| Business | Phone |
| Business Week Editorial 901 Mariners Island Blvd # 545, San Mateo 94404 | (650) 372-3980 |
| Entertainment Publications 1670 S Amphlett Blvd # 220, San Mateo 94402 | (650) 286-9737 |
| Fawcette Technical Publication 2600 S El Camino Real # 300, San Mateo 94403 | (650) 378-7100 |
| Info World 177 Bovet Rd # 400, San Mateo 94402 | (650) 357-0200 |