| SUNNY ACRES TRAILER PARK, INC.Wallingford, CT · Active | Wallingford, CT | Corporation | Dec 28, 1964 | Active |
| THOMAS E. FITZGERALD FUNERAL HOME INC.Wallingford, CT · Active | Wallingford, CT | Corporation | Feb 19, 1959 | Active |
| 376 SOUTH COLONY REALTY CORPORATIONWallingford, CT · Active | Wallingford, CT | Corporation | Apr 11, 1960 | Active |
| THURSTON FOODS, INC.Wallingford, CT · Active | Wallingford, CT | Corporation | Jul 5, 1961 | Active |
| TIMES FIBER COMMUNICATIONS, INC.Wallingford, CT · Active | Wallingford, CT | Corporation | Mar 17, 1977 | Active |
| TECO, INC.Wallingford, CT · Dissolved | Wallingford, CT | Corporation | Oct 26, 1948 | Dissolved |
| PETRUZELO TRAVEL AGENCY, INC.Wallingford, CT · Dissolved | Wallingford, CT | Corporation | Aug 5, 1969 | Dissolved |
| TRIPLE SPRINGS SPRING WATER COMPANYWallingford, CT · Dissolved | Wallingford, CT | Corporation | May 2, 1974 | Dissolved |
| TRI-STATE TIRE COMPANY, INC.Wallingford, CT · Active | Wallingford, CT | Corporation | Nov 26, 1973 | Active |
| UNHOLTZ-DICKIE CORPORATIONWallingford, CT · Active | Wallingford, CT | Corporation | Oct 27, 1958 | Active |
| VALENTI AUTO SALES, INCORPORATEDWallingford, CT · Dissolved | Wallingford, CT | Corporation | Mar 2, 1954 | Dissolved |
| WALLINGFORD AUTO COMPANY THEWallingford, CT · Active | Wallingford, CT | Corporation | Oct 27, 1958 | Active |
| WALLINGFORD HOME AND AUTO SUPPLIES, INCORPORATEDWallingford, CT · Dissolved | Wallingford, CT | Corporation | Jan 18, 1946 | Dissolved |
| WAYSIDE TOTS & TEENS INCORPORATEDWallingford, CT · Dissolved | Wallingford, CT | Corporation | Jan 6, 1975 | Dissolved |
| WHITE WAY LAUNDRY INCORPORATEDWallingford, CT · Active | Wallingford, CT | Corporation | Apr 26, 1976 | Active |
| CONSTRUCTION TECHNIQUES BY WRN, INC.Wallingford, CT · Forfeited | Wallingford, CT | Corporation | May 13, 1977 | Forfeited |
| YALESVILLE SANITATION SERVICE, INCORPORATEDYalesville, CT · Dissolved | Yalesville, CT | Corporation | Apr 1, 1960 | Dissolved |
| ZANDRI'S CATERING SERVICE, INC.Wallingford, CT · Dissolved | Wallingford, CT | Corporation | Oct 1, 1975 | Dissolved |
| AMERICAN LEGION, JOHN M. SIEDLICKI POST #187, INCORPORATEDWallingford, CT · Active | Wallingford, CT | Corporation | Mar 17, 1954 | Active |
| AMVETS, AMERICAN VETERANS, DEPARTMENT OF CONNECTICUT, INCORPORATEDWallingford, CT · Active | Wallingford, CT | Corporation | Sep 3, 1946 | Active |
| WALLINGFORD LAND TRUST, INC., THEWallingford, CT · Active | Wallingford, CT | Corporation | Jul 11, 1977 | Active |
| ARABIAN HORSE CLUB OF CONNECTICUT, INCORPORATEDWallingford, CT · Active | Wallingford, CT | Corporation | Apr 21, 1966 | Active |
| BMW CAR CLUB OF AMERICA CONNECTICUT VALLEY CHAPTER, INC.Wallingford, CT · Active | Wallingford, CT | Corporation | Nov 7, 1973 | Active |
| BIG BROTHERS/BIG SISTERS OF MERIDEN-WALLINGFORD, INC.Wallingford, CT · Merged | Wallingford, CT | Corporation | Jul 5, 1968 | Merged |
| COLUMBUS CLUB OF WALLINGFORD INCORPORATEDWallingford, CT · Forfeited | Wallingford, CT | Corporation | May 15, 1950 | Forfeited |
| COMUNIDAD HISPANA DE WALLINGFORD, INC.Wallingford, CT · Active | Wallingford, CT | Corporation | Mar 16, 1972 | Active |
| LEADINGAGE CONNECTICUT & RHODE ISLAND, INC.Wallingford, CT · Active | Wallingford, CT | Corporation | Jan 27, 1975 | Active |
| CONNECTICUT HOSPITAL ASSOCIATION, INCORPORATED, THEWallingford, CT · Active | Wallingford, CT | Corporation | Aug 19, 1963 | Active |
| CAPITAL FOR CHANGE, INC.Wallingford, CT · Active | Wallingford, CT | Corporation | Feb 8, 1967 | Active |
| CRIME PREVENTION ASSOCIATION OF CONNECTICUT, INC.Wallingford, CT · Forfeited | Wallingford, CT | Corporation | Apr 25, 1977 | Forfeited |
| CONNECTICUT TREE PROTECTIVE ASSOCIATION, INCORPORATED.Wallingford, CT · Active | Wallingford, CT | Corporation | Jan 14, 1955 | Active |
| CUTLER FAMILY CIRCLE, INCORPORATED, THEWallingfor, CT · Active | Wallingfor, CT | Corporation | Oct 30, 1941 | Active |
| EAST WALLINGFORD VOLUNTEER FIRE DEPARTMENT, INCORPORATEDWallingford, CT · Active | Wallingford, CT | Corporation | Aug 18, 1948 | Active |
| FAIRFIELD COUNTY CONSERVATION DISTRICT, INC.Wallingford, CT · Merged | Wallingford, CT | Corporation | Mar 29, 1971 | Merged |
| FARMS COUNTRY CLUB, INCORPORATED, THEWallingford, CT · Active | Wallingford, CT | Corporation | Jan 28, 1960 | Active |
| FEDERATED GARDEN CLUBS OF CONNECTICUT, INCORPORATED THEWallingford, CT · Active | Wallingford, CT | Corporation | Sep 25, 1929 | Active |
| RADIOLOGY ASSOCIATES, INC.Wallingford, CT · Dissolved | Wallingford, CT | Corporation | Jul 3, 1967 | Dissolved |
| THE CONNECTICUT HEALTHCARE RESEARCH AND EDUCATION FOUNDATION, INCORPORATEDWallingford, CT · Active | Wallingford, CT | Corporation | Feb 25, 1966 | Active |
| EASTERN STAR CHARITY FOUNDATION OF CONNECTICUT, INCORPORATED, THEWallingford, CT · Active | Wallingford, CT | Corporation | Jul 24, 1962 | Active |
| GRAND CHAPTER OF CONNECTICUT ORDER OF THE EASTERN STAR,INC.,THEWallingford, CT · Active | Wallingford, CT | Corporation | Jul 8, 1953 | Active |
| HAMDEN FIGURE SKATING ASSOCIATION, INC.Wallingford, CT · Active | Wallingford, CT | Corporation | Nov 15, 1971 | Active |
| HUNGARIAN COMMUNITY CLUB, INCORPORATEDWallingford, CT · Active | Wallingford, CT | Corporation | Dec 17, 1935 | Active |
| INSTRUMENT SOCIETY OF AMERICA CONNECTICUT VALLEY SECTION, INC.Wallingford, CT · Active | Wallingford, CT | Corporation | Nov 13, 1962 | Active |
| INTERNATIONAL MAINTENANCE INSTITUTE, INC.Wallingford, CT · Active | Wallingford, CT | Corporation | Dec 14, 1960 | Active |
| KIWANIS CLUB OF WALLINGFORD, CONNECTICUT,INCORPORATEDWallingford, CT · Active | Wallingford, CT | Corporation | May 26, 1954 | Active |
| LIBERO PENSIERO MUTUAL AID SOCIETY, INCORPORATED, THEWallingford, CT · Active | Wallingford, CT | Corporation | Jan 25, 1932 | Active |
| LIONS CLUB OF MERIDEN, CONNECTICUT, INCORPORATED, THEWallingford, CT · Active | Wallingford, CT | Corporation | Apr 16, 1936 | Active |
| JEDNOSC, LODGE 513 OF THE POLISH NATIONAL ALLIANCE, INC.Wallingford, CT · Forfeited | Wallingford, CT | Corporation | Jun 16, 1909 | Forfeited |
| MAJOR RAOUL LUFBERY POST NO 591 VETERANS OF FOREIGN WARS OF THE UNITED STATES, INCORPORATEDWallingford, CT · Active | Wallingford, CT | Corporation | Jun 3, 1952 | Active |
| MEETINGHOUSE VILLAGE CLUB, INC.Wallingford, CT · Active | Wallingford, CT | Corporation | Sep 24, 1973 | Active |