| Business | Phone |
| Car-Lene Research Inc 924 Great Northern Mall, North Olmsted 44070 | (440) 979-0200 |
| Opinion Centers America Inc 25050 Country Club Blvd # 100, North Olmsted 44070 | (440) 779-3000 |
| Maffett Research Group Inc 25050 Country Club Blvd # 100, North Olmsted 44070 | (440) 779-1303 |