Chemical Manufacturing in New Hampshire

NAICS 325 · NH

This register lists 108 facilities in New Hampshire. The Bureau of Labor Statistics counted 88 establishments in the Chemical Manufacturing industry in New Hampshire. Lonza Portsmouth, located in Portsmouth, employed 1574 people in 2025.

SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE

Plants in New Hampshire71 FACILITIES

Listing 71 of 108: the facilities with a website, a size band or two sources on record. The rest are in site search.

Facility	City	Employees	Status
HCHampshire Chemical	Nashua	—	◇ UNVERIFIED
HLHenkel Locktite	Seabrook	—	◇ UNVERIFIED
HSHs Staples CO	Merrimack	1–19	◇ UNVERIFIED
LSLyophilization Services of New England	Bedford	—	◇ UNVERIFIED
TSTrelleborg Sealing Solutions	Somersworth	—	◇ UNVERIFIED
UTUnited Therapeutics Corporation	Manchester	—	◇ UNVERIFIED
UIUraseal INC	Dover	—	◇ UNVERIFIED
WPWatson Park (a.k.a. Former Harcros Chemical Site)	Merrimack	—	◇ UNVERIFIED
Austin Powder Northeast LLC - Mt. William	Weare	20–99	◐ LIKELY ACTIVE
FDFoodState dba MegaFood	Londonderry	100–499	◐ LIKELY ACTIVE
IFIntegra-Biosciences Friars	Hudson	20–99	◐ LIKELY ACTIVE
TMTrividia Manufacturing Solutions - 248	Landcaster	1–19	◐ LIKELY ACTIVE
TMTrividia Manufacturing Solutions - 89	Landcaster	20–99	◐ LIKELY ACTIVE
ATAdhesive Technologies, INC.	Hampton	20–99	◇ UNVERIFIED
CIChuckles INC.	Manchester	20–99	◇ UNVERIFIED
DIDeflex Innovations INC.	Berlin	1–19	◇ UNVERIFIED
LMLightblocks Mfg LLC	Merrimack	—	◇ UNVERIFIED
NHNew Hampshire Plastics, INC.	Manchester	20–99	◇ UNVERIFIED
PTPolymer Technologies	Nashua	1–19	◇ UNVERIFIED
RSResin Systems CORP.	Amherst	20–99	◇ UNVERIFIED
YOYaya Organics L.l.c.	Hopkinton	1–19	◇ UNVERIFIED

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