| ADAlgonquin Div Rea Magnetic Wires | Guilford | CT | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| NSNucor Steel Connecticut, INC. | Wallingford | CT | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| USUlbrich Specialty Strip Mill | Wallingford | CT | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| CMCombined Metals of Chicago | Bristol | CT | Primary Metal Manufacturing331221 | 1-19 | ◐ LIKELY ACTIVE |
| GMGbc Metals LLC Somers Thin Strip | Waterbury | CT | Primary Metal Manufacturing331420 | — | ◐ LIKELY ACTIVE |
| WIWyman-gordon Investment Castings, Incorporated | Groton | CT | Primary Metal Manufacturing331512 | — | ◐ LIKELY ACTIVE |
| ASAmetek Specialty Metal Product | Wallingford | CT | Primary Metal Manufacturing331318 | — | ◐ LIKELY ACTIVE |
| MIMrm Industries Meriden Facility | Meriden | CT | Primary Metal Manufacturing331111 | — | ◐ LIKELY ACTIVE |
| HEHoward Engineering CO | Naugatuck | CT | Primary Metal Manufacturing331511 | 1-19 | ◐ LIKELY ACTIVE |
| ALAllegheny Ludlum Corporation | Waterbury | CT | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| PCPQ Controls, Inc | Bristol | CT | Primary Metal Manufacturing331491 | 20-99 | ◐ LIKELY ACTIVE |
| RSReliable Silver | Naugatuck | CT | Primary Metal Manufacturing331410 | 20-99 | ◐ LIKELY ACTIVE |
| TFTaylor & Fenn CO | Windsor | CT | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| UAUnited Aluminum CORP | North Haven | CT | Primary Metal Manufacturing331315 | 100-499 | ◐ LIKELY ACTIVE |
| USUnited Steel Inc | East Hartford | CT | Primary Metal Manufacturing331111 | 100-499 | ◐ LIKELY ACTIVE |
| 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 |