| Business | Phone |
| J-Kon Systems 8127 La Mesa Blvd # C, La Mesa 91941 | (619) 337-0396 |
| Newsoftworks Corp 8030 La Mesa Blvd # 119, La Mesa 91941 | (619) 795-7448 |
| Software Sourcery Systems Inc 7851 University Ave, La Mesa 91941 | (619) 469-4844 |
| Software Systems Assoc 7484 University Ave # L2, La Mesa 91941 | (619) 582-7900 |