| Business | Phone |
| Dick Jonilonis & Assoc 5811 Amaya Dr # 204, La Mesa 91942 | (619) 460-8925 |
| Gem Soft Inc 8725 Springview Ln, La Mesa 91941 | (619) 461-1381 |
| Shop Floor Automations Inc 5360 Jackson Dr # 118, La Mesa 91942 | (619) 461-4000 |
| Sophia Software Systs Inc La Mesa 91941 | (619) 460-1741 |
| Systems West 8554 Butte St, La Mesa 91941 | (619) 466-9971 |
| Yms Computer Solutions 8374 Allison Ave, La Mesa 91941 | (619) 469-9982 |