| Business | Phone |
| Burrelle's Information Svc 555 W Nottingham Rd, Dayton 45405 | (937) 275-3727 |
| Rook Information Svc 60 W Franklin St, Dayton 45459 | (937) 293-7706 |
| Roytman Information Svc Inc 2911 Dutton Ct, Dayton 45458 | (937) 885-0821 |
| International Information Tech 1057 Trumbull Ave, Dayton 45427 | (330) 759-8591 |
| Redflex Traffic Systems 700 W 3rd St, Dayton 45402 | (937) 312-1454 |