| KNIGHTS OF COLUMBUS HOME OF DANBURY, CONN. INC.Danbury, CT · Dissolved | Danbury, CT | Corporation | May 3, 1921 | Dissolved |
| LAKE WAUBEEKA ASSOCIATION, INCORPORATED, THEDanbury, CT · Active | Danbury, CT | Corporation | Jul 3, 1952 | Active |
| MID-WESTERN CONNECTICUT COUNCIL OF ALCOHOLISM, INC.Danbury, CT · Active | Danbury, CT | Corporation | Jun 9, 1972 | Active |
| THE MIRY BROOK VOLUNTEER FIRE COMPANYDanbury, CT · Active | Danbury, CT | Corporation | Dec 10, 1946 | Active |
| NORWALK HOSPITAL ASSOCIATION, THENorwalk, CT · Active | Norwalk, CT | Corporation | Jan 11, 1893 | Active |
| PARKVIEW MANOR CONDOMINIUM ASSOCIATION, INC.Danbury, CT · Forfeited | Danbury, CT | Corporation | Sep 15, 1975 | Forfeited |
| RAYMOND A. WALLING POST 149 BUILDING ASSOCIATION, INCORPORATEDDanbury, CT · Active | Danbury, CT | Corporation | Dec 26, 1945 | Active |
| REDDING OPEN LANDS, INC.Danbury, CT · Active | Danbury, CT | Corporation | Jul 22, 1969 | Active |
| SOCIETY OF PLASTICS ENGINEERS, INCORPORATEDDanbury, CT · Active | Danbury, CT | Corporation | May 5, 1954 | Active |
| SOUTHERN CONNECTICUT PAST MASTERS ASSOCIATION P OF H INC. THEDanbury, CT · Forfeited | Danbury, CT | Corporation | Dec 12, 1958 | Forfeited |
| SQUIRE HILL CONDOMINIUM NUMBER ONE, INC.Danbury, CT · Active | Danbury, CT | Corporation | Nov 15, 1973 | Active |
| UNITED JEWISH CENTER, OF DANBURY, INCORPORATED, THEDanbury, CT · Active | Danbury, CT | Corporation | Jul 13, 1926 | Active |
| VESPUCCI RECREATION CENTER INCORPORATEDDanbury, CT · Active | Danbury, CT | Corporation | Oct 20, 1943 | Active |
| WATER WITCH HOSE COMPANY, INCORPORATEDDanbury, CT · Merged | Danbury, CT | Corporation | Mar 4, 1921 | Merged |
| THE CENTER FOR EMPOWERMENT AND EDUCATION, INC.Danbury, CT · Active | Danbury, CT | Corporation | Dec 22, 1975 | Active |
| WOOSTER HOSE COMPANY NO. 5, INC., THEDanbury, CT · Merged | Danbury, CT | Corporation | Apr 27, 1929 | Merged |
| WOOSTER SCHOOL CORPORATION, THEDanbury, CT · Active | Danbury, CT | Corporation | Nov 7, 1925 | Active |
| CONCORDIA EDUCATIONAL AND BENEVOLENT SOCIETY, INC. THEDanbury, CT · Forfeited | Danbury, CT | Corporation | Feb 25, 1885 | Forfeited |
| GREATER DANBURY DENTAL SOCIETY, INC. THEDanbury, CT · Active | Danbury, CT | Corporation | Feb 11, 1959 | Active |
| JOSEPH A. TREADWELL POST #60 DEPARTMENT OF CONNECTICUT, THE AMERICAN LEGION, INCORPORATEDDanbury, CT · Active | Danbury, CT | Corporation | Mar 5, 1925 | Active |
| PADANARAM HOSE CO., NO.3,INC.Danbury, CT · Dissolved | Danbury, CT | Corporation | Sep 15, 1952 | Dissolved |
| ORTHOCONNECTICUT, PLLCDanbury, CT · Active | Danbury, CT | LLC | Nov 8, 2023 | Active |
| JOWDY - KANE FUNERAL HOME, INC.Danbury, CT · Active | Danbury, CT | Corporation | Nov 15, 1977 | Active |
| DANBURY COMMUNITY RADIO, INC.Danbury, CT · Active | Danbury, CT | Corporation | Nov 21, 1977 | Active |
| THE WRITER'S INSTITUTE, INC.Danbury, CT · Forfeited | Danbury, CT | Corporation | Nov 28, 1977 | Forfeited |
| P. F. E. ELECTRIC CORPORATIONDanbury, CT · Active | Danbury, CT | Corporation | Dec 28, 1977 | Active |
| DURKIN'S INCORPORATEDDanbury, CT · Active | Danbury, CT | Corporation | Oct 26, 1948 | Active |
| CANDLEWOOD OBSTETRIC-GYNECOLOGIC ASSOCIATES, P.C.Danbury, CT · Dissolved | Danbury, CT | Corporation | Jul 1, 1969 | Dissolved |
| COMMUNITY OF THE CROSS MINISTRIES, INC.Danbury, CT · Active | Danbury, CT | Corporation | Jan 6, 1978 | Active |
| ACTION MOTORS CORPORATIONDanbury, CT · Forfeited | Danbury, CT | Corporation | Mar 3, 1978 | Forfeited |
| DANBURY RADIOLOGICAL ASSOCIATES, P.C.Danbury, CT · Active | Danbury, CT | Corporation | Aug 20, 1970 | Active |
| G. ZIEGLER CUSTOM CARPET CLEANING, INC.Danbury, CT · Active | Danbury, CT | Corporation | Sep 28, 1977 | Active |
| JOEL E. BROOK, M.D., P.C.Danbury, CT · Active | Danbury, CT | Corporation | Aug 29, 1977 | Active |
| BURT HUMPHREY & SONS, INC.Danbury, CT · Forfeited | Danbury, CT | Corporation | Oct 20, 1977 | Forfeited |
| CARPETS ETCETERA, INC.Danbury, CT · Forfeited | Danbury, CT | Corporation | Oct 5, 1977 | Forfeited |
| A & S PROPERTIES INC.Danbury, CT · Active | Danbury, CT | Corporation | Oct 11, 1977 | Active |
| SCHAEFFLER AEROSPACE USA CORPORATIONDanbury, CT · Active | Danbury, CT | Corporation | Jun 4, 1942 | Active |
| STURDEVANT'S PHOTO/VIDEO CORP.Danbury, CT · Dissolved | Danbury, CT | Corporation | Mar 13, 1978 | Dissolved |
| DANBURY ATHLETIC YOUTH ORGANIZATION, INC.Danbury, CT · Active | Danbury, CT | Corporation | Mar 14, 1978 | Active |
| IMEXCO INC.Danbury, CT · Merged | Danbury, CT | Corporation | Mar 28, 1978 | Merged |
| LEE HARTELL CHAPTER #25 INC. DISABLED AMERICAN VETERANS DANBURY , CONN.Danbury, CT · Active | Danbury, CT | Corporation | Apr 19, 1954 | Active |
| L. W. MORRIS, INC.Danbury, CT · Dissolved | Danbury, CT | Corporation | May 25, 1978 | Dissolved |
| ALLERGY & ASTHMA ASSOCIATES, P.C.Danbury, CT · Dissolved | Danbury, CT | Corporation | May 31, 1978 | Dissolved |
| MODZELEWSKI'S AUTO BODY WORKS, INC.Danbury, CT · Active | Danbury, CT | Corporation | Jun 27, 1978 | Active |
| G. P. TOOL CO., INC.Danbury, CT · Active | Danbury, CT | Corporation | Jul 5, 1978 | Active |
| CONNECTICUT FAMILY ORTHOPEDICS, P.C.Danbury, CT · Dissolved | Danbury, CT | Corporation | Jul 12, 1978 | Dissolved |
| GAMMA INSTRUMENT & TOOL CO.Danbury, CT · Dissolved | Danbury, CT | Corporation | Jul 12, 1978 | Dissolved |
| DANBURY ALLERGY LABORATORY, INC.Danbury, CT · Dissolved | Danbury, CT | Corporation | Jul 24, 1978 | Dissolved |
| GRAND PRIX MOTORS, INC.Danbury, CT · Active | Danbury, CT | Corporation | Jul 26, 1978 | Active |
| LEE MACHINE, INC.Danbury, CT · Forfeited | Danbury, CT | Corporation | Jul 31, 1978 | Forfeited |