| Business | Phone |
| Circa Information Technologies 12001 Woodruff Ave # H, Downey 90241 | (562) 803-1594 |
| Tech Ed Svc Inc 8255 Firestone Blvd # 300, Downey 90241 | (562) 869-1913 |
| Circa Information 12001 Woodruff Ave # H, Downey 90241 | (562) 803-1594 |
| Worldnet 8607 Imperial Hwy, Downey 90242 | (562) 862-9419 |