| HSHMF South Windsor | South Windsor | CT | Food Manufacturing311612 | 1-19 | ◐ LIKELY ACTIVE |
| OROld Route Two Spirits | South Windsor | CT | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
Prime Materials Recovery, INC - South Windsor | South Windsor | CT | Machinery Manufacturing333248 | 1-19 | ◐ LIKELY ACTIVE |
| PLPrtc LLC | South Windsor | CT | Fabricated Metal Product Manufacturing332618 | — | ◐ LIKELY ACTIVE |
| PAPursuit Aerospace DBA Whitcraft South Windsor | South Windsor | CT | Transportation Equipment Manufacturing336412 | 100-499 | ◐ LIKELY ACTIVE |
| TMTwin MRO | South Windsor | CT | Transportation Equipment Manufacturing336412 | 100-499 | ◐ LIKELY ACTIVE |
| HBH & B Tool & Eng CO | South Windsor | CT | Transportation Equipment Manufacturing336413 | 20-99 | ◇ UNVERIFIED |
| BHBlue Horizon Realty, LLC | South Windsor | CT | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| BFBroadridge Financial Solutions, INC. | South Windsor | CT | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| DIDyco Industries | South Windsor | CT | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| GHGlasco Heating & Air Conditioning, INC. | South Windsor | CT | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| HPHolts Precision, INC. | South Windsor | CT | Machinery Manufacturing333517 | — | ◇ UNVERIFIED |
| MGM & G Jewelers, INC. | South Windsor | CT | Miscellaneous Manufacturing339913 | — | ◇ UNVERIFIED |
| MRM.h. Rhodes Cramer Company | South Windsor | CT | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| PBPB Blast LLC | South Windsor | CT | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| PIPti Investment CO. LLP | South Windsor | CT | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| RBRedland Brick INC /kf Plant | South Windsor | CT | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| STSatellite Tool and Machine Co., INC. | South Windsor | CT | Transportation Equipment Manufacturing336412 | — | ◇ UNVERIFIED |
| SESiftex Equipment Company | South Windsor | CT | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| TUTelefunken Usa, LLC | South Windsor | CT | Computer and Electronic Product Manufacturing334310 | — | ◇ UNVERIFIED |
| UFUtc Fuel Cells L L C | South Windsor | CT | Electrical Equipment, Appliance & Component Manufacturing335999 | — | ◇ UNVERIFIED |