| Business | Phone |
| Case's Ladder Inc 413 W Gates St, Mount Vernon 98273 | (360) 848-7761 |
| Cevian Technology 300 S 1st St 201, Mount Vernon 98273 | (360) 336-9994 |
| Fidalgo Networking 1725 Continental Pl D, Mount Vernon 98273 | (360) 428-3720 |
| Localnet Corp Mount Vernon 98273 | (360) 424-5156 |
| North West In Net Comms Mount Vernon 98273 | (360) 416-3995 |
| Telcomplus Mount Vernon 98273 | (360) 336-0789 |
| United Communications Inc 2204 Riverside Dr, Mount Vernon 98273 | (360) 424-8925 |
| Valley Internet & Computing 2021 E College Way 102, Mount Vernon 98273 | (360) 424-6110 |