FactoryRegistry

Manufacturing in Knox County, Maine

As of JUL 2026, FactoryRegistry lists 43 manufacturing facilities in Knox County, Maine, sourced from EPA, OSHA and Census records.

FACILITIES
43
CITIES
10
TOP INDUSTRY
Transportation Equipment Manufacturing
11 facilities

Cities

Rockland (16)Thomaston (4)Union (4)Warren (3)Rockland (3)Rockport (3)Washington (2)Tenant Harbor (1)Spruce Head (1)Appleton (1)

Top industries

Transportation Equipment Manufacturing (11)Fabricated Metal Product Manufacturing (7)Food Manufacturing (7)Nonmetallic Mineral Product Manufacturing (4)Machinery Manufacturing (3)Petroleum and Coal Products Manufacturing (2)

Facilities

Knox Machine CO
Warren, ME
ACTIVE332710EMP 20-99
Lyman Morse Boatbuilding, INC.
Thomaston, ME
ACTIVE336612EMP 20-99
Rockland Marine CORP
Rockland, ME
ACTIVE336611EMP 20-99
Danisco Usa, INC.
Rockland, ME
LIKELY ACTIVE311999EMP 20-99
Fisher Engineering
Rockland, ME
LIKELY ACTIVE333120EMP 100-499
Jerome a Morris
Union, ME
LIKELY ACTIVE336612
North End Composites
Rockland, ME
LIKELY ACTIVE336612EMP 100-499
Steel-pro INC
Rockland, ME
LIKELY ACTIVE332313
Bixby & CO LLC
Rockland, ME
LIKELY ACTIVE311351
CedarWorks Manufactering Plant
Rockland, ME
LIKELY ACTIVE321992EMP 20-99
CedarWorks Office
Rockport, ME
LIKELY ACTIVE321992EMP 1-19
Douglas Dynamics aka RDX
Rockland, ME
LIKELY ACTIVE333120EMP 1-19
Hanger Prosthetics & Orthotics INC
Rockport, ME
LIKELY ACTIVE339113
Herbal Revolution Farm and Apothecary LLC
Union, ME
LIKELY ACTIVE325411
Ipi Press INC.
Union, ME
LIKELY ACTIVE323117
Lonza Rockland Inc
Rockland, ME
LIKELY ACTIVE325414EMP 20-99
Lyman-Morse Fabrication
Thomaston, ME
LIKELY ACTIVE332312EMP 1-19
Lyman Morse Technologies, LLC
Thomaston, ME
LIKELY ACTIVE335991
Toby W Kenniston
Rockland, ME
LIKELY ACTIVE332710
Traditional Rigging Company
Appleton, ME
LIKELY ACTIVE314910
17 Merrill Drive, LLC
Rockland, ME
UNVERIFIED311711
A & B Welding, LLC
Union, ME
UNVERIFIED332710
Adz, LLC
Rockland, ME
UNVERIFIED332311
Dragon Products CO - Thomaston
Thomaston, ME
UNVERIFIED327310
Ferraiolo Construction, INC.
Thomaston, ME
UNVERIFIED327331
Fisher Engineering
Rockland, ME
UNVERIFIED333120
Fmc Biopolymer Food Ingredients
Rockland, ME
UNVERIFIED311999
J O Brown & Son
North Haven, ME
UNVERIFIED336611
Maine Coast Lobster Company
Spruce Head, ME
UNVERIFIED311711
Mainely Boats
Cushing, ME
UNVERIFIED336612
Maine Natural Health
Warren, ME
UNVERIFIED311423
Northeast Paving - Washington Hma Plant
Washington, ME
UNVERIFIED324121
North End Composites LLC
Rockland, ME
UNVERIFIED336612
O Hara Ice CO
Rockland, ME
UNVERIFIED312113
O'hara Ice CO
Rockland, ME
UNVERIFIED339999
On the Road Trailers INC.
Warren, ME
UNVERIFIED336999
Pike Industries INC - Washington
Washington, ME
UNVERIFIED324121
Rockport Granite INC.
Rockport, ME
UNVERIFIED327991
Scripture's Concrete INC.
Rockport, ME
UNVERIFIED327390
Sea Hag Seafood
Tenant Harbor, ME
UNVERIFIED311711
Stuart Marine CORP.
Rockland, ME
UNVERIFIED336612
Wayfarer Marine
Camden, ME
UNVERIFIED336611
William M Lowe, INC.
Rockland, ME
UNVERIFIED332510