| Business | Phone |
| Bertrand Township 3835 Buffalo Rd, Buchanan 49107 | (269) 695-5001 |
| Bertrand Twp Bldg Inspectors 3835 Buffalo Rd, Buchanan 49107 | (269) 684-5271 |
| Buchanan Parks & Recreation 302 N Red Bud Trl, Buchanan 49107 | (269) 695-3971 |
| Buchanan Sewage Disposal 502 River St, Buchanan 49107 | (269) 695-5291 |
| Buchanan Twp General Offices 15235 Main St, Buchanan 49107 | (269) 695-6442 |
| Community Hall 3830 Buffalo Rd, Buchanan 49107 | (269) 695-5772 |