| Business | Phone |
| Direct Marketing Research 1731 Embarcadero Rd # 200, Palo Alto 94303 | (650) 856-9988 |
| Fab File Online 855 El Camino Real # 255, Palo Alto 94301 | (650) 327-2029 |
| Frost & Sullivan 2400 Geng Rd # 201, Palo Alto 94303 | (408) 392-2000 |
| Hunter & Assoc Palo Alto 94301 | (650) 328-4448 |
| Killen & Assoc Inc 1212 Parkinson Ave, Palo Alto 94301 | (650) 327-2312 |
| Test Kitchens 548 Ruthven Ave, Palo Alto 94301 | (650) 325-5293 |
| Intersurvey 2464 Embarcadero Way, Palo Alto 94303 | (650) 475-2300 |
| Pacific Consulting Group 399 Sherman Ave # 1, Palo Alto 94306 | (650) 327-8108 |
| Signal Associates 818 Clara Dr, Palo Alto 94303 | (650) 813-9751 |
| Tier One Palo Alto 94303 | (650) 424-1234 |
| Tns Prognostics 4005 Miranda Ave # 200, Palo Alto 94304 | (650) 812-3900 |