| Business | Phone |
| Apex Data Systems Inc 5641 W 73rd St, Indianapolis 46278 | (317) 216-4700 |
| Data Systems Inc 8316 Seabridge Way, Indianapolis 46240 | (317) 259-9006 |
| Technology Dynamics 8003 Castleway Dr # 200, Indianapolis 46250 | (317) 596-1226 |
| Tmw Systems Inc 5420 W Southern Ave # 207, Indianapolis 46241 | (317) 248-2000 |