| CMC 11498, LLCNaples, FL · Active | Naples, FL | LLC | May 22, 2025 | Active |
| TMB FLORIDA, LLCNaples, FL · Active | Naples, FL | LLC | Feb 24, 2022 | Active |
| JCS NAPLES HOLDINGS, LLCNaples, FL · Active | Naples, FL | LLC | Jul 15, 2019 | Active |
| JCS INVESTMENTS, LLCNaples, FL · Active | Naples, FL | LLC | Apr 24, 2019 | Active |
| 5TH AVE SOUTH INVESTMENTS, LLCNaples, FL · Active | Naples, FL | LLC | Oct 11, 2016 | Active |
| ADVENTURE ISLAND, LLCNaples, FL · Active | Naples, FL | LLC | Mar 21, 2016 | Active |
| 550 5TH AVENUE SOUTH, LLCNaples, FL · Active | Naples, FL | LLC | Dec 12, 2013 | Active |
| VICTORIA SQUARE PROPERTIES, LLCNaples, FL · Active | Naples, FL | LLC | Nov 16, 2011 | Active |
| FIFTH AVENUE SOUTH BUSINESS IMPROVEMENT DISTRICT, INC.Naples, FL · Active | Naples, FL | Nonprofit | Dec 27, 2010 | Active |
| GLOBAL PROPERTIES OF NAPLES, LLCNaples, FL · Active | Naples, FL | LLC | Oct 20, 2010 | Active |
| JCS REALTY GROUP, LLCNaples, FL · Active | Naples, FL | LLC | May 5, 2010 | Active |
| JCS DEVELOPMENT, LLCNaples, FL · Active | Naples, FL | LLC | Mar 5, 2003 | Active |
| MARKER 40 CLUB, INC.Naples, FL · Inactive | Naples, FL | Nonprofit | Mar 24, 1977 | Inactive |
| POWELL AND YANSON BUILDING CONDOMINIUM ASSOCIATION, INC.Naples, FL · Active | Naples, FL | Nonprofit | Jan 27, 1978 | Active |
| PORT OF THE ISLANDS INVESTMENTS, LLCNaples, FL · Inactive | Naples, FL | LLC | May 17, 2005 | Inactive |
| PORT OF THE ISLANDS PROPERTIES, LLCNaples, FL · Inactive | Naples, FL | LLC | May 17, 2005 | Inactive |
| THE ISLANDS HOTEL, LLCNaples, FL · Inactive | Naples, FL | LLC | May 17, 2005 | Inactive |
| THE ISLANDS MARINA, LLCNaples, FL · Inactive | Naples, FL | LLC | May 17, 2005 | Inactive |
| THE ISLANDS CLUB, LLCNaples, FL · Inactive | Naples, FL | LLC | May 17, 2005 | Inactive |
| PORT OF THE ISLANDS MANAGEMENT, LLCNaples, FL · Inactive | Naples, FL | LLC | May 18, 2005 | Inactive |
| ROTHSCHILD INVESTMENTS, LLCNaples, FL · Inactive | Naples, FL | LLC | Jul 10, 2006 | Inactive |
| SLOW RIDZ, LLCNaples, FL · Inactive | Naples, FL | LLC | Jun 4, 2007 | Inactive |
| NEW HORIZON PROPERTIES, LLCNaples, FL · Inactive | Naples, FL | LLC | Sep 21, 2010 | Inactive |
| DEL MAR RETAIL PROPERTIES, LLCNaples, FL · Inactive | Naples, FL | LLC | Feb 22, 2013 | Inactive |
| US 41 NAPLES, LLCNaples, FL · Inactive | Naples, FL | LLC | Nov 2, 2016 | Inactive |
| CELEBRITY MARTINI GLASS AUCTION, LLCNaples, FL · Inactive | Naples, FL | LLC | Feb 5, 2025 | Inactive |
| PORT OF THE ISLANDS CHANNEL RESTORATION GROUP, INC.Naples, FL · Inactive | Naples, FL | Nonprofit | Mar 27, 2007 | Inactive |
| 837 FIFTH AVENUE SOUTH CONDOMINIUM ASSOCIATION, INC.Naples, FL · Active | Naples, FL | Nonprofit | Dec 16, 2025 | Active |