Chemical Processing · NH
Chemical Processing manufacturers in New Hampshire
19 domestic chemical processing suppliers in New Hampshire. Fabrication and machining for corrosive, high-pressure, and high-temperature service, where weld integrity and code compliance keep hazardous processes contained.
#44
of 50 by manufacturers listed
- 19
- In this state
- 0.4%
- Share of industry
- 7
- Set-aside registered
- 4
- Federal track record
of 19 on this page
of 19 hold awards
Standards that matter in chemical processing
3 to specify- ASME (U/S stamp)
- ASME B31.3
- ISO 9001:2015
Listings carry the federal set-aside registrations a company filed in SAM, not its quality-system certificates. Ask each shop for the current certificate and its scope before you release a drawing.
Chemical Processing suppliers in New Hampshire
all 19- 1
Salem, NH · est. 1984
Industrial Chemicals & Gases · Primary Metals & Foundry
—
- 2
Manchester, NH · est. 2017
Pesticide and Other Agricultural Chemical Manufacturing
—
- 3
Salem, NH · est. 1983
Industrial Chemicals & Gases
—
- 4
Londonderry, NH · est. 2023
Industrial Chemicals & Gases
Small disadvantaged—
- 5
Lebanon, NH · est. 1997
Engineering & Testing
$9K
- 6
Lebanon, NH · est. 2022
Polish and Other Sanitation Good Manufacturing
Small disadvantaged+1—
- 7
Hollis, NH · est. 2014
Polish and Other Sanitation Good Manufacturing
—
- 8
Seabrook, NH · est. 2018
Industrial Chemicals & Gases
—
- 9
Cornish, NH · est. 1988
Toilet Preparation Manufacturing
Small disadvantaged+1—
- 10
Manchester, NH · est. 1989
Industrial Chemicals & Gases · Industrial Distribution
$2K
- 11
Hollis, NH · est. 2025
Industrial Chemicals & Gases
—
- 12
Manchester, NH · est. 1981
Industrial Chemicals & Gases
$415K
- 13
Salem, NH · est. 1990
In-Vitro Diagnostic Substance Manufacturing
$35K
- 14
Manchester, NH · est. 2020
Engineering & Testing
Small disadvantaged—
- 15
Rye, NH · est. 2024
Industrial Chemicals & Gases · Industrial Packaging
Small disadvantaged—
- 16
Amherst, NH · est. 2012
Industrial Chemicals & Gases
Woman-owned+1—
- 17
Manchester, NH · est. 2001
Industrial Chemicals & Gases · Transportation & Aerospace
Veteran-owned—
- 18
Hampton, NH · est. 2018
In-Vitro Diagnostic Substance Manufacturing
—
- 19
Brentwood, NH · est. 2005
Industrial Chemicals & Gases · Plastics & Rubber
—
1–19 of 19
Chemical Processing in other states
49 states- California606
- Texas383
- Florida267
- New Jersey259
- Pennsylvania216
- Massachusetts205
- New York191
- Illinois189
- Ohio172
- North Carolina171
- Michigan151
- Georgia147
- Maryland141
- Virginia109
- Washington86
- Colorado86
- Connecticut82
Other industries in New Hampshire
38 verticals- Metal Fabrication126
- Instrumentation, Test & Measurement73
- Electronics65
- Optics & Photonics37
- Medical Devices27
- Industrial Machinery26
- Electrical Equipment & Components22
- Consumer Products20
- Aerospace19
- Telecommunications19
- Semiconductor18
- Wire, Cable & Interconnect18
- Plastics & Rubber Products16
What buyers specify in chemical processing
3 requirements- 01Code pressure vessels and process piping
- 02Corrosion-resistant alloy and exotic-metal fabrication
- 03Certified welding with material traceability
Everything made in New Hampshire, not just chemical processing.
New Hampshire state hub