| APAmco Precision Tools LLC | Berlin | CT | Transportation Equipment Manufacturing336411 | 20-99 | ● ACTIVE |
Bodycote Thermal Processing, INC | Berlin | CT | Fabricated Metal Product Manufacturing332811 | 20-99 | ● ACTIVE |
Budney Industries, INC | Berlin | CT | Transportation Equipment Manufacturing336412 | 20-99 | ● ACTIVE |
| BOBudney Overhaul & Repair, Limited | Berlin | CT | Transportation Equipment Manufacturing336412 | 100-499 | ● ACTIVE |
| CRCorbin Russwin | Berlin | CT | Fabricated Metal Product Manufacturing332510 | 100-499 | ● ACTIVE |
| DPDelmar Products | Berlin | CT | Chemical Manufacturing325211 | 20-99 | ● ACTIVE |
| FMForrest Machine Inc. | Berlin | CT | Fabricated Metal Product Manufacturing332710 | 20-99 | ● ACTIVE |
Grace Machine Co, LLC | Berlin | CT | Fabricated Metal Product Manufacturing332710 | 1-19 | ● ACTIVE |
Hart Industrial Unions LLC | Berlin | CT | Fabricated Metal Product Manufacturing332919 | 1-19 | ● ACTIVE |
Midsun Specialty Products, INC. | Berlin | CT | Chemical Manufacturing325212 | 20-99 | ● ACTIVE |
National Sign Corporation | Berlin | CT | Miscellaneous Manufacturing339950 | 20-99 | ● ACTIVE |
| PPPrecision Punch CORP | Berlin | CT | Fabricated Metal Product Manufacturing332212 | 20-99 | ● ACTIVE |
Royal Machine and Tool Corporation | Berlin | CT | Machinery Manufacturing333515 | 20-99 | ● ACTIVE |
Sirois Tool Company, INC. | Berlin | CT | Machinery Manufacturing333514 | 20-99 | ● ACTIVE |
Space Electronics, LLC | Berlin | CT | Computer and Electronic Product Manufacturing334511 | 20-99 | ● ACTIVE |
| SLSupermill, LLC | Berlin | CT | Machinery Manufacturing333515 | 20-99 | ● ACTIVE |
Tighitco INC. | Berlin | CT | Transportation Equipment Manufacturing336412 | 100-499 | ● ACTIVE |
| TCTomz CORP | Berlin | CT | Miscellaneous Manufacturing339112 | 100-499 | ● ACTIVE |
Cambridge Specialty CO. INC. | Berlin | CT | Transportation Equipment Manufacturing336411 | 20-99 | ● ACTIVE |
Solar Atmospheres of Connecticut, INC | Berlin | CT | Fabricated Metal Product Manufacturing332811 | — | ● ACTIVE |
| DAD and D Carbide Grinding INC. | Berlin | CT | Nonmetallic Mineral Product Manufacturing327910 | 20-99 | ◐ LIKELY ACTIVE |
| LSLorence Signworks, LLC | Berlin | CT | Miscellaneous Manufacturing339950 | 1-19 | ◐ LIKELY ACTIVE |
| MMMeadow Manufacturing, Inc. | Berlin | CT | Fabricated Metal Product Manufacturing332710 | 1-19 | ◐ LIKELY ACTIVE |
| CRColes Road Brewing LLC | Berlin | CT | Beverage and Tobacco Product Manufacturing312120 | — | ◐ LIKELY ACTIVE |
| DBDav-co Black LLC | Berlin | CT | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| BCBayer CORP | Berlin | CT | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| IAIndalex Aluminum Solutions | Berlin | CT | Primary Metal Manufacturing331316 | — | ◇ UNVERIFIED |
| RPRozycki/pioneer Precision Products | Berlin | CT | Fabricated Metal Product Manufacturing332721 | — | ◇ UNVERIFIED |
| ABANVA - Berlin | Berlin | CT | Fabricated Metal Product Manufacturing332119 | 100-499 | ◐ LIKELY ACTIVE |
| CCCathedral Corporation - Letter Concepts | Berlin | CT | Printing and Related Support Activities323111 | 20-99 | ◐ LIKELY ACTIVE |
| MManufacturing | Berlin | CT | Machinery Manufacturing333514 | 20-99 | ◐ LIKELY ACTIVE |
| YCYes Clean Hydrogen LLC | Berlin | CT | Chemical Manufacturing325120 | — | ◐ LIKELY ACTIVE |
| BMBomar Machine LLC | Berlin | CT | Fabricated Metal Product Manufacturing332710 | 1-19 | ◇ UNVERIFIED |
| PTPro Tool and Design, Incorporated | Berlin | CT | Machinery Manufacturing333515 | 1-19 | ◇ UNVERIFIED |
| RFRaw Food Central LLC | Berlin | CT | Food Manufacturing311423 | 1-19 | ◇ UNVERIFIED |
| BLBiopellet, LLC | Berlin | CT | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| BPBlackout Precision Machining LLC | Berlin | CT | Machinery Manufacturing333517 | — | ◇ UNVERIFIED |
| DLDeburring Laboratories INC. | Berlin | CT | Machinery Manufacturing333512 | — | ◇ UNVERIFIED |
| JIJri Industries, INC. | Berlin | CT | Machinery Manufacturing333298 | — | ◇ UNVERIFIED |
| NDNb Dental Lab LLC | Berlin | CT | Miscellaneous Manufacturing339116 | — | ◇ UNVERIFIED |
| PMPYC Manufacturing, LLC (PYC Realty LLC) | Berlin | CT | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| TMTag Manufacturing | Berlin | CT | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| UOUsdol Osha - Hartford Area Office | Berlin | CT | Machinery Manufacturing333298 | — | ◇ UNVERIFIED |