| Business | Phone |
| Business Information Research 19580 Laurel Ave, Cleveland 44116 | (440) 333-3268 |
| Business Research Svc 23825 Commerce Park # A, Cleveland 44122 | (216) 831-5200 |
| Ver-A-Fast Corp 20545 Center Ridge Rd, Cleveland 44116 | (440) 331-0250 |
| Top Dawg Promotion Inc 17851 Englewood Dr, Cleveland 44130 | (440) 243-2733 |
| Triad Research Group 20325 Center Ridge Rd # 450, Cleveland 44116 | (440) 895-5353 |
| Cypress Research Group 3641 Sutherland Rd, Cleveland 44122 | (216) 295-9764 |
| Diamond Research Group 15700 Brewster Rd, Cleveland 44112 | (216) 791-8176 |
| Strategic Consumer Research 26250 Euclid Ave # 421, Cleveland 44132 | (216) 261-0308 |
| Fact Finders Corp 55 Public Sq # 2200, Cleveland 44113 | (216) 589-8531 |
| Shopservation Inc Cleveland 44102 | (216) 281-7467 |
| Signature Marketing Research 30799 Pinetree Rd # 221, Cleveland 44124 | (216) 831-7078 |
| Franklin Business Research 28626 Edgedale Rd, Cleveland 44124 | (216) 831-9543 |
| Freedonia Group 767 Beta Dr, Cleveland 44143 | (440) 684-9600 |
| Gallup Organization 200 Public Sq, Cleveland 44114 | (216) 776-1123 |
| Gallup Organization 23240 Chagrin Blvd, Cleveland 44122 | (216) 514-8378 |
| Research Investment 20600 Chagrin Blvd # 650, Cleveland 44122 | (216) 752-0300 |
| Glazer Research 26600 Renaissance Pkwy, Cleveland 44128 | (216) 464-5220 |
| H I Thomas Consulting Group Cleveland 44133 | (440) 230-1191 |
| Quick Test/Heakin 691 Richmond Rd # E19, Cleveland 44143 | (440) 473-1000 |
| Health Research Intl 1406 Westwood Ave # 200, Cleveland 44107 | (216) 521-3321 |
| Quality Demo Svc Inc 17000 Rockside Rd, Cleveland 44137 | (216) 587-7100 |
| Penn & Assoc 2095 Hampstead Rd, Cleveland 44118 | (216) 932-4368 |
| Opinionation 7859 W Ridgewood Dr, Cleveland 44129 | (440) 888-3170 |
| Opinions 500 Southpark Ctr, Cleveland 44136 | (440) 878-1889 |
| North Coast Research Group 25 W Prospect Ave # 1700, Cleveland 44115 | (216) 861-5780 |
| National Market Measures Inc 30405 Solon Rd # 1, Cleveland 44139 | (440) 542-2450 |