| TRINITY UNITED METHODIST CHURCH, INCORPORATED, OF PLANT CITY, FLORIDAPlant City, FL · Inactive | Plant City, FL | Nonprofit | Dec 1, 1960 | Inactive |
| PLANT CITY'S CHURCH ON THE ROCK BAPTIST CHURCH, INC.Plant City, FL · Active | Plant City, FL | Nonprofit | Jan 18, 1962 | Active |
| DUNEDIN GRANGE NO. 170, INC.Location not reported, FL · Inactive | Location not reported, FL | Nonprofit | Aug 20, 1962 | Inactive |
| SHILOH BAPTIST ASSOCIATION, INC.Plant City, FL · Active | Plant City, FL | Nonprofit | May 19, 1965 | Active |
| ZENDAH TEMPLE CORPORATIONPlant City, FL · Active | Plant City, FL | Nonprofit | Aug 26, 1965 | Active |
| KIWANIS CLUB OF TARPON SPRINGS, FLORIDA, INC.Palm Harbor, FL · Inactive | Palm Harbor, FL | Nonprofit | Nov 6, 1967 | Inactive |
| TARPON SPRINGS YOUTH FOOTBALL CLUB, INC.Palm Harbor, FL · Inactive | Palm Harbor, FL | Nonprofit | Apr 2, 1968 | Inactive |
| SOUTH FLORIDA BAPTIST HOSPITAL, INC.Plant City, FL · Active | Plant City, FL | Nonprofit | May 29, 1968 | Active |
| FRIENDS OF THE KIRK, INC.Palm Harbor, FL · Inactive | Palm Harbor, FL | Nonprofit | Aug 26, 1968 | Inactive |
| EASTSIDE BAPTIST CHURCH OF PLANT CITY, FLORIDA, INC.Plant City, FL · Active | Plant City, FL | Nonprofit | Mar 10, 1969 | Active |
| THE DELIVERANCE TABERNACLE PENTECOSTAL CHURCH, INC.Plant City, FL · Active | Plant City, FL | Nonprofit | Oct 1, 1969 | Active |
| SHILOH BAPTIST CHURCH OF PLANT CITY, FLORIDA, INC.Plant City, FL · Active | Plant City, FL | Nonprofit | Oct 6, 1969 | Active |
| FIRST CHURCH OF GOD OF PLANT CITY, INC.Plant City, FL · Active | Plant City, FL | Nonprofit | Dec 22, 1969 | Active |
| THE APOSTOLIC CHURCH OF JESUS CHRIST, OF PLANT CITY, FLA., INC.Plant City, FL · Inactive | Plant City, FL | Nonprofit | Dec 16, 1970 | Inactive |
| MT. OLIVE BAPTIST CHURCH OF PLANT CITY, INCORPORATEDPlant City, FL · Active | Plant City, FL | Nonprofit | Feb 1, 1971 | Active |
| VICTORY MISSIONARY BAPTIST CHURCH INC.Plant City, FL · Active | Plant City, FL | Nonprofit | May 20, 1971 | Active |
| INNISBROOK CONDOMINIUM ASSOCIATION NO 2, INCPalm Harbor, FL · Inactive | Palm Harbor, FL | Nonprofit | Apr 13, 1972 | Inactive |
| ST. JOSEPH FAMILY FOUNDATION, INC.Plant City, FL · Active | Plant City, FL | Nonprofit | Mar 22, 1973 | Active |
| NORTHSIDE BAPTIST CHURCH, INC.Plant City, FL · Active | Plant City, FL | Nonprofit | Jan 24, 1974 | Active |
| WALDEN LAKE PROPERTY OWNERS ASSOCIATION, INC.Plant City, FL · Active | Plant City, FL | Nonprofit | Feb 15, 1974 | Active |
| THE HOLY CHURCH OF GOD, INC.Plant City, FL · Active | Plant City, FL | Nonprofit | Feb 27, 1974 | Active |
| UNION CONTRACTORS AND SUBCONTRACTORS ASSOCIATION, INC.Plant City, FL · Active | Plant City, FL | Nonprofit | Oct 29, 1974 | Active |
| EAST HILLSBOROUGH HISTORICAL SOCIETY, INC.Plant City, FL · Active | Plant City, FL | Nonprofit | Feb 19, 1975 | Active |
| ARTS COUNCIL OF PLANT CITY, INC.Plant City, FL · Active | Plant City, FL | Nonprofit | May 6, 1975 | Active |
| AN ADVENTURE IN FAITH, INC.Palm Harbor, FL · Inactive | Palm Harbor, FL | Nonprofit | Oct 2, 1975 | Inactive |
| TARPON SKI MASTERS, INC.Palm Harbor, FL · Inactive | Palm Harbor, FL | Nonprofit | Oct 8, 1975 | Inactive |
| QUAD-CITY CITIZEN BAND RADIO CLUB, INC.Palm Harbor, FL · Inactive | Palm Harbor, FL | Nonprofit | May 18, 1977 | Inactive |
| LAKE ESTATES IMPROVEMENT ASSOCIATION, INC.Palm Harbor, FL · Inactive | Palm Harbor, FL | Nonprofit | Sep 9, 1977 | Inactive |
| CRUSADER CHURCH OF FLORIDA, INC.Location not reported, FL · Inactive | Location not reported, FL | Nonprofit | Apr 4, 1978 | Inactive |
| PALM HARBOR JAYCEES, INC.Palm Harbor, FL · Inactive | Palm Harbor, FL | Nonprofit | Nov 13, 1978 | Inactive |
| CALVARY FELLOWSHIP ASSEMBLY OF GOD, INC.Plant City, FL · Active | Plant City, FL | Nonprofit | Jun 26, 1979 | Active |
| THE BIBLE FELLOWSHIP CHURCH OF PALM HARBOR, INC.Palm Harbor, FL · Inactive | Palm Harbor, FL | Nonprofit | Aug 24, 1979 | Inactive |
| KIWANIS CLUB OF PALM HARBOR AREA, INC.Palm Harbor, FL · Inactive | Palm Harbor, FL | Nonprofit | Oct 8, 1979 | Inactive |
| THE PALM LAKE SHOPPING CENTER MERCHANTS' ASSOCIATION, INC.Palm Harbor, FL · Inactive | Palm Harbor, FL | Nonprofit | Jan 8, 1980 | Inactive |
| SUNCOAST ECONOMICS ASSOCIATION, INC.Palm Harbor, FL · Inactive | Palm Harbor, FL | Nonprofit | Jan 18, 1980 | Inactive |
| OPC FIREFIGHTERS ASSOCIATION, INC.Palm Harbor, FL · Inactive | Palm Harbor, FL | Nonprofit | Feb 15, 1980 | Inactive |
| ARTHUR BORING CIVIC CENTER, INC.Plant City, FL · Inactive | Plant City, FL | Nonprofit | Feb 28, 1980 | Inactive |
| BAPTIST TOWERS OF PLANT CITY, INC.Plant City, FL · Inactive | Plant City, FL | Nonprofit | Mar 25, 1980 | Inactive |
| MY FATHER'S HOUSE OF FLORIDA, INCPlant City, FL · Active | Plant City, FL | Nonprofit | Mar 27, 1980 | Active |
| REALTY WORLD NORTH PINELLAS COUNCIL, INC.Palm Harbor, FL · Inactive | Palm Harbor, FL | Nonprofit | Jun 2, 1980 | Inactive |
| HILLSBOROUGH COUNTY AGRICULTURAL POLITICAL ACTION COMMITTEE, INC.Plant City, FL · Active | Plant City, FL | Nonprofit | Nov 7, 1980 | Active |
| FLORIDA SUNCOAST MG CLUB, INC.Palm Harbor, FL · Inactive | Palm Harbor, FL | Nonprofit | Nov 24, 1980 | Inactive |
| PLANT CITY FIRE DEPARTMENT SUPPORT SERVICES, INC.Plant City, FL · Active | Plant City, FL | Nonprofit | Jan 7, 1981 | Active |
| OZONA-PALM HARBOR ACTION COMMITTEE, INC.Palm Harbor, FL · Inactive | Palm Harbor, FL | Nonprofit | Mar 19, 1981 | Inactive |
| THE H. B. PLANT RAILROAD HISTORICAL SOCIETY, INC.Plant City, FL · Active | Plant City, FL | Nonprofit | Apr 21, 1981 | Active |
| GLEOH INTERNATIONAL HOUSING DEVELOPMENT, INCORPORATEDPlant City, FL · Active | Plant City, FL | Nonprofit | Apr 23, 1981 | Active |
| FLORIDA CHAPTER, NATIONAL LEAGUE OF FAMILIES OF AMERICAN PRISONERS AND MISSING IN SOUTHEAST ASIA, INC.Palm Harbor, FL · Inactive | Palm Harbor, FL | Nonprofit | Jun 26, 1981 | Inactive |
| THE AMERICAN INSTITUTE OF CERTIFIED MANAGEMENT CONSULTANTS, INC.Palm Harbor, FL · Inactive | Palm Harbor, FL | Nonprofit | Oct 2, 1981 | Inactive |
| PLANT CITY FIREMAN'S BENEFIT ASSOCIATIONPlant City, FL · Inactive | Plant City, FL | Nonprofit | Nov 13, 1981 | Inactive |
| FULL GOSPEL TABERNACLE OF PLANT CITY, INC.Plant City, FL · Active | Plant City, FL | Nonprofit | Jun 9, 1982 | Active |