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Critical infrastructure operators headquartered in Pennsylvania

Tamtam tracks 151 critical infrastructure operators headquartered in Pennsylvania. This list ranks the 100 largest by number of employees on LinkedIn, led by Comcast, PNC and UPMC. Their median headcount is 1,684. Half of them were founded in 1912 or later. The most common headquarters are Philadelphia (19), Pittsburgh (13) and Harrisburg (6).

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
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
3
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
4
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
5
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
6
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
7
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
8
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
9
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
10
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
11
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
12
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
13
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
14
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
15
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
16
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
17
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
18
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
19
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
20
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
21
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
22
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
23
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
24
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
25
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
26
Newreznewrez.com

Providing personalized mortgage loans, refinancing options, and home equity solutions with dedicated support, especially for military families.

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ Fort Washington 5,327 2018
27
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 ๐Ÿ‡บ๐Ÿ‡ธ King of Prussia 5,226 1882
28
Penn Medicine Lancaster General Healthpennmedicine.org

Comprehensive healthcare system offering hospital services, outpatient care, physician network, behavioral health, rehabilitation, and health sciences education across multiple facilities.

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Lancaster 4,900 1893
29
UPMC Health Planupmchealthplan.com

A leading health insurer offering quality health insurance plans for individuals, families, and businesses, with a focus on providing top-ranked care and innovative wellness programs

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 4,550 1996
30
Southeastern Pennsylvania Transportation Authority (SEPTA)septa.org

A major public transit system in Southeastern Pennsylvania offering bus, subway, trolley, Regional Rail, paratransit, and shared ride services across multiple counties

Ground Passenger Transportation ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 3,982 1964
31
Xfinityxfinity.com

Revolutionizing connectivity with the Xfinity 10G Network, leading the way into the future of high-speed internet services

Telecommunications ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 3,979 n/a
32
Select Specialty Hospitalselectspecialtyhospitals.com

Specializing in critical and complex medical conditions, our hospitals provide tailored programs and services to improve patient wellness and outcomes

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Mechanicsburg 3,892 n/a
33
Einstein Healthcare Networkjeffersonhealth.org

Healthcare network serving Philadelphia and Montgomery County, offering comprehensive medical services and patient care across multiple facilities.

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 3,812 n/a
34
Pennsylvania Department of Transportation (PennDOT)pa.gov

This company oversees highway programs, transportation policies, bridges, vehicle registrations, driver's licenses, safety programs, and emission inspections in Pennsylvania

Truck Transportation ๐Ÿ‡บ๐Ÿ‡ธ Harrisburg 3,764 1970
35
UPMC Children's Hospital of Pittsburghchp.edu

A leader in treating childhood conditions, developing therapies, educating pediatricians, and advancing research with strong community support since 1890

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 3,489 1890
36
PAM Healthpamhealth.com

The company is dedicated to providing high-quality patient care and customer service in post-acute services, supporting recovery through education and research

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Enola 3,455 n/a
37
Aquaaquawater.com

Providing water and wastewater services to over 3 million people across multiple U.S. states with a focus on safety and integrity.

Utilities ๐Ÿ‡บ๐Ÿ‡ธ Bryn Mawr 3,174 n/a
38
Fulton Bankfultonbank.com

A community-oriented bank focused on personalized service, financial solutions, and fostering lasting relationships while promoting equality and career growth

Banking ๐Ÿ‡บ๐Ÿ‡ธ Lancaster 2,886 1882
39
Tower Healthtowerhealth.org

Regional integrated healthcare system offering leading-edge, compassionate healthcare and wellness services across multiple counties, with various hospitals, urgent care facilities, and medical services

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ West Reading 2,823 n/a
40
Bryn Mawr Trustbmt.com

Provider of wealth management solutions, planning, investment management, trust, estate planning, brokerage, and investment services for individual, corporate, and institutional clients

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ Bryn Mawr 2,507 1889
41
PECOpeco.com

A historic company in the energy sector, dedicated to providing safe, reliable, affordable, and clean energy services while promoting environmental awareness and innovation

Utilities ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 2,481 1881
42
Independence Health Systemindependence.health

Provides quality cardiology, orthopedics, maternity, surgical, emergency, behavioral health services with a large network of primary care physicians.

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Greensburg 2,261 2004
43
Trinity Health Mid-Atlantictrinityhealthma.org

A regional health system in the Greater Philadelphia Area with multiple hospitals, part of Trinity Health of Livonia, Michigan

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Newtown Square 2,158 n/a
44
Fox Chase Cancer Centerfoxchase.org

Dedicated cancer hospital with expert multidisciplinary teams advancing prevention, diagnosis, treatment, and survivorship through pioneering research and clinical care.

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 2,146 1904
45
Northwest Banknorthwest.bank

A financial institution focused on improving lives through award-winning customer service in Pennsylvania, New York, Indiana, and Ohio

Banking ๐Ÿ‡บ๐Ÿ‡ธ Warren 2,003 1896
46
EQT Corporationeqt.com

A leading independent natural gas producer focused on responsible development in the Appalachian Basin, striving to create long-term value for stakeholders

Oil and Gas ๐Ÿ‡บ๐Ÿ‡ธ Canonsburg 1,809 1888
47
Heritage Valley Health Systemheritagevalley.org

An integrated delivery network offering comprehensive healthcare services in Pennsylvania, Ohio, and West Virginia through hospitals, physician offices, and community facilities

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Beaver 1,705 n/a
48
Penn Medicine Chester County Hospitalchestercountyhospital.org

Delivering compassionate and innovative healthcare as part of a leading health system for over 125 years, offering new treatment options

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ West Chester 1,701 1892
49
Penn Highlands Healthcarephhealthcare.org

Penn Highlands Healthcare in Pennsylvania provides a full range of healthcare services through multiple hospitals, home care agencies, senior living facilities, and affiliates

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Dubois 1,694 2011
50
Crozer-Keystone Health Systemcrozerhealth.org

A leading health care provider offering a full spectrum of wellness, acute care, and rehabilitation services in Delaware County, PA

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Springfield 1,684 1990
51
Penn Medicine Doylestown Healthdoylestownhealth.org

Healthcare organization offering a wide range of services including hospital care, surgery center, home health care, hospice, physicians, retirement community, and childcare services

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Doylestown 1,635 1923
52
Redeemer Healthredeemerhealth.org

A Catholic healthcare provider in PA and NJ offering a wide range of services, including acute care, home health, hospice, and housing programs

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Meadowbrook 1,588 1924
53
Inframarkinframark.com

Specializing in water infrastructure management, operations, and support services, we tailor solutions for clients to achieve performance, safety, compliance, and reliability

Utilities ๐Ÿ‡บ๐Ÿ‡ธ Horsham 1,527 n/a
54
Conemaugh Health System, Duke LifePoint Healthcareconemaugh.org

A leading healthcare provider in west central Pennsylvania, offering a wide range of medical services with a focus on excellence and exceptional clinical outcomes

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Johnstown 1,515 1889
55
UPMC Susquehannasusquehannahealth.org

This healthcare network in northcentral Pennsylvania provides clinically excellent services through six hospitals and various medical offices, serving a 16-county region

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Williamsport 1,491 1994
56
Vibra Healthcarevibrahealthcare.com

Providing patient-centered care with a supportive culture, career growth, flexible hours, and a commitment to clinical excellence.

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Mechanicsburg 1,480 2004
57
UPMC Pinnacleupmcpinnacle.com

Health system with seven hospitals, outpatient clinics, and over 2,900 healthcare professionals serving multiple counties in Pennsylvania

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Harrisburg 1,449 n/a
58
Dollar Bankdollar.bank

An inclusive community bank investing in customers, empowering employees, and strengthening communities while prioritizing customer privacy and data protection

Banking ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 1,442 1855
59
Duquesne Light Companyduquesnelight.com

Providing safe, reliable electric service to over 600,000 customers in southwestern Pennsylvania with a focus on clean energy transition.

Utilities ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 1,428 1880
60
Aria - Jefferson Healthjeffersonhealth.org

A leading healthcare provider in Northeast Philadelphia and Lower Bucks County, offering community hospitals, outpatient centers, and primary care physicians to improve lives

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 1,421 n/a
61
CNXcnx.com

Premier natural gas developer in Appalachia, prioritizing local resources to make a tangible impact on regional communities and beyond Producing low cost, low emission natural gas

Oil and Gas ๐Ÿ‡บ๐Ÿ‡ธ Canonsburg 1,413 1864
62
First Commonwealth Bankfcbanking.com

A community-focused financial institution dedicated to improving the financial well-being of individuals and businesses through authentic banking experiences and thoughtful leadership

Banking ๐Ÿ‡บ๐Ÿ‡ธ Indiana 1,409 1982
63
St. Clair Healthstclair.org

An independent acute-care medical center in southwestern Pennsylvania, offering a wide range of high-quality health care services to the community

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 1,408 1954
64
St. Christopher's Hospital for Childrentowerhealth.org

A renowned pediatric care provider in Philadelphia offering exceptional services and nationally recognized programs for children worldwide since 1875

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 1,364 1875
65
Mount Nittany Healthmountnittany.org

A healthcare system in Central Pennsylvania with a 120-year legacy, providing best-in-class care and compassion for the community

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ State College 1,339 1902
66
Metro Bankfnb-online.com

regional financial services provider with multiple banking offices across Pennsylvania, offering full-service banking to local communities and businesses.

Banking ๐Ÿ‡บ๐Ÿ‡ธ Harrisburg 1,316 n/a
67
Sacred Heart Hospital affiliated with Sacred Heart HealthCare Systemslhn.org

A Catholic medical center offering a wide range of advanced medical services, including obstetrics, surgery, cardiology, rehabilitation, and behavioral health services

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Allentown 1,284 1912
68
KidsPeacekidspeace.org

Dedicated private charity serving behavioral and mental health needs of children, families, and communities through psychiatric hospital, residential treatment, educational, foster care, and community-based programs

Mental Health Care ๐Ÿ‡บ๐Ÿ‡ธ Schnecksville 1,273 1882
69
Pyramid Healthcare, Inc.pyramid-healthcare.com

Provider of behavioral health services since 1999, with over 80 facilities offering mental health, substance use, and recovery services for adults and teens

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Duncansville 1,267 1999
70
UGI Utilities, Inc.ugi.com

Natural gas and electric utility providing safe, reliable, and affordable energy services to customers across Pennsylvania and Maryland counties.

Utilities ๐Ÿ‡บ๐Ÿ‡ธ Denver 1,232 1882
71
Penn Mutualpennmutual.com

With over 175 years of experience, this company partners with Financial Professionals to provide life insurance, annuities, wealth management, and institutional asset management solutions

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 1,183 1847
72
Regency Hospital Companyregencyhospital.com

Regency Hospitals, part of Select Medical, specializes in providing comprehensive care to acutely ill patients with catastrophic illnesses or injuries

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Mechanicsburg 1,154 n/a
73
Customers Bankcustomersbank.com

A community-based, full-service bank offering loans to businesses and consumers nationwide, with a focus on human connections, innovation, and technology

Banking ๐Ÿ‡บ๐Ÿ‡ธ Reading 1,149 2009
74
PJM Interconnectionpjm.com

Manage high-voltage electric system serving 67 million people across 13 states and DC, administer wholesale electricity market, ensure grid reliability.

Utilities ๐Ÿ‡บ๐Ÿ‡ธ Audubon 1,148 1927
75
Members 1st Federal Credit Unionmembers1st.org

A company offering financial tools and services since 1950, helping members plan for the future and afford the things they love

Banking ๐Ÿ‡บ๐Ÿ‡ธ Enola 1,095 1950
76
Philadelphia Gas Workspgworks.com

provides natural gas energy services and solutions to over 500,000 residential and commercial customers in Philadelphia city

Utilities ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 1,047 1836
77
UPMC Hillman Cancer Centerhillmanresearch.upmc.edu

An NCI-designated cancer center affiliated with a university, providing high-level clinical care, research, and education to cancer patients and professionals

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 1,028 n/a
78
Allied Servicesallied-services.org

Leading provider of healthcare and human services in northeastern Pennsylvania, offering a wide range of programs for individuals with disabilities and chronic illnesses since 1958

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Clarks Summit 1,018 1958
79
Good Shepherd Rehabilitationgoodshepherdrehab.org

A not-for-profit rehabilitation network offering inpatient, outpatient, and community-based services for patients of all ages and abilities in eastern PA and NJ

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Allentown 1,004 1908
80
Univestunivest.net

A growing financial corporation offering banking, insurance, investments, trust, wealth management, leasing, and mortgage banking services to local communities

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ Souderton 1,004 1876
81
S&T Bankstbank.com

A financial services company founded in 1902, offering a range of services to families and businesses in Pennsylvania and Ohio

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ Indiana 947 1902
82
PSECUpsecu.com

A member-owned credit union founded in 1934, providing financial services to over 500,000 members with $7 billion in assets Non-profit organization

Banking ๐Ÿ‡บ๐Ÿ‡ธ Harrisburg 938 1934
83
St. Mary Medical Center, Langhorne, PAtrinityhealthma.org

A comprehensive medical center offering advanced care and state-of-the-art technology, with a focus on patient safety, quality care, and community outreach initiatives

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Langhorne 919 1973
84
Meadville Medical Centermmchs.org

A community hospital in Pennsylvania offering state-of-the-art facilities, leading healthcare services, and innovative technology to meet the community's needs

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Meadville 903 n/a
85
PinnacleHealth Systemupmcpinnacle.com

A healthcare provider offering high-quality, patient-centered services in central Pennsylvania with over 2,900 physicians, 11,000 employees, and eight acute care hospitals

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Harrisburg 903 1873
86
Pittsburgh Regional Transitrideprt.org

Operate and maintain bus, rail, and incline transit services in the Pittsburgh metropolitan area with a workforce of 2,600 employees.

Truck Transportation ๐Ÿ‡บ๐Ÿ‡ธ Pittsburgh 892 1964
87
Independence Health System - Butler/Clarion Areaindependence.health

Provides quality care in cardiology, orthopedics, maternity, surgery, emergency, behavioral health, and primary care across multiple hospitals.

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Butler 883 1898
88
Fulton Financial Corporationfultonbank.com

A regional financial holding company offering a wide range of products and services, focused on building lasting relationships and providing excellent customer service

Banking ๐Ÿ‡บ๐Ÿ‡ธ Lancaster 871 1882
89
Berkshire Hathaway GUARD Insurance Companiesguard.com

A highly rated property & casualty insurer offering customizable insurance products through independent agents, with a focus on customer needs and privacy

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Wilkes-Barre 867 1983
90
Philadelphia Water Departmentwater.phila.gov

This company provides integrated water, wastewater, and stormwater services to the City of Philadelphia's 15 million residents, focusing on high-quality water supply and watershed management

Government Administration ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 863 1951
91
Federal Reserve Bank of Philadelphiaphiladelphiafed.org

Implement monetary policy, supervise banks, provide financial services to institutions and government One of 12 regional Reserve Banks in Federal Reserve System

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 852 1914
92
Evangelical Community Hospitalwellspan.org

Providing personalized, affordable healthcare with diverse specialty services including orthopaedics, surgical care, diabetes management, and urgent care for communities.

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Lewisburg 834 1926
93
Nazareth Hospitaltrinityhealthma.org

Providing compassionate healthcare services to Northeast Philadelphia and surrounding areas for over 75 years with a focus on personal care

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 825 1940
94
Pennsylvania Turnpike Commissionpaturnpike.com

Operates and maintains 564 miles of toll roads in Pennsylvania, including America's first superhighway Visit wwwpaturnpikecom for more information

Truck Transportation ๐Ÿ‡บ๐Ÿ‡ธ Middletown 816 1940
95
QNB Bankqnbbank.com

A community-focused bank providing a range of financial services, including banking, loans, investments, and digital banking options in Pennsylvania since 1877

Banking ๐Ÿ‡บ๐Ÿ‡ธ Quakertown 799 1877
96
Grand View Healthgvh.org

A community health system providing a range of inpatient and outpatient services including cancer care, cardiology, orthopaedics, surgery, and women's and children's health

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Sellersville 784 1873
97
Sun Healthcare Groupgenesishcc.com

Sun Healthcare Group was acquired by Genesis HealthCare Employees should update profiles to Genesis HealthCare Followers should start following Genesis HealthCare for updates

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Kennett Square 738 n/a
98
CNB Bankcnbbank.bank

Leader in integrated financial solutions offering checking, savings, loans, credit cards, wealth management, and more in multiple states, with a focus on community involvement

Banking ๐Ÿ‡บ๐Ÿ‡ธ Clearfield 734 1865
99
The Pennsylvania Department of Human Servicesdhs.pa.gov

The company's mission is to help Pennsylvanians lead safe and healthy lives while responsibly managing commonwealth resources for vulnerable individuals and families

Government Administration ๐Ÿ‡บ๐Ÿ‡ธ Harrisburg 732 n/a
100
Philadelphia Fire Departmentphila.gov

The company provides fire protection, emergency medical services, and specialized divisions to investigate fires and protect Philadelphia International Airport

Public Safety ๐Ÿ‡บ๐Ÿ‡ธ Philadelphia 722 1871

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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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