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 Montana6 FACILITIES
Listing 6 of 10: the facilities with a website, a size band or two sources on record. The rest are in site search.
| Facility | City | Employees | Status |
|---|---|---|---|
| Pelican Chemicals INC. | Missoula | — | ACTIVE |
| Shield Pest Defense LLC | Missoula | — | ACTIVE |
| Thatcher Company of Montana, INC. | Missoula | — | ACTIVE |
| Hexion INC. - Missoula | Missoula | — | LIKELY ACTIVE |
| Promiliad Biopharma Incorporated | Alberton | 1–19 | LIKELY ACTIVE |
| Northern Region Missoula | Missoula | 1–19 | LIKELY ACTIVE |
All chemical manufacturing nationwide · All manufacturing in Montana