| FRANK ENDEAVORS LLCIndian Harbour Beach, FL · Active | Indian Harbour Beach, FL | LLC | May 10, 2018 | Active |
| STANDARD-KNAPP INC.New York, NY · Active | New York, NY | Corporation | Jan 3, 1985 | Active |
| WDJ CONSTRUCTION, INC.Location not reported, CO · Merged | Location not reported, CO | Corporation | Nov 16, 1993 | Merged |
| Blue Future Solutions LLC, Dissolved March 1, 2022Location not reported, CO · Voluntarily Dissolved | Location not reported, CO | LLC | Oct 9, 2012 | Voluntarily Dissolved |
| ANDERSON FARM SUPPLY INCORPORATEDPortland, CT · Active | Portland, CT | Corporation | Apr 17, 1947 | Active |
| C. S. B., INC.Portland, CT · Active | Portland, CT | Corporation | Jan 2, 1973 | Active |
| CONTINENTAL AUTO, LIMITEDPortland, CT · Dissolved | Portland, CT | Corporation | Nov 19, 1974 | Dissolved |
| DUFFORD DRILLING CO., INC.Portland, CT · Dissolved | Portland, CT | Corporation | Mar 7, 1958 | Dissolved |
| G.A. OLSON & SONS, INCORPORATEDPortland, CT · Active | Portland, CT | Corporation | Apr 22, 1953 | Active |
| GILDERSLEEVE PROFESSIONAL BUILDING, INC. THEPortland, CT · Dissolved | Portland, CT | Corporation | May 6, 1976 | Dissolved |
| TALLWOOD MANOR, INCORPORATEDPortland, CT · Dissolved | Portland, CT | Corporation | Oct 1, 1968 | Dissolved |
| HEBCC, INC.Portland, CT · Dissolved | Portland, CT | Corporation | Feb 3, 1966 | Dissolved |
| HULL HARBOR, INC.Portland, CT · Dissolved | Portland, CT | Corporation | Dec 29, 1970 | Dissolved |
| L. H. JACKSON & SON, INCORPORATEDPortland, CT · Dissolved | Portland, CT | Corporation | Dec 30, 1974 | Dissolved |
| MILARDO BROTHERS, INCORPORATEDPortland, CT · Forfeited | Portland, CT | Corporation | Sep 4, 1963 | Forfeited |
| PORTLAND BOAT WORKS, INCORPORATED THEPortland, CT · Dissolved | Portland, CT | Corporation | May 10, 1948 | Dissolved |
| PORTLAND CARE AND REHABILITATION CENTRE, INC.Portland, CT · Active | Portland, CT | Corporation | Oct 20, 1969 | Active |
| PORTLAND ELECTRIC COMPANY THEPortland, CT · Dissolved | Portland, CT | Corporation | Aug 31, 1966 | Dissolved |
| RPM INDUSTRIES, INC.Portland, CT · Active | Portland, CT | Corporation | Aug 23, 1967 | Active |
| SCHULTZ ELECTRIC, INC.Portland, CT · Active | Portland, CT | Corporation | Jan 5, 1965 | Active |
| CLONDALKIN PHARMA & HEALTHCARE, INC.Portland, CT · Merged | Portland, CT | Corporation | Oct 16, 1975 | Merged |
| SEAL-FLEX COMPANY, THEPortland, CT · Dissolved | Portland, CT | Corporation | Dec 2, 1954 | Dissolved |
| SOUTH WINDSOR PHARMACY, INCORPORATEDPortland, CT · Dissolved | Portland, CT | Corporation | Dec 23, 1964 | Dissolved |
| PROFESSIONAL SERVICE ASSOCIATES, INC.Portland, CT · Dissolved | Portland, CT | Corporation | May 11, 1970 | Dissolved |
| TEAM MARKETING CORPORATIONPortland, CT · Dissolved | Portland, CT | Corporation | Sep 16, 1974 | Dissolved |
| THOMAS BARROWS & SONS, LTD.Portland, CT · Active | Portland, CT | Corporation | Jan 3, 1975 | Active |
| VALLI CONSTRUCTION COMPANYPortland, CT · Active | Portland, CT | Corporation | Mar 8, 1972 | Active |
| WAVERLY PRINTING COMPANY, THEPortland, CT · Dissolved | Portland, CT | Corporation | Dec 1, 1954 | Dissolved |
| WESTBROOK PHARMACY, INC.Portland, CT · Dissolved | Portland, CT | Corporation | Jul 3, 1967 | Dissolved |
| WHITMORE BEHM TOOL COMPANY, INC.Portland, CT · Dissolved | Portland, CT | Corporation | Dec 29, 1961 | Dissolved |
| WILLIAM J. PETZOLD, INCORPORATEDPortland, CT · Active | Portland, CT | Corporation | Jun 6, 1956 | Active |
| CONNECTICUT CELLAR SAVERS, INC.Portland, CT · Dissolved | Portland, CT | Corporation | May 27, 1977 | Dissolved |
| NOYES SCHOOL OF RHYTHM FOUNDATION, INCORPORATED, THEPortland, CT · Active | Portland, CT | Corporation | Aug 7, 1957 | Active |
| GLASTONBURY YACHT CLUB INCORPORATED THEPortland, CT · Active | Portland, CT | Corporation | Mar 6, 1958 | Active |
| HEMLOCK GRANGE NO. 182 INCORPORATEDPortland, CT · Active | Portland, CT | Corporation | Jun 22, 1936 | Active |
| HILLSIDE ASSOCIATION,INCORPORATED, THEPortland, CT · Active | Portland, CT | Corporation | Mar 16, 1953 | Active |
| MATTABASSET CHAPTER 86 OF THE NORTH AMERICAN FAMILY CAMPERS ASSOCIATION, INC.Portland, CT · Forfeited | Portland, CT | Corporation | Sep 26, 1967 | Forfeited |
| MERIDEN MOTOR BOAT CLUB, INCORPORATEDPortland, CT · Active | Portland, CT | Corporation | Apr 8, 1909 | Active |
| MIDDLESEX AMATEUR RADIO SOCIETY INC. THEPortland, CT · Active | Portland, CT | Corporation | Nov 10, 1958 | Active |
| ORMONT POST, INCORPORATEDPortland, CT · Active | Portland, CT | Corporation | Jun 19, 1923 | Active |
| PORTLAND GARDEN CLUB, INC., THEPortland, CT · Active | Portland, CT | Corporation | Jun 23, 1965 | Active |
| PORTLAND HISTORICAL SOCIETY, INC., THEPortland, CT · Active | Portland, CT | Corporation | Dec 6, 1974 | Active |
| PORTLAND HOSE COMPANY NUMBER TWO VOLUNTEER FIREMEN'S RECREATIONAL ASSOCIATION INCORPORATED THEPortland, CT · Active | Portland, CT | Corporation | May 25, 1954 | Active |
| PORTLAND-RIVER VALLEY GARDEN CLUB, INC., THEPortland, CT · Active | Portland, CT | Corporation | Mar 27, 1967 | Active |
| REV. MASTERS, INC.Portland, CT · Active | Portland, CT | Corporation | Nov 17, 1967 | Active |
| SAINT FRANCIS SOCIETY, INCORPORATED THEPortland, CT · Dissolved | Portland, CT | Corporation | Sep 7, 1923 | Dissolved |
| GRACE COMMUNION INTERNATIONALPortland, CT · Active | Portland, CT | Corporation | Jul 13, 1970 | Active |
| RONCALLI INSTITUTE, INC. THEPortland, CT · Active | Portland, CT | Corporation | Oct 14, 1977 | Active |
| AIREX RUBBER PRODUCTS CORPORATIONPortland, CT · Active | Portland, CT | Corporation | Jun 30, 1943 | Active |
| BLOC FIL INC.Portland, CT · Forfeited | Portland, CT | Corporation | Nov 2, 1977 | Forfeited |