| Business | Phone |
| Advanced Geomatics 217 Bridge St, Charlevoix 49720 | (231) 547-9901 |
| Boss Engineering & Surveying 215 Bridge St, Charlevoix 49720 | (231) 547-2872 |
| Ferguson & Chamberlain Assoc 103 W Upright St, Charlevoix 49720 | (231) 547-6882 |
| Ranger & Assoc Inc 6759 Us Highway 31 S, Charlevoix 49720 | (231) 547-6251 |