| SIGN SOLUTIONS & DESIGN INC.Garden City, NY · Active | Garden City, NY | Corporation | Jul 25, 2005 | Active |
| AMFRAN ESTATES, INC.Plainfield, CT · Active | Plainfield, CT | Corporation | Sep 18, 1973 | Active |
| CARPENTER & MARCHESSEAULT, INCORPORATEDPlainfield, CT · Dissolved | Plainfield, CT | Corporation | Jul 7, 1960 | Dissolved |
| CENTRAL SPORTS, INC.Plainfield, CT · Dissolved | Plainfield, CT | Corporation | Oct 29, 1974 | Dissolved |
| HI-WAY CAMPERS, INC.Plainfield, CT · Active | Plainfield, CT | Corporation | Mar 6, 1967 | Active |
| LYNN CORPORATIONPlainfield, CT · Active | Plainfield, CT | Corporation | Jun 22, 1972 | Active |
| MOSKOWITZ MOTOR TRANSPORTATION, INCORPORATEDPlainfield, CT · Forfeited | Plainfield, CT | Corporation | Jul 26, 1946 | Forfeited |
| PIZZARAMA OF PLAINFIELD, INC.Plainfield, CT · Active | Plainfield, CT | Corporation | Jul 27, 1976 | Active |
| PLAINFIELD SCRAP METAL, INC.Plainfield, CT · Dissolved | Plainfield, CT | Corporation | Aug 21, 1973 | Dissolved |
| PLAINFIELD TERMINAL WAREHOUSE, INCORPORATEDPlainfield, CT · Forfeited | Plainfield, CT | Corporation | Jul 26, 1946 | Forfeited |
| WALTER D. FONFARA, D.D.S.,P.C.Plainfield, CT · Active | Plainfield, CT | Corporation | Oct 17, 1973 | Active |
| THE AMERICAN LEGION AMBULANCE FUND, INCORPORATEDPlainfield, CT · Active | Plainfield, CT | Corporation | Aug 30, 1948 | Active |
| NORTHEASTERN CONNECTICUT COMMUNITY DEVELOPMENT CORPORATION, INC., THEPlainfield, CT · Active | Plainfield, CT | Corporation | Mar 7, 1973 | Active |
| PLAINFIELD FIRE COMPANY, NO 1, INCORPORATEDPlainfield, CT · Forfeited | Plainfield, CT | Corporation | Aug 18, 1926 | Forfeited |
| PLAINFIELD LITTLE LEAGUE, INCORPORATED, THEPlainfield, CT · Active | Plainfield, CT | Corporation | Mar 29, 1954 | Active |
| PLAINFIELD SOCIAL CLUB, INCORPORATED THEPlainfield, CT · Active | Plainfield, CT | Corporation | Apr 11, 1945 | Active |
| WILLIAM L. MERCIER POST, NO 5446, VETERANS OF FOREIGN WARS OF THE UNITED STATES, INCORPORATED THEPlainfield, CT · Active | Plainfield, CT | Corporation | May 8, 1947 | Active |
| SEETEEM COMPANYPlainfield, CT · Dissolved | Plainfield, CT | Corporation | Oct 21, 1977 | Dissolved |
| G.R., INC.Plainfield, CT · Dissolved | Plainfield, CT | Corporation | Feb 25, 1980 | Dissolved |
| TEX'S CORK & KEGS', INC.Plainfield, CT · Dissolved | Plainfield, CT | Corporation | Apr 18, 1980 | Dissolved |
| COCO'S, INC.Plainfield, CT · Forfeited | Plainfield, CT | Corporation | Sep 9, 1980 | Forfeited |
| VILLAGE MANOR HEALTH CARE, INC.Plainfield, CT · Forfeited | Plainfield, CT | Corporation | Feb 9, 1981 | Forfeited |
| B S T SYSTEMS, INC.Plainfield, CT · Active | Plainfield, CT | Corporation | Jan 7, 1983 | Active |
| AMFRAN INVESTMENTS, INC.Plainfield, CT · Dissolved | Plainfield, CT | Corporation | Jun 1, 1983 | Dissolved |
| BROOKLYN GENERAL REPAIR, INC.Plainfield, CT · Active | Plainfield, CT | Corporation | Sep 13, 1983 | Active |
| PLAINFIELD LIONS CLUB, INC.Plainfield, CT · Active | Plainfield, CT | Corporation | Feb 17, 1984 | Active |
| HILLDALE PARK HOMEOWNERS ASSOCIATION, INC.Plainfield, CT · Dissolved | Plainfield, CT | Corporation | Aug 10, 1984 | Dissolved |
| NEWPROD, INCORPORATEDPlainfield, CT · Forfeited | Plainfield, CT | Corporation | Oct 12, 1984 | Forfeited |
| H. J. PLANTE & SON, INC.Plainfield, CT · Dissolved | Plainfield, CT | Corporation | Oct 30, 1985 | Dissolved |
| PLAINFIELD YANKEE MOTOR INN, INC.Plainfield, CT · Dissolved | Plainfield, CT | Corporation | Jul 22, 1986 | Dissolved |
| ROMA IV TANNING AND BEAUTY SALON, LTD.Plainfield, CT · Dissolved | Plainfield, CT | Corporation | Oct 21, 1986 | Dissolved |
| SIDING STORE, INC. THEPlainfield, CT · Active | Plainfield, CT | Corporation | Oct 31, 1986 | Active |
| SCOPE TECHNOLOGY, INCORPORATEDPlainfield, CT · Active | Plainfield, CT | Corporation | Nov 21, 1986 | Active |
| PLAINFIELD WOODS, INC.Plainfield, CT · Dissolved | Plainfield, CT | Corporation | Feb 10, 1987 | Dissolved |
| INTERMARK FABRIC CORPORATIONPlainfield, CT · Dissolved | Plainfield, CT | Corporation | Sep 15, 1987 | Dissolved |
| SAVEWAY PROPANE GAS SERVICE, INC.Plainfield, CT · Merged | Plainfield, CT | Corporation | Dec 31, 1987 | Merged |
| LEMANDA CORPORATIONPlainfield, CT · Forfeited | Plainfield, CT | Corporation | Jan 21, 1988 | Forfeited |
| PLAINFIELD AUTO SALES, INC.Plainfield, CT · Dissolved | Plainfield, CT | Corporation | May 18, 1988 | Dissolved |
| AMTEC CORPORATIONPlainfield, CT · Active | Plainfield, CT | Corporation | Jun 14, 1988 | Active |
| PIPE LINE CONCRETE PUMPING, INC.Plainfield, CT · Dissolved | Plainfield, CT | Corporation | Feb 16, 1989 | Dissolved |
| THOMAS BUFFINGTON ASSOCIATES, INC.Plainfield, CT · Active | Plainfield, CT | Corporation | Apr 21, 1989 | Active |
| PLAINFIELD CHAMBER OF COMMERCE, INC.Plainfield, CT · Dissolved | Plainfield, CT | Corporation | May 17, 1989 | Dissolved |
| MACAT ENTERPRISES, INC.Plainfield, CT · Forfeited | Plainfield, CT | Corporation | May 3, 1990 | Forfeited |
| TIMEVALVE MANUFACTURING CO. INC.Plainfield, CT · Dissolved | Plainfield, CT | Corporation | Jun 29, 1990 | Dissolved |
| COLONIAL WOODS ASSOCIATION, INC.Plainfield, CT · Active | Plainfield, CT | Corporation | Oct 15, 1990 | Active |
| EAGLE DEVELOPMENT CORPORATIONPlainfield, CT · Dissolved | Plainfield, CT | Corporation | May 9, 1991 | Dissolved |
| PIMA, INCORPORATEDPlainfield, CT · Dissolved | Plainfield, CT | Corporation | Sep 30, 1991 | Dissolved |
| THREE ROWS DEVELOPMENT, INC.Plainfield, CT · Dissolved | Plainfield, CT | Corporation | Dec 24, 1991 | Dissolved |
| MARTEL WOODWORKING, INC.Plainfield, CT · Dissolved | Plainfield, CT | Corporation | Mar 24, 1993 | Dissolved |
| CARTWRIGHT CORPORATION THEPlainfield, CT · Dissolved | Plainfield, CT | Corporation | Mar 30, 1993 | Dissolved |