| Business | Phone |
| Advantage Learning Center 1100 J St, Modesto 95354 | (209) 549-8600 |
| Computer Tutor 4306 Sisk Rd, Modesto 95356 | (209) 545-5200 |
| For Your Instruction Inc 2012 Robbie Ave, Modesto 95350 | (209) 312-1341 |
| Home Computer Assistance Po Box 4375, Modesto 95352 | (209) 529-1936 |
| Online Controller Svc Po Box 580092, Modesto 95358 | (209) 578-1650 |
| Worldwide Educational Svc 1620 N Carpenter Rd # D47, Modesto 95351 | (209) 575-1933 |