| Business | Phone |
| Bayou Liberty Water Assn 34578 Highway 433, Slidell 70460 | (985) 643-1216 |
| Coast Waterworks Inc 378 Lakeview Dr, Slidell 70458 | (985) 641-7932 |
| Cross Gates Utility Co 350 N Military Rd, Slidell 70461 | (985) 643-1376 |
| Williams Waterworks Inc 59517 Autumn Dr, Slidell 70461 | (985) 649-4945 |
| Slidell Sewer & Water Dept 1325 Bayou Ln, Slidell 70460 | (985) 646-4291 |
| Slidell Water Dept 2055 2nd St, Slidell 70458 | (985) 646-4311 |
| Resolve Systems Inc 460 Brownswitch Rd, Slidell 70458 | (985) 649-3776 |
| Parks Waterworks Inc 3090 Gause Blvd E A, Slidell 70461 | (985) 641-8844 |