| Business | Phone |
| Access Programming Svc 1507 Pebble Chase Dr, Katy 77450 | (281) 646-0756 |
| App Smiths Inc 2013 N Fry Rd 1502, Katy 77449 | (281) 578-0154 |
| Authentech Inc 1418 Greenway Village Dr, Katy 77494 | (281) 693-0008 |
| Auto'Trol Technology Corp 1014 Shillington Dr, Katy 77450 | (281) 599-0921 |
| Auto-Trol Technology Inc 23111 Fairvine Park Dr, Katy 77494 | (281) 395-3707 |
| Benedict Software & Consulting 24706 Porthcawl Ct, Katy 77494 | (281) 395-0083 |
| Bitsofcode Software Sysrem Inc 22523 Westbrook Cinco Ln, Katy 77450 | (281) 693-2633 |
| Datamatix 19718 Lindenfield Ct, Katy 77449 | (281) 398-2111 |
| Elvish Software Foundary Inc Katy 77450 | (281) 398-2625 |
| Millennium Computer & Network 23770 River Place Dr, Katy 77494 | (281) 693-3874 |
| Hte Inc 1003 Fern Ln, Katy 77493 | (281) 391-8682 |
| I2 Technilogies Inc 4507 Stackstone Ln, Katy 77450 | (281) 578-0074 |
| Joseph M Stephenson Computers 21403 Park Bend Dr, Katy 77450 | (281) 578-8406 |
| Cyberjee Systems, Inc. 23022 Catalina Harbor Ct,, Katy 77494 | (713) 382-3281 |