| ADAbbott Diagnostics Scarborough, INC. - Westbrook | Westbrook | ME | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| SDS D Warren CO | Westbrook | ME | Paper Manufacturing322120 | — | ◐ LIKELY ACTIVE |
Advanced Instruments | Westbrook | ME | Computer and Electronic Product Manufacturing334516 | — | ◐ LIKELY ACTIVE |
| ABAmato's Bakery | Westbrook | ME | Food Manufacturing311812 | 20-99 | ◐ LIKELY ACTIVE |
| BMBrackett Machine INC | Westbrook | ME | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| MLMast Landing Brewing Company | Westbrook | ME | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| AHAero Heating & Ventilating | Westbrook | ME | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |
| ADAmbient Diamond, INC. | Westbrook | ME | Computer and Electronic Product Manufacturing334413 | — | ◐ LIKELY ACTIVE |
AnalytiChem USA, Inc Westbrook | Westbrook | ME | Chemical Manufacturing325414 | 1-19 | ◐ LIKELY ACTIVE |
| CCConnecticut Contract Manufacturing LLC | Westbrook | CT | Food Manufacturing311340 | 20-99 | ◐ LIKELY ACTIVE |
| EEEdgewood Estates, LLC | Westbrook | CT | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| GWGlenn's Wine | Westbrook | CT | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| IWIDEXX World Campus | Westbrook | ME | Chemical Manufacturing325413 | 500+ | ◐ LIKELY ACTIVE |
| IGIMH Group | Westbrook | CT | Fabricated Metal Product Manufacturing332911 | 100-499 | ◐ LIKELY ACTIVE |
| PGPlug Group | Westbrook | CT | Fabricated Metal Product Manufacturing332911 | 20-99 | ◐ LIKELY ACTIVE |
| RGRestrictor Group | Westbrook | CT | Fabricated Metal Product Manufacturing332911 | 100-499 | ◐ LIKELY ACTIVE |
| SNSappi NA Westbrook Operations | Westbrook | ME | Paper Manufacturing322121 | 100-499 | ◐ LIKELY ACTIVE |
| SNSappi North America - Tech Center | Westbrook | ME | Paper Manufacturing322121 | 20-99 | ◐ LIKELY ACTIVE |
| SGSolenoid Group | Westbrook | CT | Fabricated Metal Product Manufacturing332911 | 100-499 | ◐ LIKELY ACTIVE |
| WGWestbrook Granite Works | Westbrook | ME | Nonmetallic Mineral Product Manufacturing327991 | 1-19 | ◐ LIKELY ACTIVE |