| SOUTHERN ALT ONE LLCMarathon, FL · Active | Marathon, FL | LLC | Jan 15, 2020 | Active |
| MORTON STREET DEVELOPMENT CORP.Marathon, FL · Active | Marathon, FL | Corporation | Sep 12, 2002 | Active |
| SOUTHERN ALT TWO LLCPort St. Lucie, FL · Active | Port St. Lucie, FL | LLC | Jan 15, 2020 | Active |
| L. G. CLARK AND SONS, INC.Marathon, FL · Inactive | Marathon, FL | Corporation | Mar 29, 1977 | Inactive |
| THE OUTRIGGER SHOP, INC.Marathon, FL · Inactive | Marathon, FL | Corporation | Jul 7, 1978 | Inactive |
| MARATHON WIRELESS COMMUNICATIONS, INC.Marathon, FL · Inactive | Marathon, FL | Corporation | Sep 4, 1979 | Inactive |
| CARIBBEAN CLEARING CORPORATIONMarathon, FL · Inactive | Marathon, FL | Corporation | Jun 2, 1980 | Inactive |
| MR. GREENJEANS, INC.Marathon, FL · Inactive | Marathon, FL | Corporation | Oct 20, 1980 | Inactive |
| GETAM, INC.Marathon, FL · Inactive | Marathon, FL | Corporation | Mar 6, 1981 | Inactive |
| SHARKARIUM, INC.Marathon, FL · Inactive | Marathon, FL | Corporation | Aug 28, 1981 | Inactive |
| DUNCAN'S DAILY RENTALS, INC.Key West, FL · Inactive | Key West, FL | Corporation | Feb 16, 1982 | Inactive |
| COPANS HOLDINGS LTD., CO.Marathon, FL · Inactive | Marathon, FL | Corporation | Dec 15, 1994 | Inactive |
| WILTON HOLDINGS, LTD. (CO)Location not reported, FL · Inactive | Location not reported, FL | Corporation | Feb 20, 1995 | Inactive |
| THE MARINE MORTGAGE EXCHANGE CO.Marathon, FL · Inactive | Marathon, FL | Corporation | Aug 2, 1983 | Inactive |
| CAROLINE'S TOTS THRU TEENS, INC.Marathon, FL · Inactive | Marathon, FL | Corporation | May 14, 1984 | Inactive |
| ACTION HARDWARE, INC.Marathon, FL · Inactive | Marathon, FL | Corporation | Nov 15, 1984 | Inactive |
| KACY, INCORPORATED OF MONROE COUNTYMarathon Shores, FL · Inactive | Marathon Shores, FL | Corporation | Dec 31, 1984 | Inactive |
| AMBEL SHIPPING, INC.Marathon, FL · Inactive | Marathon, FL | Corporation | Apr 8, 1985 | Inactive |
| DEFRESCHIM, INC.Big Pine Key, FL · Inactive | Big Pine Key, FL | Corporation | Apr 8, 1985 | Inactive |
| DAVE ETHRIDGE, INC.Marathon, FL · Inactive | Marathon, FL | Corporation | Aug 9, 1985 | Inactive |
| OVERSEAS TROLLEY COMPANYMarathon, FL · Inactive | Marathon, FL | Corporation | Sep 3, 1985 | Inactive |
| CHOCOLATE CONCH, INC.Marathon, FL · Inactive | Marathon, FL | Corporation | Oct 16, 1985 | Inactive |
| JAVANLIN, INC.Marathon, FL · Inactive | Marathon, FL | Corporation | Oct 28, 1985 | Inactive |
| RAPID AUTO MARINE SERVICES, INC.Marathon, FL · Inactive | Marathon, FL | Corporation | Dec 4, 1985 | Inactive |
| RAY MORTON ENGINES, INC.Marathon, FL · Inactive | Marathon, FL | Corporation | Dec 5, 1985 | Inactive |
| ALURAL INTERNATIONAL, INC.Coral Gables, FL · Inactive | Coral Gables, FL | Corporation | Dec 20, 1985 | Inactive |
| GULF FREIGHT COMPANY, INC.Marathon, FL · Inactive | Marathon, FL | Corporation | Mar 28, 1986 | Inactive |
| SEABREEZE REFRIGERATION, INC.Marathon, FL · Inactive | Marathon, FL | Corporation | Jul 15, 1986 | Inactive |
| BECKER INVESTMENT GROUP, INC.Marathon, FL · Inactive | Marathon, FL | Corporation | Oct 29, 1986 | Inactive |
| SHINING IMAGE, INC.Marathon, FL · Inactive | Marathon, FL | Corporation | Mar 9, 1987 | Inactive |
| P.O.M.G., INC.Marathon, FL · Inactive | Marathon, FL | Corporation | Mar 27, 1987 | Inactive |
| SOUTHERN LANDSCAPE, BULLDOZING AND EXCAVATING, INC.Islamorada, FL · Inactive | Islamorada, FL | Corporation | May 7, 1987 | Inactive |
| SOUTHERN LIMOUSINE, INC.Islamorada, FL · Inactive | Islamorada, FL | Corporation | May 7, 1987 | Inactive |
| PRESTIGE ACQUISITIONS, LLCMarathon, FL · Inactive | Marathon, FL | LLC | May 18, 2004 | Inactive |
| OCEAN POINT VILLA UNIT 1, LLCMarathon, FL · Inactive | Marathon, FL | LLC | Mar 4, 2008 | Inactive |
| ECONOMY SUPPER CLUB AND LOUNGE LLCMarathon, FL · Inactive | Marathon, FL | LLC | Feb 10, 2009 | Inactive |
| MARATHON AFTER MIDNIGHT LLCMarathon, FL · Inactive | Marathon, FL | LLC | May 19, 2016 | Inactive |
| MARATHON AFTER MIDNIGHT LLCMarathon, FL · Active | Marathon, FL | LLC | May 5, 2025 | Active |
| THIRD WORLD UPLAND LLCMarathon, FL · Active | Marathon, FL | LLC | Mar 27, 2026 | Active |
| REPUBLIC MORTGAGE COMPANY, INC.Marathon, FL · Inactive | Marathon, FL | Corporation | Aug 8, 1990 | Inactive |
| CHARLES CATON CONSTRUCTION CORP.Marathon, FL · Inactive | Marathon, FL | Corporation | Jan 11, 1988 | Inactive |
| ME & MY SISTERS, INC.Islamorada, FL · Inactive | Islamorada, FL | Nonprofit | May 2, 2008 | Inactive |
| MARATHON YACHT REPAIR INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Aug 2, 2012 | Inactive |
| HAPPY DAYS CLEANING SERVICES, INC.Venice, FL · Inactive | Venice, FL | Corporation | Jul 9, 2020 | Inactive |
| RICHARD E. WARNER, P.A.Marathon, FL · Active | Marathon, FL | Corporation | Apr 7, 1992 | Active |