Primary Metal Manufacturing in Montana

NAICS 331 · MT

This register lists 37 facilities in Montana. The Bureau of Labor Statistics counted 11 establishments in Montana. MONTANA PRECISION PRODUCTS LLC, located in Butte, employed 201 people in 2025.

SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE

Plants in Montana23 FACILITIES

Listing 23 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
Anderson Steel Supply INC	Great Falls	20–99	● ACTIVE
RARec Advanced Silicon Materials LLC	Butte	100–499	● ACTIVE
Currier Certified Welding, INC.	Kalispell	1–19	● ACTIVE
United States Antimony Corporation	Thompson Falls	—	● ACTIVE
MPMontana Precision Products LLC	Butte	100–499	◐ LIKELY ACTIVE
ESEpic Steel Corporation	Missoula	1–19	◐ LIKELY ACTIVE
KAKalispell Art Foundry	Kalispell	1–19	◇ UNVERIFIED
SMStillwater Mining Company Base Metals Refinery	Columbus	20–99	◐ LIKELY ACTIVE
CMContact Mining CO	Philipsburg	—	◐ LIKELY ACTIVE
GSGlacier Steel Roofing Products, INC.	Kalispell	1–19	◐ LIKELY ACTIVE
SPSmc Precious Metals Smelter & Base Metal Refy	Columbus	—	◐ LIKELY ACTIVE
SMStillwater Mining CO Smelter	Columbus	—	◐ LIKELY ACTIVE
AAsarco	Helena	—	◇ UNVERIFIED
BIBest in Bronze INC	Kalispell	—	◇ UNVERIFIED
CIChovanak INC	Helena	—	◇ UNVERIFIED
CFColumbia Falls Aluminum	Columbia Falls	—	◇ UNVERIFIED
CFColumbia Falls Aluminum Company Building 1	Columbia Falls	—	◇ UNVERIFIED
NANorthwest Art Casting INC	Bozeman	—	◇ UNVERIFIED
Truenorth Steel	Billings	—	◇ UNVERIFIED
UAUS Antimony CORP	Thompson Falls	—	◇ UNVERIFIED
SMStillwater Mining Company Base Metals Smelter	Columbus	20–99	◐ LIKELY ACTIVE
ACArt Casting of Montana, INC.	Belgrade	1–19	◇ UNVERIFIED
CSContinental Steel Works, INC.	Butte	—	◇ UNVERIFIED

Search all 37 facilities