| FAIRFIELD COUNTY ELECTRICAL ASSOCIATION, INC.Monroe, CT · Active | Monroe, CT | Corporation | Jan 20, 1977 | Active |
| FAIRFIELD COUNTY FISH & GAME PROTECTIVE ASSOCIATION, INCORPORATED, THEMonroe, CT · Active | Monroe, CT | Corporation | Mar 2, 1938 | Active |
| AAAA SCHOLARSHIP FOUNDATION, INC.Monroe, CT · Active | Monroe, CT | Corporation | Dec 6, 1963 | Active |
| CYRUS W. AND AMY F. JONES AND BESSIE D. PHELPS FOUNDATION, INC., THEMonroe, CT · Forfeited | Monroe, CT | Corporation | Mar 25, 1976 | Forfeited |
| HARMONY GRANGE #92 PATRONS OF HUSBANDRY INC.Monroe, CT · Active | Monroe, CT | Corporation | Oct 7, 1932 | Active |
| ISLAMIC COMMUNITY OF FAIRFIELD COUNTY, INC.Monroe, CT · Active | Monroe, CT | Corporation | Apr 30, 1976 | Active |
| MONROE WOMEN'S CLUB, INC.Monroe, CT · Active | Monroe, CT | Corporation | Mar 23, 1977 | Active |
| LAKEWOOD ESTATES ASSOCIATION, INC.Monroe, CT · Active | Monroe, CT | Corporation | Sep 5, 1967 | Active |
| MARBLE COLLECTORS SOCIETY OF AMERICA, INC.Monroe, CT · Active | Monroe, CT | Corporation | Dec 22, 1975 | Active |
| MONROE CHAMBER OF COMMERCE, INC.Monroe, CT · Active | Monroe, CT | Corporation | Jun 17, 1966 | Active |
| MONROE ELEMENTARY SCHOOL PARENT TEACHER ORGANIZATION, INC.Monroe, CT · Active | Monroe, CT | Corporation | Oct 12, 1976 | Active |
| MONROE VOLUNTEER FIRE DEPARTMENT NO. 1, INCMonroe, CT · Active | Monroe, CT | Corporation | Jun 19, 1923 | Active |
| MONROE HISTORICAL SOCIETY, INCORPORATEDMonroe, CT · Active | Monroe, CT | Corporation | Feb 3, 1959 | Active |
| MONROE LITTLE LEAGUE, INCORPORATED, THEMonroe, CT · Active | Monroe, CT | Corporation | Feb 11, 1959 | Active |
| THE MONROE LITTLE LIONS, INC.Monroe, CT · Active | Monroe, CT | Corporation | Aug 7, 1967 | Active |
| MONROE PUBLIC SCHOOL PARENTS' COUNCIL, INC., THEMonroe, CT · Active | Monroe, CT | Corporation | Oct 15, 1973 | Active |
| MONROE TAXPAYERS & VOTERS ASSOCIATION INC.Monroe, CT · Dissolved | Monroe, CT | Corporation | Nov 18, 1975 | Dissolved |
| ORTHODOX ROMAN CATHOLIC MOVEMENT, INCORPORATEDMonroe, CT · Active | Monroe, CT | Corporation | May 14, 1973 | Active |
| SIPPIN-WINSPUR POST 176 OF THE AMERICAN LEGION,INCORPORATED.Monroe, CT · Active | Monroe, CT | Corporation | May 19, 1954 | Active |
| STEPNEY PARENT - TEACHERS ORGANIZATION, INC.Monroe, CT · Active | Monroe, CT | Corporation | Jan 28, 1971 | Active |
| TRUMBULL GRANGE NO. 134 (PATRONS OF HUSBANDRY) INCORPORATED THEMonroe, CT · Dissolved | Monroe, CT | Corporation | Dec 24, 1928 | Dissolved |
| MASUK ALL SPORTS BOOSTER CLUB, INC.Monroe, CT · Active | Monroe, CT | Corporation | Jun 2, 1969 | Active |
| CONNECTICUT VISUAL HEALTH CENTER, INC.Monroe, CT · Dissolved | Monroe, CT | Corporation | Jan 18, 1971 | Dissolved |
| ALLIS-DISTASI INSURANCE INC.Monroe, CT · Dissolved | Monroe, CT | Corporation | Jan 19, 1978 | Dissolved |
| MIKRON CORP. MONROEMonroe, CT · Active | Monroe, CT | Corporation | Jan 26, 1978 | Active |
| STEVE PRICE TREE EXPERT COMPANYMonroe, CT · Dissolved | Monroe, CT | Corporation | Jan 31, 1978 | Dissolved |
| DBjorklund Engineers, IncMonroe, CT · Forfeited | Monroe, CT | Corporation | Aug 25, 1977 | Forfeited |
| MUMM ENGINEERING INC.Monroe, CT · Dissolved | Monroe, CT | Corporation | May 1, 1978 | Dissolved |
| FAWN HOLLOW PARENT-TEACHER ORGANIZATION, INC.Monroe, CT · Active | Monroe, CT | Corporation | Jun 5, 1978 | Active |
| DIMAURO DISTRIBUTORS, INC.Monroe, CT · Forfeited | Monroe, CT | Corporation | Jul 7, 1978 | Forfeited |
| J. & R. REALTY CO., INC.Monroe, CT · Active | Monroe, CT | Corporation | Jul 27, 1964 | Active |
| CROLL-REYNOLDS ENGINEERING COMPANY, INC.Monroe, CT · Forfeited | Monroe, CT | Corporation | Dec 19, 1960 | Forfeited |
| COUNTY CONSTRUCTION, INC.Monroe, CT · Dissolved | Monroe, CT | Corporation | Dec 21, 1978 | Dissolved |
| HOWE DRIVING SCHOOL, INC.Monroe, CT · Active | Monroe, CT | Corporation | Mar 22, 1979 | Active |
| S & S BUILDERS, INC.Monroe, CT · Dissolved | Monroe, CT | Corporation | Jun 4, 1979 | Dissolved |
| RICHARD E. LAIDLAW, INC.Monroe, CT · Dissolved | Monroe, CT | Corporation | Jun 20, 1979 | Dissolved |
| COLUMBIA PSYCHIATRIC AND CONSULTING ASSOCIATES, P.C.Monroe, CT · Dissolved | Monroe, CT | Corporation | Oct 1, 1979 | Dissolved |
| BILL'S DRIVE IN, INC.Monroe, CT · Dissolved | Monroe, CT | Corporation | Nov 5, 1979 | Dissolved |
| CHURCH SPECIALTIES, INC.Monroe, CT · Dissolved | Monroe, CT | Corporation | Nov 14, 1979 | Dissolved |
| CENTURY 21-GOLD COAST REALTY, INC.Monroe, CT · Forfeited | Monroe, CT | Corporation | Jan 9, 1980 | Forfeited |
| CARRUBBA, INCORPORATEDMonroe, CT · Active | Monroe, CT | Corporation | Mar 17, 1980 | Active |
| MONROE ARTS COUNCIL INC. THEMonroe, CT · Forfeited | Monroe, CT | Corporation | Jun 12, 1980 | Forfeited |
| ZUCKERMAN RESEARCH INC.Monroe, CT · Dissolved | Monroe, CT | Corporation | Aug 12, 1980 | Dissolved |
| G. L. EDGERTON CO., INC.Monroe, CT · Forfeited | Monroe, CT | Corporation | Sep 17, 1980 | Forfeited |
| CAREFREE TRAVEL, INC.Monroe, CT · Dissolved | Monroe, CT | Corporation | Nov 4, 1980 | Dissolved |
| CANDLEWOOD PRINTERS, INC.Monroe, CT · Dissolved | Monroe, CT | Corporation | Jun 5, 1967 | Dissolved |
| JAMES BARGAS, INC.Monroe, CT · Active | Monroe, CT | Corporation | Feb 18, 1981 | Active |
| CONTINENTAL MACHINERY EXCHANGE CORP.Monroe, CT · Active | Monroe, CT | Corporation | Mar 6, 1981 | Active |
| HILL-N-DALE SALES AND SERVICE STATION, INC.Monroe, CT · Dissolved | Monroe, CT | Corporation | Jul 6, 1981 | Dissolved |
| A & G AUTO PARTS, INC.Monroe, CT · Dissolved | Monroe, CT | Corporation | Sep 3, 1981 | Dissolved |