| Business | Phone |
| Enhanced Accounting Software 2187 Newcastle Ave # 200, Cardiff By Sea 92007 | (760) 942-7600 |
| S 2 Technologies Inc 2031 San Elijo Ave, Cardiff By Sea 92007 | (760) 635-2344 |
| Hardcore Software 1710 Lahoud Dr, Cardiff By Sea 92007 | (760) 753-4214 |
| Legacy Technologies 1291 Rubenstein Ave, Cardiff By Sea 92007 | (760) 259-5777 |