| CLEARWATER MUSIC LESSONS, INC.Clearwater, FL · Active | Clearwater, FL | Corporation | Jul 15, 2013 | Active |
| 212 81ST LLCHolmes Beach, FL · Active | Holmes Beach, FL | LLC | Sep 9, 2019 | Active |
| TORTUGA VILLAS CONDOMINIUM ASSOCIATION, INC.Holmes Beach, FL · Active | Holmes Beach, FL | Nonprofit | Oct 23, 2012 | Active |
| INFINITY CUSTOM DESIGNS, INC.Jupiter, FL · Active | Jupiter, FL | Corporation | Feb 10, 2014 | Active |
| JOHNSTON CONSTRUCTION ENTERPRISE LLCRiverview, FL · Inactive | Riverview, FL | LLC | Jul 8, 2021 | Inactive |
| J C CRAIG, LLCSanta Rosa Beach, FL · Active | Santa Rosa Beach, FL | LLC | Apr 27, 2021 | Active |
| JOHNSTON CONSULTING PARTNERS LLCSt. Petersburg, FL · Active | St. Petersburg, FL | LLC | Dec 27, 2024 | Active |
| GRILLSMITH MANAGEMENT LLCTampa, FL · Active | Tampa, FL | LLC | Feb 22, 2023 | Active |
| MARK JOHNSTON LLCTampa, FL · Active | Tampa, FL | LLC | Aug 25, 2022 | Active |
| TRUSTED REAL ESTATE SERVICES LLCWindermere, FL · Active | Windermere, FL | LLC | Jul 3, 2018 | Active |
| GENEROUS INVESTMENT PROPERTIES LLCWindermere, FL · Active | Windermere, FL | LLC | Mar 25, 2016 | Active |
| FLORIDA FOREIGN CARS, INC.Pompano Beach, FL · Inactive | Pompano Beach, FL | Corporation | Dec 3, 1976 | Inactive |
| PROJECT III OF CENTRAL FLORIDA, INC.Orlando, FL · Inactive | Orlando, FL | Nonprofit | Dec 13, 1978 | Inactive |
| AVOW SYSTEMS, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Aug 3, 2009 | Inactive |
| ENVIRONMENTAL DEFENSE ALLIANCE, INC.Location not reported, FL · Active | Location not reported, FL | Nonprofit | May 15, 2019 | Active |
| CHARTBOOST, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Mar 16, 2023 | Inactive |
| THE MELTING POT RESTAURANTS, INC.Tampa, FL · Active | Tampa, FL | Corporation | Aug 14, 1984 | Active |
| FONDUE BLUES, INC.Miami, FL · Inactive | Miami, FL | Corporation | Mar 27, 1989 | Inactive |
| GENEROUS MORTGAGE SERVICES LLCOrlando, FL · Inactive | Orlando, FL | LLC | Dec 13, 2002 | Inactive |
| REBATE REAL ESTATE, LLCOrlando, FL · Inactive | Orlando, FL | LLC | Jan 5, 2004 | Inactive |
| JOHN 4:10 FRUIT TREE NURSERY, L.L.C.Lake Worth, FL · Active | Lake Worth, FL | LLC | Mar 30, 2004 | Active |
| JMJ PROPERTY DEVELOPMENT, LLCWellington, FL · Inactive | Wellington, FL | LLC | May 11, 2004 | Inactive |
| AMERICAN MOBILE HOME SALES, LLCEustis, FL · Inactive | Eustis, FL | LLC | Sep 3, 2004 | Inactive |
| MOBILE HOME DEVELOPMENT COMPANY, LLCClermont, FL · Inactive | Clermont, FL | LLC | Sep 3, 2004 | Inactive |
| WORLD INVESTMENTS LLCOrlando, FL · Inactive | Orlando, FL | LLC | Jan 5, 2006 | Inactive |
| GOOD NEWS INVESTMENTS LLCOrlando, FL · Inactive | Orlando, FL | LLC | Jan 8, 2006 | Inactive |
| CR 44 LLCClermont, FL · Inactive | Clermont, FL | LLC | Jul 24, 2006 | Inactive |
| REAL PROPERTY MANAGEMENT CONSTRUCTION, LLCTampa, FL · Inactive | Tampa, FL | LLC | Mar 20, 2007 | Inactive |
| ANAWAN PARTNERS LLCOrlando, FL · Inactive | Orlando, FL | LLC | Apr 21, 2008 | Inactive |
| NEW CITY PARTNERS LLCOrlando, FL · Inactive | Orlando, FL | LLC | Jul 17, 2008 | Inactive |
| RESIDENTIAL LENDERS RESOURCE, LLCWindermere, FL · Inactive | Windermere, FL | LLC | Jun 12, 2013 | Inactive |
| THE MUA NETWORK LLCAtlantic Beach, FL · Inactive | Atlantic Beach, FL | LLC | Dec 12, 2016 | Inactive |
| SUPERIOR BIOFUELS, LLCTampa, FL · Inactive | Tampa, FL | LLC | Dec 15, 2016 | Inactive |
| KHARMAR INVESTMENTS LLCLocation not reported, FL · Inactive | Location not reported, FL | LLC | Feb 7, 2017 | Inactive |
| EXUMA TREATMENT CENTER, LLCWest Palm Beach, FL · Inactive | West Palm Beach, FL | LLC | Jun 30, 2017 | Inactive |
| JOHNSTON BROTHERS MAINTENANCE LLCPort Pierce, FL · Inactive | Port Pierce, FL | LLC | Mar 7, 2024 | Inactive |
| TREES AND DEBRIS, LLCFort Pierce, FL · Active | Fort Pierce, FL | LLC | Jun 24, 2026 | Active |
| GRILLSMITH 109 LLCThe Villages, FL · Active | The Villages, FL | LLC | Sep 9, 2026 | Active |
| VAN WAGNER DORNA U.S.A., LLCLocation not reported, FL · Inactive | Location not reported, FL | LLC | Dec 20, 2002 | Inactive |
| M.A.C.O. ASSOCIATES, INC.Winter Park, FL · Inactive | Winter Park, FL | Nonprofit | May 27, 1986 | Inactive |
| PRAYER AND PRAISE TEMPLE INC.Hollywood, FL · Active | Hollywood, FL | Nonprofit | Jul 27, 1987 | Active |
| NORTH AMERICAN MARINE PROPELLER, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Apr 17, 1990 | Inactive |
| CHRISTIAN FAMILY LIFE INCORPORATEDLocation not reported, FL · Inactive | Location not reported, FL | Nonprofit | Oct 1, 1990 | Inactive |
| TOTAL SPORTS, INC.Windermere, FL · Inactive | Windermere, FL | Corporation | Feb 15, 1996 | Inactive |
| MARK JOHNSTON ENTERPRISES, INC.Windermere, FL · Inactive | Windermere, FL | Corporation | Jul 16, 1997 | Inactive |
| BRIGHT & CLEAN LAUNDROMAT, INC.N. Fort Myers, FL · Inactive | N. Fort Myers, FL | Corporation | Aug 15, 1997 | Inactive |
| PASSPORT TO AMERICA, INC.Orlando, FL · Inactive | Orlando, FL | Corporation | Jul 13, 1998 | Inactive |
| C S A, INC.Inverness, FL · Inactive | Inverness, FL | Corporation | Apr 29, 1992 | Inactive |