| HOWMET CORPORATIONLocation not reported, CT · Active | Location not reported, CT | Corporation | Mar 1, 1976 | Active |
| TURBINE COMPONENTS CORPORATIONBranford, CT · Active | Branford, CT | Corporation | Jun 8, 1970 | Active |
| CONNECTICUT ASSOCIATION FOR AMERICAN-SOVIET FRIENDSHIP, INC.Location not reported, CT · Forfeited | Location not reported, CT | Corporation | Jul 3, 1986 | Forfeited |
| HOWMET TRANSPORT SERVICES, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Dec 21, 1987 | Active |
| DESIGN BUILDERS & REMODELING, INC.Newtown, CT · Active | Newtown, CT | Corporation | Sep 10, 1991 | Active |
| HUCK INTERNATIONAL, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Jan 26, 1995 | Active |
| ADAMS HARDWARE, LLCNew Fairfield, CT · Forfeited | New Fairfield, CT | LLC | Aug 5, 1996 | Forfeited |
| EL EDUCATION, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Aug 8, 2000 | Active |
| ALL IN A DAY'S WORK LLCWest Granby, CT · Active | West Granby, CT | LLC | Jan 7, 2002 | Active |
| ORCHARD HILL ASSOCIATES, LLCEast Lyme, CT · Forfeited | East Lyme, CT | LLC | Apr 8, 2003 | Forfeited |
| HOWMET GLOBAL FASTENING SYSTEMS INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Jun 27, 2003 | Active |
| HOWMET CASTINGS & SERVICES, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Jan 12, 2005 | Active |
| NEW ENGLAND WINDOW & EXTERIOR COMPANY, LLCRidgefield, CT · Forfeited | Ridgefield, CT | LLC | May 6, 2009 | Forfeited |
| SAYBROOK REALTY PARTNERS, LLCWaterford, CT · Forfeited | Waterford, CT | LLC | May 21, 2010 | Forfeited |
| CULTURE OF PEACE CORPORATIONNew Haven, CT · Dissolved | New Haven, CT | Corporation | Sep 27, 2010 | Dissolved |
| APS HEALTHCARE BETHESDA, INC.Location not reported, CT · Withdrawn | Location not reported, CT | Corporation | May 11, 2011 | Withdrawn |
| ADAMS PLUMBING & HEATING, INC.Sherman, CT · Active | Sherman, CT | Corporation | Aug 16, 2012 | Active |
| DF INSTITUTE, LLCLocation not reported, CT · Active | Location not reported, CT | LLC | May 8, 2013 | Active |
| DAVE ADAMS WALLCOVERING, LLCStamford, CT · Forfeited | Stamford, CT | LLC | Jan 6, 2015 | Forfeited |
| FOX FARM BREWERY, LLCSalem, CT · Active | Salem, CT | LLC | Jul 30, 2015 | Active |
| N.S. HOLDINGS REAL ESTATE, LLCOld Saybrook, CT · Dissolved | Old Saybrook, CT | LLC | Jun 23, 2017 | Dissolved |
| THE COLLEGE FOR FINANCIAL PLANNING, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Oct 30, 2018 | Active |
| NCA REAL ESTATE, LLCNewtown, CT · Active | Newtown, CT | LLC | Feb 8, 2019 | Active |
| STORY REAL STUDIOS LLCNew Haven, CT · Active | New Haven, CT | LLC | Jan 16, 2020 | Active |
| CANDLEWOOD BREWING, INC.Sherman, CT · Active | Sherman, CT | Corporation | Jun 23, 2020 | Active |
| KAPLAN NORTH AMERICA, LLCLocation not reported, CT · Active | Location not reported, CT | LLC | Mar 2, 2021 | Active |
| EQHEALTH SOLUTIONS, LLCLocation not reported, CT · Withdrawn | Location not reported, CT | LLC | Apr 27, 2021 | Withdrawn |
| KAPLAN K12 LEARNING SERVICES, LLCLocation not reported, CT · Active | Location not reported, CT | LLC | Feb 1, 2022 | Active |
| WAKE UP THE GIANT, LLCOld Saybrook, CT · Active | Old Saybrook, CT | LLC | Mar 22, 2022 | Active |
| HOWMET AEROSPACE INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Mar 21, 2023 | Active |
| Halliburton Energy Services, Inc.Location not reported, CT · Active | Location not reported, CT | Corporation | Mar 10, 2025 | Active |
| Grownup Vending Company LLCOld Saybrook, CT · Active | Old Saybrook, CT | LLC | May 10, 2025 | Active |