| Business | Phone |
| Ram Comm Inc 890 N Mill St, Lewisville 75057 | (972) 221-3577 |
| Concerto Software Inc Lewisville 75067 | (972) 304-2100 |
| Woltcom 600 E Sandy Lake Rd 120, Lewisville 75067 | (972) 393-9734 |
| Txi 824 Office Park Cir, Lewisville 75057 | (972) 353-3393 |