| Business | Phone |
| Clay Machine Works Inc 99 Kentucky Ave, Clay 42404 | (270) 664-2429 |
| Custom Engineering Inc 656 Hall St, Clay 42404 | (270) 664-6207 |
| A-2-Z Construction Co 2876 State Route 109, Clay 42404 | (270) 664-9259 |
| Carlisle Machine 587 State Route 109 S, Clay 42404 | (270) 664-2681 |