| Business | Phone |
| Ase Construction 1401 W Woodland Ave, Tiffin 44883 | (419) 443-8785 |
| Foos Construction Inc 2355 E County Road 36, Tiffin 44883 | (419) 447-1553 |
| Gary Lucius Construction Co 2660 S Township Road 1189, Tiffin 44883 | (419) 447-3771 |
| Gibson Family Construction 47 Union St, Tiffin 44883 | (419) 447-7123 |
| Herman Construction 2770 S Township Road 1195, Tiffin 44883 | (419) 447-2170 |
| Herman Construction Llc 2223 S State Route 53, Tiffin 44883 | (419) 447-2170 |
| Hossler Co 1800 S County Road 19, Tiffin 44883 | (419) 447-2762 |
| Huffman Enterprises 40 Short St, Tiffin 44883 | (419) 447-5066 |
| Maneks Properties 142 Rosa St, Tiffin 44883 | (419) 447-6367 |
| Oam Construction 106 Oil St, Tiffin 44883 | (419) 443-9977 |
| Perry Builders Of Tiffin Inc 3400 E Township Road 122, Tiffin 44883 | (419) 443-1784 |
| Q Construction 20 E Market St, Tiffin 44883 | (419) 455-9233 |
| T Brookes Unlimited Inc 3767 E County Road 16, Tiffin 44883 | (419) 447-6138 |
| Thomas Daniel Construction Co 5717 W Township Road 112, Tiffin 44883 | (419) 937-2838 |
| Wenta Construction 7155 E Township Road 148, Tiffin 44883 | (419) 639-0900 |
| Zablocki Construction 1865 S County Road 19, Tiffin 44883 | (419) 447-7145 |