| Business | Phone |
| Jacobia Water Supply Corp 4228 Fm 118, Greenville 75401 | (903) 454-3046 |
| Caddo Basin Special Utility 156 County Road 1118, Greenville 75401 | (903) 527-3504 |
| Cash Water Supply Office Highway 34 S Fm 1569, Greenville 75402 | (903) 883-2695 |
| Shady Grove Water Supply Corp 3516 Fm 499, Greenville 75401 | (903) 454-8733 |