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49 leading manufacturers in Connecticut

Tamtam tracks 49 manufacturers headquartered in Connecticut. This list ranks all of them by number of employees on LinkedIn, led by Stanley Black & Decker, Inc., ITT Inc. and Terex Corporation. Their median headcount is 629. Half of them were founded in 1963 or later. The most common headquarters are Stamford (9), Danbury (4) and Bristol (3).

馃嚭馃嚫 Connecticut49 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
Stanley Black & Decker, Inc.stanleyblackanddecker.com

Provider of tools, fasteners, and infrastructure systems supporting home repair, automotive security, construction, and energy industries with innovation and safety.

Manufacturing 馃嚭馃嚫 New Britain 29,460 n/a
2
ITT Inc.itt.com

A global technology company providing cutting-edge solutions in motion technologies, industrial process, and connect and control technologies across various industries worldwide

Industrial Machinery Manufacturing 馃嚭馃嚫 Stamford 9,330 n/a
3
Terex Corporationterex.com

A global manufacturing company focused on building essential machines, improving lives, volunteering, and maintaining a safe, inclusive work environment

Machinery Manufacturing 馃嚭馃嚫 Norwalk 8,109 1933
4
Hubbell Incorporatedhubbell.com

Manufacturer of utility and electrical solutions focused on grid modernization, clean energy, electrification, and energy efficiency worldwide.

Appliances, Electrical, and Electronics Manufacturing 馃嚭馃嚫 Shelton 7,655 1888
5
Praxair, Inc - a Linde Companylindeus.com

A global leader in industrial gases and engineering, providing high-quality gases, technologies, and services to diverse markets while promoting sustainability and productivity

Chemical Manufacturing 馃嚭馃嚫 Danbury 6,549 n/a
6
Amphenolamphenol.com

A Fortune 500 manufacturer with 90,000 employees worldwide, providing key components for electronic devices and networks in daily use

Appliances, Electrical, and Electronics Manufacturing 馃嚭馃嚫 Wallingford 5,559 n/a
7
Crane Companycraneco.com

Long-standing ethical business focused on innovation, disciplined management, strategic acquisitions, and creating value for customers, suppliers, and shareholders.

Manufacturing 馃嚭馃嚫 Stamford 4,696 1855
8
Hexcel Corporationhexcel.com

Production of carbon fiber reinforcements, resin systems, and honeycomb materials focused on lightweight solutions for commercial aerospace industry.

Aviation and Aerospace Component Manufacturing 馃嚭馃嚫 Stamford 3,357 1948
9
Ethan Allen Global, Inc.ethanallen.com

Innovative furniture retailer with a wide range of styles, offering customization options and environmentally sustainable products, emphasizing excellent service and community involvement

Retail 馃嚭馃嚫 Danbury 2,765 n/a
10
Barnesbarnesaero.com

A company known for persistent ingenuity, pushing boundaries to help customers make valuable impacts in global markets

Industrial Machinery Manufacturing 馃嚭馃嚫 Bristol 2,125 1857
11
Pepperidge Farmpepperidgefarm.com

A company specializing in beloved brands such as Goldfish crackers, Milano cookies, and bread products, driven by innovation and a legacy of passion for wholesome happiness

Manufacturing 馃嚭馃嚫 Norwalk 2,121 1937
12
Cristaltronox.com

A leading producer of titanium dioxide and zircon products, with a global footprint in mining, processing, and sale of mineral sands

Chemical Manufacturing 馃嚭馃嚫 Stamford 2,050 n/a
13
Linde Gas & Equipmentlindedirect.com

A trusted provider of industrial gases, welding supplies, cutting machines, and automation, offering solutions to reduce costs and increase productivity

Chemical Manufacturing 馃嚭馃嚫 Danbury 1,552 n/a
14
BlueTriton Brandsbluetriton.com

A leading provider of responsibly sourced spring and purified water products, promoting sustainability through natural resource management and community engagement

Food and Beverage Services 馃嚭馃嚫 Stamford 1,249 n/a
15
Aurobindo Pharma USA, Inc.aurobindousa.com

Provider of affordable generic pharmaceuticals with a broad portfolio of over 150 product families across various therapeutic categories Recognized for rapid growth and high prescription dispensing

Pharmaceutical Manufacturing 馃嚭馃嚫 East Windsor 1,198 1994
16
TRUMPF North Americatrumpf.com

Leading provider of sheet metal fabrication machinery and industrial lasers, focusing on innovative, networked manufacturing solutions in North America.

Machinery Manufacturing 馃嚭馃嚫 Farmington 987 1969
17
Winchester Interconnectwinconn.com

Specializing in precision-engineered interconnect solutions, we design and deliver cutting-edge connectivity solutions across various industries with global manufacturing capabilities

Manufacturing 馃嚭馃嚫 Milford 966 1941
18
Blue Buffalobluebuffalo.com

Blue Buffalo is a leading provider of premium, all-natural pet nutrition products, known for strong marketing, a wide product range, and staffed in-store specialists

Food and Beverage Manufacturing 馃嚭馃嚫 Wilton 904 n/a
19
Purdue Pharma L.P.purduepharma.com

A pharmaceutical company developing, manufacturing, and marketing medications and consumer health products, focusing on opioid abatement and public health interests

Pharmaceutical Manufacturing 馃嚭馃嚫 Stamford 787 n/a
20
Philip Morris International U.S.uspmi.com

Manufacturer and distributor of chewing tobacco, snus, cigars, nicotine pouches, matches, and lighters in the US market Operations based in Virginia and Kentucky

Manufacturing 馃嚭馃嚫 Stamford 740 1985
21
Ensign-Bickford Aerospace & Defense Company (EBAD)ebad.com

Global leader in precision energetics systems and explosive solutions, offering customized hardware and systems solutions for aerospace and defense missions worldwide

Defense and Space Manufacturing 馃嚭馃嚫 Simsbury 734 1836
22
UPCmaagkit.com

This company produces innovative products to simplify tasks and improve efficiency, such as advanced kitting systems and adjustable length position sensors

Aviation and Aerospace Component Manufacturing 馃嚭馃嚫 Meriden 713 2008
23
OMEGA Engineeringdwyeromega.com

Supplier of over 165,000 products for measuring temperature, humidity, flow, level, and pressure Specializing in thermocouples, gauges, data loggers, heaters, and more

Appliances, Electrical, and Electronics Manufacturing 馃嚭馃嚫 Norwalk 699 1962
24
Photronicsphotronics.com

Industry leader in designing, developing, and producing reticles and photomasks for semiconductor and microelectronic applications with nine global manufacturing facilities

Semiconductor Manufacturing 馃嚭馃嚫 Brookfield 640 1969
25
Ruger Firearmsruger.com

Manufactures rugged, reliable firearms for commercial sporting market with nearly 700 variations across 40 product lines, emphasizing responsibility.

Sporting Goods Manufacturing 馃嚭馃嚫 Southport 629 1949
26
Cannondalecannondale.com

Innovative bicycle company since 1971, focused on inspiring the world to ride and improving cycling through relentless innovation and global reach

Sporting Goods Manufacturing 馃嚭馃嚫 Wilton 611 1971
27
CooperSurgical Fertility Solutionscoopersurgical.com

Global leader in IVF and reproductive genetics, providing innovative products and services for every step in the assisted reproductive technology journey.

Medical Equipment Manufacturing 馃嚭馃嚫 Trumbull 578 2018
28
ASSA ABLOY Opening Solutions Americasassaabloydss.com

Provider of door opening products and access solutions for homes, businesses, and institutions, offering doors, hardware, locks, access control, and services

Construction Hardware Manufacturing 馃嚭馃嚫 New Haven 573 1994
29
Drew Marinedrew-marine.com

Global leader in providing technical solutions and services to the maritime industry for over 80 years, offering a wide range of products and services worldwide

Chemical Manufacturing 馃嚭馃嚫 Waterbury 328 1920
30
Mitsubishi Power Aeropower.mhi.com

A global leader in providing fast-track power solutions to power producers and industrial customers, specializing in aero-derivative gas turbines and battery storage

Oil and Gas 馃嚭馃嚫 Glastonbury 273 1961
31
Mobil Chemical Companyexxonmobilchemical.com

Offering a wide range of petrochemical and polymer products, with upcoming updates on MCC content

Chemical Manufacturing 馃嚭馃嚫 Stratford 244 1960
32
Carling Technologiescarlingtech.com

A global leader in circuit protection, switching, and power distribution, providing innovative solutions for various industries to ensure safety and reliability

Manufacturing 馃嚭馃嚫 Plainville 210 1920
33
Franklinfranklinproductsinc.com

A leading manufacturer providing innovative engineering solutions and products for the airline industry, focusing on aesthetics, ergonomics, and technology

Airlines and Aviation 馃嚭馃嚫 Torrington 172 1988
34
Crossbridge Energycrossbridge.dk

Global company owning and managing energy infrastructure as it transitions, contributing to the sustainable energy industry on an international scale

Oil and Gas 馃嚭馃嚫 Darien 100 2021
35
Straton Industriesstraton.com

Certified contract manufacturer of molds, tools, dies & stampings with CNC machining, turning, grinding, EDM, welding, molding, stamping, serving various industries

Machinery Manufacturing 馃嚭馃嚫 Stratford 66 1961
36
Thinklogicalthinklogical.com

Manufacturing high-performance signal extension and switching products for secure video distribution systems and KVM matrix switches within defense and intelligence command centers.

IT Services and IT Consulting 馃嚭馃嚫 Milford 65 2003
37
Canidaecanidae.com

A company dedicated to providing high quality pet food, promoting pet happiness and health, and embracing sustainable business practices

Manufacturing 馃嚭馃嚫 Stamford 59 n/a
38
Hampford Research Inchampfordresearch.com

Specialty chemical manufacturer in electronics, adhesive, printing, personal care/dental industries Known for intelligence, service, fostering alliances, partnerships, and continuous improvement

Chemical Manufacturing 馃嚭馃嚫 Stratford 31 1982
39
Supreme-Lake Manufacturing, Inc.supremelake.com

A machinery company based in Connecticut, specializing in the manufacturing of various industrial equipment and machinery products

Machinery Manufacturing 馃嚭馃嚫 Plantsville 19 n/a
40
Frank Roth Co., Inc.frankroth.com

This engineering and manufacturing firm offers process engineering, parts engineering, machining, welding, project management, inventory management, and quality control services

Industrial Machinery Manufacturing 馃嚭馃嚫 Stratford 18 n/a
41
GEMCO Manufacturing Co., Inc.gemcomfg.com

Global manufacturing company specialized in precision metal components, custom stampings, wire forms, and more for various industries worldwide with in-house engineering services

Machinery Manufacturing 馃嚭馃嚫 Southington 16 1943
42
ProMATIC Automation, an AGR companypromaticautomation.com

Provider of custom industrial automation services and equipment, with expertise in designing and building manufacturing lean cells and fully automated assembly equipment

Automation Machinery Manufacturing 馃嚭馃嚫 Bristol 16 2000
43
Wieland Dental Systems Inc.Wieland-Dental-Systems.com

A leading German company specializing in dental prosthetics, restorative materials, and CAD/CAM digital technology, with a focus on innovation and global distribution

Medical Equipment Manufacturing 馃嚭馃嚫 Danbury 12 1871
44
B&B Tool Co., Inc.bbtoolco.com

Manufacturing company specializing in high precision CNC and manual machined components for various industries including OEM, medical, packaging, aerospace, and more

Machinery Manufacturing 馃嚭馃嚫 Bristol 11 1963
45
Frasal Tool Co., Inc.frasaltool.com

Global supplier of precision components, aerospace tooling, complex assemblies, and fixtures, offering cost-effective engineering, project management, and manufacturing services for various industries

Machinery Manufacturing 馃嚭馃嚫 Newington 10 1972
46
Action Packaging Systems, Inc.actionpkg.com

A dedicated partner for labels, label application equipment, and pre-press Specializing in exceptional customer service, urgency, and quality using advanced equipment

Printing Services 馃嚭馃嚫 Ellington 9 1979
47
Cooper Split Roller Bearingcooperbearings.com

Manufacturing and distributing split roller bearings for machinery applications from their location in Norfolk, VA, United States

Machinery Manufacturing 馃嚭馃嚫 Norfolk 8 n/a
48
BonJo Coffee Roastersbonjocoffee.com

Family-owned coffee roasting company in Stamford, CT since 1981 Sources, roasts, and provides quality coffee to cafes, restaurants, hotels, and retailers in CT and NY

Food and Beverage Services 馃嚭馃嚫 Stamford 6 1981
49
Greer Manufacturing Incgreermfg.com

A leading precision machining company that takes products from conception to completion, ensuring top-quality manufacturing services

Machinery Manufacturing 馃嚭馃嚫 Prospect 3 n/a

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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 Oct 24, 2026.

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