Nonmetallic Mineral Product Manufacturing in Maryland
NAICS 327 · MD
The register lists 197 facilities in Maryland. The Bureau of Labor Statistics counted 186 establishments in Maryland in 2025. Schuster Ready Mix, LLC, located in Owings Mills, employed 427 people in 2025.
SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE
Map, cities and product lines
Plants in Maryland17 FACILITIES
Listing 17 of 24: the facilities with a website, a size band or two sources on record. The rest are in site search.
| Facility | City | Employees | Status |
|---|---|---|---|
| Chesapeake Specialty Products, INC. | Sparrows Point | 1–19 | ACTIVE |
| Maryland China Company INC. | Reisterstown | — | ACTIVE |
| Atlantic Concrete MD, LLC | Cockeysville | 20–99 | LIKELY ACTIVE |
| Daniel G. Schuster, LLC - Portable Plant #5 | Baltimore | — | LIKELY ACTIVE |
| Lafarge Building Material INC | Sparrows Point | — | LIKELY ACTIVE |
| Schuster Concrete Ready Mix, LLC | Owings Mills | — | LIKELY ACTIVE |
| Back River Wastewater Treatment Facility | Baltimore | — | LIKELY ACTIVE |
| Machado Construction Company, INC. | Halethorpe | 20–99 | LIKELY ACTIVE |
| Recovermat Mid-atlantic, LLC | Baltimore | — | LIKELY ACTIVE |
| Rock Tops Fabrication INC | Owings Mills | 20–99 | LIKELY ACTIVE |
| Anchor (an Oldcastle Company)-white Marsh Plant | White Marsh | — | UNVERIFIED |
| Bluegrass Materials Texas Quarry | Cockeysville | — | UNVERIFIED |
| Maryland Concrete Septic Tank INC. | Maryland Line | — | UNVERIFIED |
| Opta Minerals | Baltimore | — | UNVERIFIED |
| Schuster, Daniel, INC. | Owings Mills | — | UNVERIFIED |
| York Building Products - Cockeysville | Cockeysville | — | UNVERIFIED |
| Schuster Ready Mix, LLC | Owings Mills | 100–499 | LIKELY ACTIVE |
All nonmetallic mineral product manufacturing nationwide · All manufacturing in Maryland