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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
Forty One Collective, LLCJacksonvilleFL— ACTIVE
Fourier LLCBurlingtonMA— ACTIVE
Franklin, MarkNewarkNJ— ACTIVE
Geopolymer International LLCLas VegasNV— ACTIVE
Gerresheimer Glass INCVinelandNJ— ACTIVE
Gibraltar Rock, INC.Belle MeadNJ— ACTIVE
Gigacrete, INC.Las VegasNV— ACTIVE
Glassblowerben, LLCNew OrleansLA— ACTIVE
Glass Fabricators INCGrimesIA— ACTIVE
Gnap LLCHigh PointNC— ACTIVE
Gooch and Housego (california) LLCMoorparkCA— ACTIVE
Granite World of Colorado, LLCDenverCO— ACTIVE
Graymont Western US INCSandyUT— ACTIVE
Great Lakes Concrete Products LLCJenisonMI— ACTIVE
Green Diamond Performance Materials, INCRiddleOR— ACTIVE
Greenmaker Industries of Connecticut LLCWest HartfordCT— ACTIVE
Greer Industries, INC.RivertonWV— ACTIVE
Greer Products LLCGarden ValleyCA— ACTIVE
Grow Oyster Reefs LLCCharlottesvilleVA— ACTIVE
Gumbert M N CORPDallasTX— ACTIVE
Gw Partners International, INC.Rancho CucamongaCA— ACTIVE
Hahn Ready-mix CODavenportIA— ACTIVE
Hanford Sand & Gravel, INCElk GroveCA— ACTIVE
Hanover Prest-paving CompanyHanoverPA— ACTIVE
H C & D LLCHonoluluHI— ACTIVE
Hess Manufacturing INCSalisburyNC— ACTIVE
Highland Materials, INC.Johnson CityTN— ACTIVE
Hilgartner Natural Stone Co., INC.BaltimoreMD— ACTIVE
His Glassworks, INCAshevilleNC— ACTIVE
H L Clausing INCSkokieIL— ACTIVE
Holt International LLCPort CharlotteFL— ACTIVE
Homemade Tastes Better on Handmade, LLCAshevilleNC— ACTIVE
Hooker Creek Companies LLCBendOR— ACTIVE
Hopkins Sand & Gravel, INC.Pine CityMN— ACTIVE
Howarth Granite Holdings LLCClaymontDE— ACTIVE
Howe Precast Concrete Barrier INCMesaAZ— ACTIVE
Hyperion Optics USA INCEdisonNJ— ACTIVE
Impact Absorbents, INCAtascaderoCA— ACTIVE
Impressive Construction INCVilla ParkIL— ACTIVE
Im Technologies LLCShorehamNY— ACTIVE
Indianola Precast, L.l.cIndianolaIA— ACTIVE
Integrated Composite Construction Systems LLCManassasVA— ACTIVE
International Ceramic Engineering, LLCWorcesterMA— ACTIVE
International Erosion Control Systems INCHoumaLA— ACTIVE
Ionic Mineral Technologies, LLCProvoUT— ACTIVE
Ionic Order LLCNew YorkNY— ACTIVE
Isoclima Specialty Glass LLCEast ButlerPA— ACTIVE
Isolantite Manufacturing CO INCStirlingNJ— ACTIVE
Isp Optics CorporationOrlandoFL— ACTIVE
Jefferson Concrete CORPWatertownNY— 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.