| Business | Phone |
| Graham-Obermeyer & Partners 644 Linn St # 936, Cincinnati 45203 | (513) 621-7073 |
| Modern Computational Techs Inc 10999 Reed Hartman Hwy, Cincinnati 45242 | (513) 745-0457 |
| Pinnacle Engineering Inc 4520 Cooper Rd # 300, Cincinnati 45242 | (513) 984-1663 |
| Smith Roberts & Assoc Inc 4010 Executive Park Dr # 400, Cincinnati 45241 | (513) 769-5111 |
| Steven Schaefer Assoc 10411 Medallion Dr, Cincinnati 45241 | (513) 542-3300 |
| Thp Ltd Inc 100 E 8th St # 9, Cincinnati 45202 | (513) 241-3222 |