| FRFluoropolymer Resources INC | Willimantic | CT | Primary Metal Manufacturing331423 | — | ◇ UNVERIFIED |
| FCFreeport-mcmoran Copper Rod Plant | Norwich | CT | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| GCGordon Corporation | Southington | CT | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| IAIndalex Aluminum Solutions | Berlin | CT | Primary Metal Manufacturing331316 | — | ◇ UNVERIFIED |
| RFRepublic Foil, INC | Danbury | CT | Primary Metal Manufacturing331315 | — | ◇ UNVERIFIED |
| SFStanley-bostitch Fastening Systems | Clinton | CT | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| TMThe Miller CO | Meriden | CT | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| TMTitanium Metals CORP | East Windsor | CT | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| ABACMT Bristol | Bristol | CT | Primary Metal Manufacturing331524 | 1-19 | ◐ LIKELY ACTIVE |
| APAstroseal Products Mfg. Corporation | Chester | CT | Primary Metal Manufacturing331313 | — | ◐ LIKELY ACTIVE |
| CACt32 Ametek Smp Wallingford | Wallingford | CT | Primary Metal Manufacturing331491 | 20-99 | ◐ LIKELY ACTIVE |
| LCLoos & Co., Inc. Pomfret | Pomfret Center | CT | Primary Metal Manufacturing331222 | 100-499 | ◐ LIKELY ACTIVE |
| MIMinteq International | Canaan | CT | Primary Metal Manufacturing331491 | 20-99 | ◐ LIKELY ACTIVE |
| WTWieland Thin Strip | Water | CT | Primary Metal Manufacturing331420 | 20-99 | ◐ LIKELY ACTIVE |
| 5P5n Plus INC | Bridgeport | CT | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| AWAble Wire Company | Naugatuck | CT | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
 American Wire CORP | Sandy Hook | CT | Primary Metal Manufacturing331318 | — | ◇ UNVERIFIED |
| ACAnsonia Copper & Brass INC - Ansonia | Ansonia | CT | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| ACAnsonia Copper & Brass INC - Waterbury | Waterbury | CT | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| BABaobab Asset Management LLC | Greenwich | CT | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| BIBhs Industries, Limited | Wallingford | CT | Primary Metal Manufacturing331522 | — | ◇ UNVERIFIED |
 Carpenter Technology Corporation | Bridgeport | CT | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| EMEagle Manufacturing Company, INC. | Colchester | CT | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| EDEyelet Design, INC | Waterbury | CT | Primary Metal Manufacturing331318 | — | ◇ UNVERIFIED |
| GCGeneral Cable Industries | Dayville | CT | Primary Metal Manufacturing331422 | — | ◇ UNVERIFIED |
| HAH & A Steel LLC | Brooklyn | CT | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| IPIndustrial Precious Metals LLC | Wallingford | CT | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| JCJ.E.T. Corporation | Bridgeport | CT | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| JCJ.E.T. Corporation | Bridgeport | CT | Primary Metal Manufacturing331523 | — | ◇ UNVERIFIED |
| MMMinteq/specialty Minerals INC | North Canaan | CT | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| NWNutmeg Wire, INC. | Baltic | CT | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| PGParamount Glassworks, LLC | Woodstock | CT | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| PSPcc Structurals | Groton | CT | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| SMSiri Manufacturing Company, INC. | Danielson | CT | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| TETachwa Enterprises INC. | Hamden | CT | Primary Metal Manufacturing331315 | — | ◇ UNVERIFIED |
| TPTheis Precision Steel CORP | Bristol | CT | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| TSTorrey S Crane | Plantsville | CT | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| WRWaterbury Rolling Mills | Waterbury | CT | Primary Metal Manufacturing331411 | — | ◇ UNVERIFIED |
| WIWestfalia, INC | Bristol | CT | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| WWWire Works, INC. | Milford | CT | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
