| EMC OF JAX., INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Corporation | Nov 13, 1979 | Inactive |
| B. W. SERVICES, INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Corporation | Nov 14, 1979 | Inactive |
| KING LUMBER OF KEYSTONE, INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Corporation | Dec 6, 1979 | Inactive |
| PERRET'S FISHING & HUNTING SHOP, INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Corporation | Jan 3, 1980 | Inactive |
| JOHN D. BROWN INSURANCE, INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Corporation | Jan 17, 1980 | Inactive |
| TRAIL RIDGE NURSERY, INC.Keystone Hts, FL · Inactive | Keystone Hts, FL | Corporation | Feb 1, 1980 | Inactive |
| L.W.O., INC.Keystone Hts, FL · Inactive | Keystone Hts, FL | Corporation | Feb 1, 1980 | Inactive |
| PERRYMAN'S GARBAGE SERVICE, INCORPORATEDKeystone Heights, FL · Inactive | Keystone Heights, FL | Corporation | Mar 6, 1980 | Inactive |
| VANGUARD MEDICAL ENTERPRISES, INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Corporation | Apr 24, 1980 | Inactive |
| BEN WALKER INSURANCE AGENCY, INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Corporation | May 23, 1980 | Inactive |
| C. KASKEY AND ASSOCIATES, INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Corporation | Jul 14, 1980 | Inactive |
| P.B.P., INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Corporation | Jul 17, 1980 | Inactive |
| OKEMOS TRUCKING CO., INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Corporation | Jul 28, 1980 | Inactive |
| MILCAR, INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Corporation | Sep 29, 1980 | Inactive |
| KEYSTONE HEIGHTS REALTY INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Corporation | Aug 3, 1981 | Inactive |
| EATON KEYSTONE CLINIC OF CHIROPRACTIC, P.A.Keystone Heights, FL · Inactive | Keystone Heights, FL | Corporation | Aug 6, 1981 | Inactive |
| THE GOSPEL VOLUNTEERS INC.Location not reported, FL · Inactive | Location not reported, FL | Nonprofit | Apr 28, 1960 | Inactive |
| NORTH FLORIDA CHRISTIAN SERVICE CAMP, INCORPORATEDKeystone Heights, FL · Active | Keystone Heights, FL | Nonprofit | Oct 9, 1964 | Active |
| KEYSTONE LIONS HOLDING CORPORATIONKeystone Heights, FL · Inactive | Keystone Heights, FL | Nonprofit | Jan 25, 1966 | Inactive |
| INTERNATIONAL BROTHERHOOD OF MAINTENANCE EMPLOYEES, MAIDS, PORTERS AND JANITORS OF AMERICA, LOCAL UNION #1, INC.Location not reported, FL · Inactive | Location not reported, FL | Nonprofit | Mar 7, 1967 | Inactive |
| PARK OF THE PALMS.CHURCH, INC.Keystone Heights, FL · Active | Keystone Heights, FL | Nonprofit | Apr 28, 1967 | Active |
| PARK OF THE PALMS BIBLE CENTER, INC.Location not reported, FL · Inactive | Location not reported, FL | Nonprofit | Jun 9, 1967 | Inactive |
| KEYSTONE HEIGHTS SPORTSMEN'S CLUB, INC.Location not reported, FL · Inactive | Location not reported, FL | Nonprofit | Aug 22, 1967 | Inactive |
| SUCCESS TODAY INTERNATIONAL, INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Nonprofit | Apr 26, 1968 | Inactive |
| FIRST BAPTIST CHURCH OF KEYSTONE HEIGHTS, INC.Keystone Heights, FL · Active | Keystone Heights, FL | Nonprofit | Aug 28, 1969 | Active |
| M. O. V. E. , INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Nonprofit | Mar 17, 1970 | Inactive |
| INTERNATIONAL MISSIONS INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Nonprofit | Sep 14, 1970 | Inactive |
| KEYSTONE HEIGHTS CEMETERY ASSOCIATION, INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Nonprofit | Mar 5, 1971 | Inactive |
| THE POSTMASTERS RETIREMENT VILLAGE ASSOCIATION, INC.Keystone Heights, FL · Active | Keystone Heights, FL | Nonprofit | Mar 31, 1972 | Active |
| SMOKERISE CIVIC ASSOCIATION, INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Nonprofit | Sep 7, 1973 | Inactive |
| PARK OF THE PALMS, INC.Keystone Heights, FL · Active | Keystone Heights, FL | Nonprofit | Sep 7, 1973 | Active |
| FLORIDA TRAIL RIDERS, INC.Keystone Heights, FL · Active | Keystone Heights, FL | Nonprofit | Oct 18, 1973 | Active |
| SPRING LAKE VILLAGE CIVIC ASSOCIATION, INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Nonprofit | Mar 26, 1974 | Inactive |
| KEYSTONE HEIGHTS VOLUNTEER FIRE DEPARTMENT, INC.Keystone Hgts, FL · Inactive | Keystone Hgts, FL | Nonprofit | Mar 26, 1975 | Inactive |
| THE NORTH FLORIDA BLUE GRASS ASSOCIATION INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Nonprofit | Jun 6, 1975 | Inactive |
| BIG TREE LAKES PROPERTY OWNERS' ASSOCIATION, INCKeystone Heights, FL · Inactive | Keystone Heights, FL | Nonprofit | Sep 11, 1975 | Inactive |
| KEYSTONE REBELS, INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Nonprofit | Sep 22, 1975 | Inactive |
| KEYSTONE SENIOR SERVICE, INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Nonprofit | Oct 9, 1975 | Inactive |
| FRIENDSHIP BIBLE CHURCH OF KEYSTONE HEIGHTS INC.Keystone Heights, FL · Active | Keystone Heights, FL | Nonprofit | Nov 12, 1975 | Active |
| KLARE ESTATES COMMUNITY ASSOCIATION, INC.Keystone Heights, FL · Active | Keystone Heights, FL | Nonprofit | May 4, 1976 | Active |
| SHADOWLAWN SPORTSMEN'S CLUB, INC.Keystone Hghts, FL · Inactive | Keystone Hghts, FL | Nonprofit | Mar 18, 1977 | Inactive |
| PLANTATION FARMS ASSOCIATION, INC.Keystone Heights, FL · Active | Keystone Heights, FL | Nonprofit | Jul 26, 1977 | Active |
| CRYSTAL LAKE ENVIRONMENTAL ORGANIZATION, INCKeystone Heights, FL · Inactive | Keystone Heights, FL | Nonprofit | Oct 18, 1977 | Inactive |
| OAK FOREST HOME OWNERS ASSOCIATION, INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Nonprofit | Dec 12, 1977 | Inactive |
| KEYSTONE GOLF AND COUNTRY CLUB, INC.Keystone Heights, FL · Active | Keystone Heights, FL | Nonprofit | Dec 19, 1977 | Active |
| THE COMMUNITY CHURCH OF KEYSTONE HEIGHTS, INC.Keystone Heights, FL · Active | Keystone Heights, FL | Nonprofit | Dec 30, 1977 | Active |
| KEYSTONE CHRISTIAN YOUTH CENTER, INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Nonprofit | Jan 24, 1978 | Inactive |
| NEW LIFE FOR YOU, INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Nonprofit | Aug 3, 1978 | Inactive |
| KEYSTONE HEIGHTS JAYCEES CHARITIES, INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Nonprofit | Apr 3, 1979 | Inactive |
| LIVING WATER PRAYER COMMUNITY, INC.Keystone Heights, FL · Inactive | Keystone Heights, FL | Nonprofit | Apr 27, 1979 | Inactive |