Plastics and Rubber Products Manufacturing in Maryland
NAICS 326 · MD
The Plastics and Rubber Products Manufacturing industry in Maryland has 136 establishments, according to the Bureau of Labor Statistics. This register lists 90 facilities in Maryland. The CertainTeed Corporation Williamsport Maryland plant employed 346 people in 2025.
SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE
Map, cities and product lines
Plants in Maryland7 FACILITIES
Listing 7 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 |
|---|---|---|---|
| Microsphere Material Solutions LLC | Rockville | 1–19 | ACTIVE |
| Rns Enterprises, INC. | Rockville | 1–19 | ACTIVE |
| Klg Corporation | Rockville | — | ACTIVE |
| Ndn International LLC | Potomac | — | ACTIVE |
| Surgical Supply Solutions LLC | Rockville | — | ACTIVE |
| Saint-Gobain PERF PLASTCS CORP | Gaithersburg | 20–99 | LIKELY ACTIVE |
| Unipec | Rockville | 1–19 | LIKELY ACTIVE |
All plastics and rubber products manufacturing nationwide · All manufacturing in Maryland