# 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.

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.

🇺🇸 Pittsburgh · 30 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [PNC](https://www.tamtam.ai/c/pnc) (pnc.com)<br>Provides financial services focused on managing money effectively to simplify clients' financial lives and support their life goals. | Financial Services | 🇺🇸 Pittsburgh | 64,159 |  |
| 2 | [UPMC](https://www.tamtam.ai/c/upmc) (upmc.com)<br>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 | 🇺🇸 Pittsburgh | 41,860 |  |
| 3 | [PPG](https://www.tamtam.ai/c/ppg) (ppg.com)<br>Development and delivery of paints, coatings, and specialty materials serving construction, consumer products, industrial, transportation, and aftermarket markets worldwide. | Paint, Coating, and Adhesive Manufacturing | 🇺🇸 Pittsburgh | 33,277 | 1883 |
| 4 | [Wabtec Corporation](https://www.tamtam.ai/c/wabtec-corporation) (wabteccorp.com)<br>Provider of equipment, systems, digital solutions, and services for freight rail, transit, mining, industrial, and marine transportation sectors. | Railroad Equipment Manufacturing | 🇺🇸 Pittsburgh | 27,000 | 1869 |
| 5 | [American Eagle Outfitters Inc.](https://www.tamtam.ai/c/american-eagle-outfitters-inc) (aeo-inc.com)<br>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 | 🇺🇸 Pittsburgh | 22,832 | 1977 |
| 6 | [Viatris](https://www.tamtam.ai/c/viatris) (viatris.com)<br>Global healthcare company providing extensive medicine portfolio and supply chain to deliver high-quality medicines addressing diverse health needs worldwide. | Pharmaceutical Manufacturing | 🇺🇸 Pittsburgh | 17,886 |  |
| 7 | [Alcoa](https://www.tamtam.ai/c/alcoa) (alcoa.com)<br>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 | 🇺🇸 Pittsburgh | 17,780 | 1888 |
| 8 | [Wesco](https://www.tamtam.ai/c/wesco) (wesco.com)<br>A leading provider of business-to-business distribution, logistics, and supply chain solutions with a diverse portfolio of products and services worldwide | Wholesale | 🇺🇸 Pittsburgh | 12,502 |  |
| 9 | [GNC](https://www.tamtam.ai/c/gnc) (gnc.com)<br>A global leader in health and wellness innovation offering trusted products to help people reach their goals and enhance self-care journeys | Retail | 🇺🇸 Pittsburgh | 10,422 |  |
| 10 | [Howmet Aerospace](https://www.tamtam.ai/c/howmet-aerospace) (howmet.com)<br>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 | 🇺🇸 Pittsburgh | 7,402 | 2020 |
| 11 | [Kennametal](https://www.tamtam.ai/c/kennametal) (kennametal.com)<br>A global industrial technology leader specializing in advanced materials innovation, tooling, and wear-resistant solutions to enhance productivity for various industries | Machinery Manufacturing | 🇺🇸 Pittsburgh | 6,659 |  |
| 12 | [K&L Gates](https://www.tamtam.ai/c/k-and-l-gates) (klgates.com)<br>Global law firm providing expert legal counsel across corporate, regulatory, and litigation matters for diverse industries and public sector clients. | Law Practice | 🇺🇸 Pittsburgh | 4,682 |  |
| 13 | [Arconic](https://www.tamtam.ai/c/arconic) (arconic.com)<br>A leading provider of aluminum products for automotive, aerospace, transportation, industrial, packaging, and construction markets, committed to innovation and advancement | Manufacturing | 🇺🇸 Pittsburgh | 4,672 | 2016 |
| 14 | [NEP Group, Inc.](https://www.tamtam.ai/c/nep-group-inc) (nepgroup.com)<br>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 | 🇺🇸 Pittsburgh | 4,569 |  |
| 15 | [Anixter](https://www.tamtam.ai/c/anixter) (anixter.com)<br>A global provider of distribution, logistics, and supply chain solutions, offering electrical, communications, security, and safety services to businesses worldwide | Wholesale | 🇺🇸 Pittsburgh | 3,757 | 1957 |
| 16 | [Excelitas Technologies Corp.](https://www.tamtam.ai/c/excelitas-technologies-corp) (excelitas.com)<br>Provider of advanced photonic technologies specializing in sensing, detection, imaging, optics, and specialty illumination for diverse global industries. | Manufacturing | 🇺🇸 Pittsburgh | 3,129 |  |
| 17 | [Matthews International](https://www.tamtam.ai/c/matthews-international) (matw.com)<br>Global provider of precision industrial technologies and memorialization products, serving industries and funeral homes with innovative, efficient solutions. | Manufacturing | 🇺🇸 Pittsburgh | 2,226 | 1850 |
| 18 | [University of Pittsburgh School of Medicine](https://www.tamtam.ai/c/university-of-pittsburgh-school-of-medicine) (medschool.pitt.edu)<br>Training physician leaders and scientists to improve health, advance research, promote equity, and collaborate internationally in medicine and education. | Higher Education | 🇺🇸 Pittsburgh | 2,199 | 1886 |
| 19 | [Industrial Coatings](https://www.tamtam.ai/c/industrial-coatings) (ppg.com)<br>Global provider of advanced coatings, paints, and specialty materials focused on protecting and enhancing industrial products and landmarks. | Wholesale Building Materials | 🇺🇸 Pittsburgh | 1,830 |  |
| 20 | [Federated Hermes](https://www.tamtam.ai/c/federated-hermes) (federatedhermes.com)<br>Global investment management firm providing equity, international, fixed income, alternative, and money market investment strategies since 1955. | Financial Services | 🇺🇸 Pittsburgh | 1,813 | 1955 |
| 21 | [Incture](https://www.tamtam.ai/c/incture) (incture.com)<br>A digital systems company delivering intelligent applications and services to enhance lives and address complex business challenges at scale using SAP technology | Software Development | 🇺🇸 Pittsburgh | 1,159 | 2006 |
| 22 | [TMS International LLC](https://www.tamtam.ai/c/tms-international-llc) (tmsinternational.com)<br>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 | 🇺🇸 Pittsburgh | 1,146 | 1926 |
| 23 | [Aires](https://www.tamtam.ai/c/aires) (aires.com)<br>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 | 🇺🇸 Pittsburgh | 1,118 | 1981 |
| 24 | [Koppers Inc.](https://www.tamtam.ai/c/koppers-inc) (koppers.com)<br>A global wood preservation technology company creating environmentally responsible solutions for various industries, with a focus on safety and sustainability | Chemical Manufacturing | 🇺🇸 Pittsburgh | 1,080 | 1988 |
| 25 | [Talogy](https://www.tamtam.ai/c/talogy) (talogy.com)<br>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 | 🇺🇸 Pittsburgh | 1,036 | 1946 |
| 26 | [TIMET](https://www.tamtam.ai/c/timet) (timet.com)<br>A leading producer of titanium melted and mill products for various industries worldwide, offering a wide range of high-quality titanium products | Mining | 🇺🇸 Pittsburgh | 1,028 | 1950 |
| 27 | [Confluence](https://www.tamtam.ai/c/confluence) (confluence.com)<br>provides technology solutions for investment management, offering products for performance, risk, data, regulatory, and investor reporting needs globally | Financial Services | 🇺🇸 Pittsburgh | 929 | 1991 |
| 28 | [Liberty Tire Recycling, LLC](https://www.tamtam.ai/c/liberty-tire-recycling-llc) (libertytire.com)<br>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 | 🇺🇸 Pittsburgh | 927 | 2000 |
| 29 | [SMS group USA](https://www.tamtam.ai/c/sms-group-usa) (sms-group.com)<br>A leader in providing new equipment, maintenance, and spare parts services for metals producers in North America and globally | Machinery Manufacturing | 🇺🇸 Pittsburgh | 919 |  |
| 30 | [Caliber Technologies](https://www.tamtam.ai/c/caliber-technologies) (caliberuniversal.com)<br>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 | 🇺🇸 Pittsburgh | 885 | 2001 |

## 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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## The same list elsewhere in United States

- [Multinational companies in the United States](https://www.tamtam.ai/l/multinational-companies-united-states) (16,197)
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- [Multinational companies in Alabama](https://www.tamtam.ai/l/multinational-companies-alabama) (418)
- [Multinational companies in Virginia](https://www.tamtam.ai/l/multinational-companies-virginia) (396)
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## The same list elsewhere

- [Multinational companies in the world](https://www.tamtam.ai/l/multinational-companies-in-the-world) (74,925)
- [Multinational companies in North America](https://www.tamtam.ai/l/multinational-companies-in-north-america) (18,660)

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Source: https://www.tamtam.ai/l/multinational-companies-pittsburgh