| Business | Phone |
| Fluke Corp 2104 Hutton Dr 112, Carrollton 75006 | (972) 501-7200 |
| J & J Communications 2523 Canterbury Ct, Carrollton 75006 | (972) 242-1981 |
| Omninote 3333 Earhart Dr, Carrollton 75006 | (972) 789-1819 |
| Tandem Data Resource Group 2399 Midway Rd, Carrollton 75006 | (972) 732-9008 |
| Telephone Technical Svc 2300 Maxfield Ln, Carrollton 75006 | (972) 253-6000 |