| Business | Phone |
| Au Gres Yacht Club Marina 3232 Midshipman Dr, Au Gres 48703 | (989) 876-8155 |
| Inland Marine Inc 333 S Main St, Au Gres 48703 | (989) 876-7185 |
| Northport Marina 471 S Otis Ln, Au Gres 48703 | (989) 876-8840 |
| Point Au Gres Marina & Camp 2325 Green Dr, Au Gres 48703 | (989) 876-7314 |
| All Season Marine 2115 E Huron Rd, Au Gres 48703 | (989) 876-8599 |