| # | Company | Employees |
|---|---|---|
| 1 |
Comcastcomcast.com
Delivering broadband, mobile, and video products, along with entertainment, sports, news, and theme park experiences; driven by passionate creators and innovators |
189,000 |
| 2 | 64,159 | |
| 3 | 41,860 | |
| 4 |
Select Medicalcareers.selectmedical.com
Specialized hospital and rehabilitative care provider operating recovery hospitals, outpatient centers, and occupational health facilities across the United States. |
25,292 |
| 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. |
21,979 |
| 6 |
Jefferson Healthjeffersonhealth.org
This company is dedicated to providing excellent clinical care, educating future health professionals, and advancing research in health sciences |
18,520 |
| 7 |
Children's Hospital of Philadelphiachop.edu
Specialized pediatric hospital providing exceptional patient care, pioneering medical research, and training future pediatric healthcare professionals. |
18,042 |
| 8 |
Geisingergeisinger.org
Healthcare organization with 13 hospital campuses, research centers, medical college, and health plan serving millions in Pennsylvania Committed to quality healthcare |
15,962 |
| 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. |
15,876 |
| 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 |
14,566 |
| 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. |
12,163 |
| 12 |
Penske Logisticspenskelogistics.com
provider of dedicated transportation, distribution management, 4PL, freight brokerage, and technology solutions for diverse industries worldwide |
11,808 |
| 13 |
Allegheny Health Networkahn.org
Integrated healthcare delivery system with hospitals, medical centers, wellness pavilions, and numerous physician practices serving Western Pennsylvania. |
11,676 |
| 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 |
11,400 |
| 15 | 11,329 | |
| 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 |
11,156 |
| 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. |
10,801 |
| 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 |
9,292 |
| 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 |
9,033 |
| 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 |
8,037 |
| 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. |
7,832 |
| 22 |
Highmarkhighmark.com
A leading health insurance organization delivering high-quality, accessible, and affordable solutions to 68 million members in multiple states |
7,672 |
| 23 |
PPL Corporationpplweb.com
Providing electricity to millions, building smarter, resilient power grids, advancing sustainable energy solutions, and fostering inclusive work environments. |
7,118 |
| 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. |
6,685 |
| 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 |
5,770 |
| 26 |
Newreznewrez.com
Providing personalized mortgage loans, refinancing options, and home equity solutions with dedicated support, especially for military families. |
5,327 |
| 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 |
5,226 |
| 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. |
4,900 |
| 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 |
4,550 |
| 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 |
3,982 |
| 31 |
Xfinityxfinity.com
Revolutionizing connectivity with the Xfinity 10G Network, leading the way into the future of high-speed internet services |
3,979 |
| 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 |
3,892 |
| 33 |
Einstein Healthcare Networkjeffersonhealth.org
Healthcare network serving Philadelphia and Montgomery County, offering comprehensive medical services and patient care across multiple facilities. |
3,812 |
| 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 |
3,764 |
| 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 |
3,489 |
| 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 |
3,455 |
| 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. |
3,174 |
| 38 |
Fulton Bankfultonbank.com
A community-oriented bank focused on personalized service, financial solutions, and fostering lasting relationships while promoting equality and career growth |
2,886 |
| 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 |
2,823 |
| 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 |
2,507 |
| 41 | 2,481 | |
| 42 |
Independence Health Systemindependence.health
Provides quality cardiology, orthopedics, maternity, surgical, emergency, behavioral health services with a large network of primary care physicians. |
2,261 |
| 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 |
2,158 |
| 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. |
2,146 |
| 45 |
Northwest Banknorthwest.bank
A financial institution focused on improving lives through award-winning customer service in Pennsylvania, New York, Indiana, and Ohio |
2,003 |
| 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 |
1,809 |
| 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 |
1,705 |
| 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 |
1,701 |
| 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 |
1,694 |
| 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 |
1,684 |
| 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 |
1,635 |
| 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 |
1,588 |
| 53 |
Inframarkinframark.com
Specializing in water infrastructure management, operations, and support services, we tailor solutions for clients to achieve performance, safety, compliance, and reliability |
1,527 |
| 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 |
1,515 |
| 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 |
1,491 |
| 56 |
Vibra Healthcarevibrahealthcare.com
Providing patient-centered care with a supportive culture, career growth, flexible hours, and a commitment to clinical excellence. |
1,480 |
| 57 |
UPMC Pinnacleupmcpinnacle.com
Health system with seven hospitals, outpatient clinics, and over 2,900 healthcare professionals serving multiple counties in Pennsylvania |
1,449 |
| 58 |
Dollar Bankdollar.bank
An inclusive community bank investing in customers, empowering employees, and strengthening communities while prioritizing customer privacy and data protection |
1,442 |
| 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. |
1,428 |
| 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 |
1,421 |
| 61 | 1,413 | |
| 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 |
1,409 |
| 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 |
1,408 |
| 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 |
1,364 |
| 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 |
1,339 |
| 66 |
Metro Bankfnb-online.com
regional financial services provider with multiple banking offices across Pennsylvania, offering full-service banking to local communities and businesses. |
1,316 |
| 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 |
1,284 |
| 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 |
1,273 |
| 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 |
1,267 |
| 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. |
1,232 |
| 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 |
1,183 |
| 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 |
1,154 |
| 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 |
1,149 |
| 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. |
1,148 |
| 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 |
1,095 |
| 76 |
Philadelphia Gas Workspgworks.com
provides natural gas energy services and solutions to over 500,000 residential and commercial customers in Philadelphia city |
1,047 |
| 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 |
1,028 |
| 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 |
1,018 |
| 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 |
1,004 |
| 80 |
Univestunivest.net
A growing financial corporation offering banking, insurance, investments, trust, wealth management, leasing, and mortgage banking services to local communities |
1,004 |
| 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 |
947 |
| 82 | 938 | |
| 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 |
919 |
| 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 |
903 |
| 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 |
903 |
| 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. |
892 |
| 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. |
883 |
| 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 |
871 |
| 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 |
867 |
| 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 |
863 |
| 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 |
852 |
| 92 |
Evangelical Community Hospitalwellspan.org
Providing personalized, affordable healthcare with diverse specialty services including orthopaedics, surgical care, diabetes management, and urgent care for communities. |
834 |
| 93 |
Nazareth Hospitaltrinityhealthma.org
Providing compassionate healthcare services to Northeast Philadelphia and surrounding areas for over 75 years with a focus on personal care |
825 |
| 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 |
816 |
| 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 |
799 |
| 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 |
784 |
| 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 |
738 |
| 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 |
734 |
| 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 |
732 |
| 100 |
Philadelphia Fire Departmentphila.gov
The company provides fire protection, emergency medical services, and specialized divisions to investigate fires and protect Philadelphia International Airport |
722 |
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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.
More company lists in Pennsylvania
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- Healthcare providers in Pennsylvania 139
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- IT Services and IT Consulting companies in Pennsylvania 134
- SaaS companies in Pennsylvania 104
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- Family-owned companies in Pennsylvania 73
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- Retail companies in Pennsylvania 69
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- Publicly traded companies in Pennsylvania 64
- Non-profit Organizations companies in Pennsylvania 63
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