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Chemical Manufacturing in New Hampshire

NAICS 325 · NH

New Hampshire is home to Chemical Manufacturing, an industry with 86 establishments counted by the Bureau of Labor Statistics in 2024. Lonza Portsmouth in Portsmouth had 1,574 employees in 2025, more than any other plant listed. This register lists 104 facilities in 42 cities across New Hampshire as of 2026.

SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE

Map, cities and product lines

Products made in New Hampshire92 PRODUCTS

ProductSourceFacilities
Radioimmunoassay, ActhFederal registry1
Radioimmunoassay, AndrostenedioneFederal registry1
Radioimmunoassay, CalcitoninFederal registry1
Radioimmunoassay, C-Peptides Of ProinsulinFederal registry1
Radioimmunoassay, Dehydroepiandrosterone (Free And Sulfate)Federal registry1
Radioimmunoassay, EstradiolFederal registry1
Radioimmunoassay, EstriolFederal registry1
Radioimmunoassay, EstroneFederal registry1
Radioimmunoassay, Follicle-Stimulating HormoneFederal registry1
Radioimmunoassay, GlucagonFederal registry1
Radioimmunoassay, Human Growth HormoneFederal registry1
Radioimmunoassay, Immunoreactive InsulinFederal registry1
Radioimmunoassay, Luteinizing HormoneFederal registry1
Radioimmunoassay, Parathyroid HormoneFederal registry1
Radioimmunoassay, PregnenoloneFederal registry1
Radioimmunoassay, ProgesteroneFederal registry1
Radioimmunoassay, Prolactin (Lactogen)Federal registry1
Radioimmunoassay, Testosterones And DihydrotestosteroneFederal registry1
Radioimmunoassay, Total Estrogens, NonpregnancyFederal registry1
Radioimmunoassay, Total TriiodothyronineFederal registry1
Reader, Cervical Cytology Slide, AutomatedFederal registry1
Scissors, Medical, DisposableFederal registry1
Solvent, Adhesive TapeFederal registry1
Splint, Extremity, Non-Inflatable, External, Non-SterileFederal registry1
Splint, Hand, And ComponentsFederal registry1
Stain, PapanicolauFederal registry1
Stapler, SkinFederal registry1
Stethoscope, ManualFederal registry1
Strip, Temperature, Forehead, Liquid CrystalFederal registry1
Syringe, Irrigating (Non Dental)Federal registry1
System,Test,Antibodies,B2 - Glycoprotein I (B2 - Gpi)Federal registry1
System, Test, Anticardiolipin ImmunologicalFederal registry1
System, Test, Vitamin DFederal registry1
Tape And Bandage, AdhesiveFederal registry1
Tape And Bandage, Adhesive, Adjustable Closing Mechanism, Otc UseFederal registry1
Thermometer, Clinical Color ChangeFederal registry1
Toothbrush, ManualFederal registry1
Tourniquet, NonpneumaticFederal registry1
Valve, Non-RebreathingFederal registry1
Vinyl Patient Examination GloveFederal registry1
Visual, Pregnancy Hcg, Prescription UseFederal registry1
Wax, Dental, IntraoralFederal registry1

Search all 104 facilities

All chemical manufacturing nationwide · All manufacturing in New Hampshire