| Business | Phone |
| Business Research Group 1030 Stratford Pl, Bloomfield Hills 48304 | (248) 642-6400 |
| Rda Group 450 Enterprise Ct, Bloomfield Hills 48302 | (248) 332-5000 |
| Consumer Pulse 198 Nantucket Dr, Bloomfield Hills 48304 | (248) 540-1259 |
| Mc Donnell Inc 6905 Telegraph Rd 115, Bloomfield Hills 48301 | (248) 258-6324 |
| Ducker Research Co 6905 Telegraph Rd # 300, Bloomfield Hills 48301 | (248) 644-0086 |
| Edward Mc Callum Assoc 1142 Timberview Trl, Bloomfield Hills 48304 | (248) 646-0630 |