| GHGlasco Heating & Air Conditioning, INC. | South Windsor | CT | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| GLG L C Associates | Thomaston | CT | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| GMGmt Manufacturing Company, INC. | Plantsville | CT | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| GMGreer Manufacturing, INC. | Prospect | CT | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| GTGregor Technologies, LLC | Torrington | CT | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| HBH B Ives CO (harrow Products) | New Haven | CT | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| HIHdb, INC. | Winsted | CT | Fabricated Metal Product Manufacturing332510 | — | ◇ UNVERIFIED |
| HPHeleniak Properties, LLC | Plainville | CT | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| HHHolzknecht Holding, LLC | Putnam | CT | Fabricated Metal Product Manufacturing332722 | — | ◇ UNVERIFIED |
| HMHurley Metal Fabrication & Mfg, LLC | Windsor | CT | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
 Hydro Honing Laboratories | East Hartford | CT | Fabricated Metal Product Manufacturing332811 | — | ◇ UNVERIFIED |
| IIIda Installations, INC. | Southington | CT | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| IMIndependent Metalworx, Inc. | Ansonia | CT | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| IMIndependent Metalworx, Inc. | Ansonia | CT | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| IHInfinity Holdings Company LLC | Terryville | CT | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| ISInfinity Stone, INC. | Waterbury | CT | Fabricated Metal Product Manufacturing332216 | — | ◇ UNVERIFIED |
| ISInfinity Surfacing & Refinishing LLC | Terryville | CT | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| ILIron&Oak LLC | Bethel | CT | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| JMJared Manufacturing CO. INC. | Norwalk | CT | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| JWJarosz Welding CO. INC. | Hartford | CT | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| JMJC Mectec, LLC | Stratford | CT | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| JIJoma, INC. | Waterbury | CT | Fabricated Metal Product Manufacturing332119 | — | ◇ UNVERIFIED |
 Joval Machine Co., INC. | Wallingford | CT | Fabricated Metal Product Manufacturing332116 | — | ◇ UNVERIFIED |
| KEKace Enterprises LLC | Hamden | CT | Fabricated Metal Product Manufacturing332613 | — | ◇ UNVERIFIED |
| KIKaste Industrial Machine Sales, Inc. | Enfield | CT | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| KMKeeney Manufacturing CO INC | Newington | CT | Fabricated Metal Product Manufacturing332913 | — | ◇ UNVERIFIED |
| KMKovil Manufacturing, LLC | Cheshire | CT | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| LML & M Manufacturing Company, INC. | New Hartford | CT | Fabricated Metal Product Manufacturing332611 | — | ◇ UNVERIFIED |
| LWL. W. Seecamp Company, INC. | Milford | CT | Fabricated Metal Product Manufacturing332994 | — | ◇ UNVERIFIED |
| MAManaged Air Systems | Plantsville | CT | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| MFMarlin Firearms CO | North Haven | CT | Fabricated Metal Product Manufacturing332994 | — | ◇ UNVERIFIED |
 Marsam Metal Finishing Company, INC. | New Britain | CT | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| MPMdm Products, LLC | Milford | CT | Fabricated Metal Product Manufacturing332311 | — | ◇ UNVERIFIED |
| MMMeadow Manufacturing, Inc. | Berlin | CT | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| MMMega Mechanical Services, LLC | Glastonbury | CT | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| MPMelting Point Welding & Fabrication, Inc. | Killingly | CT | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| MLMetalCraft LLC | Bantam | CT | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| MFMetal Finishing Techs INC | Forestville | CT | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| MPMetallurgical Processing, INC. | New Britain | CT | Fabricated Metal Product Manufacturing332811 | — | ◇ UNVERIFIED |
| MLM-fab LLC | Torrington | CT | Fabricated Metal Product Manufacturing332611 | — | ◇ UNVERIFIED |
| MCMicrofab Company LLC | Oxford | CT | Fabricated Metal Product Manufacturing332510 | — | ◇ UNVERIFIED |
| MMMicro Matic, INC. | Naugatuck | CT | Fabricated Metal Product Manufacturing332116 | — | ◇ UNVERIFIED |
| MLMidget Louver | Milford | CT | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| MMMikco Manufacturing Technology, INC. | Wallingford | CT | Fabricated Metal Product Manufacturing332721 | — | ◇ UNVERIFIED |
| MAMilford Automatics INC | Milford | CT | Fabricated Metal Product Manufacturing332721 | — | ◇ UNVERIFIED |
| MPMirror Polishing & Plating CO INC | Waterbury | CT | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| MCMontec Corporation | Glastonbury | CT | Fabricated Metal Product Manufacturing332111 | — | ◇ UNVERIFIED |
| MCMott Corporation | Farmington | CT | Fabricated Metal Product Manufacturing332117 | — | ◇ UNVERIFIED |
| MRM & R Manufacturing Inc. | Newington | CT | Fabricated Metal Product Manufacturing332216 | — | ◇ UNVERIFIED |
| MIMw Industries, INC. | Waterbury | CT | Fabricated Metal Product Manufacturing332722 | — | ◇ UNVERIFIED |
