| AVAdvanced Vacuum Technology, INC. | Simsbury | CT | Machinery Manufacturing333992 | — | ◐ LIKELY ACTIVE |
| ACAnalytical & Combustion Systems, INC | Bethel | CT | Machinery Manufacturing333414 | — | ◐ LIKELY ACTIVE |
| AAnsonia | Ansonia | CT | Machinery Manufacturing333993 | 20-99 | ◐ LIKELY ACTIVE |
| AAsml | Wilton | CT | Machinery Manufacturing333242 | 500+ | ◐ LIKELY ACTIVE |
| BSBausch + Stroebel Machine Company, Inc. | Branford | CT | Machinery Manufacturing333993 | 20-99 | ◐ LIKELY ACTIVE |
| BRBBM Railway Equipment, LLC. | Oxford | CT | Machinery Manufacturing333923 | 20-99 | ◐ LIKELY ACTIVE |
| BSBeta Squared Lithography, INC. | Brookfield | CT | Machinery Manufacturing333242 | — | ◐ LIKELY ACTIVE |
| BABook Automation, INC | New Milford | CT | Machinery Manufacturing333248 | — | ◐ LIKELY ACTIVE |
| BPBritish Precision | Glastonbury | CT | Machinery Manufacturing333514 | 1-19 | ◐ LIKELY ACTIVE |
| BLBurteck LLC | Bloomfield | CT | Machinery Manufacturing333511 | — | ◐ LIKELY ACTIVE |
| CCCable Components Group | Pawcatuck | CT | Machinery Manufacturing333249 | 20-99 | ◐ LIKELY ACTIVE |
| CLCalcify LLC | Weston | CT | Machinery Manufacturing333248 | — | ◐ LIKELY ACTIVE |
| CCC. Cowles & Company and Subsidiaries | North Haven | CT | Machinery Manufacturing333414 | 20-99 | ◐ LIKELY ACTIVE |
| CGCoastal Group INC | Killingworth | CT | Machinery Manufacturing333517 | — | ◐ LIKELY ACTIVE |
| CZCt135 Zygo Corporation | Middlefield | CT | Machinery Manufacturing333314 | 100-499 | ◐ LIKELY ACTIVE |
| DCD'Ambruoso Construction Company Inc | Oxford | CT | Machinery Manufacturing333120 | 20-99 | ◐ LIKELY ACTIVE |
| DHDeburring House Inc | East Berlin | CT | Machinery Manufacturing333517 | 20-99 | ◐ LIKELY ACTIVE |
| DADrt Aerospace, LLC | Meriden | CT | Machinery Manufacturing333618 | — | ◐ LIKELY ACTIVE |
| DCDukane Connecticut | Wallingford | CT | Machinery Manufacturing333992 | 1-19 | ◐ LIKELY ACTIVE |
| E1ebmpapst 110 | Farmington | CT | Machinery Manufacturing333413 | 100-499 | ◐ LIKELY ACTIVE |
| EDElevator Door Manufacturing | Oxford | CT | Machinery Manufacturing333921 | 20-99 | ◐ LIKELY ACTIVE |
Equipment Depot Northeast, Inc. - Wallingford | Wallingford | CT | Machinery Manufacturing333924 | 1-19 | ◐ LIKELY ACTIVE |
Flextronics International USA | Manchester | CT | Machinery Manufacturing333511 | 100-499 | ◐ LIKELY ACTIVE |
| GSG & S Scrap Metal | South Windsor | CT | Machinery Manufacturing333248 | 20-99 | ◐ LIKELY ACTIVE |
| HMHobson & Motzer, LLC - Wallingford | Wallingford | CT | Machinery Manufacturing333514 | 20-99 | ◐ LIKELY ACTIVE |
| HSHydro Service & Supplies, INC. | Middletown | CT | Machinery Manufacturing333310 | — | ◐ LIKELY ACTIVE |
| ITIvanhoe Tool & Die Company, Inc. | Thompson | CT | Machinery Manufacturing333511 | 20-99 | ◐ LIKELY ACTIVE |
| LILuchs INC | Greenwich | CT | Machinery Manufacturing333310 | — | ◐ LIKELY ACTIVE |
| MBMachine Builders of New England LLC | Milford | CT | Machinery Manufacturing333517 | — | ▲ REPORTED CLOSED |
| MManufacturing | Berlin | CT | Machinery Manufacturing333514 | 20-99 | ◐ LIKELY ACTIVE |
| MNMk North America, INC. | Bloomfield | CT | Machinery Manufacturing333922 | 100-499 | ◐ LIKELY ACTIVE |
| MPMontgomery Peterson, INC | Windsor Locks | CT | Machinery Manufacturing333248 | — | ◐ LIKELY ACTIVE |
| MCM.t.m. Corporation | Andover | CT | Machinery Manufacturing333514 | — | ◐ LIKELY ACTIVE |
| NENew England Turf Management LLC | Farmington | CT | Machinery Manufacturing333112 | — | ◐ LIKELY ACTIVE |
| NTNuma Tool Company | Thompson | CT | Machinery Manufacturing333131 | 20-99 | ◐ LIKELY ACTIVE |
| OEOtis Elevator Company | Farmington | CT | Machinery Manufacturing333921 | — | ◐ LIKELY ACTIVE |
| PCPacific Coast Elevator CORP | Farmington | CT | Machinery Manufacturing333921 | — | ◐ LIKELY ACTIVE |
| PIP/A Industries Inc. | Bloomfield | CT | Machinery Manufacturing333517 | 20-99 | ◐ LIKELY ACTIVE |
Prime Materials Recovery, INC - South Windsor | South Windsor | CT | Machinery Manufacturing333248 | 1-19 | ◐ LIKELY ACTIVE |
| SPSolventum Purification Inc | Stafford Springs | CT | Machinery Manufacturing333999 | 100-499 | ◐ LIKELY ACTIVE |
| SLSupermill, LLC | Berlin | CT | Machinery Manufacturing333515 | 20-99 | ◐ LIKELY ACTIVE |
| STSwanson Tool Mfg, Inc. | Elmwood | CT | Machinery Manufacturing333515 | 20-99 | ◐ LIKELY ACTIVE |
| TCTerex Corporation | Norwalk | CT | Machinery Manufacturing333120 | 20-99 | ◐ LIKELY ACTIVE |
| TCThermatool Corp | East Haven | CT | Machinery Manufacturing333992 | 20-99 | ◐ LIKELY ACTIVE |
| WUWittmann USA Inc. | Torrington | CT | Machinery Manufacturing333249 | 100-499 | ◐ LIKELY ACTIVE |
| ZCZeeco Connecticut | Plainville | CT | Machinery Manufacturing333994 | 20-99 | ◐ LIKELY ACTIVE |
| IFIndustrial Flow Solutions Operating LLC | New Haven | CT | Machinery Manufacturing333914 | — | ◐ LIKELY ACTIVE |
| TUTreif USA INC. | Shelton | CT | Machinery Manufacturing333241 | — | ◐ LIKELY ACTIVE |
| VEVision Engineering, INC. | New Milford | CT | Machinery Manufacturing333248 | — | ◐ LIKELY ACTIVE |
| MCMoon Cutter CO. INC. | Hamden | CT | Machinery Manufacturing333515 | — | ◇ UNVERIFIED |