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Nonmetallic Mineral Product Manufacturing

20,947 FACILITIESAll Census product lines →

NAICS 327

Map, cities and product lines
Map of United States manufacturing facilities

Product lines reported here

These are counts by industry: the Economic Census records what establishments in nonmetallic mineral product manufacturing reported producing, and never names a plant.

Plants in this industry20,947 FACILITIES

FacilityCityStateEmployeesStatus
Reagg LLCTemple HillsMD— ACTIVE
Reed Minerals LLCDrakesboroKY— ACTIVE
Reed Minerals, LLCLa CygneKS— ACTIVE
Reef Innovations INCSaint CloudFL— ACTIVE
Reef Life Restoration LLCSalt Lake CityUT— ACTIVE
Reflex INCRidgewoodNJ— ACTIVE
Research Frontiers INCWoodburyNY— ACTIVE
Rfsj, INCMount PleasntPA— ACTIVE
Rh Worldwide Ventures, LLCAustinTX— ACTIVE
Richards-wilbert INCHagerstownMD— ACTIVE
(rk)2 Materials, INC.West ChesterPA— ACTIVE
Rnm, LLCTrentonSC— ACTIVE
Rock Fiber, INC.HoustonTX— ACTIVE
Rockingham Precast INCRockinghamVA— ACTIVE
Rosco, LLCJamaicaNY— ACTIVE
Ross Innovations INC.SloatsburgNY— ACTIVE
Rubiconcrete LLCDade CityFL— ACTIVE
Runway Safe, INC.SwedesboroNJ— ACTIVE
Russell Optics, LLCWest RutlandVT— ACTIVE
Sacred Stone LLCEspanolaNM— ACTIVE
Saint-gobain Advanced Ceramics LLCNiagara FallsNY— ACTIVE
Saint-gobain Ceramics & Plastics, INC.WorcesterMA— ACTIVE
Samuel, Son & CO. (usa) INC.Elk Grove VillageIL— ACTIVE
Saxon Glass Technologies, INCAlfredNY— ACTIVE
Sbg Defense LLCEast ButlerPA— ACTIVE
Select Quality Materials & Concrete, LLCQuemadoTX— ACTIVE
Service Granite Co, INCElbertonGA— ACTIVE
Shelby Gravel INCShelbyvilleIN— ACTIVE
Shelley Hive COBendOR— ACTIVE
Silver City Stone LLCHelenaMT— ACTIVE
S.l. Munson & Company INC.ColumbiaSC— ACTIVE
Smart Glass Systems, INC.WestonFL— ACTIVE
Soil Retention Products, INC.CarlsbadCA— ACTIVE
Solace Studio LLCLake JacksonTX— ACTIVE
Solidstrip, INC.MinocquaWI— ACTIVE
Specco Industries, INCKankakeeIL— ACTIVE
Spherical Block LLCAlfred StationNY— ACTIVE
Spokane Wilbert Vault CompanySpokaneWA— ACTIVE
S & S Optical CO INCNew HavenIN— ACTIVE
Stabilizer Solutions INCPhoenixAZ— ACTIVE
Stephen HutchinsJoeltonTN— ACTIVE
Stoneash CorporationHermosa BeachCA— ACTIVE
Stone Leaf Pottery INCArvadaCO— ACTIVE
Stones By Crowne, INC.PeabodyMA— ACTIVE
Straight 72, INCMarysvilleOH— ACTIVE
Structural Stone, LLCNorth KingstownRI— ACTIVE
Studio Eis INC.BrooklynNY— ACTIVE
Summit Precast LLCPuyallupWA— ACTIVE
Sunthru LLCSchenectadyNY— ACTIVE
Susan L PistacchiNewport BeachCA— ACTIVE

Search all 20,947 facilities

Common questions

How many nonmetallic mineral product manufacturing facilities are in the United States?

As of AUG 2026, FactoryRegistry lists 20,947 nonmetallic mineral product manufacturing facilities (NAICS 327) across 56 states, compiled from EPA, OSHA and Census records.

Which state has the most nonmetallic mineral product manufacturing facilities?

California, with 2,776 facilities listed.

How many nonmetallic mineral product manufacturing facilities are still operating?

6,682 of the 20,947 listed carry a recent operating signal in federal data — the register's Active or Likely active status. The rest are listed from their filings alone, which is a gap in the federal record rather than evidence that a plant has closed.