| Business | Phone |
| A-Z Typing 9756 Mason Ave, Chatsworth 91311 | (818) 993-3378 |
| Administrative Services Chatsworth 91311 | (818) 700-8973 |
| Ambassador Secretarial Group 10511 Laramie Pl, Chatsworth 91311 | (818) 709-0460 |
| Robotypist 21727 Wahoo Trl, Chatsworth 91311 | (818) 887-6230 |
| Written Communications Inc 21601 Devonshire St, Chatsworth 91311 | (818) 993-0930 |