| Business | Phone |
| Corbin Well Drilling 1380 E 100 S, Columbia City 46725 | (260) 244-3804 |
| Doug Richards Well Drilling 8850 N 300 W, Columbia City 46725 | (260) 244-7969 |
| G & K Well Drilling Inc 2215 E Paige Rd, Columbia City 46725 | (260) 244-3453 |
| Hollenbaugh Well Drilling Inc 7990 S 200 E, Columbia City 46725 | (260) 396-2151 |
| M C Wheeler & Sons 7055 N 350 W, Columbia City 46725 | (260) 799-5511 |