| Business | Phone |
| All-Pro Real Estate Inc 9583 Overseas Hwy, Marathon 33050 | (305) 743-8333 |
| American Caribbean Real Estate 9141 Overseas Hwy, Marathon 33050 | (305) 743-7636 |
| Century 21 12690 Overseas Hwy, Marathon 33050 | (305) 743-9456 |
| Coco Plum Realtors 12222 Overseas Hwy, Marathon 33050 | (305) 289-2212 |
| Coldwell Banker 11100 Overseas Hwy, Marathon 33050 | (305) 289-3050 |
| Conch Realty Sales Inc 11400 Overseas Hwy # 101, Marathon 33050 | (305) 743-8877 |
| David H Boldak Brokers Sales 4560 Overseas Hwy, Marathon 33050 | (305) 289-9967 |
| Linda Lee De Field Marathon 33050 | (305) 743-4663 |
| Duck Key Realty 796 Duck Key Dr, Marathon 33050 | (305) 743-5000 |
| Florida Keys Rentals 5800 Overseas Hwy # 17, Marathon 33050 | (305) 743-0235 |
| Greg Cauble Realty Group Inc Po Box 500128, Marathon 33050 | (305) 743-8706 |
| Keys To The Key Real Estate 4680 Overseas Hwy, Marathon 33050 | (305) 743-2300 |
| Marathon & Lower Keys Assn 5800 Overseas Hwy # 15, Marathon 33050 | (305) 743-2485 |
| Marathon Key Real Estate 13688 Overseas Hwy, Marathon 33050 | (305) 743-6494 |
| Real Estate Co-Florida 7885 Overseas Hwy, Marathon 33050 | (305) 743-1919 |
| Schmitt Real Estate Co 11100 Overseas Hwy, Marathon 33050 | (305) 743-5181 |
| Waterfront Specialist 7993 Overseas Hwy # 4, Marathon 33050 | (305) 743-0644 |
| Vista Realty Sales Inc 123 Bruce Ct, Marathon 33050 | (305) 743-8260 |
| Tranquility Bay 11600 1st Avenue Gulf, Marathon 33050 | (305) 743-7776 |