| Lighthouse Point Lending, LLC, Delinquent November 1, 2008Location not reported, CO · Delinquent | Location not reported, CO | LLC | May 8, 2006 | Delinquent |
| PELHAM REALTY CORP.Ellington, CT · Dissolved | Ellington, CT | Corporation | Jan 4, 1960 | Dissolved |
| ALLYN TOOL COMPANYEllington, CT · Active | Ellington, CT | Corporation | Oct 15, 1974 | Active |
| AL'S PLUMBING, INC.Ellington, CT · Dissolved | Ellington, CT | Corporation | Mar 21, 1972 | Dissolved |
| ARROW DIVERSIFIED TOOLING, INC.Ellington, CT · Active | Ellington, CT | Corporation | Feb 18, 1970 | Active |
| BAHLER FARMS, INCORPORATEDEllington, CT · Active | Ellington, CT | Corporation | Feb 21, 1949 | Active |
| BETHANY WELDING, INC.Ellington, CT · Dissolved | Ellington, CT | Corporation | Mar 19, 1974 | Dissolved |
| BRYMILL CORPORATIONEllington, CT · Active | Ellington, CT | Corporation | Aug 28, 1967 | Active |
| FIGI ENTERPRISES, INC.Ellington, CT · Dissolved | Ellington, CT | Corporation | Jan 4, 1960 | Dissolved |
| E C A M REALTY, INC.Ellington, CT · Dissolved | Ellington, CT | Corporation | Jan 10, 1975 | Dissolved |
| ELLINGTON PURCHASING CORPORATION, THEEllington, CT · Active | Ellington, CT | Corporation | Dec 3, 1957 | Active |
| FBM HOLDING CO., INC.Ellington, CT · Dissolved | Ellington, CT | Corporation | Sep 13, 1973 | Dissolved |
| THE BROAD BROOK COMPANYEllington, CT · Forfeited | Ellington, CT | Corporation | Mar 2, 1972 | Forfeited |
| FLOW EQUIPMENT, INC.Ellington, CT · Dissolved | Ellington, CT | Corporation | Oct 24, 1973 | Dissolved |
| FRED SPIELMAN AND SONS INCORPORATEDEllington, CT · Dissolved | Ellington, CT | Corporation | Jan 2, 1968 | Dissolved |
| GRISWOLD TOOL & DIE COMPANY, INC.Ellington, CT · Forfeited | Ellington, CT | Corporation | Jul 15, 1966 | Forfeited |
| TETRAULT & SONS, INC.Ellington, CT · Dissolved | Ellington, CT | Corporation | Sep 30, 1968 | Dissolved |
| JOHN A. LIMBERGER, INC.Ellington, CT · Forfeited | Ellington, CT | Corporation | Jan 8, 1976 | Forfeited |
| KUP'S, INC.Ellington, CT · Active | Ellington, CT | Corporation | Jan 11, 1973 | Active |
| JGPF, INC.Ellington, CT · Dissolved | Ellington, CT | Corporation | Feb 4, 1977 | Dissolved |
| MOSER FARMS DAIRY, INCORPORATEDEllington, CT · Dissolved | Ellington, CT | Corporation | Jan 2, 1957 | Dissolved |
| OLENDER'S BODY SHOP, INCORPORATEDEllington, CT · Active | Ellington, CT | Corporation | Jul 1, 1968 | Active |
| RICE PACKAGING, INC.Ellington, CT · Active | Ellington, CT | Corporation | Sep 9, 1964 | Active |
| SAPOZNIK AVIATION, INC.Ellington, CT · Dissolved | Ellington, CT | Corporation | Sep 2, 1975 | Dissolved |
| SKIP'S SEPTIC TANK SERVICE, INC.Ellington, CT · Dissolved | Ellington, CT | Corporation | Apr 20, 1964 | Dissolved |
| THINK SNOWMOBILES, INC.Ellington, CT · Forfeited | Ellington, CT | Corporation | Oct 4, 1968 | Forfeited |
| TRI-S INCORPORATEDEllington, CT · Forfeited | Ellington, CT | Corporation | Apr 13, 1965 | Forfeited |
| VALLEY HOUSE, INC.Ellington, CT · Active | Ellington, CT | Corporation | Jul 23, 1959 | Active |
| VERNON DRUG, INCORPORATEDEllington, CT · Dissolved | Ellington, CT | Corporation | Jun 13, 1958 | Dissolved |
| ZAHNER'S, INC.Ellington, CT · Dissolved | Ellington, CT | Corporation | Mar 1, 1977 | Dissolved |
| ALPHA AND OMEGA, INC.Ellington, CT · Dissolved | Ellington, CT | Corporation | Oct 8, 1974 | Dissolved |
| CRYSTAL LAKE VOL. FIRE CO. NO. 2 OF ELLINGTON, INCORPORATED, THEEllington, CT · Active | Ellington, CT | Corporation | Mar 20, 1935 | Active |
| ELLINGTON GRANGE NO. 46, PATRONS OF HUSBANDRY, INCORPORATED, THEEllington, CT · Dissolved | Ellington, CT | Corporation | Dec 14, 1950 | Dissolved |
| ELLINGTON HISTORICAL SOCIETY, INC.Ellington, CT · Active | Ellington, CT | Corporation | May 26, 1967 | Active |
| ELLINGTON LITTLE LEAGUE, INC.Ellington, CT · Active | Ellington, CT | Corporation | Mar 7, 1968 | Active |
| ELLINGTON RIDGE COUNTRY CLUB, INCORPORATED, THEEllington, CT · Active | Ellington, CT | Corporation | Feb 13, 1958 | Active |
| ELLINGTON VOLUNTEER AMBULANCE CORPS, INCORPORATEDEllington, CT · Active | Ellington, CT | Corporation | Mar 7, 1977 | Active |
| ELLINGTON VOLUNTEER FIRE DEPARTMENT, INCORPORATED THEEllington, CT · Active | Ellington, CT | Corporation | Jun 19, 1929 | Active |
| HATHEWAY-MILLER POST NO. 62, THE AMERICAN LEGION, INCORPORATEDEllington, CT · Forfeited | Ellington, CT | Corporation | Jun 9, 1949 | Forfeited |
| NORTHERN CONNECTICUT RADIO CONTROL CLUB, INCORPORATEDEllington, CT · Active | Ellington, CT | Corporation | Oct 14, 1965 | Active |
| UNIVERSITY COUNCIL FOR VOCATIONAL EDUCATION, INC.Ellington, CT · Dissolved | Ellington, CT | Corporation | Dec 14, 1976 | Dissolved |
| ELLINGTON FOOTBALL LEAGUE, INC.Ellington, CT · Active | Ellington, CT | Corporation | Apr 29, 1966 | Active |
| CAMPBELL-KEUNE REALTY, INC.Ellington, CT · Active | Ellington, CT | Corporation | May 17, 1973 | Active |
| TRANS-TEK, INC.Ellington, CT · Active | Ellington, CT | Corporation | May 14, 1968 | Active |
| KUHNLY PLUMBING AND HEATING COMPANY THEEllington, CT · Active | Ellington, CT | Corporation | Jan 5, 1905 | Active |
| MIKE'S REPAIR SERVICE, INC.Ellington, CT · Forfeited | Ellington, CT | Corporation | Apr 2, 1979 | Forfeited |
| ACTION PACKAGING SYSTEMS, INC.Ellington, CT · Dissolved | Ellington, CT | Corporation | Apr 2, 1979 | Dissolved |
| SRQ, P.C.Ellington, CT · Dissolved | Ellington, CT | Corporation | Jul 1, 1976 | Dissolved |
| ALPHA AND OMEGA FOUNDATION, INC.Ellington, CT · Dissolved | Ellington, CT | Corporation | Aug 16, 1979 | Dissolved |
| WORDCOM, INCORPORATEDEllington, CT · Active | Ellington, CT | Corporation | Oct 11, 1979 | Active |