| Business | Phone |
| Advantage Resources 4421 Whittle Springs Rd, Knoxville 37917 | (865) 659-2023 |
| Omega Energy Management Inc Po Box 32637, Knoxville 37930 | (865) 692-9623 |
| National Resource Management 11020 Solway School Rd, Knoxville 37931 | (865) 927-4824 |
| Hi-Tech Resources 9040 Executive Park Dr, Knoxville 37923 | (865) 531-9185 |