| MCMacton CORP | Oxford | CT | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| MTMastercraft Tool and Machine | Southington | CT | Fabricated Metal Product Manufacturing332116 | 1-19 | ◐ LIKELY ACTIVE |
| MPMatthew's Printing INC. | Wallingford | CT | Printing and Related Support Activities323110 | 1-19 | ◐ LIKELY ACTIVE |
| MIMerrill Ind | Ellington | CT | Paper Manufacturing322211 | 20-99 | ◐ LIKELY ACTIVE |
| MCMica CORP | Shelton | CT | Chemical Manufacturing325510 | 20-99 | ◐ LIKELY ACTIVE |
| MIMicrobest INC | Waterbury | CT | Fabricated Metal Product Manufacturing332721 | 100-499 | ◐ LIKELY ACTIVE |
| MMMohawk Manufacturing CO | Middletown | CT | Fabricated Metal Product Manufacturing332119 | 1-19 | ◐ LIKELY ACTIVE |
| NENew England Tool & Automation, Inc. | New Britain | CT | Machinery Manufacturing333517 | 1-19 | ◐ LIKELY ACTIVE |
| NSNortheastern Shaped Wire INC | Southington | CT | Primary Metal Manufacturing331222 | 1-19 | ◐ LIKELY ACTIVE |
| NSNucor Steel Connecticut, INC. | Wallingford | CT | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| PTPlastic Tool Systems, INC. | Milford | CT | Plastics and Rubber Products Manufacturing326199 | 1-19 | ◐ LIKELY ACTIVE |
| PLPlatt & LaBonia Company LLC | Waterbury | CT | Fabricated Metal Product Manufacturing332999 | 1-19 | ◐ LIKELY ACTIVE |
| PRPolymer Resources LTD | Farmington | CT | Chemical Manufacturing325991 | 100-499 | ◐ LIKELY ACTIVE |
| PMPrecision Method, LLC | Wolcott | CT | Fabricated Metal Product Manufacturing332721 | 1-19 | ◐ LIKELY ACTIVE |
| QIQtran, INC. | Milford | CT | Electrical Equipment, Appliance & Component Manufacturing335311 | 20-99 | ◐ LIKELY ACTIVE |
| RERaf Electronic Hardware | Seymour | CT | Fabricated Metal Product Manufacturing332721 | 100-499 | ◐ LIKELY ACTIVE |
| RIRapid Industries Inc. | Essex | CT | Chemical Manufacturing325998 | 1-19 | ◐ LIKELY ACTIVE |
| RBResonetics Bethel | Bethel | CT | Miscellaneous Manufacturing339112 | 500+ | ◐ LIKELY ACTIVE |
| RTRfs Technologies, INC. | Meriden | CT | Computer and Electronic Product Manufacturing334220 | 100-499 | ◐ LIKELY ACTIVE |
| RTRipley Tools | Cromwell | CT | Fabricated Metal Product Manufacturing332216 | 20-99 | ◐ LIKELY ACTIVE |
| SISeidel, INC. | Waterbury | CT | Fabricated Metal Product Manufacturing332813 | 100-499 | ◐ LIKELY ACTIVE |
| SShelterlogic | Watertown | CT | Textile Product Mills314910 | 100-499 | ◐ LIKELY ACTIVE |
| SISpirol International Corporation | Danielson | CT | Fabricated Metal Product Manufacturing332721 | 500+ | ◐ LIKELY ACTIVE |
| SIStandard-knapp, INC. | Portland | CT | Machinery Manufacturing333993 | 20-99 | ◐ LIKELY ACTIVE |
| SCStony Creek Brewery | Branford | CT | Beverage and Tobacco Product Manufacturing312140 | 1-19 | ◐ LIKELY ACTIVE |
| SPSyn-mar Products INC. | Ellington | CT | Chemical Manufacturing325991 | 20-99 | ◐ LIKELY ACTIVE |
| TUTelefunken Usa, LLC | South Windsor | CT | Computer and Electronic Product Manufacturing334310 | 20-99 | ◐ LIKELY ACTIVE |
| TCThe Charles J. Angelo Manufacturing Group, LLC | Manchester | CT | Machinery Manufacturing333998 | 20-99 | ◐ LIKELY ACTIVE |
| TRThe Rogers Manufacturing Company | Rockfall | CT | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| TITrumpf INC | Farmington | CT | Machinery Manufacturing333513 | 500+ | ◐ LIKELY ACTIVE |
| TCTurbine Components Corporation | Branford | CT | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
| TCTurbine Controls, LLC | Bloomfield | CT | Transportation Equipment Manufacturing336412 | — | ◐ LIKELY ACTIVE |
| USUlbrich Specialty Strip Mill | Wallingford | CT | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| UCUnited Centerless Grinding & Thread Rolling | East Hartford | CT | Fabricated Metal Product Manufacturing332722 | 20-99 | ◐ LIKELY ACTIVE |
| WSWaterbury Screw Machine Products | Waterbury | CT | Fabricated Metal Product Manufacturing332721 | 20-99 | ◐ LIKELY ACTIVE |
| WPWestport Precision LLC | Stratford | CT | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |
| ACA-1 Chrome & Polishing CORP | Newington | CT | Fabricated Metal Product Manufacturing332813 | 1-19 | ◐ LIKELY ACTIVE |
| ADAmerican Distilling & Manufacturing, Inc-treatment Plant | East Hampton | CT | Chemical Manufacturing325411 | 20-99 | ◐ LIKELY ACTIVE |
| EAEastern Awning Systems, INC | Watertown | CT | Fabricated Metal Product Manufacturing332117 | 1-19 | ◐ LIKELY ACTIVE |
Idex Health & Science LLC | Bristol | CT | Plastics and Rubber Products Manufacturing326199 | — | ◐ LIKELY ACTIVE |
| PPPalladin Precision Products | Waterbury | CT | Fabricated Metal Product Manufacturing332721 | 20-99 | ◐ LIKELY ACTIVE |
| PFPlastic Forming Company, Inc., the | Woodbridge | CT | Plastics and Rubber Products Manufacturing326121 | 20-99 | ◐ LIKELY ACTIVE |
| PPPrecision Plating Site | Vernon Rockville | CT | Fabricated Metal Product Manufacturing332813 | 1-19 | ◐ LIKELY ACTIVE |
| PMProspect Machine Products, INC | Prospect | CT | Fabricated Metal Product Manufacturing332116 | 1-19 | ◐ LIKELY ACTIVE |
| SPSpecialty Printing, LLC | East Windsor | CT | Paper Manufacturing322221 | 100-499 | ◐ LIKELY ACTIVE |
| ALAerocision LLC | Chester | CT | Transportation Equipment Manufacturing336412 | 20-99 | ◐ LIKELY ACTIVE |
| AFA. Fiorillo & CO LLC | Milldale | CT | Food Manufacturing311824 | 1-19 | ◐ LIKELY ACTIVE |
| ANAhlstrom-munksjo Nonwovens LLC | Windsor Locks | CT | Textile Mills313230 | — | ◐ LIKELY ACTIVE |
| AIAirflo Instrument Company, the | Glastonbury | CT | Computer and Electronic Product Manufacturing334519 | 1-19 | ◐ LIKELY ACTIVE |
| AEAltek Electronics INC | Torrington | CT | Computer and Electronic Product Manufacturing334418 | 100-499 | ◐ LIKELY ACTIVE |