 B & R Machine INC | Ludlow | MA | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
 Chemi-graphic, INC. | Ludlow | MA | Fabricated Metal Product Manufacturing332812 | — | ● ACTIVE |
 Kleeberg Sheet Metal, INC | Ludlow | MA | Fabricated Metal Product Manufacturing332322 | — | ● ACTIVE |
| CMCommercial Machine, INC. | Ludlow | MA | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
| JAJames Austin Company | Ludlow | MA | Chemical Manufacturing325188 | — | ◇ UNVERIFIED |
 Ft Custom Printing & Embroidery Apparel LLC | Ludlow | MA | Printing and Related Support Activities323111 | — | ◐ LIKELY ACTIVE |
| ADAdvanced Drainage System | Ludlow | MA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| IDIron Duke Brewing LLC. | Ludlow | MA | Beverage and Tobacco Product Manufacturing312120 | — | ◐ LIKELY ACTIVE |
| BSBanas Sand & Gravel | Ludlow | MA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| EGEaton Global Hose | Ludlow | MA | Plastics and Rubber Products Manufacturing326220 | — | ◇ UNVERIFIED |
| LILudlow Industrial Realties | Ludlow | MA | Textile Mills313113 | — | ◇ UNVERIFIED |
| NMNorpin Mfg CO INC | Ludlow | MA | Fabricated Metal Product Manufacturing332431 | — | ◇ UNVERIFIED |
| PSProcess Solutions INC | Ludlow | MA | Printing and Related Support Activities323119 | — | ◇ UNVERIFIED |
| RMRoma Marble INC | Ludlow | MA | Plastics and Rubber Products Manufacturing326121 | — | ◇ UNVERIFIED |
| SCSerco C5isr Northeastern Business Center | Ludlow | MA | Computer and Electronic Product Manufacturing334290 | — | ◇ UNVERIFIED |
| CICSW, Inc. | Ludlow | MA | Machinery Manufacturing333514 | 20-99 | ◐ LIKELY ACTIVE |
| JAJames Austin Company / KIK Consumer Products | Ludlow | MA | Chemical Manufacturing325612 | 20-99 | ◐ LIKELY ACTIVE |
| KSKleeberg SheetMetal | Ludlow | MA | Fabricated Metal Product Manufacturing332322 | 100-499 | ◐ LIKELY ACTIVE |
| LLudlow | Ludlow | MA | Plastics and Rubber Products Manufacturing326122 | 100-499 | ◐ LIKELY ACTIVE |
| SSSole Syndicate Distilling | Ludlow | MA | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| CSC S Industries, LLC | Ludlow | MA | Machinery Manufacturing333992 | — | ◇ UNVERIFIED |
| JGJohn Gil, INC. | Ludlow | MA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| LWLudlow Wwtp | Ludlow | MA | Transportation Equipment Manufacturing336211 | — | ◇ UNVERIFIED |
| NENew England Pallets & Skids, INC. | Ludlow | MA | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| SDSuperior Door and Millwork | Ludlow | MA | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| VVVanished Valley, Inc. | Ludlow | MA | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| WIWSMD, Inc. | Ludlow | MA | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
