| Business | Phone |
| Cima Systems 9377 Remuda Ct, Santee 92071 | (619) 562-4051 |
| Cybersage Software 9457 Hornbuckle Dr, Santee 92071 | (619) 687-1669 |
| Enviro-Systems 11355 Canyon Park Dr, Santee 92071 | (619) 596-0047 |
| Sabre Software Design 9565 Mast Blvd, Santee 92071 | (619) 397-3444 |
| Rountree Technologies 10035 Prospect Ave # 101, Santee 92071 | (619) 449-3277 |