Cornell-carr Co., INC. | Monroe | 20–99 | ● ACTIVE |
Advanced Graphics, Incorporated | Stratford | — | ● ACTIVE |
Glyne Manufacturing Co., INC. | Stratford | — | ● ACTIVE |
| MBMcmellon Bros., Incorporated | Stratford | 20–99 | ● ACTIVE |
Moore Tool Company, INC. | Bridgeport | 20–99 | ● ACTIVE |
| SPSpec Plating INC | Bridgeport | — | ● ACTIVE |
Straton Industries, INC. | Stratford | — | ● ACTIVE |
| TSThe Superior Plating Company | Southport | — | ● ACTIVE |
Enfield Technologies LLC | Trumbull | — | ● ACTIVE |
Frank Roth CO INC | Stratford | — | ● ACTIVE |
Horberg Industries, INC. | Bridgeport | — | ● ACTIVE |
Malux Machine LLC | Stratford | — | ● ACTIVE |
| NENew England Grinding & Machining LLC | Bridgeport | — | ● ACTIVE |
New Resources Group, INC. | Bridgeport | — | ● ACTIVE |
| PGPequot Group, LLC | Bridgeport | — | ● ACTIVE |
Sturm Ruger & Company INC | Southport | — | ● ACTIVE |
| AHAmerican Heat Treating | Monroe | 20–99 | ◐ LIKELY ACTIVE |
| BNBiomerics Nle LLC | Monroe | — | ◐ LIKELY ACTIVE |
| USU S Chrome Corporation | Stratford | 20–99 | ◐ LIKELY ACTIVE |
| SSSeymour Sheridan INC | Monroe | 20–99 | ◐ LIKELY ACTIVE |
| CAConnecticut Anodizing & Finishing CO INC | Bridgeport | — | ◐ LIKELY ACTIVE |
| JCJelliff Corporation | Southport | — | ◇ UNVERIFIED |
| AFAluminum Finishing Company | Bridgeport | — | ◐ LIKELY ACTIVE |
| LMLacey Manufacturing CO INC | Bridgeport | — | ◐ LIKELY ACTIVE |
| RPReliable Plating & Polishing Co., INC. | Bridgeport | — | ◐ LIKELY ACTIVE |
| MMMerit Metal Finishing Company, INC. | Bridgeport | — | ◇ UNVERIFIED |
| SGSporting Goods Properties | Bridgeport | — | ◇ UNVERIFIED |
| BNBiomerics NLE-CT | Monroe | 100–499 | ◐ LIKELY ACTIVE |
| EIEngineers Ironworks, LLC | Bridgeport | — | ◐ LIKELY ACTIVE |
| HPH&s Prototyping INC. | Bridgeport | — | ◐ LIKELY ACTIVE |
| LSLennox Steel LLC | Trumbull | — | ◐ LIKELY ACTIVE |
| NGNext Generation Construction, LLC | Stratford | — | ◐ LIKELY ACTIVE |
| RBRoller Bearing Company of America, INC. | Fairfield | — | ◐ LIKELY ACTIVE |
| WPWestportPrecision partners LLC | Stratford, CT | 20–99 | ◐ LIKELY ACTIVE |
| BMBlase Manufacturing | Stratford | — | ◇ UNVERIFIED |
| APAll Phase Steel Works, LLC | Bridgeport | — | ◇ UNVERIFIED |
| AHAtlas Hobbing and Tool Company | Bridgeport | — | ◇ UNVERIFIED |
| BTBaron Technology, INC. | Monroe | — | ◇ UNVERIFIED |
| BIBridgeport Insulated Wire Company | Bridgeport | — | ◇ UNVERIFIED |
| BMBri Metal Works, INC. | Bridgeport | — | ◇ UNVERIFIED |
| CKCoppermill Kitchen LLC | Fairfield | — | ◇ UNVERIFIED |
| DIDelta-Ray Industries, Inc. | Bridgeport | — | ◇ UNVERIFIED |
| ECEast Coast Sheet Metal, LLC | Trumbull | — | ◇ UNVERIFIED |
| FHFirst Heating & Cooling LLC | Bridgeport | — | ◇ UNVERIFIED |
| JMJC Mectec, LLC | Stratford | — | ◇ UNVERIFIED |
| NPNorwalk Powdered Metals INC. | Bridgeport | — | ◇ UNVERIFIED |
| NPNorwalk Powered Metals Incorporated | Bridgeport | — | ◇ UNVERIFIED |
| PFP&c Fence Company INC. | Bridgeport | — | ◇ UNVERIFIED |
| PHProgressive Hydraulics Incorporated | Stratford | — | ◇ UNVERIFIED |
| RHRbc Heim Bearing Company | Fairfield | — | ◇ UNVERIFIED |