| Business | Phone |
| Cardservice International 141 Suburban Rd # A4, San Luis Obispo 93401 | (805) 544-0862 |
| Central Coast Processing 4211 Broad St, San Luis Obispo 93401 | (805) 544-2963 |
| Meridian Payment Systems 2146 Parker St, San Luis Obispo 93401 | (805) 546-2828 |