| Business | Phone |
| Usi 2460 Stock Creek Rd, Knoxville 37920 | (865) 573-0122 |
| Rotocast Plastic Prods 5061 S National Dr, Knoxville 37914 | (865) 522-9902 |
| Pro Stead Engineered Plastics 2661 Byington Solway Rd, Knoxville 37931 | (865) 691-0516 |
| Formall Inc 3908 Fountain Valley Dr, Knoxville 37918 | (865) 922-7514 |
| Moldesign Mold Making 4720 Middlebrook Pike, Knoxville 37921 | (865) 588-3774 |
| Zman Companies 1403 Greenwell Drive, Knoxville 37938 | (865) 250-7749 |