| SHINING ISLAND LLCMarathon, FL · Active | Marathon, FL | LLC | Mar 27, 2018 | Active |
| OASIS NAIL SPA BY QT LLCMarathon, FL · Active | Marathon, FL | LLC | Mar 23, 2018 | Active |
| 611 MARATHON CANAL LLCMarathon, FL · Inactive | Marathon, FL | LLC | Mar 8, 2018 | Inactive |
| 3669 CHARNIE LANE LLCMarathon, FL · Active | Marathon, FL | LLC | Mar 7, 2018 | Active |
| TWO CONCHS GEAR INCMarathon, FL · Active | Marathon, FL | Corporation | Mar 1, 2018 | Active |
| EXPERT MAINTENANCE & REPAIR, LLCMarathon, FL · Active | Marathon, FL | LLC | Feb 23, 2018 | Active |
| FRESH START RESTORATION AND CLEANING LLCMarathon, FL · Inactive | Marathon, FL | LLC | Feb 21, 2018 | Inactive |
| DMLI OCEAN, LLCMarathon, FL · Active | Marathon, FL | LLC | Feb 20, 2018 | Active |
| OPEN WATER PRESS, LLCMarathon, FL · Active | Marathon, FL | LLC | Feb 20, 2018 | Active |
| THE KEYS D & W MULTI-SERVICE LLCMarathon, FL · Active | Marathon, FL | LLC | Feb 20, 2018 | Active |
| PAID BY THE LB., LLCMarathon, FL · Active | Marathon, FL | LLC | Feb 16, 2018 | Active |
| 38 INDIGO REEF, LLCMarathon, FL · Active | Marathon, FL | LLC | Feb 13, 2018 | Active |
| MORTON 407 LLCMarathon, FL · Active | Marathon, FL | LLC | Feb 13, 2018 | Active |
| TERESA HILLER, PAMarathon, FL · Active | Marathon, FL | Corporation | Feb 1, 2018 | Active |
| FLORIDA KEYS REAL ESTATE GROUP, LLCMarathon, FL · Active | Marathon, FL | LLC | Jan 22, 2018 | Active |
| BORUSS, LLCMarathon, FL · Active | Marathon, FL | LLC | Jan 19, 2018 | Active |
| S. SKIDMORE CONSTRUCTION, LLCMarathon, FL · Active | Marathon, FL | LLC | Jan 16, 2018 | Active |
| CHARLIE CHARTERS LLCMarathon, FL · Active | Marathon, FL | LLC | Jan 10, 2018 | Active |
| KEY CAVU LLCMarathon, FL · Active | Marathon, FL | LLC | Jan 10, 2018 | Active |
| J&S ALUMINUM LLCMarathon, FL · Active | Marathon, FL | LLC | Jan 9, 2018 | Active |
| NATIVE TAXI & TRANSPORTATION LLCMarathon, FL · Active | Marathon, FL | LLC | Jan 8, 2018 | Active |
| SPOTLESS POOL CLEANING, INCMarathon, FL · Active | Marathon, FL | Corporation | Jan 3, 2018 | Active |
| CARINA BLONDET SERVICES LLCMarathon, FL · Active | Marathon, FL | LLC | Jan 2, 2018 | Active |
| ISLAND 66, INC.Marathon, FL · Active | Marathon, FL | Corporation | Jan 2, 2018 | Active |
| IMBY, INC.Marathon, FL · Active | Marathon, FL | Corporation | Dec 21, 2017 | Active |
| SMART MONEY CONCEPTS LLCMarathon, FL · Inactive | Marathon, FL | LLC | Dec 19, 2017 | Inactive |
| LLEWDAC LAWN MAINTENANCE, INC.Marathon, FL · Active | Marathon, FL | Corporation | Dec 14, 2017 | Active |
| FLORIDA KEYS HURRICANE RECOVERY FOUNDATION INC.Marathon, FL · Active | Marathon, FL | Nonprofit | Dec 1, 2017 | Active |
| KEYS ALL AREA ROOFING, INCMarathon, FL · Active | Marathon, FL | Corporation | Dec 1, 2017 | Active |
| 28 PIERCE ROAD, LLCMarathon, FL · Active | Marathon, FL | LLC | Nov 28, 2017 | Active |
| MARATHON MEDICAL CENTER, LLCMarathon, FL · Active | Marathon, FL | LLC | Nov 28, 2017 | Active |
| POLE STRIPPER LLCMarathon, FL · Active | Marathon, FL | LLC | Nov 28, 2017 | Active |
| BETTER THAN MOST WATERSPORTS LLCMarathon, FL · Active | Marathon, FL | LLC | Nov 27, 2017 | Active |
| 271 RT. 16A, LLCMarathon, FL · Active | Marathon, FL | LLC | Nov 9, 2017 | Active |
| WOLFE PROPERTY MANAGEMENT LLCMarathon, FL · Active | Marathon, FL | LLC | Nov 9, 2017 | Active |
| WOLFE STEVENS PLLCMarathon, FL · Active | Marathon, FL | LLC | Nov 9, 2017 | Active |
| AMELIA'S FOOD FOR THOUGHT, INC.Marathon, FL · Active | Marathon, FL | Corporation | Nov 7, 2017 | Active |
| TWO CONCHS SPORTFISHING TV INCMarathon, FL · Active | Marathon, FL | Corporation | Nov 2, 2017 | Active |
| PLEIN AIR POINT LLCMarathon, FL · Active | Marathon, FL | LLC | Nov 1, 2017 | Active |
| MARATHON CRAB AND LOBSTER COMPANY, LLCMarathon, FL · Inactive | Marathon, FL | LLC | Oct 31, 2017 | Inactive |
| FLORIDA KEYS FINEST LAWN CARE SERVICE LLCMarathon, FL · Active | Marathon, FL | LLC | Oct 27, 2017 | Active |
| SCALETKA LLCMarathon, FL · Active | Marathon, FL | LLC | Oct 26, 2017 | Active |
| 1791 GROUPER LLCMarathon, FL · Active | Marathon, FL | LLC | Oct 24, 2017 | Active |
| J. EARLES PRECISION DRAFTING, DESIGN AND CONSULTING, INC.Marathon, FL · Active | Marathon, FL | Corporation | Oct 24, 2017 | Active |
| DTD OF THE FLORIDA KEYS, LLCMarathon, FL · Active | Marathon, FL | LLC | Oct 6, 2017 | Active |
| ROYAL KITCHEN STUDIOS, INC.Marathon, FL · Active | Marathon, FL | Corporation | Oct 4, 2017 | Active |
| FISHING KINGS LLCMarathon, FL · Active | Marathon, FL | LLC | Sep 27, 2017 | Active |
| ACE MARINE DETAILING LLCMarathon, FL · Active | Marathon, FL | LLC | Sep 19, 2017 | Active |
| FERRIS CONSULTING, LLCMarathon, FL · Active | Marathon, FL | LLC | Sep 18, 2017 | Active |
| WATER DAMAGE SPORT FISHING LLCMarathon, FL · Active | Marathon, FL | LLC | Sep 7, 2017 | Active |