| Business | Phone |
| Sigma Associates Ltd 105 Timber Ridge Blvd, Pass Christian 39571 | (228) 452-4866 |
| Southern Fire & Safety Eqpt Co 229 Baywood Dr, Pass Christian 39571 | (228) 452-6120 |
| Usm Office Of Public Safety 123 E Second St, Pass Christian 39571 | (228) 452-1792 |