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The 30 largest multinational companies in Pittsburgh

Tamtam tracks 55 multinational companies headquartered in Pittsburgh. This list ranks the 30 largest by number of employees on LinkedIn, led by PNC, UPMC and PPG. Their median headcount is 3,757. Half of them were founded in 1957 or later.

馃嚭馃嚫 Pittsburgh30 companiesUpdated Nov 12, 2026

This selection of multinational companies in Pittsburgh shows a concentration of large corporations across diverse sectors. Key players include PNC, a financial services provider, and UPMC, a major healthcare provider and insurer. PPG specializes in paints and coatings, while Wabtec Corporation supplies equipment for freight rail and transit. Retail is represented by American Eagle Outfitters Inc. and GNC, a health and wellness innovator. Viatris is a global healthcare company, and Alcoa is a leader in bauxite, alumina, and aluminum products.

The companies listed exhibit a mix of established industrial giants and modern service providers. Many are headquartered in Pittsburgh, indicating the city's role as a corporate hub. The industries range from traditional manufacturing and mining to advanced technology and global financial and legal services, reflecting a diversified economic landscape.

#CompanyIndustryHeadquarters EmployeesFounded
1
PNCpnc.com

Provides financial services focused on managing money effectively to simplify clients' financial lives and support their life goals.

Financial Services 馃嚭馃嚫 Pittsburgh 64,159 n/a
2
UPMCupmc.com

A leading health care provider and insurer in Pittsburgh, offering patient-centered care, innovative models, and community benefits through hospitals and insurance services

Hospitals and Health Care 馃嚭馃嚫 Pittsburgh 41,860 n/a
3
PPGppg.com

Development and delivery of paints, coatings, and specialty materials serving construction, consumer products, industrial, transportation, and aftermarket markets worldwide.

Paint, Coating, and Adhesive Manufacturing 馃嚭馃嚫 Pittsburgh 33,277 1883
4
Wabtec Corporationwabteccorp.com

Provider of equipment, systems, digital solutions, and services for freight rail, transit, mining, industrial, and marine transportation sectors.

Railroad Equipment Manufacturing 馃嚭馃嚫 Pittsburgh 27,000 1869
5
American Eagle Outfitters Inc.aeo-inc.com

Global omni-channel retailer offering high-quality apparel, intimates, activewear, and personal care products through diverse brands focused on optimistic self-expression and social responsibility.

Retail 馃嚭馃嚫 Pittsburgh 22,832 1977
6
Viatrisviatris.com

Global healthcare company providing extensive medicine portfolio and supply chain to deliver high-quality medicines addressing diverse health needs worldwide.

Pharmaceutical Manufacturing 馃嚭馃嚫 Pittsburgh 17,886 n/a
7
Alcoaalcoa.com

Global industry leader in bauxite, alumina, and aluminum products, focused on reinventing the aluminum industry for a sustainable future through innovation and best practices

Mining 馃嚭馃嚫 Pittsburgh 17,780 1888
8
Wescowesco.com

A leading provider of business-to-business distribution, logistics, and supply chain solutions with a diverse portfolio of products and services worldwide

Wholesale 馃嚭馃嚫 Pittsburgh 12,502 n/a
9
GNCgnc.com

A global leader in health and wellness innovation offering trusted products to help people reach their goals and enhance self-care journeys

Retail 馃嚭馃嚫 Pittsburgh 10,422 n/a
10
Howmet Aerospacehowmet.com

A global provider of advanced engineered solutions for aerospace and transportation industries, specializing in jet engine components, aerospace fastening systems, and titanium structural parts

Aviation and Aerospace Component Manufacturing 馃嚭馃嚫 Pittsburgh 7,402 2020
11
Kennametalkennametal.com

A global industrial technology leader specializing in advanced materials innovation, tooling, and wear-resistant solutions to enhance productivity for various industries

Machinery Manufacturing 馃嚭馃嚫 Pittsburgh 6,659 n/a
12
K&L Gatesklgates.com

Global law firm providing expert legal counsel across corporate, regulatory, and litigation matters for diverse industries and public sector clients.

Law Practice 馃嚭馃嚫 Pittsburgh 4,682 n/a
13
Arconicarconic.com

A leading provider of aluminum products for automotive, aerospace, transportation, industrial, packaging, and construction markets, committed to innovation and advancement

Manufacturing 馃嚭馃嚫 Pittsburgh 4,672 2016
14
NEP Group, Inc.nepgroup.com

Worldwide live sports and entertainment production services using advanced technology and expert teams to deliver reliable, innovative media solutions for major events.

Broadcast Media Production and Distribution 馃嚭馃嚫 Pittsburgh 4,569 n/a
15
Anixteranixter.com

A global provider of distribution, logistics, and supply chain solutions, offering electrical, communications, security, and safety services to businesses worldwide

Wholesale 馃嚭馃嚫 Pittsburgh 3,757 1957

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16
Excelitas Technologies Corp.excelitas.com

Provider of advanced photonic technologies specializing in sensing, detection, imaging, optics, and specialty illumination for diverse global industries.

Manufacturing 馃嚭馃嚫 Pittsburgh 3,129 n/a
17
Matthews Internationalmatw.com

Global provider of precision industrial technologies and memorialization products, serving industries and funeral homes with innovative, efficient solutions.

Manufacturing 馃嚭馃嚫 Pittsburgh 2,226 1850
18
University of Pittsburgh School of Medicinemedschool.pitt.edu

Training physician leaders and scientists to improve health, advance research, promote equity, and collaborate internationally in medicine and education.

Higher Education 馃嚭馃嚫 Pittsburgh 2,199 1886
19
Industrial Coatingsppg.com

Global provider of advanced coatings, paints, and specialty materials focused on protecting and enhancing industrial products and landmarks.

Wholesale Building Materials 馃嚭馃嚫 Pittsburgh 1,830 n/a
20
Federated Hermesfederatedhermes.com

Global investment management firm providing equity, international, fixed income, alternative, and money market investment strategies since 1955.

Financial Services 馃嚭馃嚫 Pittsburgh 1,813 1955
21
Inctureincture.com

A digital systems company delivering intelligent applications and services to enhance lives and address complex business challenges at scale using SAP technology

Software Development 馃嚭馃嚫 Pittsburgh 1,159 2006
22
TMS International LLCtmsinternational.com

A global leader in providing on-site steel mill services, focused on safety, innovation, environmental protection, and creating value for customers through expertise and unrivaled service

Mining 馃嚭馃嚫 Pittsburgh 1,146 1926
23
Airesaires.com

Global relocation solutions provider recognized for client partnerships, technology, quality service, and certifications in ISO, FIDI-FAIM, C-TPAT, and Privacy Shield Visit wwwairescom

Human Resources Services 馃嚭馃嚫 Pittsburgh 1,118 1981
24
Koppers Inc.koppers.com

A global wood preservation technology company creating environmentally responsible solutions for various industries, with a focus on safety and sustainability

Chemical Manufacturing 馃嚭馃嚫 Pittsburgh 1,080 1988
25
Talogytalogy.com

Experts in talent management crafting solutions for screening, selecting, developing, and engaging talent worldwide using psychology and technology for data-driven decisions

Human Resources Services 馃嚭馃嚫 Pittsburgh 1,036 1946
26
TIMETtimet.com

A leading producer of titanium melted and mill products for various industries worldwide, offering a wide range of high-quality titanium products

Mining 馃嚭馃嚫 Pittsburgh 1,028 1950
27
Confluenceconfluence.com

provides technology solutions for investment management, offering products for performance, risk, data, regulatory, and investor reporting needs globally

Financial Services 馃嚭馃嚫 Pittsburgh 929 1991
28
Liberty Tire Recycling, LLClibertytire.com

Reclaims over four billion pounds of scrap tires annually, transforming waste into sustainable products through a network of North American processing facilities.

Renewable Energy Semiconductor Manufacturing 馃嚭馃嚫 Pittsburgh 927 2000
29
SMS group USAsms-group.com

A leader in providing new equipment, maintenance, and spare parts services for metals producers in North America and globally

Machinery Manufacturing 馃嚭馃嚫 Pittsburgh 919 n/a
30
Caliber Technologiescaliberuniversal.com

Leading provider of integrated quality management platform solutions for regulated industries, specializing in Life Sciences and Pharmaceuticals, with a global presence

IT Services and IT Consulting 馃嚭馃嚫 Pittsburgh 885 2001

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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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