| TRUMBULL MEMORIAL POST NO. 10059, VETERANS OF FOREIGN WARS OF THE UNITED STATES, INCORPORATEDTrumbull, CT · Active | Trumbull, CT | Corporation | Nov 1, 1971 | Active |
| TRUMBULL POLICE BENEVOLENT ASSOCIATION, INCORPORATEDTrumbull, CT · Active | Trumbull, CT | Corporation | Jan 15, 1952 | Active |
| TRUMBULL POST NO. 141, AMERICAN LEGION, INCORPORATEDTrumbull, CT · Active | Trumbull, CT | Corporation | May 23, 1945 | Active |
| TRUMBULL VOLUNTEER FIRE COMPANY NUMBER 1, INCORPORATEDTrumbull, CT · Active | Trumbull, CT | Corporation | Sep 17, 1925 | Active |
| ST. VINCENT'S SPECIAL NEEDS CENTER, INC.Trumbull, CT · Active | Trumbull, CT | Corporation | Feb 17, 1955 | Active |
| THE WOMEN'S COUNCIL OF EASTERN ORTHODOX CHRISTIAN CHURCHES OF CONNECTICUT, INC.Trumbull, CT · Dissolved | Trumbull, CT | Corporation | Dec 7, 1961 | Dissolved |
| COMMUNITY CHAMBER ORCHESTRA, INC.Trumbull, CT · Forfeited | Trumbull, CT | Corporation | Dec 15, 1958 | Forfeited |
| GREATER BRIDGEPORT BOARD OF REALTORS, INC., THETrumbull, CT · Active | Trumbull, CT | Corporation | Feb 9, 1951 | Active |
| NICHOLS IMPROVEMENT ASSOCIATION, INCORPORATED THETrumbull, CT · Active | Trumbull, CT | Corporation | Jan 11, 1893 | Active |
| LIL & JULIE ROSENBERG FOUNDATION, INC.Trumbull, CT · Active | Trumbull, CT | Corporation | Jun 14, 1963 | Active |
| HOLY TRINITY LUTHERAN CHURCH INCORPORATEDTrumbull, CT · Active | Trumbull, CT | Corporation | Nov 15, 1965 | Active |
| SAUNDERS CONSTRUCTION CO., INC.Trumbull, CT · Dissolved | Trumbull, CT | Corporation | Dec 2, 1977 | Dissolved |
| TARGET SALES MANAGEMENT, INC.Trumbull, CT · Dissolved | Trumbull, CT | Corporation | Dec 12, 1977 | Dissolved |
| SILLIMAN CONDOMINIUM ASSOCIATION, INC.Trumbull, CT · Active | Trumbull, CT | Corporation | Jan 30, 1978 | Active |
| CHRISTIAN HERITAGE SCHOOL, INC.Trumbull, CT · Active | Trumbull, CT | Corporation | Dec 21, 1976 | Active |
| RANDCO CORPORATIONTrumbull, CT · Dissolved | Trumbull, CT | Corporation | Feb 21, 1978 | Dissolved |
| MANSFIELD CONSTRUCTION, INCORPORATEDTrumbull, CT · Active | Trumbull, CT | Corporation | Mar 10, 1978 | Active |
| DANBURY WEIMAN HOLDINGS, INC.Trumbull, CT · Dissolved | Trumbull, CT | Corporation | Sep 15, 1977 | Dissolved |
| R.J.D. ASSOCIATES, INC.Trumbull, CT · Dissolved | Trumbull, CT | Corporation | Apr 5, 1978 | Dissolved |
| A. A. SERVICES, INCORPORATEDTrumbull, CT · Active | Trumbull, CT | Corporation | Jun 20, 1978 | Active |
| J.D.M. BUILDERS, INC.Trumbull, CT · Dissolved | Trumbull, CT | Corporation | Jul 3, 1978 | Dissolved |
| HELICOPTER SUPPORT, INC.Trumbull, CT · Active | Trumbull, CT | Corporation | Jul 7, 1978 | Active |
| FAIRFIELD MANOR CONDOMINIUM ASSOCIATION, INC.Trumbull, CT · Active | Trumbull, CT | Corporation | Jul 24, 1978 | Active |
| BRAKE FIRE PROTECTION, INC.Trumbull, CT · Active | Trumbull, CT | Corporation | Aug 14, 1978 | Active |
| BIFF'S PACKAGE STORE, INCORPORATEDTrumbull, CT · Forfeited | Trumbull, CT | Corporation | May 31, 1961 | Forfeited |
| MEADOWS CONDOMINIUM ASSOCIATION, INC. THETrumbull, CT · Active | Trumbull, CT | Corporation | Nov 2, 1978 | Active |
| DAY TRIPPERS,INC.Trumbull, CT · Dissolved | Trumbull, CT | Corporation | Jan 26, 1979 | Dissolved |
| TITLE CENTER, INC. THETrumbull, CT · Merged | Trumbull, CT | Corporation | Mar 7, 1979 | Merged |
| CHRIST REDEEMER EVANGELICAL LUTHERAN CHURCHTrumbull, CT · Active | Trumbull, CT | Corporation | Mar 19, 1979 | Active |
| ACCUSYNC MEDICAL RESEARCH CORPORATIONTrumbull, CT · Active | Trumbull, CT | Corporation | Jun 1, 1979 | Active |
| ZIMMER AND ZIMMER, P.C.Trumbull, CT · Active | Trumbull, CT | Corporation | Jun 12, 1979 | Active |
| GARY J. RADER, D.C., P.C.Trumbull, CT · Dissolved | Trumbull, CT | Corporation | Jul 5, 1979 | Dissolved |
| G & G SHOPS OF NEW ENGLAND, INC.Trumbull, CT · Merged | Trumbull, CT | Corporation | Aug 27, 1979 | Merged |
| DATAPREP, INC.Trumbull, CT · Dissolved | Trumbull, CT | Corporation | Oct 22, 1979 | Dissolved |
| LAWRENCE D. SILVERMAN, INC.Trumbull, CT · Forfeited | Trumbull, CT | Corporation | Oct 22, 1979 | Forfeited |
| SANDRA SALVO SILVERMAN READING CENTER, INC. THETrumbull, CT · Forfeited | Trumbull, CT | Corporation | Oct 29, 1979 | Forfeited |
| BRIDGEPORT, CONNECTICUT BRANCH INCORPORATED OF THE AMERICAN ASSOCIATION OF UNIVERSITY WOMEN THETrumbull, CT · Active | Trumbull, CT | Corporation | May 7, 1925 | Active |
| TRUMBULL WOMAN'S CLUB, INC. THETrumbull, CT · Dissolved | Trumbull, CT | Corporation | Sep 16, 1958 | Dissolved |
| THE NEW YORK TIMES COMPANY MAGAZINE GROUP, INC.Trumbull, CT · Revoked | Trumbull, CT | Corporation | Jan 28, 1980 | Revoked |
| DAVEY CONDOMINIUM ASSOCIATION, INC.Trumbull, CT · Active | Trumbull, CT | Corporation | Jan 14, 1980 | Active |
| FAWN HOLLOW CONDOMINIUM UNIT OWNERS ASSOCIATION, INC.Trumbull, CT · Active | Trumbull, CT | Corporation | Feb 20, 1980 | Active |
| LEVCO TECH INC.Trumbull, CT · Active | Trumbull, CT | Corporation | May 19, 1980 | Active |
| WALLACH INTERNATIONAL SURGICAL DEVICES, INC.Trumbull, CT · Merged | Trumbull, CT | Corporation | Jul 11, 1980 | Merged |
| WALLACH SURGICAL DEVICES, INC.Trumbull, CT · Merged | Trumbull, CT | Corporation | Jul 11, 1980 | Merged |
| VINMOR POOL COMPANY, INC.Trumbull, CT · Active | Trumbull, CT | Corporation | Nov 21, 1980 | Active |
| JN SHOPS, INC.Trumbull, CT · Revoked | Trumbull, CT | Corporation | Jan 26, 1981 | Revoked |
| ADULT & PEDIATRIC DERMATOLOGY SPECIALISTS, P.C.Trumbull, CT · Active | Trumbull, CT | Corporation | Jan 26, 1981 | Active |
| VISTA VIEW CONDOMINIUM ASSOCIATION, INC.Trumbull, CT · Active | Trumbull, CT | Corporation | Mar 20, 1981 | Active |
| OFFICE SERVICES OF CONNECTICUT, INC.Trumbull, CT · Dissolved | Trumbull, CT | Corporation | Apr 27, 1981 | Dissolved |
| ARCHITECTURAL FABRIC SYSTEMS, INC.Trumbull, CT · Forfeited | Trumbull, CT | Corporation | Jun 1, 1981 | Forfeited |