| Business | Phone |
| Commercial Data Systems Inc 4263 Hilton Head St, San Antonio 78217 | (210) 657-6420 |
| Complete Data Systems Inc San Antonio 78217 | (210) 657-3355 |
| Indatatech 3463 Magic Dr 310, San Antonio 78229 | (210) 344-0012 |
| Quadra Tech 5402 King Richard St, San Antonio 78229 | (210) 684-5929 |
| Arinc Inc 4242 E Piedras Dr, San Antonio 78228 | (210) 733-7579 |
| Datacraft Systems 3202 Morning Brook St, San Antonio 78247 | (210) 494-4287 |
| Eds Corp 1201 N Loop 1604 E, San Antonio 78232 | (210) 545-4927 |
| Process Innovation Inc 6434 Club Oaks St, San Antonio 78249 | (210) 558-4236 |