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The 100 largest companies in Pennsylvania

Tamtam tracks 3,110 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 11,156. Half of them were founded in 1950 or later. The most common headquarters are Philadelphia (23), Pittsburgh (19) and Reading (4).

๐Ÿ‡บ๐Ÿ‡ธ Pennsylvania100 companiesUpdated Oct 24, 2026
#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 ๐Ÿ‡บ๐Ÿ‡ธ 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 ๐Ÿ‡บ๐Ÿ‡ธ 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 ๐Ÿ‡บ๐Ÿ‡ธ 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 ๐Ÿ‡บ๐Ÿ‡ธ 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 ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 41,860 n/a
6
DICK'S Sporting Goodsdickssportinggoods.jobs

Providing athletic equipment, apparel, and footwear through physical retail stores and ecommerce platforms while supporting youth sports via mobile applications and community funding.

Retail ๐Ÿ‡บ๐Ÿ‡ธ Coraopolis 35,361 1948
7
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 ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 33,277 1883
8
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 ๐Ÿ‡บ๐Ÿ‡ธ University Park 31,986 1855
9
RITE AIDriteaid.com

A full-service pharmacy offering retail and delivery pharmacy services, health coaching, and disease management solutions through its subsidiaries Operates nationwide

Retail ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 28,846 1968
10
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 ๐Ÿ‡บ๐Ÿ‡ธ Valley Forge 28,472 1975
11
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 ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 27,613 1970
12
Wabtec Corporationwabteccorp.com

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

Railroad Equipment Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 27,000 1869
13
Select Medicalcareers.selectmedical.com

Specialized hospital and rehabilitative care provider operating recovery hospitals, outpatient centers, and occupational health facilities across the United States.

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Mechanicsburg 25,292 n/a
14
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 ๐Ÿ‡บ๐Ÿ‡ธ Reading 23,946 1969
15
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 ๐Ÿ‡บ๐Ÿ‡ธ Blue Bell 23,358 n/a
16
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 ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 22,832 1977
17
University of Pennsylvaniaupenn.edu

Renowned Ivy League university with 12 schools offering a wide range of programs including arts, sciences, engineering, business, and medicine

Higher Education ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 22,558 1740
18
Penn Medicine, University of Pennsylvania Health Systempennmedicine.org

Leading academic medical center combining cutting-edge research, comprehensive patient care, and education to improve health and transform lives regionally.

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 21,979 n/a
19
Wawa, Inc.wawa.com

A fast-growing chain of convenience retail stores offering fresh foods, beverages, fuel services, and community-focused initiatives while investing in employee development and well-being

Retail ๐Ÿ‡บ๐Ÿ‡ธ Wawa 21,010 1964
20
Air Productsairproducts.com

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

Chemical Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Allentown 20,000 1940
21
University of Pittsburghpitt.edu

Top-ranked public institution in Pennsylvania, member of leading research universities Known for innovative discoveries and shaping future paths

Higher Education ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 19,349 1787
22
Jefferson Healthjeffersonhealth.org

This company is dedicated to providing excellent clinical care, educating future health professionals, and advancing research in health sciences

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 18,520 n/a
23
Ricoh USA, Inc.ricoh-usa.com

Provide information management and digital services combining people, processes, and technology to enhance business agility and unlock insights.

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ Exton 18,369 1962
24
Children's Hospital of Philadelphiachop.edu

Specialized pediatric hospital providing exceptional patient care, pioneering medical research, and training future pediatric healthcare professionals.

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 18,042 1855
25
Viatrisviatris.com

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

Pharmaceutical Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 17,886 n/a
26
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 ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 17,780 1888
27
Geisingergeisinger.org

Healthcare organization with 13 hospital campuses, research centers, medical college, and health plan serving millions in Pennsylvania Committed to quality healthcare

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Danville 15,962 1915
28
The School District of Philadelphiaphilasd.org

Providing high-quality education to diverse students, ensuring academic success, lifelong learning, and preparation for productive societal roles.

Education Administration Programs ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 15,950 n/a
29
Highmark Healthhighmarkhealth.org

Provides health insurance, care delivery, population health management, dental solutions, reinsurance, and innovative technology to millions of customers across the nation.

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 15,876 n/a
30
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 ๐Ÿ‡บ๐Ÿ‡ธ Norristown 15,549 n/a
31
Mylanviatris.com

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

Pharmaceutical Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Canonsburg 15,198 n/a
32
Five Belowfivebelow.com

A unique company offers fun and affordable experiences with a strong emphasis on culture, values, and employee satisfaction

Retail ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 14,644 2002
33
Genesisgenesishcc.com

Provider of high-quality healthcare services, including skilled nursing, senior living, rehabilitation therapy, and staffing, emphasizing diversity, equity, and inclusion in all aspects

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Kennett Square 14,566 1985
34
Giant Eagle, Inc.jobs.gianteagle.com

Operate family-owned grocery stores and convenience outlets, emphasizing community support, employee well-being, and ethical business practices.

Retail Groceries ๐Ÿ‡บ๐Ÿ‡ธ Cranberry Township 14,515 1931
35
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 ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 13,124 1884
36
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 ๐Ÿ‡บ๐Ÿ‡ธ Radnor Township 13,000 1904
37
Air National Guardairforce.com

Provides part-time military service with high-tech career training, college tuition assistance, and federal benefits while serving in local units near home.

Armed Forces ๐Ÿ‡บ๐Ÿ‡ธ Horsham 12,937 n/a
38
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 ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 12,502 n/a
39
Westinghouse Electric Companywestinghousenuclear.com

Global leader in providing safe and innovative nuclear technology, offering reliable power plants, fuel, automation, and services with a focus on safety and sustainability

Utilities ๐Ÿ‡บ๐Ÿ‡ธ Cranberry Township 12,455 n/a
40
Lehigh Valley Health Networklvhn.org

Comprehensive healthcare network delivering high-quality, award-winning medical services focused on patient safety, nursing excellence, and community well-being.

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Allentown 12,163 n/a
41
City of Philadelphiaphila.gov

Employs 30,000 people across 1,000 job categories, focusing on service, integrity, diversity, and improving residents' opportunities.

Government Administration ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 11,993 n/a
42
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 ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 11,986 1883
43
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 ๐Ÿ‡บ๐Ÿ‡ธ Reading 11,808 1969
44
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 ๐Ÿ‡บ๐Ÿ‡ธ Reading 11,726 1969
45
Allegheny Health Networkahn.org

Integrated healthcare delivery system with hospitals, medical centers, wellness pavilions, and numerous physician practices serving Western Pennsylvania.

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 11,676 n/a
46
Bimbo Bakeries USAbimbobakeriesusa.com

A leading baking company in the US, part of a global group, known for popular bread, cake, and snack brands

Food and Beverage Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Horsham 11,648 n/a
47
Visiting Angelsvisitingangels.com

Provider of non-medical in-home care services for seniors and individuals with special needs, helping them maintain independence and quality of life

Home Health Care Services ๐Ÿ‡บ๐Ÿ‡ธ Bryn Mawr 11,542 n/a
48
WellSpan Healthwellspan.org

Integrated delivery system in South Central Pennsylvania and northern Maryland, providing comprehensive healthcare solutions through a network of providers, hospitals, home care, and behavioral health services

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ York 11,400 1880
49
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 ๐Ÿ‡บ๐Ÿ‡ธ King of Prussia 11,329 1979
50
St. Luke's University Health Networkslhn.org

Integrated non-profit healthcare network in PA and NJ with 14 campuses, 300+ outpatient sites, medical school, nursing school, and top quality rankings

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Bethlehem 11,156 1872
51
The Hershey Companythehersheycompany.com

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

Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Hershey 11,057 1894
52
Carnegie Mellon Universitycmu.edu

University providing education that develops problem solvers, innovators, and pioneers in technology and the arts, ready for careers.

Higher Education ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 11,021 1900
53
Sheetzjobs.sheetz.com

A family-owned convenience store chain with over 700 locations in six states, dedicated to providing a high-energy culture, community impact, and employee benefits

Retail ๐Ÿ‡บ๐Ÿ‡ธ Altoona 10,973 1952
54
Lincoln Financiallincolnfinancial.com

Provides annuities, investments, life insurance, group protection, and retirement plan services to help customers achieve long-term financial security and reach personal goals.

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ Radnor 10,801 1905
55
Airgasairgas.com

A leading supplier of industrial, medical, and specialty gases, safety products, ammonia, and process chemicals, committed to improving customer performance

Chemical Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Radnor 10,444 1982
56
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 ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 10,422 n/a
57
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 ๐Ÿ‡บ๐Ÿ‡ธ Wayne 9,909 1943
58
The Goddard Schoolgoddardschool.com

An educational organization that promotes fun learning through academically endorsed methods to prepare children for long-term success in school and life

Education Administration Programs ๐Ÿ‡บ๐Ÿ‡ธ King of Prussia 9,847 1988
59
Commonwealth of Pennsylvaniaemployment.pa.gov

Provides diverse employment opportunities across various professions to efficiently deliver government programs and services to Pennsylvania residents.

Government Administration ๐Ÿ‡บ๐Ÿ‡ธ Statewide 9,601 1787
60
Comcast Businessbusiness.comcast.com

A technology solutions provider offering connectivity, networking, cybersecurity, and communications solutions to businesses of all sizes, with a focus on driving innovation and growth

Telecommunications ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 9,292 n/a
61
QVCcareers.qvcgrp.com

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

Retail ๐Ÿ‡บ๐Ÿ‡ธ West Chester 9,215 1986
62
Main Line Healthmainlinehealth.org

A not-for-profit health system with hospitals, rehab facilities, outpatient centers, and physician networks, offering advancement opportunities and a supportive work environment

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Radnor Township 9,033 1985
63
Howard Hanna Real Estate Serviceshowardhanna.com

Provider of real estate, title, insurance, and mortgage services in 13 states with over 480 offices and 15,000 sales associates

Real Estate ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 8,768 1957
64
The Wharton Schoolupenn.edu

Educates global leaders through undergraduate, MBA, executive, and doctoral programs, advancing business knowledge and societal progress with a vast alumni network.

Higher Education ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 8,554 1881
65
PENN Entertainment, Incpennentertainment.com

A leading omni-channel provider of gaming and entertainment experiences with a large and diverse footprint in North America

Gambling Facilities and Casinos ๐Ÿ‡บ๐Ÿ‡ธ Wyomissing 8,112 n/a
66
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 ๐Ÿ‡บ๐Ÿ‡ธ Philadelpia 8,092 1970
67
Penn State Healthpennstatehealth.org

Multi-hospital health system in central Pennsylvania with medical centers, outpatient practices, and a partnership with Highmark Health for community care

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Hershey 8,037 1963
68
Weis Marketsjobs.weismarkets.com

A regional grocery chain with 200+ stores in 7 states, supported by a large warehouse, and a diverse workforce of 23,000+ employees

Retail ๐Ÿ‡บ๐Ÿ‡ธ Sunbury 7,894 1912
69
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 ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 7,889 1984
70
F.N.B. Corporationfnb-online.com

Diversified financial services company offering commercial banking, consumer banking, wealth management, and insurance solutions across multiple U.S. states.

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 7,832 1864
71
Axaltaaxalta.com

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

Chemical Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 7,744 2013
72
Highmarkhighmark.com

A leading health insurance organization delivering high-quality, accessible, and affordable solutions to 68 million members in multiple states

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 7,672 n/a
73
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 ๐Ÿ‡บ๐Ÿ‡ธ Bethlehem 7,619 1839
74
CTDIlinktr.ee

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

Telecommunications ๐Ÿ‡บ๐Ÿ‡ธ West Chester 7,614 1975
75
Drexel Universitydrexel.edu

Academically comprehensive urban research university with a globally engaged community and a premier cooperative education program nationwide.

Higher Education ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 7,580 1891
76
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 ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 7,402 2020
77
Coherent Corp.coherent.com

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

Semiconductor Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Saxonburg 7,389 1971
78
Clarioclario.com

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

Biotechnology Research ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 7,151 1972
79
PPL Corporationpplweb.com

Providing electricity to millions, building smarter, resilient power grids, advancing sustainable energy solutions, and fostering inclusive work environments.

Utilities ๐Ÿ‡บ๐Ÿ‡ธ Allentown 7,118 1920
80
Hand & Stone Massage and Facial Spahandandstone.com

A leading Massage and Facial Spa franchise offering affordable services, proven revenue model, comprehensive support, training, and marketing programs nationwide

Wellness and Fitness Services ๐Ÿ‡บ๐Ÿ‡ธ Trevose 6,900 2004
81
United States Steel Corporationussteel.com

Developing and delivering profitable, next-generation steel solutions focused on safety and meeting current and future customer needs.

Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 6,794 1901
82
Erie Insurance Grouperieinsurance.com

Multi-line insurance company offering auto, home, business, and life insurance through independent agents across 12 states and D.C.

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Erie 6,685 1925
83
Crothall Healthcarecareers.crothall.com

A leading healthcare support services provider specializing in environmental services, clinical engineering, patient transportation, facilities management, sterile processing, and patient sitter/observation

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Wayne 6,661 n/a
84
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 ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 6,659 n/a
85
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 ๐Ÿ‡บ๐Ÿ‡ธ Conshohocken 6,629 n/a
86
AmeriHealth Caritasamerihealthcaritas.com

providing integrated managed care, pharmaceutical and behavioral health services, supporting communities, improving health outcomes, and addressing poverty challenges

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 6,442 1983
87
Ansysansys.com

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

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Canonsburg 6,283 1970
88
West Pharmaceutical Serviceswestpharma.com

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

Pharmaceutical Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Exton 6,268 1923
89
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 ๐Ÿ‡บ๐Ÿ‡ธ Reading 6,257 n/a
90
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 ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 6,242 1992
91
Project Management Institutepmi.org

Leading professional organization offering project management certifications, resources, knowledge, and networking for project professionals worldwide since 1969.

Professional Training and Coaching ๐Ÿ‡บ๐Ÿ‡ธ Newtown Square 6,165 1969
92
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 ๐Ÿ‡บ๐Ÿ‡ธ Malvern 5,971 1665
93
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 ๐Ÿ‡บ๐Ÿ‡ธ Berwyn 5,963 1930
94
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 ๐Ÿ‡บ๐Ÿ‡ธ Yardley 5,891 1892
95
Ollie's Bargain Outlet, Inc.ollies.com

A leading retailer of closeouts and excess inventory, offering famous brand-name goods in 400+ store locations across 28 states

Retail ๐Ÿ‡บ๐Ÿ‡ธ Harrisburg 5,881 1982
96
Ascensusascensus.com

Ascensus is a leading provider of outsourced services in the savings plan industry, helping millions save for a better future through technology and expertise

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ Dresher 5,777 1980
97
Temple Health โ€“ Temple University Health Systemtemplehealth.org

Temple Health provides advanced research and clinical care, offering innovative treatments through renowned physicians, nurses, and researchers in various medical facilities and practices

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 5,770 1892
98
Healthcare Services Group, Inchcsg.com

A leader in healthcare facility services, specializing in housekeeping, laundry, dining, and nutritional services to improve operational and financial outcomes

Hospitality ๐Ÿ‡บ๐Ÿ‡ธ Bensalem 5,733 1976
99
David's Bridaldavidsbridal.com

A company offering bridal, prom, quinceaรฑera attire with stunning designs, fabrics, alterations, planning tools, and inspiration for life's special occasions

Retail ๐Ÿ‡บ๐Ÿ‡ธ Conshohocken 5,728 1950
100
Thomas Jefferson Universityjefferson.edu

University focused on innovative health education, interdisciplinary learning, expert faculty collaboration, and redefining possibilities in health, education, and discovery.

Higher Education ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 5,700 1824

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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 Oct 24, 2026.

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