| 911 Emergency | | 911 |
| Ameren Union Electric | | 314-342-1000 |
| AT&T (now Charter) telephone service | | 800-222-0300 |
| City of Kirkwood Electric | | 314-822-5836 |
| Cuiver River Electric | | 636-441-7410 |
| Duckett Creek Sewer | | 636-441-1244 |
| Eureka City Water | | 636-938-5233 |
| Kirkwood City Water | | 314-822-5836 |
| Laclede Gas Company | | 314-621-6960 |
| Metropolitan Sewer District | | 314-768-6260 |
| Midwest MO Gas | | 636-931-5353 |
| Missouri American Water (formerly St. Louis County Water) | | 866-430-0820 |
| MO Natural Gas | | 636-675-6577 |
| O' Fallon City Water | | 636-281-2858 |
| Southwestern Bell Res. Telephone Service | | 800-464-7928 |
| St. Charles City Water | | 636-949-3212 |
| St. Charles Gas | | 636-946-8937 |
| St. Louis City Water | | 314-771-2255 |
| St. Peters City Water | | 636-477-6600 xt 217 |
| Verizon (formerly GTE) telephone service | | 800-483-4400 |
| Warrenton Water | | 636-456-4113 |
| Webster Groves City Water | | 314-963-5332 |
| Wentzville Water | | 636-332-5101 |
