| A.C. KOSKI ASSOCIATES, INCORPORATEDBoca Raton, FL · Inactive | Boca Raton, FL | Corporation | Jan 22, 1973 | Inactive |
| PARAMOUNT MANAGEMENT, INC.Jupiter, FL · Inactive | Jupiter, FL | Corporation | Nov 18, 1975 | Inactive |
| KOSKI CONSTRUCTION CO.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Jan 17, 1978 | Inactive |
| OMNI INTERIORS, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Nov 22, 1978 | Inactive |
| 1979 INVESTMENTS, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Dec 5, 1979 | Inactive |
| HIGHLAND BEACH DEVELOPMENT, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Dec 5, 1979 | Inactive |
| BOCA RATON TITLE COMPANY, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Jan 31, 1980 | Inactive |
| VILLAGE OF WOODBRIDGE CONDOMINIUM ASSOCIATION, INC.Location not reported, FL · Inactive | Location not reported, FL | Nonprofit | Jul 11, 1978 | Inactive |
| JEREMIAH'S, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Oct 9, 1980 | Inactive |
| GREATER ATLANTIC CORPORATIONJupiter, FL · Inactive | Jupiter, FL | Corporation | Jan 22, 1981 | Inactive |
| KENT BREEDING FARM, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Apr 10, 1981 | Inactive |
| TODO MUEBLE EUROPEAN MODULAR SYSTEM, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Oct 5, 1981 | Inactive |
| CHEM TAC, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Jul 29, 1982 | Inactive |
| MALVAN & ZUCKER, P.A.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Sep 17, 1982 | Inactive |
| WEST BOCA NAUTILUS, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Jan 14, 1983 | Inactive |
| VALLEY EXECUTIVE SUITE, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Jan 6, 1984 | Inactive |
| CORONADO BREEDING FARMS, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Jun 7, 1984 | Inactive |
| ARTHUR C. KOSKI, P.A.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Mar 26, 1985 | Inactive |
| CONSOLIDATED UTILITY RESOURCES, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Sep 17, 1985 | Inactive |
| LILIANA ENTERPRISE II, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Feb 18, 1986 | Inactive |
| SANCTUARY PLACE, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Dec 29, 1986 | Inactive |
| ROSINAL CORPORATION, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Feb 17, 1987 | Inactive |
| A.C. KOSKI AND ASSOCIATES, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Aug 3, 1987 | Inactive |
| NORTH AMERICAN MARINE, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Apr 13, 1988 | Inactive |
| EXETER CAPITAL, LLCBoca Raton, FL · Inactive | Boca Raton, FL | LLC | Jun 27, 2003 | Inactive |
| ENGINEERING RISK CONSULTANTS, LLCBoca Raton, FL · Inactive | Boca Raton, FL | LLC | Jan 21, 2014 | Inactive |
| WP ENTERPRISES, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Oct 16, 1989 | Inactive |
| LITTLE SILVER INVESTMENTS, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Mar 25, 1988 | Inactive |
| UNICON GROUP, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Mar 25, 1988 | Inactive |
| HARBOUR RESTAURANT MANAGEMENT, INC.Delray Beach, FL · Inactive | Delray Beach, FL | Corporation | Mar 8, 2010 | Inactive |
| ERC MODULAR SALES INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Feb 13, 2019 | Inactive |
| ERC MODULAR BUILDING SOLUTIONS INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Sep 8, 2021 | Inactive |
| NUNU HOLDINGS INCBoca Raton, FL · Inactive | Boca Raton, FL | Corporation | Oct 11, 2021 | Inactive |
| BLACK DIAMOND INVESTMENT PROPERTIES, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Feb 21, 1994 | Inactive |
| LITTLE JOE'S MELLOW MEATBALL, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Jun 19, 1995 | Inactive |
| 399 WEST PALMETTO, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Jul 10, 1995 | Inactive |
| SNOWDEN AND ROY FINE LINENS, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Aug 28, 1995 | Inactive |
| VON GEL SERVICES, INC.Oakland Park, FL · Inactive | Oakland Park, FL | Corporation | Dec 24, 1996 | Inactive |
| LAW OFFICES OF ARTHUR C. KOSKI, P.A.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Jan 12, 1998 | Inactive |
| KOSKI & ASSOCIATES, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Jan 12, 1998 | Inactive |
| EXETER REALTY TRUST, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | May 6, 1999 | Inactive |
| T'AMANI MANAGEMENT, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Nov 26, 1990 | Inactive |
| UNICON REALTY, INC.Boca Raton, FL · Inactive | Boca Raton, FL | Corporation | Jun 24, 1991 | Inactive |