| Business | Phone |
| Advent Corp 6514 Everhill Cir, Katy 77450 | (281) 395-1537 |
| Ags Network Systems 1715 Barton Creek Trl, Katy 77450 | (281) 398-7552 |
| Ansible Systems 19726 River Rock Dr, Katy 77449 | (281) 855-6554 |
| Katy Music Teachers Assoc 20607 Broadsky Dr, Katy 77449 | (281) 578-3089 |
| Keene Information Systems Inc 20626 Hannington Ln, Katy 77450 | (281) 579-0048 |