| Business | Phone |
| Columbus Grove Clerk 113 E Sycamore St, Columbus Grove 45830 | (419) 659-2365 |
| Columbus Grove Sewage & Water 113 E Sycamore St, Columbus Grove 45830 | (419) 659-5740 |
| Columbus Grove Sewage Dept 113 E Sycamore St, Columbus Grove 45830 | (419) 659-5441 |
| Union Local Adm Office 201 E Cross St, Columbus Grove 45830 | (740) 695-5776 |
| Monroe Twp Office 8500 Slabtown Rd, Columbus Grove 45830 | (419) 641-5430 |
| Pleasant Township Clerk 16416 Road 11, Columbus Grove 45830 | (419) 659-2902 |