| Business | Phone |
| Basic Electronics Inc 11371 Monarch St, Garden Grove 92841 | (714) 530-2400 |
| Kor Electronic 11958 Monarch St, Garden Grove 92841 | (714) 898-8200 |
| Vision Electronics 12601 Monarch St, Garden Grove 92841 | (714) 899-1105 |
| Trig-Tek Inc 11458 Knott St, Garden Grove 92841 | (714) 799-9550 |