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Nonmetallic Mineral Product Manufacturing in Maryland

NAICS 327 · MD

The register lists 196 facilities in Maryland. The Bureau of Labor Statistics counted 186 establishments in Maryland. 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

Biggest counties

Baltimore24Anne Arundel21Baltimore19Frederick18Prince George's18Howard15Washington15Harford13

Biggest cities

Plants in Maryland126 FACILITIES

Listing 126 of 196: the facilities with a website, a size band or two sources on record. The rest are in site search.

FacilityCityEmployeesStatus
Machado Construction Company, INC.Halethorpe20–99 LIKELY ACTIVE
Maryland Portable Concrete ElktonElkton20–99 LIKELY ACTIVE
Powercon CorporationSevern100–499 LIKELY ACTIVE
Strittmatter Materials, LLC Dba D.c. MaterialsHyattsville— LIKELY ACTIVE
Thomas/bennett/hunter INC.Westminster— LIKELY ACTIVE
Tri-star Mining - Hampshire Hill Mine (no. 419)Barton— LIKELY ACTIVE
Aggregate Industries-aggregate DivisionHyattsville— LIKELY ACTIVE
Daniel G. Schuster Concrete/hHagerstown— LIKELY ACTIVE
Day, F.o. Bituminous - Piney MtgRockville— LIKELY ACTIVE
Lafarge Mid-atlantic INC Rockville RmxRockville— LIKELY ACTIVE
Lehigh Cement COWoodsboro— LIKELY ACTIVE
New Ngc INC (dba National Gypsum Co)Belcamp— LIKELY ACTIVE
Oldcastle Apg Mid-atlantic Crofton, MdOdenton— LIKELY ACTIVE
Recovermat Mid-atlantic, LLCBaltimore— LIKELY ACTIVE
Rinker Materials Hydro Conduit- FrederickFrederick— LIKELY ACTIVE
Rock Tops Fabrication INCOwings Mills20–99 LIKELY ACTIVE
Schuster Concrete Ready Mix Llc-guilford RdJessup— LIKELY ACTIVE
Schuster Concrete Ready Mix Llc-southlawn LnRockville— LIKELY ACTIVE
S&g Concrete EdgewoodEdgewood— LIKELY ACTIVE
Allan Myers Md, INC. -- Elk Mills Rap PlantElk Mills— UNVERIFIED
Anchor (an Oldcastle Company)-white Marsh PlantWhite Marsh— UNVERIFIED
Beavercreek Concrete PlantBeaver Creek— UNVERIFIED
Betco Supreme INCOdenton— UNVERIFIED
Bluegrass Materials Marriottsville QuarryMarriottsville— UNVERIFIED
Bluegrass Materials Rockdale QuarryClear Spring— UNVERIFIED
Bluegrass Materials Texas QuarryCockeysville— UNVERIFIED
Central Ready Mix Cambridge PlantCambridge— UNVERIFIED
Chaney EnterprisesUpper Marlboro— UNVERIFIED
Chaney IndustriesAnnapolis— UNVERIFIED
Clayburn - New Savage WorksGrantsville— UNVERIFIED
Concrete Pipe and Precast, LLCJessup— UNVERIFIED
Crouse Construction CO INCAberdeen— UNVERIFIED
Equality Concrete - Seat PleasantSeat Pleasant— UNVERIFIED
Federal Stone Industries, INC.Thurmont— UNVERIFIED
Gardner, E.l.,inc. - Pasadena PlantPasadena— UNVERIFIED
Jessup Ready Mix ConcreteJessup— UNVERIFIED
Keymar Aggregates EngineeringKeymar— UNVERIFIED
Lafarge Aggregates & ConcreteFrederick— UNVERIFIED
Lafarge Joppa Concrete Batch PlantJoppa— UNVERIFIED
Lafarge Mid-atlantic, LLC - Jessup PlantJessup— UNVERIFIED
Maryland Concrete Septic Tank INC.Maryland Line— UNVERIFIED
Maryland Paving ChurchvilleBel Air— UNVERIFIED
Mt Savage FirebrickFrostburg— UNVERIFIED
Mt Savage Specialty RefractoriesMount Savage— UNVERIFIED
Opta MineralsBaltimore— UNVERIFIED
Price Brothers CompanyPerryman— UNVERIFIED
Redland BrickWilliamsport— UNVERIFIED
Schuster, Daniel, INC.Owings Mills— UNVERIFIED
Waugh Chapel PlantGambrills— UNVERIFIED
Wicomico County AirportSalisbury— UNVERIFIED

Search all 196 facilities

All nonmetallic mineral product manufacturing nationwide · All manufacturing in Maryland