| GAGkn Aerospace New England | Manchester | CT | Transportation Equipment Manufacturing336412 | — | ◇ UNVERIFIED |
| GEGrand Embroidery, INC. | Oxford | CT | Printing and Related Support Activities323113 | 1-19 | ◇ UNVERIFIED |
 Green Mountain Products, INC | Norwalk | CT | Machinery Manufacturing333519 | — | ◇ UNVERIFIED |
| GPGreif Packaging | Windsor Locks | CT | Paper Manufacturing322214 | — | ◇ UNVERIFIED |
| HBHain Brothers Materials Company | Windham | CT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| HCHallmark Cards Distribution Center | Enfield | CT | Paper Manufacturing322230 | — | ◇ UNVERIFIED |
| HSHamilton Sundstrand | East Windsor | CT | Transportation Equipment Manufacturing336413 | — | ◇ UNVERIFIED |
| HBHartford Ball Company | Rocky Hill | CT | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| HIHartford Insurance Group Printing | Bloomfield | CT | Furniture and Related Product Manufacturing337211 | — | ◇ UNVERIFIED |
| HIHb Ives | New Haven | CT | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| HLHenkel Loctite Corporation | Rocky Hill | CT | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| HMHenlopen Manufacturing Company, INC. | Watertown | CT | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| HKH Krevit & CO Water Treatment Chemicals | New Haven | CT | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| HLHydrofera, LLC | Willimantic /c/ | CT | Miscellaneous Manufacturing339113 | — | ◇ UNVERIFIED |
| IAIndalex Aluminum Solutions | Berlin | CT | Primary Metal Manufacturing331316 | — | ◇ UNVERIFIED |
| IIIntergrated Industrial System I2s | Wallingford (yalesville) | CT | Machinery Manufacturing333516 | — | ◇ UNVERIFIED |
| IPInternational Paper Container Plant | Putnam | CT | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| KAKaman Aerospace | Moosup | CT | Transportation Equipment Manufacturing336411 | — | ◇ UNVERIFIED |
| KAKaman Aerospace Corp, Raymond Eng Operations | Middletown | CT | Electrical Equipment, Appliance & Component Manufacturing335314 | — | ◇ UNVERIFIED |
| KIKrell Industries LLC | Orange | CT | Computer and Electronic Product Manufacturing334310 | — | ◇ UNVERIFIED |
| LCLa Campesina Products LLC | Bridgeport | CT | Food Manufacturing311991 | 1-19 | ◇ UNVERIFIED |
| LCL C D Lighting INC | Milford | CT | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| MCMacdermid Closed | Waterbury | CT | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MEMacdermid Enthone INC | Orange | CT | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MCMahle Cylinder Division (former) | Trumbull | CT | Machinery Manufacturing333618 | — | ◇ UNVERIFIED |
| MIMallace Industries CORP. Dba Frismar | Clinton | CT | Miscellaneous Manufacturing339944 | — | ◇ UNVERIFIED |
 Marsam Metal Finishing | New Britain | CT | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| MCMartin Cabinet INC | Bristol | CT | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| MIMaxam Initiation Systems | Sterling | CT | Chemical Manufacturing325920 | — | ◇ UNVERIFIED |
| MTMelinta Therapeutics INC | New Haven | CT | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| MAMeliti Acoustics LLC | Southbury | CT | Miscellaneous Manufacturing339992 | — | ◇ UNVERIFIED |
| MMMerit Metal Finishing Company, INC. | Bridgeport | CT | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| MCMetalform Company, INC. | New Britain | CT | Fabricated Metal Product Manufacturing332116 | — | ◇ UNVERIFIED |
| MTMohegan Tribal Gaming Auth. Engineering | Uncasville | CT | Machinery Manufacturing333298 | — | ◇ UNVERIFIED |
| MCMorganite Crucible | North Haven | CT | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| MMMott Metallurgical CORP. | Plainville | CT | Fabricated Metal Product Manufacturing332117 | — | ◇ UNVERIFIED |
| MSM. Swift & Sons Gold Leaf | Hartford | CT | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| NSNational Sintered Alloys Incorporated | Clinton | CT | Fabricated Metal Product Manufacturing332119 | — | ◇ UNVERIFIED |
| NENew England Discovery Partners | Branford | CT | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
| NMNew Milford Ct Farms Compost | New Milford | CT | Chemical Manufacturing325314 | — | ◇ UNVERIFIED |
| NBNiagara Bottling, LLC | Bloomfield | CT | Beverage and Tobacco Product Manufacturing312112 | — | ◇ UNVERIFIED |
| NINlr, INC. | Manchester | CT | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| NCNorwalk Center LLC | Norwalk | CT | Computer and Electronic Product Manufacturing334511 | — | ◇ UNVERIFIED |
| NVNorwalk Vault CO | Bridgeport | CT | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| NRNorwich Ready Mix Concrete Plant Facility | Norwich | CT | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| NINutrico, INC | Bridgeport | CT | Chemical Manufacturing325311 | — | ◇ UNVERIFIED |
| OGO & G Industries, INC | New Milford | CT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| OIO&g Industries INC Beacon Falls | Beacon Falls | CT | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| OSOverhaul Support Services LLC a Delaware CORP | East Granby | CT | Transportation Equipment Manufacturing336412 | — | ◇ UNVERIFIED |
| OOOx Owner, LLC. | Uncasville | CT | Computer and Electronic Product Manufacturing334514 | — | ◇ UNVERIFIED |
