| Business | Phone |
| Optical Machinery Inc 9641 Wendell Rd, Dallas 75243 | (214) 342-1320 |
| Omega Optical Inc 13515 N Stemmons Fwy, Dallas 75234 | (972) 241-4141 |
| Optovision Technologies 10495 Olympic Dr, Dallas 75220 | (214) 351-1155 |
| Cvo Inc 2341 Charles St, Dallas 75228 | (214) 321-4347 |