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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

Plants in New Hampshire104 FACILITIES

FacilityCityEmployeesStatus
Armi Bioindustries CORPManchester LIKELY ACTIVE
Austin Powder Northeast LLC - Mt. WilliamWeare20–99 LIKELY ACTIVE
Culture Organics, INC.Rye LIKELY ACTIVE
FoodState dba MegaFoodLondonderry100–499 LIKELY ACTIVE
Global Environmental Solutions LLCManchester LIKELY ACTIVE
Integra-Biosciences FriarsHudson20–99 LIKELY ACTIVE
Integra-Biosciences MerrimackMerrimack1–19 LIKELY ACTIVE
Lonza PortsmouthPortsmouth500+ LIKELY ACTIVE
Novo Nordisk US Bio Production Inc.West Lebanon100–499 LIKELY ACTIVE
Trividia Manufacturing Solutions - 248Landcaster1–19 LIKELY ACTIVE
Trividia Manufacturing Solutions - 89Landcaster20–99 LIKELY ACTIVE
Worthen Industries Nashua SouthNashua20–99 LIKELY ACTIVE
Hs Staples COMerrimack UNVERIFIED
Lightblocks Mfg LLCMerrimack UNVERIFIED
Simple Life Recycling LLCRochester UNVERIFIED
Adhesive Technologies, INC.Hampton UNVERIFIED
Alpco Diagnostics INCSalem UNVERIFIED
Antifreeze Technology SystemsGoffstown UNVERIFIED
Black Mag Llc, Dba Bmi & Dba Black Mag IndustriesColebrook UNVERIFIED
Chuckles INC.Manchester UNVERIFIED
Corium, CORP.Seabrook UNVERIFIED
Dartmouth Hitchcock HealthHooksett UNVERIFIED
Deflex Innovations INC.Berlin UNVERIFIED
Foundation Armor LLCNashua UNVERIFIED
Gp Vapor INCSalem UNVERIFIED
Hero BxNorth Hampton UNVERIFIED
Hudson Color Concentrates INCHudson UNVERIFIED
Insmed INCLebanon UNVERIFIED
Itaconix CORPStratham UNVERIFIED
Labor ReadyBrentwood UNVERIFIED
Lonza BiologicsPortsmouth UNVERIFIED
Lonza Biologics INC.Portsmouth UNVERIFIED
Lyophilization Services of New England, INC. (lsne)Bedford UNVERIFIED
Morton Intl INCSeabrook UNVERIFIED
New Hampshire Plastics, INC.Manchester UNVERIFIED
Pci Pharmaceutical ServicesBedford UNVERIFIED
Pierce & Stevens CORPSeabrook UNVERIFIED
Plastics Forming EnterprisesMerrimack UNVERIFIED
Plastic Technologies of Vermont, INCLondonderry UNVERIFIED
Polyexe CorporationBrentwood UNVERIFIED
Polymer TechnologiesNashua UNVERIFIED
Resin Systems CORP.Amherst UNVERIFIED
Safety-kleen Systems INC - Newington FacilityNewington UNVERIFIED
Sanctuary AtcRochester UNVERIFIED
Sgs North AmericaHudson UNVERIFIED
Trividia Manufacturing Solutions INCLancaster UNVERIFIED
Trividia Manufacturing Solutions INCLancaster UNVERIFIED
Universal Systems USA INC.Manchester UNVERIFIED
Vhg Labs INC. Dba Lgc StandardsManchester UNVERIFIED
Vibracoustic North America L.p.Manchester UNVERIFIED

Search all 104 facilities

All chemical manufacturing nationwide · All manufacturing in New Hampshire