Primary Metal Manufacturing in Maryland

NAICS 331 · MD

The register lists 37 facilities in Maryland. The Bureau of Labor Statistics counted 58 establishments in Maryland. CAMBRIDGE INTERNATIONAL, located in Cambridge, employed 136 people in 2025.

SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE

Plants in Maryland28 FACILITIES

Listing 28 of 37: the facilities with a website, a size band or two sources on record. The rest are in site search.

Facility	City	Employees	Status
Danko Arlington, INC.	Baltimore	20–99	● ACTIVE
Plymouth Tube Company	Salisbury	20–99	● ACTIVE
CICambridge International	Cambridge	100–499	● ACTIVE
Garrett Container Systems, INC.	Accident	—	● ACTIVE
Lacy Foundries LLC	Baltimore	1–19	● ACTIVE
Marlin Steel Wire Products LLC	Baltimore	—	● ACTIVE
Aclara Metals INC.	Bethesda	—	● ACTIVE
Caldwell Casting Co., INC.	Cambridge	—	● ACTIVE
CBClendenin Brothers	Baltimore	100–499	◐ LIKELY ACTIVE
ARAmg Resources CORP	Baltimore	—	◐ LIKELY ACTIVE
TGThe Gill Corporation - Maryland	Edgewood	—	◐ LIKELY ACTIVE
EAEastalco Aluminum Company	Baltimore	—	◐ LIKELY ACTIVE
MMMaryland Metals Processing, INC.	Sparrows Point	20–99	◐ LIKELY ACTIVE
RSRg Steel Sparrows Point LLC	Sparrows Point	—	◐ LIKELY ACTIVE
BWBlaine Window Hardware	Hagerstown	—	◇ UNVERIFIED
CCCianbro Corporation Baltimore Facility	Curtis Bay	—	◇ UNVERIFIED
EAEastalco Aluminum CO	Frederick	—	◇ UNVERIFIED
EAElf Atochem North America, INC	Baltimore	—	◇ UNVERIFIED
HEHalethorpe Extrusions Incorporated	Baltimore	—	◇ UNVERIFIED
MRMaryland Recycling	Baltimore	—	◇ UNVERIFIED
MCMpa - Cox Creek	Baltimore	—	◇ UNVERIFIED
SSSchultz & Sons Salvage INC	Denton	—	◇ UNVERIFIED
TTechalloy	Baltimore	—	◇ UNVERIFIED
UIUnited Iron & Metal	Baltimore	—	◇ UNVERIFIED
VHVulcan Hart Corporation	Dundalk	—	◇ UNVERIFIED
WSWorthington Steel Company the	Baltimore	—	◇ UNVERIFIED
AIAmtrol Inc Baltimore	Sparrows Point	1–19	◐ LIKELY ACTIVE
WIWally`s Iron Works	Mount Airy	20–99	◇ UNVERIFIED

Search all 37 facilities