Chemical Manufacturing in Montana
NAICS 325 · MT
The Chemical Manufacturing industry in Montana had 73 establishments, according to the Bureau of Labor Statistics in 2025. This register lists 69 facilities in Montana. The GSK HAMILTON plant in Hamilton employs 303 people, according to data from 2025.
SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE
Map, cities and product lines
Plants in Montana4 FACILITIES
Listing 4 of 5: the facilities with a website, a size band or two sources on record. The rest are in site search.
| Facility | City | Employees | Status |
|---|---|---|---|
| American Chemet | East Helena | 100–499 | LIKELY ACTIVE |
| American Chemet CORP | East Helena | — | LIKELY ACTIVE |
| American Chemet | East Helena | 20–99 | LIKELY ACTIVE |
| Columbia Paint & Coatings CO | Helena | — | UNVERIFIED |
All chemical manufacturing nationwide · All manufacturing in Montana