| Business | Phone |
| Clear View Lens Lab 3972 Warrensville Center Rd, Cleveland 44122 | (216) 921-9636 |
| Emjay Laboratories 20820 Chagrin Blvd # 201, Cleveland 44122 | (216) 472-5102 |
| Spectra Laboratories 2801 Martin Luther King Jr Dr, Cleveland 44104 | (216) 231-5209 |
| Spectra Labs 11717 Euclid Ave, Cleveland 44106 | (216) 231-9026 |
| Spectra Labs 3330 W 25th St, Cleveland 44109 | (216) 661-3508 |
| Spectra Labs Inc 18720 Chagrin Blvd, Cleveland 44122 | (216) 295-1529 |
| Spectra Labs Inc 6606 Carnegie Ave, Cleveland 44103 | (216) 432-7039 |
| Redwood Toxicology Laboratory 30800 Chagrin Blvd, Cleveland 44124 | (216) 360-0013 |
| Nova Lab 40 S Park St, Cleveland 44146 | (216) 378-9930 |
| Novalabs Llc 23500 Mercantile Rd, Cleveland 44122 | (216) 378-9930 |
| L/M Science Lab Cleveland 44130 | (440) 843-2646 |
| Mumford Inc 1193 E 105th St, Cleveland 44108 | (216) 791-5082 |