| Business | Phone |
| Alcoa South Carolina Inc 211 Cotton Dike Rd, St Helena Island 29920 | (843) 838-8404 |
| Dataw Island Realty 121 Dataw Dr, St Helena Island 29920 | (843) 838-3838 |
| Fripp Island Properties Ownrs 225 Tarpon Blvd, St Helena Island 29920 | (843) 838-4155 |
| Fripp Island Real Estate 2 Harbor Dr N, St Helena Island 29920 | (843) 838-2410 |
| Fripp Island Real Estate Co 1 Tarpon Blvd, St Helena Island 29920 | (843) 838-2411 |
| Harbor Island Realty 2123 Sea Island Pkwy, St Helena Island 29920 | (843) 838-4722 |
| Island Realty 2 Harbor Dr, St Helena Island 29920 | (843) 838-3004 |
| Island Realty 2143 Sea Island Pkwy, St Helena Island 29920 | (843) 838-7020 |
| Town & Country Real Estate 1900 Sea Island Pkwy, St Helena Island 29920 | (843) 838-7595 |
| St Helena Realty 1000 Sea Island Pkwy, St Helena Island 29920 | (843) 838-5074 |