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| Rotary Club of Litchfield Morris Connecticut, Inc.Thomaston, CT · Active | Thomaston, CT | Corporation | Aug 29, 2025 | Active |
| The Alpha and Omega Emporium, LLCThomaston, CT · Active | Thomaston, CT | LLC | Aug 31, 2025 | Active |
| CT Consultants LLCThomaston, CT · Active | Thomaston, CT | LLC | Sep 2, 2025 | Active |
| Petano Enterprises LLCThomaston, CT · Active | Thomaston, CT | LLC | Sep 11, 2025 | Active |
| 3 Town Line Road LLCThomaston, CT · Active | Thomaston, CT | LLC | Sep 17, 2025 | Active |
| Thomaston PTA LLCThomaston, CT · Active | Thomaston, CT | LLC | Sep 23, 2025 | Active |
| Walsh Audio LLCThomaston, CT · Active | Thomaston, CT | LLC | Oct 15, 2025 | Active |
| Lotus Learning Center IncThomaston, CT · Active | Thomaston, CT | Corporation | Oct 16, 2025 | Active |
| ONEWELL HEALTH CARE OF CONNECTICUT LLCThomaston, CT · Active | Thomaston, CT | LLC | Oct 17, 2025 | Active |
| Petal by Petal LLCThomaston, CT · Active | Thomaston, CT | LLC | Oct 18, 2025 | Active |
| JKV Industries LLCThomaston, CT · Active | Thomaston, CT | LLC | Oct 21, 2025 | Active |
| Hychko Custom Homes LLCThomaston, CT · Active | Thomaston, CT | LLC | Oct 28, 2025 | Active |
| Country Livin Home Services LLCThomaston, CT · Active | Thomaston, CT | LLC | Oct 29, 2025 | Active |
| Estheticsbyev LLCThomaston, CT · Active | Thomaston, CT | LLC | Oct 30, 2025 | Active |
| LocalPRO House Painters LLCThomaston, CT · Active | Thomaston, CT | LLC | Nov 5, 2025 | Active |
| VERY CLEAN LLCThomaston, CT · Active | Thomaston, CT | LLC | Nov 5, 2025 | Active |
| BDM Heating & Cooling LLCThomaston, CT · Active | Thomaston, CT | LLC | Nov 6, 2025 | Active |
| CTC&G LLCThomaston, CT · Active | Thomaston, CT | LLC | Nov 10, 2025 | Active |
| OMAR S LITTLE RIDERS LLCThomaston, CT · Active | Thomaston, CT | LLC | Nov 14, 2025 | Active |
| Bridges Of Hope LLCThomaston, CT · Active | Thomaston, CT | LLC | Nov 17, 2025 | Active |
| Mini D's Sweet Treats & More LLCThomaston, CT · Active | Thomaston, CT | LLC | Nov 17, 2025 | Active |
| HD Service & Fabrication LLCThomaston, CT · Active | Thomaston, CT | LLC | Dec 2, 2025 | Active |
| Campville Motors Limited Liability CompanyThomaston, CT · Active | Thomaston, CT | LLC | Dec 7, 2025 | Active |
| Shingle Brothers LLCThomaston, CT · Active | Thomaston, CT | LLC | Dec 10, 2025 | Active |
| Winterfield LLCThomaston, CT · Active | Thomaston, CT | LLC | Dec 16, 2025 | Active |
| The Little Oven LLCThomaston, CT · Active | Thomaston, CT | LLC | Dec 22, 2025 | Active |
| Prime Sales LLCThomaston, CT · Active | Thomaston, CT | LLC | Jan 6, 2026 | Active |
| J's Fresh Bagels LLCThomaston, CT · Active | Thomaston, CT | LLC | Jan 12, 2026 | Active |
| Ash's Art Prints LLCThomaston, CT · Active | Thomaston, CT | LLC | Jan 14, 2026 | Active |
| Madden Shop LLCThomaston, CT · Active | Thomaston, CT | LLC | Feb 2, 2026 | Active |
| RenoSource LLCThomaston, CT · Active | Thomaston, CT | LLC | Jan 17, 2026 | Active |
| Ezdeals LLCThomaston, CT · Active | Thomaston, CT | LLC | Jan 18, 2026 | Active |
| EJS Excavating LLCThomaston, CT · Active | Thomaston, CT | LLC | Jan 29, 2026 | Active |
| Black Brook Barbers LLCThomaston, CT · Active | Thomaston, CT | LLC | Feb 10, 2026 | Active |
| Joseph Buchanan Holdings LLCThomaston, CT · Active | Thomaston, CT | LLC | Apr 19, 2026 | Active |
| The Tasty Empanada LLCThomaston, CT · Active | Thomaston, CT | LLC | Feb 12, 2026 | Active |
| Babies on Bayberry childcare &preschool L.L.C.Thomaston, CT · Active | Thomaston, CT | LLC | Feb 14, 2026 | Active |
| AWN PLUMBING LLCThomaston, CT · Active | Thomaston, CT | LLC | Feb 16, 2026 | Active |
| CLOCKTOWN PAINTING LLCThomaston, CT · Active | Thomaston, CT | LLC | Feb 19, 2026 | Active |
| Brignolo Ventures LLCThomaston, CT · Active | Thomaston, CT | LLC | Feb 28, 2026 | Active |
| SOTOS ON SITE WELDING LLCThomaston, CT · Active | Thomaston, CT | LLC | Mar 2, 2026 | Active |
| PrestigeDetailing L.L.C.Thomaston, CT · Dissolved | Thomaston, CT | LLC | Mar 7, 2026 | Dissolved |
| Big Bear Trucking LLCThomaston, CT · Active | Thomaston, CT | LLC | Mar 9, 2026 | Active |
| Thomaston Manufacturing Company LLCThomaston, CT · Active | Thomaston, CT | LLC | Mar 12, 2026 | Active |
| CHELSEA MARKET LLCThomaston, CT · Active | Thomaston, CT | LLC | Mar 13, 2026 | Active |
| Glow Moore Spray Tans LLCThomaston, CT · Active | Thomaston, CT | LLC | Mar 14, 2026 | Active |
| Snow Bear LLCThomaston, CT · Active | Thomaston, CT | LLC | Mar 16, 2026 | Active |
| GLAM Properties LLCThomaston, CT · Active | Thomaston, CT | LLC | Mar 18, 2026 | Active |
| Save Time Mobile Oil Change LLCThomaston, CT · Active | Thomaston, CT | LLC | Mar 23, 2026 | Active |