| Business | Phone |
| Emerald City Harbor Inc 24200 Jefferson Ave, St Clair Shores 48080 | (586) 772-4200 |
| Island Harbor 24102 Jefferson Ave, St Clair Shores 48080 | (586) 771-4840 |
| Jefferson Beach Marina 24400 Jefferson Ave, St Clair Shores 48080 | (586) 778-7600 |
| Ken's Marine Svc 24770 Jefferson Ave, St Clair Shores 48080 | (586) 552-8051 |
| Michigan Fiberglass Sales Inc 19795 E 9 Mile Rd, St Clair Shores 48080 | (586) 777-2032 |
| Michigan Harbor Properties 24600 Jefferson Ave, St Clair Shores 48080 | (586) 775-0852 |
| Miller Marina Inc 24770 Jefferson Ave, St Clair Shores 48080 | (586) 771-9000 |
| Michigan Marine Gear 20610 Stephens St, St Clair Shores 48080 | (586) 772-5556 |
| Prop Shop 24102 Jefferson Ave, St Clair Shores 48080 | (586) 779-8185 |