| Business | Phone |
| Lookabill Optical 316 Lillington Ave, Charlotte 28204 | (704) 333-3781 |
| Wakefield Optical Co 711 Central Ave, Charlotte 28204 | (704) 372-3280 |
| Opti-Reps Inc 8037 Fairview Rd, Charlotte 28226 | (704) 545-1750 |
| Cingulus Technologies 10421 Kilmory Ter, Charlotte 28210 | (704) 752-5848 |