| Business | Phone |
| Terry Purdie Marine Surveyors 31018 Angeline Ct, St Clair Shores 48082 | (586) 294-7911 |
| Rzeppa Brothers Inc 22221 Grove Pointe St, St Clair Shores 48081 | (586) 778-0123 |
| Marine Consulting Svc Inc 22319 Benjamin St, St Clair Shores 48081 | (586) 530-3430 |
| Intersurvey Inc 23230 Greater Mack Ave 5, St Clair Shores 48080 | (586) 779-6580 |