| Business | Phone |
| Colbert Farms Seed Corn Co Camp Illiana Rd, Washington 47501 | (812) 254-4141 |
| Graham Farms Inc Swan Pond Rd, Washington 47501 | (812) 254-0718 |
| Hoover Farms G & S Rr 4 Box 221aa, Washington 47501 | (812) 644-7149 |
| Wirts Farm Inc Rr 4 Box 157a, Washington 47501 | (812) 644-7458 |
| Triple S Farms Rr 1 Box 354, Washington 47501 | (812) 687-7222 |
| Oaktree Research Farm 400 North Rd, Washington 47501 | (812) 254-5801 |
| Memering Farms State Road 57 N, Washington 47501 | (812) 254-4997 |