Trap Falls Rd # 502, Shelton 6484 | (203) 944-9424 |
| Szeker Engineering Inc 273 Canal St # 340, Shelton 6484 | (203) 924-5541 |
| Science Applications Intl Corp 20 Beverly Ln, Shelton 6484 | (203) 926-0035 |
| Cimarron Engineering Inc 2 Corporate Dr, Shelton 6484 | (203) 225-0812 |
| Coughlin Associates 10 Cayer Cir, Shelton 6484 | (203) 929-7963 |
| Descon Enterprises 8 Huntington St # 313, Shelton 6484 | (203) 925-9596 |
| Fitzgerald Construction Co 318 Meadow St, Shelton 6484 | (203) 924-0800 |
| Kmetz Tobias & Assoc 244 Thompson St, Shelton 6484 | (203) 929-8000 |