| SSSpecialty Saw inc | Simsbury | 20–99 | ◐ LIKELY ACTIVE |
 Specialty Steel Treating - CT | East Granby | 20–99 | ◐ LIKELY ACTIVE |
| SISpv Industries LLC | West Hartford | — | ◐ LIKELY ACTIVE |
| SBStanley Black & Decker, INC. | New Britain | — | ◐ LIKELY ACTIVE |
| TMTolland Machine Company LLC | Vernon Rockville | — | ◐ LIKELY ACTIVE |
| TSTransit Systems, INC | Plainville | — | ◐ LIKELY ACTIVE |
| WTWindsor Telling | Windsor | 20–99 | ◐ LIKELY ACTIVE |
| AMAnmor Machining Company, LLC | New Britain | — | ◇ UNVERIFIED |
| FMForestville Machine CO | Plainville | — | ◇ UNVERIFIED |
| HPHygrade Precision Technologies, INC. | Plainville | — | ◇ UNVERIFIED |
| 5M50 Milford Street Ext Plainville Ct, LLC | Plainville | — | ◇ UNVERIFIED |
| AGA-1 Gutter & Fence, LLC | Hartford | — | ◇ UNVERIFIED |
| AMAbsolute Machine Co., LLC | Canton | — | ◇ UNVERIFIED |
| ABAccurate Brazing of Ct, LLC | New Britain | — | ◇ UNVERIFIED |
| AWAlloy Welding | Plainville | — | ◇ UNVERIFIED |
| ASAmerican Standard Company, INC. | Southington | — | ◇ UNVERIFIED |
| AAvatar | East Windsor | — | ◇ UNVERIFIED |
| BIBanner Industries -windsor | Windsor | — | ◇ UNVERIFIED |
| BHBerone Holdings LLC | Somers | — | ◇ UNVERIFIED |
| BHBritton Holdings Limited Liability Company | Bloomfield | — | ◇ UNVERIFIED |
| CBCarroll Bullets, INC. | Stafford Springs | — | ◇ UNVERIFIED |
| CRCmc Rebar-ct-plainville | Plainville | — | ◇ UNVERIFIED |
| CICompanion Industries, INC. | Southington | — | ◇ UNVERIFIED |
| CMConnecticut Metalworks, LLC | Newington | — | ◇ UNVERIFIED |
| CSConnecticut Shotgun Manufacturing Company | New Britain | — | ◇ UNVERIFIED |
| CSConnecticut Stamping & Bending | New Britain | — | ◇ UNVERIFIED |
| CMCreed Monarch, INC. | New Britain | — | ◇ UNVERIFIED |
| CHCT Hone Inc | Plainville | — | ◇ UNVERIFIED |
| CMCt Metal Structures, LLC | Farmington | — | ◇ UNVERIFIED |
| DCDarly Custom Technology, INC. | Windsor | — | ◇ UNVERIFIED |
| DPDs Precision Machine | Vernon Rockville | — | ◇ UNVERIFIED |
| DLDuctco, LLC | Bloomfield | — | ◇ UNVERIFIED |
| DEDw Enterprise | Simsbury | — | ◇ UNVERIFIED |
| EAE a Patten | Columbia | — | ◇ UNVERIFIED |
| EMEastern Metal Treating | Enfield | — | ◇ UNVERIFIED |
| ECEngelhard CORP | East Windsor | — | ◇ UNVERIFIED |
| EPExperimental Prototype Products, INC. | South Windsor | — | ◇ UNVERIFIED |
| FFF. F. Screw Products INC | Southington | — | ◇ UNVERIFIED |
| FCFluid Control Solutions, LLC | Plainville | — | ◇ UNVERIFIED |
| FMForrest Machine, INC. | Rocky Hill | — | ◇ UNVERIFIED |
| GMG&M Machine Co., LLC | New Britain | — | ◇ UNVERIFIED |
| GMGemco Manufacturing Company, INC | Southington | — | ◇ UNVERIFIED |
| GHGlasco Heating & Air Conditioning, INC. | South Windsor | — | ◇ UNVERIFIED |
| GMGmt Manufacturing Company, INC. | Plantsville | — | ◇ UNVERIFIED |
| HPHeleniak Properties, LLC | Plainville | — | ◇ UNVERIFIED |
| HMHurley Metal Fabrication & Mfg, LLC | Windsor | — | ◇ UNVERIFIED |
 Hydro Honing Laboratories | East Hartford | — | ◇ UNVERIFIED |
| IIIda Installations, INC. | Southington | — | ◇ UNVERIFIED |
| IFIdeal Forging CORP | Southington | — | ◇ UNVERIFIED |
| JWJarosz Welding CO. INC. | Hartford | — | ◇ UNVERIFIED |
