| Business | Phone |
| S1 Corp 8501 Fallbrook Ave # 200, West Hills 91304 | (818) 992-3299 |
| Chamberware Systems 24328 Highlander Rd, West Hills 91307 | (818) 999-0700 |
| Marg Technologies 22722 Bassett St, West Hills 91307 | (818) 887-7920 |
| Trans Action Software Inc 23710 Fitzgerald St, West Hills 91304 | (818) 703-6499 |