| DISABLED AMERICAN VETERANS, WEST HAVEN CHAPTER NO 18, INCORPORATEDWest. Haven, CT · Dissolved | West. Haven, CT | Corporation | Jul 11, 1940 | Dissolved |
| HUGHSON-MILLER POST #71 BUILDING ASSOCIATION INCORPORATED THEWest. Haven, CT · Dissolved | West. Haven, CT | Corporation | May 26, 1923 | Dissolved |
| RAY TELLIER MIDGET FOOTBALL LEAGUE OF WEST HAVEN, INCORPORATED, THEWest. Haven, CT · Active | West. Haven, CT | Corporation | Feb 4, 1966 | Active |
| WEST HAVEN CHAMBER OF COMMERCE INCORPORATED THEWest. Haven, CT · Forfeited | West. Haven, CT | Corporation | Dec 12, 1912 | Forfeited |
| WEST HAVEN COMMUNITY HOUSE ASSOCIATION, INCORPORATED THEWest. Haven, CT · Active | West. Haven, CT | Corporation | Aug 25, 1941 | Active |
| WEST HAVEN YACHT CLUB, INC.West. Haven, CT · Active | West. Haven, CT | Corporation | Feb 23, 1944 | Active |
| SANITARY EQUIPMENT CO. INC.West. Haven, CT · Active | West. Haven, CT | Corporation | Aug 24, 1977 | Active |
| WEST HAVEN CHILD DEVELOPMENT CENTER, INC.West. Haven, CT · Active | West. Haven, CT | Corporation | Dec 22, 1977 | Active |
| AMODIO AND SONS, INC.West. Haven, CT · Active | West. Haven, CT | Corporation | Apr 4, 1978 | Active |
| EDER-GOODMAN, LLCWest. Haven, CT · Active | West. Haven, CT | LLC | Dec 24, 2024 | Active |
| AUTO-TEK CO., INC.West. Haven, CT · Dissolved | West. Haven, CT | Corporation | May 11, 1978 | Dissolved |
| J.K.D. TAE KWON DO KARATE, INC.West. Haven, CT · Forfeited | West. Haven, CT | Corporation | May 30, 1978 | Forfeited |
| NEW HAVEN BUS SERVICE, INC.West. Haven, CT · Dissolved | West. Haven, CT | Corporation | Jul 7, 1978 | Dissolved |
| SANITARY MAINTENANCE SERVICE, INC.West. Haven, CT · Dissolved | West. Haven, CT | Corporation | Jan 7, 1960 | Dissolved |
| YORK AUTO CLINIC, INC.West. Haven, CT · Active | West. Haven, CT | Corporation | Jul 19, 1978 | Active |
| WALTER'S OF BRANFORD, INC.West. Haven, CT · Dissolved | West. Haven, CT | Corporation | Jul 21, 1978 | Dissolved |
| WHITING PRODUCTS, INC.West. Haven, CT · Forfeited | West. Haven, CT | Corporation | Mar 22, 1972 | Forfeited |
| ANTHONY GRILLO REALTY, INCORPORATEDWest. Haven, CT · Dissolved | West. Haven, CT | Corporation | Aug 8, 1977 | Dissolved |
| R. & R., INCORPORATED OF NEW HAVENWest. Haven, CT · Dissolved | West. Haven, CT | Corporation | Sep 21, 1978 | Dissolved |
| M & R FROSTED FOOD CO., INC.West. Haven, CT · Dissolved | West. Haven, CT | Corporation | Aug 22, 1977 | Dissolved |
| CITY POINT CONSTRUCTION CO., INC.West. Haven, CT · Active | West. Haven, CT | Corporation | Mar 13, 1964 | Active |
| WEST HAVEN ACADEMY OF KARATE, INC.West. Haven, CT · Active | West. Haven, CT | Corporation | Oct 16, 1978 | Active |
| P & J ENTERPRISE, INC.West. Haven, CT · Dissolved | West. Haven, CT | Corporation | Oct 16, 1978 | Dissolved |
| AUDIO VIDEO CONCEPTS, INC.West. Haven, CT · Dissolved | West. Haven, CT | Corporation | Dec 26, 1978 | Dissolved |
| JEWISH HOME BUILDING FUND CORP. THEWest. Haven, CT · Dissolved | West. Haven, CT | Corporation | Jan 23, 1979 | Dissolved |
| POLAR COOLER MFG., INC.West. Haven, CT · Dissolved | West. Haven, CT | Corporation | Jul 12, 1960 | Dissolved |
| HAFSCO, INC.West. Haven, CT · Active | West. Haven, CT | Corporation | Sep 20, 1934 | Active |
| STAR CONTAINER RECYCLING AND PROCESSING COMPANY, INC.West. Haven, CT · Active | West. Haven, CT | Corporation | May 25, 1979 | Active |
| DANIELS AGENCY INCORPORATED THEWest. Haven, CT · Dissolved | West. Haven, CT | Corporation | Jan 21, 1932 | Dissolved |
| TEMPLE BUILDING ASSOCIATION INCORPORATEDWest. Haven, CT · Active | West. Haven, CT | Corporation | May 6, 1903 | Active |
| GINDEE'S CORPORATIONWest. Haven, CT · Active | West. Haven, CT | Corporation | Sep 21, 1979 | Active |
| JAMES F. CASEY D.D.S. P.C.West. Haven, CT · Dissolved | West. Haven, CT | Corporation | Sep 24, 1979 | Dissolved |
| WESTWOODS MOTORS, INC.West. Haven, CT · Active | West. Haven, CT | Corporation | Oct 3, 1979 | Active |
| TECHNICAL AUTOMATION, INC.West. Haven, CT · Dissolved | West. Haven, CT | Corporation | Nov 1, 1979 | Dissolved |
| UNIVERSITY OF NEW HAVEN, INCORPORATEDWest. Haven, CT · Active | West. Haven, CT | Corporation | May 13, 1926 | Active |
| SOUNDENTAL ASSOCIATES, P.C.West. Haven, CT · Active | West. Haven, CT | Corporation | Dec 3, 1979 | Active |
| UNION PARK ASSOCIATION, INC.West. Haven, CT · Active | West. Haven, CT | Corporation | Dec 19, 1979 | Active |
| BROTHERS OF HOLY CROSS OF THE EASTERN PROVINCE OF THE UNITED STATES OF AMERICA, INC.West. Haven, CT · Dissolved | West. Haven, CT | Corporation | Nov 6, 1964 | Dissolved |
| MIRTO, KETAINECK & DICROSTA, P.C.West. Haven, CT · Dissolved | West. Haven, CT | Corporation | Feb 4, 1980 | Dissolved |
| BREAKER BEACH CONDOMINIUM ASSOCIATION, INC.West. Haven, CT · Active | West. Haven, CT | Corporation | Feb 6, 1980 | Active |
| ORANGE BLOSSOM CONDOMINIUM ASSOCIATION, INC.West. Haven, CT · Active | West. Haven, CT | Corporation | Mar 18, 1980 | Active |
| CELLINI DESIGN JEWELERS, INC.West. Haven, CT · Dissolved | West. Haven, CT | Corporation | Mar 21, 1980 | Dissolved |
| LAWRENCE MESSINA, D.D.S., P.C.West. Haven, CT · Dissolved | West. Haven, CT | Corporation | Jun 6, 1977 | Dissolved |
| MATAM, INC.New Haven, CT · Active | New Haven, CT | Corporation | May 7, 1980 | Active |
| COMMONS CONDOMINIUM, INC. THEWest. Haven, CT · Active | West. Haven, CT | Corporation | May 22, 1980 | Active |
| LITTLE GUY DISCOUNT RENT-A-CAR, INC.West. Haven, CT · Dissolved | West. Haven, CT | Corporation | Jun 24, 1980 | Dissolved |
| PASTICCERIA, INC.West. Haven, CT · Forfeited | West. Haven, CT | Corporation | Jun 25, 1980 | Forfeited |
| EDGEWOOD REALTY COMPANY THEWest. Haven, CT · Forfeited | West. Haven, CT | Corporation | Jun 7, 1950 | Forfeited |
| INDEPENDENT MOVEMENT FOR POSITIVE ACTION (IMPACT), INC. THEWest. Haven, CT · Forfeited | West. Haven, CT | Corporation | Sep 23, 1980 | Forfeited |
| BOB'S AUTO CENTER, INC.West. Haven, CT · Forfeited | West. Haven, CT | Corporation | Oct 16, 1980 | Forfeited |