| ONECO FIRE COMPANY NUMBER 1, INCORPORATEDOneco, CT · Active | Oneco, CT | Corporation | Jul 11, 1941 | Active |
| STERLING HISTORICAL SOCIETY, INC.Oneco, CT · Active | Oneco, CT | Corporation | May 23, 1980 | Active |
| BAYHEAD CORPORATIONOneco, CT · Dissolved | Oneco, CT | Corporation | Jan 29, 1987 | Dissolved |
| ANTAEUS INC.Oneco, CT · Dissolved | Oneco, CT | Corporation | Jul 20, 1987 | Dissolved |
| LITHO PRINT EAST, INC.Oneco, CT · Forfeited | Oneco, CT | Corporation | Feb 27, 1996 | Forfeited |
| ONE CO ENTERTAINMENT LLCOneco, CT · Dissolved | Oneco, CT | LLC | Mar 28, 1996 | Dissolved |
| GULL INDUSTRIES, LLCOneco, CT · Active | Oneco, CT | LLC | Jul 5, 1996 | Active |
| RANDI'S SERVICE STATION, INC.Oneco, CT · Forfeited | Oneco, CT | Corporation | Jul 18, 1997 | Forfeited |
| ATM ELECTRIC, LLCOneco, CT · Active | Oneco, CT | LLC | Nov 24, 1998 | Active |
| SINKO ENTERPRISES, LLCOneco, CT · Dissolved | Oneco, CT | LLC | Jan 11, 2000 | Dissolved |
| MARRIOTT GREENHOUSES, LLCOneco, CT · Forfeited | Oneco, CT | LLC | Apr 7, 2000 | Forfeited |
| SCOTT D STONE TRUCKING, LLCOneco, CT · Forfeited | Oneco, CT | LLC | Jul 14, 2000 | Forfeited |
| NAVAN CORPORATIONOneco, CT · Dissolved | Oneco, CT | Corporation | Jul 28, 2000 | Dissolved |
| ROCHA HOME IMPROVEMENT, LLCOneco, CT · Dissolved | Oneco, CT | LLC | Nov 14, 2000 | Dissolved |
| RSG & SON PLUMBING & HEATING, LLCOneco, CT · Forfeited | Oneco, CT | LLC | Jan 9, 2001 | Forfeited |
| INTERSALES UNLIMITED, LLCOneco, CT · Dissolved | Oneco, CT | LLC | Aug 17, 2001 | Dissolved |
| QUAKER FARM ASSOCIATES LLCQuaker Hill, CT · Forfeited | Quaker Hill, CT | LLC | Aug 27, 2001 | Forfeited |
| DIVERSIFIED LIQUORS, LLCOneco, CT · Forfeited | Oneco, CT | LLC | Dec 10, 2001 | Forfeited |
| BOUTWELL PALLET, LLCOneco, CT · Forfeited | Oneco, CT | LLC | Dec 18, 2001 | Forfeited |
| J.C. FENCE, LLCOneco, CT · Forfeited | Oneco, CT | LLC | Oct 4, 2002 | Forfeited |
| SEAMAN & BERGERON, LLCOneco, CT · Forfeited | Oneco, CT | LLC | Dec 18, 2003 | Forfeited |
| G & R CYCLES LLCOneco, CT · Forfeited | Oneco, CT | LLC | May 3, 2004 | Forfeited |
| MARCHESSEAULT CUSTOM WOODWORKING LLCOneco, CT · Dissolved | Oneco, CT | LLC | Nov 1, 2004 | Dissolved |
| BUCKLEY QUARTER HORSES, LLCOneco, CT · Dissolved | Oneco, CT | LLC | Nov 16, 2004 | Dissolved |
| CENTRAL REAL ESTATE, LLCOneco, CT · Dissolved | Oneco, CT | LLC | Dec 30, 2004 | Dissolved |
| MORNINGWOOD PROPERTY, LLCOneco, CT · Dissolved | Oneco, CT | LLC | Apr 5, 2006 | Dissolved |
| D AND K, LLCOneco, CT · Active | Oneco, CT | LLC | Apr 26, 2006 | Active |
| BUSTER BUCKLEY QUARTER HORSES, LLCOneco, CT · Forfeited | Oneco, CT | LLC | May 19, 2006 | Forfeited |
| LAMB MECHANICAL, LLCQuaker Hill, CT · Forfeited | Quaker Hill, CT | LLC | Jun 8, 2006 | Forfeited |
| FRANKLIN SERVICES CORPOneco, CT · Forfeited | Oneco, CT | Corporation | Jan 5, 2007 | Forfeited |
| ONECO METALWORKS, LLCOneco, CT · Dissolved | Oneco, CT | LLC | Apr 2, 2007 | Dissolved |
| ABSOLUTE ROOFING & HOME IMPROVEMENTS LLCOneco, CT · Forfeited | Oneco, CT | LLC | Apr 9, 2007 | Forfeited |
| ANGELS AMONG US LLCOneco, CT · Forfeited | Oneco, CT | LLC | May 8, 2007 | Forfeited |
| SANCTUARY SPA, LLCOneco, CT · Dissolved | Oneco, CT | LLC | Aug 30, 2007 | Dissolved |
| ANIMAL DC, LLCOneco, CT · Forfeited | Oneco, CT | LLC | Sep 14, 2007 | Forfeited |
| THOMAS WELLNESS, LLCStonnington, CT · Dissolved | Stonnington, CT | LLC | Oct 20, 2008 | Dissolved |
| FALLS CREEK FARM, LLCOneco, CT · Withdrawn | Oneco, CT | LLC | Oct 30, 2008 | Withdrawn |
| JAY SHRI KRISHNA, LLCOneco, CT · Dissolved | Oneco, CT | LLC | Nov 30, 2009 | Dissolved |
| JT CONSTRUCTION AND HOME DESIGN LLCOneco, CT · Forfeited | Oneco, CT | LLC | Aug 2, 2011 | Forfeited |
| EQUINE UNWIND LLCOneco, CT · Forfeited | Oneco, CT | LLC | Mar 9, 2015 | Forfeited |
| USA-IBYS, LLCOneco, CT · Active | Oneco, CT | LLC | Sep 1, 2015 | Active |
| DEERFIELD PROPERTIES, LLCOneco, CT · Dissolved | Oneco, CT | LLC | Oct 8, 2015 | Dissolved |
| 1148 PLAINFIELD PIKE, LLCSterling, CT · Active | Sterling, CT | LLC | Dec 9, 2015 | Active |
| SKMILLER PERFORMANCE HORSES LLCOneco, CT · Forfeited | Oneco, CT | LLC | Jun 28, 2017 | Forfeited |
| SIMPLICITY HOME SERVICES, LLCOneco, CT · Active | Oneco, CT | LLC | Oct 9, 2018 | Active |
| HOMECARE QUALITY CONSULTS, LLCOneco, CT · Active | Oneco, CT | LLC | Feb 19, 2020 | Active |
| STERLING ORGANIC FARM LLCOneco, CT · Withdrawn | Oneco, CT | LLC | Feb 26, 2020 | Withdrawn |
| STERLING BROOK DOODLES INCOneco, CT · Active | Oneco, CT | Corporation | Apr 19, 2021 | Active |
| Sterling Flower Farm LLCOneco, CT · Active | Oneco, CT | LLC | Dec 28, 2022 | Active |
| spiritual bondings LLCOneco, CT · Active | Oneco, CT | LLC | Mar 3, 2023 | Active |