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Top 38 chemical companies in Massachusetts

Tamtam tracks 38 chemical companies headquartered in Massachusetts. This list ranks all of them by number of employees on LinkedIn, led by Entegris, MKS Inc. and Cabot Corporation. Their median headcount is 303. Half of them were founded in 1970 or later. The most common headquarters are Boston (4), Worcester (3) and Andover (2).

๐Ÿ‡บ๐Ÿ‡ธ Massachusetts38 companiesUpdated Nov 12, 2026

The chemical companies in Massachusetts include large, established firms. Cabot Corporation, founded in 1882, specializes in performance materials, and Saint-Gobain Abrasives, established in 1885, provides abrasive solutions. A.W. Chesterton Company, from 1884, offers industrial solutions like fluid sealing systems, while MKS Inc., founded in 1961, focuses on technology solutions for semiconductor manufacturing. These companies often have a global presence.

A common thread among these companies is their focus on advanced materials and specialized industrial applications. Many, such as Entegris, are involved in semiconductor manufacturing, while others like Hollingsworth & Vose develop filtration and energy storage materials. There is a cluster of headquarters in Boston, with Cabot Corporation, Orbia, and Koura all located there.

#CompanyIndustryHeadquarters EmployeesFounded
1
Entegrisentegris.com

A global leader in advanced science-based solutions for technology challenges, driving innovation with artificial intelligence, augmented reality, and IoT technologies

Semiconductor Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Billerica 6,612 n/a
2
MKS Inc.mks.com

provides technology solutions including instruments, systems, and specialty chemicals for semiconductor manufacturing, electronics, packaging, and specialty industrial applications

Semiconductor Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Andover 4,581 1961
3
Cabot Corporationcabotcorp.com

Global specialty chemical and performance materials company providing solutions to address current challenges and future customer needs worldwide.

Chemical Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Boston 3,719 1882
4
Saint-Gobain Abrasivessaint-gobain-surfacesolutions.com

The company offers powerful and precise abrasives solutions for various markets, focusing on customization, performance, and safety with global presence

Industrial Machinery Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Worcester 3,196 1885
5
Orbiaorbia.com

A global company tackling challenges in water and food security, information access, connectivity, and energy transition across various sectors

Utilities ๐Ÿ‡บ๐Ÿ‡ธ Boston 1,300 n/a
6
A.W. Chesterton Companychesterton.com

A global provider of industrial solutions, specializing in fluid sealing systems, protective coatings, lubricants, and MRO chemicals with a focus on customer service and support

Mechanical Or Industrial Engineering ๐Ÿ‡บ๐Ÿ‡ธ Groveland 1,052 1884
7
Hollingsworth & Vosehollingsworth-vose.com

Development and supply of advanced filtration and energy storage materials for diverse industries, enhancing health, sustainability, and efficiency worldwide.

Nanotechnology Research ๐Ÿ‡บ๐Ÿ‡ธ Walpole 975 n/a
8
Gradiantgradiant.com

Provides advanced water and wastewater treatment solutions for critical industries, reducing water usage, reclaiming resources, and renewing wastewater into freshwater.

Environmental Services ๐Ÿ‡บ๐Ÿ‡ธ Woburn 859 2013
9
Flexconflexcon.com

A family-owned provider of innovative coatings, film laminations, and functional technologies, focused on creating sustainable solutions for a variety of markets globally

Plastics Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Spencer 695 1956
10
Kouraorbia-fem.com

Development and manufacture of fluoroproducts for electric vehicles, energy storage, infrastructure, refrigeration, and low-GWP inhaler propellants worldwide.

Chemical Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Boston 482 n/a
11
Chase Corporationchasecorp.com

A leading manufacturer of protective materials for high reliability applications, offering industrial coatings, tapes, adhesives, and sealants globally under trusted brand names

Chemical Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Westwood 481 1946
12
Aspen Aerogelsaerogel.com

A technology leader in sustainability, offering Aerogel solutions for global megatrends in resource efficiency, electrification, and sustainability across various industries

Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Northborough 455 2001
13
ICP Groupicpgroup.com

Supplier of professional building envelope, cementitious, and sports surface products with extensive brand portfolios and specialized training programs.

Wholesale Building Materials ๐Ÿ‡บ๐Ÿ‡ธ Andover 390 2016
14
Shawmut Corporationshawmutcorporation.com

A leading provider of engineered flexible multi-layer materials for automotive, medical, and other industries, with a focus on innovation and global expansion

Textile Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ West Bridgewater 380 1916
15
Caplugscaplugs.com

A global leader in custom molded components, masking solutions, and product protection with extensive manufacturing capabilities and a team of experts

Plastics and Rubber Product Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Burlington 357 1948
16
Web Industrieswebindustries.com

Precision converting and outsource manufacturing services for aerospace, energy, wire, commercial, consumer, and medical markets with flexible material solutions.

Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Marlborough 337 1969
17
Alphagary, an Orbia businessalphagary.com

A global leader in specialty polymer compounds and additives, offering sustainable solutions for various industries worldwide through innovative formulations and global distribution

Plastics Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Boston 331 1961
18
OrthoLiteortholite.com

A global leader in foam technology, creating innovative insoles for top footwear brands with a focus on comfort, performance, and sustainability

Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Amherst 326 1997
19
Cambridge Isotope Laboratories, Incisotope.com

Global leader in stable isotope separation and labeling for biochemical compounds, contributing to medical, research, and diagnostic advancements worldwide

Chemical Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Tewksbury 303 1981

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20
Bemis Associatesbemisworldwide.com

Bemis partners with leading brands to design and construct innovative, high-performance products, focusing on collaboration, creativity, and commitment to employees

Plastics Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Shirley 284 1910
21
Saint-Gobain Research North Americasgr-northamerica.saint-gobain.com

Innovative research lab developing ceramic and polymer solutions for energy efficiency, resource conservation, and various industries through advanced manufacturing processes

Research Services ๐Ÿ‡บ๐Ÿ‡ธ Northborough 187 1985
22
GreenLight Biosciencesgreenlightbiosciences.com

Develop and commercialize environmentally friendly, easy-to-use crop protection solutions leveraging natural methods to support sustainable farming practices.

Biotechnology Research ๐Ÿ‡บ๐Ÿ‡ธ Medford 182 2008
23
6K6kinc.com

Developing advanced materials through microwave plasma technology for additive manufacturing and battery storage, providing more sustainable, cost-effective solutions compared to traditional methods

Chemical Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ North Andover 157 2014
24
NEPTCOchasecorp.com

Global leader in engineering and manufacturing materials for commercial, industrial, and military applications, specializing in laminates, adhesives, and polymeric coatings for cables and electronics

Appliances, Electrical, and Electronics Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Westwood 99 1953
25
Saint-Gobain Ceramics - SGPlinkedin.com

The company designs and manufactures advanced ceramic materials for various industries worldwide, offering tailored solutions to meet tough application requirements

Glass, Ceramics and Concrete Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Worcester 82 n/a
26
Universal Plastics Corporationuniversalplastics.com

Custom plastic products manufacturer offering expertise in thermoforming, injection molding, and blow molding for various industries, with a focus on high quality and innovative solutions

Plastics Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Holyoke 73 1949
27
G&F Precision Molding, Inc.gandfprecision.com

Privately held custom injection molder offering thermoplastic and liquid silicone rubber molding, design, prototyping, mold making, and value add operations ISO certified for quality

Plastics Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Fiskdale 65 1963
28
Evolved By Naturebiotech.evolvedbynature.com

Biotech company creating sustainable molecules with Activated Silkโ„ข technology to improve product performance and environmental impact in various industries

Biotechnology Research ๐Ÿ‡บ๐Ÿ‡ธ Needham Heights 60 2013
29
Fosta-Tek Optics, Inc.fosta-tek.com

A leading US-based manufacturer of high-quality polymer components for optics and lenses, serving various industries with advanced coating and testing capabilities

Plastics Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Leominster 38 1991
30
Pittsfield Plastics Engineering, LLCpittsplas.com

Industry-leading injection molder and mold maker offering plastic spools, reels, cores, bobbins for packaging various products in a fully equipped manufacturing facility

Plastics Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Pittsfield 38 1968
31
Barbour Plastics, Inc.barbourplastics.com

Specializing in extruding premium thermoplastic profiles for various applications, with diverse equipment to process small to large profiles efficiently Delivering unmatched service and quality

Plastics Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Brockton 29 1970
32
Foundation Alloyfoundationalloy.com

This company specializes in transforming the metal parts manufacturing industry through advanced technology, offering superior mechanical properties and scalable manufacturing solutions

Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Cambridge 19 n/a
33
Ionic Materials, Incionicmaterials.com

Innovative polymer technology company creating customized solutions for energy storage, healthcare, and 5G applications to enable a better and safer world

Appliances, Electrical, and Electronics Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Woburn 14 2012
34
GXT Green, Incgxtgreen.com

A company that helps packaging and plastics industries reduce their environmental impact by providing sustainable, recyclable materials for various products

Plastics Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Billerica 10 2010
35
INDUSTRIAL POLYMERS & CHEMICALS, INC.industrial-polymers.com

Supplier of fiberglass reinforcements to the Abrasives Industry, offering cutting, coating, and kitting services for various materials Specializes in resin marketing and specialty sewing/assembly

Plastics Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Shrewsbury 10 1959
36
Multiscale Systemsmultiscalesystems.com

Innovative industrial solutions utilizing high-performance materials and advanced manufacturing techniques

Engineering Services ๐Ÿ‡บ๐Ÿ‡ธ Worcester 5 2018
37
AtoMe Inc

Innovative startup leveraging 3D printing and machine learning to design enhanced materials for energy, transportation, aviation, and aerospace industries

Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Ipswich 3 2023
38
GS Rubber Industries LLCgsrind.com

Manufacturer of standard & custom molded rubber products, including seals, gaskets, pet toys, and more Services include prototyping, compounding, molding, and engineering support

Mechanical Or Industrial Engineering ๐Ÿ‡บ๐Ÿ‡ธ Fall River 3 1994

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.

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