| Name | Phone | Category |
| Facebook | 650-543-4800 | Online Community |
| Fairfield Inns & Suites by Marriott | 650-631-0777 | Hotels & Motels |
| Falk, Cornell & Associates, LLP | 650-463-1550 | Attorneys |
| Family & Children Services | 650-326-6576 | Community & Human Services |
| FastSigns® | 650 368-7446 | Signs & Banners |
| Fedex Office | 650-328-3381 | Signs & Banners |
| Fehl-Safe Solutions | 650-353-4140 | Computers and Electronics |
| Fergus Garber Group | 650-475-0400 | Architects |
| Ferrari Maserati of Silicon Valley | 650-261-6000 | Automotive |
| Finnegan, Henderson, Farabow, Garrett & Dunner LLP | 650-849-6731 | Attorneys |
| First Republic Bank | 650-329-8883 | Banks & Credit Unions |
| The Fish Market | 650-493-9188 | Restaurants, Cafes & Catering |
| Fleurty | 650-965-2121 | Florists |
| Focused Lifestyle Solutions | 888-553-9222 | Business to Business Resources |
| Foothill College | 650-949-7200 | Education |
| Footwear Etc. | 650-328-1122 | Shoes |
| Four Seasons Hotel | 650-566-1200 | Wedding Coordinator |
| Franz Termite Control | 650-493-0445 | Home & Office |
| Free the Children | 650 815-9632 | Associations, Clubs & Organizations |