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Chemical Manufacturing

28,025 FACILITIESAll Census product lines →

NAICS 325

The Chemical Manufacturing industry, as defined by NAICS 325, had 25801 establishments according to the Bureau of Labor Statistics in 2025. This register lists 28025 facilities. The West Point, PA Facility employs 8892 people as of 2025.

SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE

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

Plants in this industry18,184 FACILITIES

Listing 18,184 of 28,025: the facilities with a website, a size band or two sources on record. The rest are in site search.

FacilityCityStateEmployeesStatus
Obiter Research LLCChampaignIL1–19 ACTIVE
Occidental Chemical CorporationWichitaKS100–499 ACTIVE
Occidental Chemical Corporation - Muscle Shoals PlantMuscle ShoalsAL20–99 ACTIVE
Ocean (caribbean) Distributors, INC.Boca RatonFL1–19 ACTIVE
Ocular Therapeutix, INCBedfordMA100–499 ACTIVE
Ocusoft INC.RosenbergTX20–99 ACTIVE
Old Western Paints INCDenverCO1–19 ACTIVE
Olin Chlor-alkali, Charleston PlantCharlestonTN100–499 ACTIVE
Olin CORP. Mcintosh, Alabama PlantMcintoshAL100–499 ACTIVE
Omega Bio-tek, INC.NorcrossGA1–19 ACTIVE
Omnia Products, LLCOxfordNC1–19 ACTIVE
Omniguide, INCBillericaMA— ACTIVE
Ony Biotech INCAmherstNY20–99 ACTIVE
Optima Chemical Group LLCDouglasGA100–499 ACTIVE
Opti Medical Systems INCRoswellGA100–499 ACTIVE
Optimum Technologies, INC.CartersvilleGA20–99 ACTIVE
Orasure Technologies INCBethlehemPA100–499 ACTIVE
Organabio, LLCSouth MiamiFL20–99 ACTIVE
Organic Dyes and Pigments, LLCLincolnRI20–99 ACTIVE
Organic Standard Solutions International LLCNorth CharlestonSC20–99 ACTIVE
Organogenesis INCCantonMA500+ ACTIVE
Organon LLCJersey CityNJ500+ ACTIVE
Oribi Manufacturing, LLCCommerce CityCO20–99 ACTIVE
Orion Engineered CarbonsBelpreOH20–99 ACTIVE
Orion Engineered Carbons Borger PlantBorgerTX20–99 ACTIVE
Orlandi, INCFarmingdaleNY20–99 ACTIVE
Ortec:easleyEasleySC100–499 ACTIVE
Ossian INCDavenportIA1–19 ACTIVE
Owen Oil Tools LPGodleyTX100–499 ACTIVE
Owensboro Specialty PolymersOwensboroKY— ACTIVE
Oxarc INC PascoPascoWA20–99 ACTIVE
Oxford Inustries of Connecticut, INC.New BritainCT1–19 ACTIVE
Oxford Performance Materials, INC.South WindsorCT20–99 ACTIVE
Oxford Pharmaceuticals, LLCBirminghamAL20–99 ACTIVE
Oxyrase INC.OntarioOH1–19 ACTIVE
Pacha Soap CO.HastingsNE20–99 ACTIVE
Pacific Industrial Development CORPAnn ArborMI— ACTIVE
Pacific Scientific Energetic Materials CO California LLCChandlerAZ100–499 ACTIVE
Pacific Scientific Energetic Materials Company (california Llc)HollisterCA— ACTIVE
Pajarito Powder LLCAlbuquerqueNM— ACTIVE
Palmer Intl INCSkippackPA20–99 ACTIVE
Pari Respiratory Equipment, INC.MidlothianVA20–99 ACTIVE
Patheon Manufacturing Services LLCGreenvilleNC500+ ACTIVE
Pbi Performance Products INCRock HillSC20–99 ACTIVE
Pci Nitrogen LLCPasadenaTX20–99 ACTIVE
Pdm Industries, INCTraverse CityMI1–19 ACTIVE
Pecora CORPHarleysvillePA20–99 ACTIVE
Peisch, INCBettendorfIA1–19 ACTIVE
Pel-freez, LLCRogersAR20–99 ACTIVE
Pelmor Laboratories, INCNewtownPA1–19 ACTIVE

Search all 28,025 facilities

Common questions

How many chemical manufacturing facilities are in the United States?

As of NOV 2026, FactoryRegistry lists 28,025 chemical manufacturing facilities (NAICS 325) across 55 states, compiled from EPA, OSHA and Census records.

Which state has the most chemical manufacturing facilities?

California, with 5,130 facilities listed.

How many chemical manufacturing facilities are still operating?

15,129 of the 28,025 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.