# The 30 largest companies with in-house R&D in Pittsburgh

Tamtam tracks 37 companies with in-house R&D headquartered in Pittsburgh. This list ranks the 30 largest by number of employees on LinkedIn, led by UPMC, PPG and Wabtec Corporation. Their median headcount is 2,199. Half of them were founded in 1950 or later.

These Pittsburgh-based companies with in-house R&D span a range of industries, with a notable presence in healthcare, manufacturing, and transportation. They include large established organizations like UPMC, a major healthcare provider and insurer, and PPG, which develops paints, coatings, and specialty materials. Wabtec Corporation provides equipment and digital solutions for freight rail and transit, while the University of Pittsburgh is a top-ranked public research institution.

The list also features Viatris, a global healthcare company with an extensive medicine portfolio, and Howmet Aerospace, a provider of advanced engineered solutions for aerospace. A common pattern observed is the significant representation of companies with long histories, such as PPG, founded in 1883, and Wabtec, established in 1869, indicating a strong foundation of traditional industries in the region.

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

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [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 |  |
| 2 | [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 |
| 3 | [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 |
| 4 | [University of Pittsburgh](https://www.tamtam.ai/c/university-of-pittsburgh) (pitt.edu)<br>Top-ranked public institution in Pennsylvania, member of leading research universities Known for innovative discoveries and shaping future paths | Higher Education | 🇺🇸 Pittsburgh | 19,349 | 1787 |
| 5 | [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 |  |
| 6 | [Allegheny Health Network](https://www.tamtam.ai/c/allegheny-health-network) (ahn.org)<br>Integrated healthcare delivery system with hospitals, medical centers, wellness pavilions, and numerous physician practices serving Western Pennsylvania. | Hospitals and Health Care | 🇺🇸 Pittsburgh | 11,676 |  |
| 7 | [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 |
| 8 | [United States Steel Corporation](https://www.tamtam.ai/c/united-states-steel-corporation) (ussteel.com)<br>Developing and delivering profitable, next-generation steel solutions focused on safety and meeting current and future customer needs. | Manufacturing | 🇺🇸 Pittsburgh | 6,794 | 1901 |
| 9 | [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 |  |
| 10 | [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 |
| 11 | [UPMC Children's Hospital of Pittsburgh](https://www.tamtam.ai/c/upmc-children-s-hospital-of-pittsburgh) (chp.edu)<br>A leader in treating childhood conditions, developing therapies, educating pediatricians, and advancing research with strong community support since 1890 | Hospitals and Health Care | 🇺🇸 Pittsburgh | 3,489 | 1890 |
| 12 | [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 |  |
| 13 | [Aurora](https://www.tamtam.ai/c/aurora-pittsburgh) (aurora.tech)<br>Aurora provides self-driving technology for transportation, making it safer, more accessible, and efficient for various vehicle types and industries | Software Development | 🇺🇸 Pittsburgh | 2,568 | 2017 |
| 14 | [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 |
| 15 | [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 |
| 16 | [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 |  |
| 17 | [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 |
| 18 | [Software Engineering Institute \| Carnegie Mellon University](https://www.tamtam.ai/c/software-engineering-institute-carnegie-mellon-university) (sei.cmu.edu)<br>The company conducts research on software engineering, cybersecurity, and AI, creating and testing innovative technologies for government and private industry since 1984 | Software Development | 🇺🇸 Pittsburgh | 1,061 | 1984 |
| 19 | [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 |
| 20 | [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 |
| 21 | [HarbisonWalker International](https://www.tamtam.ai/c/harbisonwalker-international) (thinkhwi.com)<br>A global leader in refractory products delivering solutions to industries worldwide with over 150 years of excellence in performance and value | Glass, Ceramics and Concrete Manufacturing | 🇺🇸 Pittsburgh | 809 | 2000 |
| 22 | [Carnegie Learning](https://www.tamtam.ai/c/carnegie-learning) (carnegielearning.com)<br>Innovative K-12 education technology company providing curriculum, professional learning, and tutoring solutions to support deep understanding and real-world applications | Education | 🇺🇸 Pittsburgh | 782 | 1994 |
| 23 | [Aerotech, Inc.](https://www.tamtam.ai/c/aerotech-inc) (aerotech.com)<br>This company specializes in designing and manufacturing precision motion control systems for various industries and research institutions worldwide | Automation Machinery Manufacturing | 🇺🇸 Pittsburgh | 760 | 1970 |
| 24 | [Industrial Scientific](https://www.tamtam.ai/c/industrial-scientific) (indsci.com)<br>Innovative company designs gas detection products to protect workers globally, pioneering technologies for detecting and responding to hazardous conditions in real time | Appliances, Electrical, and Electronics Manufacturing | 🇺🇸 Pittsburgh | 755 |  |
| 25 | [LB Foster](https://www.tamtam.ai/c/lb-foster) (lbfoster.com)<br>A leading provider of materials for transportation, construction, recreation, and agriculture projects, offering engineering, manufacturing, distribution, and service solutions globally | Transportation Equipment Manufacturing | 🇺🇸 Pittsburgh | 692 | 1902 |
| 26 | [Latitude AI](https://www.tamtam.ai/c/latitude-ai) (lat.ai)<br>A subsidiary of Ford Motor Company developing automated driving technologies to create safer, less stressful, and more enjoyable driving experiences | Technology, Information and Internet | 🇺🇸 Pittsburgh | 604 |  |
| 27 | [Upmc Passavant](https://www.tamtam.ai/c/upmc-passavant) (upmc.com)<br>A $23 billion nonprofit health enterprise with 92,000 employees, 40 hospitals, and over 8,000 licensed beds, providing global integrated healthcare services | Hospitals and Health Care | 🇺🇸 Pittsburgh | 590 |  |
| 28 | [Pittsburgh Glass Works](https://www.tamtam.ai/c/pittsburgh-glass-works) (vitro.com)<br>Global leader in OEM automotive glass manufacturing with 13 locations in US, Canada, and Poland, emphasizing innovation and growth through recent acquisitions and advancements | Motor Vehicle Parts Manufacturing | 🇺🇸 Pittsburgh | 513 | 2008 |
| 29 | [University of Pittsburgh Swanson School of Engineering](https://www.tamtam.ai/c/university-of-pittsburgh-swanson-school-of-engineering) (engineering.pitt.edu)<br>A top-ranked engineering program focusing on research in sustainability, energy systems, bioengineering, computational modeling, and advanced materials and manufacturing | Higher Education | 🇺🇸 Pittsburgh | 351 | 1846 |
| 30 | [Gecko Robotics](https://www.tamtam.ai/c/gecko-robotics) (geckorobotics.com)<br>The company provides complete solutions using wall-climbing robots, sensors, and AI to ensure the availability, reliability, and sustainability of critical infrastructure | Robotics Engineering | 🇺🇸 Pittsburgh | 323 | 2013 |

## 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

- [Companies with in-house R&D in the United States](https://www.tamtam.ai/l/r-and-d-companies-united-states) (6,796)
- [Companies with in-house R&D in California](https://www.tamtam.ai/l/r-and-d-companies-california) (1,275)
- [Companies with in-house R&D in Texas](https://www.tamtam.ai/l/r-and-d-companies-texas) (442)
- [Companies with in-house R&D in New York State](https://www.tamtam.ai/l/r-and-d-companies-new-york-state) (419)
- [Companies with in-house R&D in Massachusetts](https://www.tamtam.ai/l/r-and-d-companies-massachusetts) (396)
- [Companies with in-house R&D in Illinois](https://www.tamtam.ai/l/r-and-d-companies-illinois) (322)
- [Companies with in-house R&D in Michigan](https://www.tamtam.ai/l/r-and-d-companies-michigan) (287)
- [Companies with in-house R&D in Ohio](https://www.tamtam.ai/l/r-and-d-companies-ohio) (277)
- [Companies with in-house R&D in Pennsylvania](https://www.tamtam.ai/l/r-and-d-companies-pennsylvania) (255)
- [Companies with in-house R&D in New Jersey](https://www.tamtam.ai/l/r-and-d-companies-new-jersey) (224)
- [Companies with in-house R&D in Florida](https://www.tamtam.ai/l/r-and-d-companies-florida) (221)
- [Companies with in-house R&D in Alabama](https://www.tamtam.ai/l/r-and-d-companies-alabama) (215)
- [Companies with in-house R&D in Georgia](https://www.tamtam.ai/l/r-and-d-companies-georgia) (173)
- [Companies with in-house R&D in Virginia](https://www.tamtam.ai/l/r-and-d-companies-virginia) (166)
- [Companies with in-house R&D in North Carolina](https://www.tamtam.ai/l/r-and-d-companies-north-carolina) (158)
- [Companies with in-house R&D in Wisconsin](https://www.tamtam.ai/l/r-and-d-companies-wisconsin) (154)
- [Companies with in-house R&D in Minnesota](https://www.tamtam.ai/l/r-and-d-companies-minnesota) (146)
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- [Companies with in-house R&D in Colorado](https://www.tamtam.ai/l/r-and-d-companies-colorado) (113)
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- [Companies with in-house R&D in Indiana](https://www.tamtam.ai/l/r-and-d-companies-indiana) (104)
- [Companies with in-house R&D in New York](https://www.tamtam.ai/l/r-and-d-companies-new-york) (223)
- [Companies with in-house R&D in San Francisco](https://www.tamtam.ai/l/r-and-d-companies-san-francisco) (147)
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## The same list elsewhere

- [Companies with in-house R&D in the world](https://www.tamtam.ai/l/r-and-d-companies-in-the-world) (34,346)
- [Companies with in-house R&D in North America](https://www.tamtam.ai/l/r-and-d-companies-in-north-america) (7,619)

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Source: https://www.tamtam.ai/l/r-and-d-companies-pittsburgh