| BLACK BEAR IRRIGATION SOURCE, INC.Eustis, FL · Active | Eustis, FL | Corporation | Apr 14, 2015 | Active |
| BLACK HORSE MOTORS, LLCNaples, FL · Active | Naples, FL | LLC | Jun 25, 2009 | Active |
| ELECTRICAL & MECHANICAL MAINTENANCE, INC.New Port Richey, FL · Active | New Port Richey, FL | Corporation | Dec 11, 2023 | Active |
| FLORIDA COMMUNITY WATER SYSTEMS, INC.New Port Richey, FL · Active | New Port Richey, FL | Corporation | Dec 2, 2021 | Active |
| NORTHWEST FLORIDA WATER SYSTEM, INC.New Port Richey, FL · Active | New Port Richey, FL | Corporation | Oct 8, 2021 | Active |
| GDI HOLDING COMPANYNew Port Richey, FL · Active | New Port Richey, FL | Corporation | Aug 23, 2021 | Active |
| UNIVERSAL CONTROLS INSTRUMENT SERVICES, INC.New Port Richey, FL · Active | New Port Richey, FL | Corporation | Oct 5, 2020 | Active |
| COUNTRY WALK UTILITIES, INC.New Port Richey, FL · Inactive | New Port Richey, FL | Corporation | Sep 4, 2013 | Inactive |
| HC WATERWORKS, INC.New Port Richey, FL · Active | New Port Richey, FL | Corporation | Feb 25, 2013 | Active |
| LP WATERWORKS, INC.New Port Richey, FL · Inactive | New Port Richey, FL | Corporation | Dec 6, 2012 | Inactive |
| U.S. WATER SERVICES CORPORATIONNew Port Richey, FL · Active | New Port Richey, FL | Corporation | Apr 30, 2003 | Active |
| WOODY TUCKER PLUMBING & AIR CONDITIONING, INC.Odessa, FL · Active | Odessa, FL | Corporation | Jul 31, 2020 | Active |
| WATER TREATMENT & CONTROLS TECHNOLOGY, INC.Pensacola, FL · Active | Pensacola, FL | Corporation | Dec 1, 2016 | Active |
| SAGC/USWSC JV LLCSunrise, FL · Inactive | Sunrise, FL | LLC | Sep 3, 2019 | Inactive |
| SAGC/USWSC JV LLCHialeah, FL · Inactive | Hialeah, FL | LLC | Dec 22, 2021 | Inactive |
| AMEN AIR, INC.Port Richey, FL · Active | Port Richey, FL | Corporation | Feb 7, 1990 | Active |
| H20 UTILITY PARTNERS, INC.New Port Richey, FL · Inactive | New Port Richey, FL | Corporation | Jun 25, 2001 | Inactive |
| ATLANTIC UTILITY SERVICES COMPANYNew Port Richey, FL · Inactive | New Port Richey, FL | Corporation | Dec 26, 2002 | Inactive |
| COMMUNITY UTILITIES OF FLORIDA, INC.New Port Richey, FL · Inactive | New Port Richey, FL | Corporation | Dec 30, 2002 | Inactive |
| VIRGINIA CITY UTILITY COMPANYNew Port Richey, FL · Inactive | New Port Richey, FL | Corporation | Dec 30, 2002 | Inactive |
| DIXIE GROVES UTILITY COMPANYNew Port Richey, FL · Inactive | New Port Richey, FL | Corporation | Dec 30, 2002 | Inactive |
| D & D PROPERTY PARTNERS, INC.New Port Richey, FL · Inactive | New Port Richey, FL | Corporation | Dec 30, 2002 | Inactive |
| HOLIDAY WATERWORKS CORPORATIONNew Port Richey, FL · Inactive | New Port Richey, FL | Corporation | Apr 18, 2003 | Inactive |
| COLONIAL MANOR UTILITY COMPANYNew Port Richey, FL · Inactive | New Port Richey, FL | Corporation | Sep 16, 2003 | Inactive |
| HARBOR WATERWORKS, INC.New Port Richey, FL · Inactive | New Port Richey, FL | Corporation | Jan 25, 2012 | Inactive |
| LAKESIDE WATERWORKS, INC.New Port Richey, FL · Inactive | New Port Richey, FL | Corporation | Aug 29, 2012 | Inactive |
| HILLSBOROUGH WATERWORKS, INC.New Port Richey, FL · Inactive | New Port Richey, FL | Corporation | Jan 8, 2013 | Inactive |
| SUNNY HILLS UTILITY COMPANYNew Port Richey, FL · Inactive | New Port Richey, FL | Corporation | Mar 4, 2013 | Inactive |
| THE WOODS UTILITY COMPANYNew Port Richey, FL · Inactive | New Port Richey, FL | Corporation | Mar 4, 2013 | Inactive |
| LAKE OSBORNE WATERWORKS, INC.Port Richey, FL · Inactive | Port Richey, FL | Corporation | Mar 4, 2013 | Inactive |
| JUMPER CREEK UTILITY COMPANYNew Port Richey, FL · Inactive | New Port Richey, FL | Corporation | Mar 11, 2013 | Inactive |
| RAINTREE WATERWORKS, INC.New Port Richey, FL · Inactive | New Port Richey, FL | Corporation | May 8, 2014 | Inactive |
| BRENDENWOOD WATERWORKS, INC.New Port Richey, FL · Inactive | New Port Richey, FL | Corporation | May 8, 2014 | Inactive |
| LAKE IDLEWILD UTILITY COMPANYNew Port Richey, FL · Inactive | New Port Richey, FL | Corporation | Jul 18, 2014 | Inactive |
| BLACK BEAR WATERWORKS, INC.Eustis, FL · Inactive | Eustis, FL | Corporation | Apr 14, 2015 | Inactive |
| SEMINOLE WATERWORKS, INC.New Port Richey, FL · Inactive | New Port Richey, FL | Corporation | Jan 5, 2016 | Inactive |
| NORTH CHARLOTTE WATERWORKS, INC.Punta Gorda, FL · Inactive | Punta Gorda, FL | Corporation | Jan 12, 2016 | Inactive |
| PINE HARBOUR WATERWORKS, INC.Leesburg, FL · Inactive | Leesburg, FL | Corporation | May 27, 2016 | Inactive |
| MERRITT ISLAND UTILITY COMPANY, INC.Merritt Island, FL · Inactive | Merritt Island, FL | Corporation | Nov 28, 2016 | Inactive |
| SGI WASTEWATER SERVICES, INC.New Port Richey, FL · Inactive | New Port Richey, FL | Corporation | May 13, 2021 | Inactive |