| Business | Phone |
| Simulation Dynamics 416 High St, Maryville 37804 | (865) 982-7046 |
| Howard Engineering 2004 Cochran Rd, Maryville 37803 | (865) 981-3741 |
| J R Wauford & Co 908 W Broadway Ave, Maryville 37801 | (865) 984-9638 |
| Fuzzy Logic Enterprises 2021 6 Mile Rd, Maryville 37803 | (865) 981-9383 |