| Business | Phone |
| Arthur Cherry Assoc 2227 Panama St, Philadelphia 19103 | (215) 732-9965 |
| At Your Fingertips Inc Po Box 2095, Philadelphia 19103 | (215) 844-8474 |
| Brecht Associates Inc 201 S 25th St # 208, Philadelphia 19103 | (215) 545-2905 |
| Brintnall & Nicolini Inc 1880 John F Kennedy Blvd # 16, Philadelphia 19103 | (215) 854-4200 |
| Focus Pointe 100 N 17th St, Philadelphia 19103 | (215) 561-5500 |
| Icon Information Concepts Inc 211 S 45th St, Philadelphia 19104 | (215) 349-6500 |
| J Reckner Assoc 1600 Market St # 1550, Philadelphia 19103 | (215) 981-0120 |
| Marketing Audit 1616 Walnut St # 1012, Philadelphia 19103 | (215) 545-6620 |
| Mee Productions 340 N 12th St # 503, Philadelphia 19107 | (215) 829-4920 |
| Meyers Group 1528 Walnut St, Philadelphia 19102 | (215) 893-9890 |
| National Analysts 1835 Market St # 25, Philadelphia 19103 | (215) 496-6800 |
| Omega Research Philadelphia 19131 | (215) 879-7665 |
| Peoplemetrics 1600 Market St # 1650, Philadelphia 19103 | (215) 979-8030 |
| Quality In Field Inc 1163 Chesworth Rd, Philadelphia 19115 | (215) 698-0606 |
| Research America Inc 7243 Frankford Ave, Philadelphia 19135 | (215) 338-1002 |
| Robert Kassow Inc 8400 Bustleton Ave # 302, Philadelphia 19152 | (215) 322-9617 |
| Rsvp Research Svc 1916 Welsh Rd # B, Philadelphia 19115 | (215) 969-8500 |
| Schlesinger Assocs-Phila 1650 Arch St # 2701, Philadelphia 19103 | (215) 564-7300 |
| Telephone Research Inc 6435 Castor Ave, Philadelphia 19149 | (215) 744-7677 |
| Teleresearch 10551 Decatur Rd, Philadelphia 19154 | (215) 612-7970 |