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100 leading multinational companies in Pennsylvania

Tamtam tracks 472 multinational companies headquartered in Pennsylvania. This list ranks the 100 largest by number of employees on LinkedIn, led by Comcast, EPAM Systems and PNC. Their median headcount is 5,445. Half of them were founded in 1969 or later. The most common headquarters are Philadelphia (19), Pittsburgh (18) and Conshohocken (4).

馃嚭馃嚫 Pennsylvania100 companiesUpdated Nov 11, 2026

This list features large multinational companies based in Pennsylvania, primarily focusing on financial services, technology, and manufacturing. Many of these firms have a long history, with several founded in the 19th or mid-20th century. Key examples include Comcast, a telecommunications and entertainment provider; EPAM Systems, a global digital transformation services provider; PNC, offering financial services; and PPG, a developer of paints and coatings.

A notable pattern is the concentration of headquarters in Pittsburgh and Philadelphia, indicating these cities are significant economic hubs within the state. The companies represent a mix of sectors, from traditional industries like chemical manufacturing with Air Products to modern IT services such as Unisys, highlighting Pennsylvania's diverse industrial landscape.

#CompanyIndustryHeadquarters EmployeesFounded
1
Comcastcomcast.com

Delivering broadband, mobile, and video products, along with entertainment, sports, news, and theme park experiences; driven by passionate creators and innovators

Telecommunications 馃嚭馃嚫 Philadelphia 189,000 1963
2
EPAM Systemsepam.com

Global digital transformation services provider specializing in product development and engineering, creating better enterprise, education, and health platforms worldwide

IT Services and IT Consulting 馃嚭馃嚫 Newtown 66,049 1993
3
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
4
Aramarkaramark.com

Global hospitality service provider delivering food and facilities management to educational institutions, healthcare providers, sports teams, and municipalities across sixteen countries worldwide.

Hospitality 馃嚭馃嚫 Philadelphia 56,723 1939
5
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
6
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
7
Penn State Universitypsu.edu

Providing interdisciplinary education and resources across multiple campuses, fostering student success and positive global community impact through knowledge and experience.

Higher Education 馃嚭馃嚫 University Park 31,986 1855
8
Vanguardvanguard.com

A community-oriented investment firm focused on helping investors achieve their goals by keeping costs low and aligning investor interests with company goals

Financial Services 馃嚭馃嚫 Valley Forge 28,472 1975
9
URBN (Urban Outfitters, Anthropologie Group, Free People & Nuuly)urbn.com

Global portfolio of creative consumer brands offering apparel, home goods, and lifestyle products with a focus on creativity and community.

Retail Apparel and Fashion 馃嚭馃嚫 Philadelphia 27,613 1970
10
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
11
Penske Transportation Solutionsgopenske.com

A provider of transportation, supply chain, and technology solutions to drive global progress through Penske Truck Leasing, Penske Logistics, and related businesses

Transportation, Logistics, Supply Chain and Storage 馃嚭馃嚫 Reading 23,946 1969
12
Unisysunisys.com

A global technology solutions company offering digital workplace, cloud, applications & infrastructure, enterprise computing, and business process solutions to empower organizations

IT Services and IT Consulting 馃嚭馃嚫 Blue Bell 23,358 n/a
13
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
14
Air Productsairproducts.com

Supplier of industrial gases serving over 250,000 customers in more than 50 countries worldwide with diverse applications.

Chemical Manufacturing 馃嚭馃嚫 Allentown 20,000 1940
15
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
16
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
17
ResultsCXresultscx.com

ResultsCX provides transformational Customer Experience Management solutions to global brands, driving superior customer outcomes in various industries for over 30 years

Outsourcing and Offshoring Consulting 馃嚭馃嚫 Norristown 15,549 n/a
18
Mylanviatris.com

Empowering people worldwide to live healthier at every stage of life through a merger with Upjohn, now known as Viatris

Pharmaceutical Manufacturing 馃嚭馃嚫 Canonsburg 15,198 n/a
19
Temple Universitytemple.edu

A top-tier research institution in a vibrant city, offering diverse degree programs to prepare future leaders for impactful careers

Higher Education 馃嚭馃嚫 Philadelphia 13,124 1884
20
Avantorvwr.com

A global provider of mission-critical products and services for biopharma, healthcare, education, and advanced technologies industries, setting science in motion worldwide

Biotechnology Research 馃嚭馃嚫 Radnor Township 13,000 1904
21
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
22
FMC Corporationfmc.com

The company is dedicated to innovating sustainable technologies to protect crops, support farmers, and tackle agriculture's challenges using science

Agricultural Chemical Manufacturing 馃嚭馃嚫 Philadelphia 11,986 1883
23
Penske Logisticspenskelogistics.com

provider of dedicated transportation, distribution management, 4PL, freight brokerage, and technology solutions for diverse industries worldwide

Transportation, Logistics, Supply Chain and Storage 馃嚭馃嚫 Reading 11,808 1969
24
Penske Truck Leasingpensketruckleasing.com

Provider of full-service truck leasing, fleet maintenance, rentals, used trucks, and technology solutions across North America.

Transportation, Logistics, Supply Chain and Storage 馃嚭馃嚫 Reading 11,726 1969
25
UHSuhs.com

A leading healthcare provider with a focus on compassionate care, operating hospitals, behavioral health facilities, outpatient facilities, and ambulatory care access points

Hospitals and Health Care 馃嚭馃嚫 King of Prussia 11,329 1979
26
The Hershey Companythehersheycompany.com

Leading global snacks company producing iconic confectionery brands, committed to quality products, community support, and educational initiatives.

Manufacturing 馃嚭馃嚫 Hershey 11,057 1894
27
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
28
Teleflexteleflex.com

Provides diverse medical technologies and solutions across various therapy areas, improving health and quality of life for people worldwide through purpose-driven innovation.

Medical Equipment Manufacturing 馃嚭馃嚫 Wayne 9,909 1943
29
QVCcareers.qvcgrp.com

The company provides a unique shopping experience through a diverse range of products, engaging stories, and exceptional customer service worldwide

Retail 馃嚭馃嚫 West Chester 9,215 1986
30
Urban Outfittersurbn.com

A lifestyle retailer creating inspiring retail environments with a curated mix of women's, men's, accessories, and home products

Retail Apparel and Fashion 馃嚭馃嚫 Philadelpia 8,092 1970
31
Free Peopleurbn.com

Specialty clothing brand for women with latest trends and vintage collections, offering apparel, shoes, and accessories emphasizing femininity, spirit, and creativity

Retail Apparel and Fashion 馃嚭馃嚫 Philadelphia 7,889 1984
32
Axaltaaxalta.com

A global provider of performance coatings for industrial, automotive, and refinish applications, focused on innovation for a sustainable future

Chemical Manufacturing 馃嚭馃嚫 Philadelphia 7,744 2013
33
B. Braun Medical Inc. (US)bbraunusa.com

A global healthcare leader specializing in infusion therapy, pain management, nutrition, pharmacy admixture, and dialysis products and services Committed to safety and innovation

Medical Equipment Manufacturing 馃嚭馃嚫 Bethlehem 7,619 1839
34
CTDIlinktr.ee

A global engineering and logistics company founded in 1975, specializing in repair, refurbishment, and logistics services for the communications industry

Telecommunications 馃嚭馃嚫 West Chester 7,614 1975
35
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
36
Coherent Corp.coherent.com

Development and delivery of breakthrough technologies and innovations for industrial, communications, electronics, and instrumentation market applications worldwide.

Semiconductor Manufacturing 馃嚭馃嚫 Saxonburg 7,389 1971
37
Clarioclario.com

A leading healthcare research and technology company providing expertise and technology for advancing clinical trials in various therapeutic areas worldwide

Biotechnology Research 馃嚭馃嚫 Philadelphia 7,151 1972
38
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
39
AmerisourceBergenamerisourcebergen.com

Global pharmaceutical solutions organization focused on improving lives, facilitating market access, and delivering healthcare products while uniting 46,000+ team members to create healthier futures

Hospitals and Health Care 馃嚭馃嚫 Conshohocken 6,629 n/a
40
Ansysansys.com

Delivering silicon design breakthroughs and IP to enable rapid innovation of AI-powered products across multiple high-tech industries.

Software Development 馃嚭馃嚫 Canonsburg 6,283 1970
41
West Pharmaceutical Serviceswestpharma.com

provider of high-quality injectable components and devices ensuring safe, effective delivery and containment of medicines worldwide

Pharmaceutical Manufacturing 馃嚭馃嚫 Exton 6,268 1923
42
EnerSysenersys.com

Global leader in stored energy solutions for industrial applications, offering motive power, reserve power, aerospace/defense, specialty batteries, and integrated services worldwide

Appliances, Electrical, and Electronics Manufacturing 馃嚭馃嚫 Reading 6,257 n/a
43
Anthropologieurbn.com

A lifestyle destination promoting creativity, optimism, and inspiration through unique artisan products, engaging with a community of creative-minded individuals

Retail Apparel and Fashion 馃嚭馃嚫 Philadelphia 6,242 1992
44
Saint-Gobain North Americasaint-gobain-northamerica.com

A global leader in sustainable construction materials and services, dedicated to enhancing buildings' efficiency and reducing carbon emissions by 2050

Wholesale Building Materials 馃嚭馃嚫 Malvern 5,971 1665
45
AMETEKametek.com

Global provider of industrial technology solutions with over $60 billion in annual sales, serving niche markets with differentiated technology solutions and focused on shareholder value generation

Manufacturing 馃嚭馃嚫 Berwyn 5,963 1930
46
Crown Holdings, Inc.crowncork.com

Design manufacture and sale of steel and aluminum cans, glass bottles, closures, and industrial packaging products and equipment worldwide.

Packaging and Containers Manufacturing 馃嚭馃嚫 Yardley 5,891 1892
47
Asplundh Tree Expert, LLCasplundh.com

A company specializing in safe and efficient line clearance services for utilities, as well as vegetation management for various industries

Environmental Services 馃嚭馃嚫 Willow Grove 5,645 1928
48
Bentley Systemsbentley.com

Innovative software for infrastructure engineering, design, construction, and operations, advancing global economy and environment with industry-leading solutions in multiple sectors worldwide

Software Development 馃嚭馃嚫 Exton 5,633 1984
49
Aramark Refreshmentsaramarkrefreshments.com

Providing transformative and retail-inspired experiences in break-rooms with a focus on hospitality to refresh and inspire guests

Food and Beverage Services 馃嚭馃嚫 Philadelphia 5,595 n/a
50
PSA BDPpsabdp.com

Global provider of integrated supply chain, transportation, and logistics solutions including 4PL, freight forwarding, customs clearance, warehousing, and supply chain visibility.

Transportation, Logistics, Supply Chain and Storage 馃嚭馃嚫 Philadelphia 5,445 1966

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51
Vishay Intertechnology, Inc.vishay.com

Manufactures extensive range of discrete semiconductors and passive electronic components for automotive, industrial, computing, consumer, telecom, military, aerospace, and medical markets worldwide.

Appliances, Electrical, and Electronics Manufacturing 馃嚭馃嚫 Malvern 5,426 n/a
52
UGI Corporationugicorp.com

An international energy distribution and services company focusing on delivering energy products, providing great service, serving communities, and delivering value to investors

Utilities 馃嚭馃嚫 King of Prussia 5,226 1882
53
Morgan, Lewis & Bockius LLPmorganlewis.com

Legal professionals providing corporate, transactional, litigation, and regulatory services to diverse industries worldwide, supporting clients' immediate and long-term goals.

Law Practice 馃嚭馃嚫 Philadelphia 5,068 1873
54
PCI Pharma Servicespci.com

Provides world-class solutions for drug development, manufacturing, advanced drug delivery, clinical trials, and commercial packaging, delivering life-changing therapies globally.

Pharmaceutical Manufacturing 馃嚭馃嚫 Philadelphia 4,795 n/a
55
Olympus Corporation of the Americasolympusamerica.com

A global medical technology company partnering with healthcare professionals to provide solutions for early detection, diagnosis, and minimally invasive treatment

Medical Equipment Manufacturing 馃嚭馃嚫 Center Valley 4,752 n/a
56
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
57
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
58
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
59
Qlikqlik.com

Delivers trusted data products, powerful analytics engines, and AI agents helping teams scale responsibly while reducing risk and maintaining flexible system integration.

Software Development 馃嚭馃嚫 King of Prussia 4,561 1993
60
SUEZ - Water Technologies & Solutionswatertechnologies.com

Providing innovative solutions for industries, including water treatment and process optimization, to help businesses thrive and overcome challenges

Environmental Services 馃嚭馃嚫 Trevose 4,538 n/a
61
EPAM Anywhereepam.com

Global job platform providing remote opportunities for tech professionals to work on projects for global brands and startups, offering competitive compensation and world-class learning resources

IT Services and IT Consulting 馃嚭馃嚫 Newtown 4,367 n/a
62
MSA - The Safety Companymsasafety.com

Designs and manufactures advanced safety products and technologies protecting workers and infrastructure worldwide across diverse industries.

Public Safety 馃嚭馃嚫 Cranberry Township 4,260 1914
63
Korn Ferry Hay Groupkornferry.com

Global organizational consulting firm helping companies design their structure, roles, compensation, and hire talent to execute strategy in over 50 countries

Management Consulting 馃嚭馃嚫 Philadelphia 4,258 1943
64
SEIseic.com

A technology and investment solutions provider for financial services industry, specializing in investment processing, operations, asset management, and wealth management

Financial Services 馃嚭馃嚫 Oaks 4,248 1968
65
TRIUMPHtriumphgroup.com

Design, engineering, manufacturing, repair, and overhaul of aviation and industrial components, partnering with OEMs and operators globally.

Aviation and Aerospace Component Manufacturing 馃嚭馃嚫 Radnor 3,933 1993
66
IPS-Integrated Project Servicesipsdb.com

Technical consulting, architecture, engineering, procurement, and construction management for complex facilities through commissioning, validation, and compliance services to accelerate operational readiness and market speed.

Business Consulting and Services 馃嚭馃嚫 Blue Bell 3,932 1989
67
Susquehanna International Groupsig.com

global proprietary trading firm providing liquidity, competitive pricing, quantitative strategies, private equity, structured capital, and institutional brokerage services

Financial Services 馃嚭馃嚫 Bala Cynwyd 3,913 1987
68
Advanced Call Center Technologies, LLCacttoday.com

Provider of outsourced call center services to various industries including financial services, telecommunications, healthcare, and retail, offering fraud prevention, customer service, sales, and back office support

Outsourcing and Offshoring Consulting 馃嚭馃嚫 Berwyn 3,886 1997
69
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
70
Gopuffgopuff.com

Instant commerce platform offering groceries, alcohol, home essentials, and more Orders delivered in minutes, catering to diverse everyday needs globally Founded in 2013

Software Development 馃嚭馃嚫 Philadelphia 3,714 2013
71
Dunkindunkindonuts.com

Provides food and beverage products including coffee, donuts, and quick-service meals through a network of retail locations.

Food and Beverage Services 馃嚭馃嚫 Philadelphia 3,575 n/a
72
Graham Packaginggrahampackaging.com

A leader in sustainable packaging design, manufacturing, and sales for food, beverage, household, and automotive industries with global reach

Packaging and Containers Manufacturing 馃嚭馃嚫 Lancaster 3,562 1970
73
Harsco Corporationenviri.com

Global provider of environmental waste management, recycling, onsite material processing, and rail infrastructure services across multiple industries and countries.

Environmental Services 馃嚭馃嚫 Philadelphia 3,553 1853
74
Quaker Houghtonhome.quakerhoughton.com

Global leader in industrial process fluids, serving advanced manufacturing industries with expertise in chemistry and engineering for efficient operations and future growth

Chemical Manufacturing 馃嚭馃嚫 Conshohocken 3,523 n/a
75
CertainTeedcertainteed.com

A leading provider of sustainable exterior and interior building products in North America, with a focus on innovation and environmental responsibility

Wholesale Building Materials 馃嚭馃嚫 Malvern 3,511 1904
76
Crane Payment Innovationscranepi.com

Provides world-class, automated payment solutions and experiences, developing products in currency validation, cash management, digital payment, mobile apps, and security for global consumers.

Appliances, Electrical, and Electronics Manufacturing 馃嚭馃嚫 Malvern 3,504 n/a
77
Arbonnearbonne.com

A global skincare company founded in Switzerland in 1975, offering botanical-based products that are high quality, safe, eco-friendly, and effective

Wellness and Fitness Services 馃嚭馃嚫 3,453 n/a
78
Globus Medicalglobusmedical.com

Development and manufacturing of innovative orthopedic surgical products focused on improving patient outcomes and enabling pain-free, active lives.

Medical Equipment Manufacturing 馃嚭馃嚫 Audubon 3,451 2003
79
Eurofins Lancaster Laboratorieseurofinsus.com

A global contract laboratory providing comprehensive services in pharmaceutical, biopharmaceutical, and environmental sciences to a diverse range of clients worldwide

Biotechnology Research 馃嚭馃嚫 Lancaster 3,426 1961
80
Victaulicvictaulic.com

A global leader in pipe joining and flow control solutions for construction projects, offering innovative products and technologies for increased system durability

Industrial Machinery Manufacturing 馃嚭馃嚫 Easton 3,373 1919
81
SunGard - now part of FISfisglobal.com

Financial technology company offering updates and news through LinkedIn and FISGlobalcom after acquiring SunGard

IT Services and IT Consulting 馃嚭馃嚫 Wayne 3,348 1968
82
Lutron Electronicslutron.com

Design and manufacture innovative lighting, shading, and control systems to enhance everyday experiences through transformative light technology.

Appliances, Electrical, and Electronics Manufacturing 馃嚭馃嚫 Coopersburg 3,347 1961
83
Boeing Defense, Space & Securityboeing.com

A division of a leading company focusing on defense and aerospace products and services, based in Arlington, Virginia Formerly known as Boeing Integrated Defense Systems

Business Consulting and Services 馃嚭馃嚫 Wayne 3,334 2002
84
Carpenter Technology Corporationcarpentertechnology.com

Producer and distributor of premium specialty alloys and advanced materials for aerospace, transportation, medical, energy, and additive manufacturing applications.

Manufacturing 馃嚭馃嚫 Philadelphia 3,271 1889
85
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
86
JLG Industriesjlg.com

Manufacturing mobile elevating work platforms, telehandlers, utility vehicles, and accessories for construction and industrial safety worldwide.

Machinery Manufacturing 馃嚭馃嚫 McConnellsburg 3,052 1969
87
Boomiboomi.com

The company offers a platform for intelligent connectivity and automation, enabling seamless connections between people and devices regardless of location

Software Development 馃嚭馃嚫 Conshohocken 3,030 2000
88
Accion Labsaccionlabs.com

IT services company focusing on business transformation through innovation with a global presence, specialized in building new products and re-engineering legacy products using cutting-edge technologies

IT Services and IT Consulting 馃嚭馃嚫 Bridgeville 2,788 2011
89
CAIcai.io

Global services firm combining talent and technology to deliver customized solutions across public and commercial sectors, emphasizing neurodiversity inclusion.

Professional Services 馃嚭馃嚫 Allentown 2,773 1981
90
QVC Groupqurateretailgroup.com

This company specializes in video-driven shopping experiences across various platforms, combining entertainment with commerce to engage discerning shoppers worldwide

Retail 馃嚭馃嚫 West Chester 2,717 n/a
91
HHM Hotelshhmhotels.com

A leading hotel operator managing a portfolio of 240 hotels in the United States and Canada, known for delivering consistent results and focusing on people, processes, and technology

Hospitality 馃嚭馃嚫 Philadelphia 2,716 n/a
92
The Judge Groupjudge.com

Provides international business technology consulting, talent solutions, and corporate learning services across various industries including healthcare and finance through thirty global office locations.

Business Consulting and Services 馃嚭馃嚫 Wayne 2,642 1970
93
Shift4shift4.com

Leading provider of commerce technology, enabling billions of transactions annually across diverse industries with simplified payment ecosystems worldwide.

Financial Services 馃嚭馃嚫 Center Valley 2,542 n/a
94
Vertex Inc.vertexinc.com

Provides comprehensive tax solutions and software, helping global businesses manage indirect tax obligations, compliance, and growth across various business systems and jurisdictions.

Software Development 馃嚭馃嚫 King of Prussia 2,515 n/a
95
Cencora | Pharma solutionscencora.com

A global pharmaceutical solutions organization partnering with pharma innovators to optimize product potential and improve access to healthcare products

Pharmaceutical Manufacturing 馃嚭馃嚫 Conshohocken 2,500 n/a
96
SSi Peoplessipeople.com

An experienced staffing organization based in PA, connecting Fortune 1000 companies with skilled professionals across various industries in the US

Staffing and Recruiting 馃嚭馃嚫 Cranberry Township 2,443 1998
97
Inizio Engageinizioengage.com

A global healthcare engagement partner offering strategic, commercial, and creative solutions through consultation, technology, and activation expertise to inspire lasting change

Hospitals and Health Care 馃嚭馃嚫 Yardley 2,352 n/a
98
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
99
Dorman Productsdormanproducts.com

Manufacture and supply aftermarket automotive, heavy-duty, and specialty vehicle replacement parts designed to save time, money, and increase reliability.

Motor Vehicle Parts Manufacturing 馃嚭馃嚫 Colmar 2,210 1918
100
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

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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 11, 2026.

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