| Name | Phone | Category |
| TagIt World | 330-257-2837 | Business to Business Resources |
| The Tailor Maid | 650-328-8858 | Tailors |
| The Tan Group | 650-493-5500 | Real Estate |
| Tarlton Properties, Inc. | 650-330-3600 | Real Estate |
| Taylor Properties | 650-322-4433 | Real Estate |
| TeamLogic IT of Mountain View | 650-204-3153 | Computer and Technology Services |
| Technicolor | 650-815-4303 | Entertainment and Arts |
| Technology Credit Union | 650-326-6445 | Banks & Credit Unions |
| Telepacific Communications | 408 240-2200 | Telecommunications |
| Terrone Pizzeria & Ristorante | 650-847-7577 | Restaurants, Cafes & Catering |
| Tesla Motors, Inc. | 650-681-5000 | Automotive |
| TheatreWorks | 650-463-1950 | Theater Companies and Dinner Theaters |
| Thoits Brothers, Inc. | 650-323-4868 | Real Estate |
| Thoits, Love, Hershberger & McLean | 650-327-4200 | Attorneys |
| Thomas Fogarty Winery & Vineyard | 650-851-6777 | Wineries |
| TIBCO Software Inc. | 650-846-1000 | Computers and Electronics |
| Tiffany & Co. | 650-328-2552 | Jewelers |
| Toss Designs | 650-327-8677 | Shopping & Retail |
