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The 87 largest critical infrastructure operators in Poland

Tamtam tracks 87 critical infrastructure operators headquartered in Poland. This list ranks all of them by number of employees on LinkedIn, led by PKO Bank Polski, PZU and Bank Pekao S.A.. Their median headcount is 888. Half of them were founded in 1998 or later. The most common headquarters are Warsaw (58), Kraków (4) and Wrocław (2).

🇵🇱 Poland87 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
PKO Bank Polskipkobp.pl

Leading bank in Poland offering retail, corporate, and investment services with a focus on customer needs, quality service, and comprehensive financial solutions

Banking 🇵🇱 Warsaw 30,000 1919
2
PZUpzu.pl

We value proactive individuals with a strong sense of initiative We offer attractive compensation, benefits, reasonable working hours, and encourage personal development

Insurance 🇵🇱 Warsaw 10,875 1803
3
Bank Pekao S.A.pekao.com.pl

One of the largest financial institutions in Central and Eastern Europe, serving retail, corporate, private banking, asset management, and brokerage clients.

Banking 🇵🇱 Warsaw 9,369 1929
4
mBank S.A.mbank.pl

Leading provider of innovative online and mobile banking solutions, recognized for advanced electronic banking platform and strong market presence.

Banking 🇵🇱 Warsaw 7,286 1986
5
Social Insurance Institutionzus.pl

We handle social insurance matters, collecting contributions, granting pensions, and sharing knowledge to help people navigate the social insurance system effectively and responsibly

Insurance 🇵🇱 Warsaw 5,528 n/a
6
Poczta Polska S. A.poczta-polska.pl

Largest national postal operator with extensive network offering postal, parcel, financial, insurance, logistics, and expanding digital services to individuals and businesses.

Transportation, Logistics, Supply Chain and Storage 🇵🇱 Warsaw 5,521 1558
7
Alior Bank SAaliorbank.pl

An innovative financial institution in Poland, combining tradition with innovation, with a focus on development, autonomy, and a strong customer base

Banking 🇵🇱 Warsaw 5,349 2008
8
InPostinpost.pl

Operates and manufactures automated parcel lockers, revolutionizing e-commerce delivery by providing convenient parcel send, collection, and return services.

Transportation, Logistics, Supply Chain and Storage 🇵🇱 Kraków 4,783 2006
9
Orange Polskaorange.pl

Leading provider of telecommunications services in Poland, offering fixed-line voice, internet, VoIP, mobile services, data transmission, multimedia, and internet services to millions of customers

Telecommunications 🇵🇱 Warsaw 4,777 1991
10
Santander Bank Polskasantander.pl

Innovative financial platform offering comprehensive services for individuals, SMEs, and corporations with a strong focus on customer satisfaction and modern banking technologies

Banking 🇵🇱 Warsaw 4,285 n/a
11
Bank Millenniumbankmillennium.pl

provides universal financial services to all market segments through branches, advisors, electronic banking, and affiliated leasing, brokerage, and investment fund companies

Banking 🇵🇱 4,191 1989
12
PLAYplay.pl

A leading telecommunications company in Poland focused on innovative solutions and rapid growth, with over 16 million customers and a strong 4G LTE network

Telecommunications 🇵🇱 Warsaw 3,945 n/a
13
ING Polanding.pl

Provides integrated financial services for retail and corporate banking clients, helping them make smart financial decisions, and building valuable long-term relationships.

Banking 🇵🇱 Katowice 3,894 1988
14
PKN ORLEN S.A.orlen.pl

Integrated multi-utility in Central Europe and Canada providing energy and fuel to millions, focusing on clean technologies for emission neutrality by 2050

Oil and Gas 🇵🇱 Płock 3,800 1999
15
BNP Paribas Bank Polskabnpparibas.pl

A universal bank in Poland offering savings, loans, and investment products for individuals and businesses, with a focus on agriculture and food sectors

Banking 🇵🇱 Warsaw 3,468 n/a
16
Polkomtelgrupapolsatplus.pl

Operator of a mobile network with 135 million users, offering voice, data, location-based services, mobile payments, supporting safety, health, education, and sports projects

Telecommunications 🇵🇱 Warsaw 3,330 1996
17
LUX MEDluxmed.pl

Leader in private healthcare with over 1600 facilities across Poland, providing high-quality medical services to 12 million patients with a focus on trust, satisfaction, and health

Hospitals and Health Care 🇵🇱 Warsaw 3,270 n/a
18
Erste Bank Polskaerste.pl

Provides banking services and financial tools, supporting individuals and businesses in realizing plans, fostering confidence and growth through accessible and evolving solutions.

Banking 🇵🇱 Warsaw 3,198 n/a
19
LOT Polish Airlineslot.com

National airline offering safe, comfortable flights with modern fleet, efficient connections, and strong presence in Central Europe.

Airlines and Aviation 🇵🇱 Warsaw 2,764 1929
20
Wartawarta.pl

A top insurer offering a wide range of insurance products for individuals and businesses, with high financial ratings and a focus on customized coverage and customer service

Insurance 🇵🇱 Wola 2,698 1920
21
PKP Polskie Linie Kolejowe S.A.plk-sa.pl

This company manages the national rail network and provides customized timetables for passenger and freight rail operators based on contract agreements

Rail Transportation 🇵🇱 Warsaw 2,537 2001
22
VeloBank S.A.velobank.pl

An innovative universal bank providing secure, transparent, and modern financial solutions via a network of branches and digital access channels

Financial Services 🇵🇱 Wola 2,514 2022
23
Credit Agricole Bank Polska S.A.credit-agricole.pl

An international financial group in 54 countries, offering universal banking services with a focus on long-term client relationships, professional advice, and innovative digital solutions

Banking 🇵🇱 Wrocław 2,379 n/a
24
T-Mobile Polskamagentateam.pl

Provider of telecommunications and technology solutions focused on innovation, serving individual and business customers with agile, diverse team culture.

Telecommunications 🇵🇱 Warsaw 2,157 n/a
25
ERGO Hestiaergohestia.pl

Leading insurance provider in Poland, offering non-life insurance to individuals, small and medium businesses, and major corporations with rapid policy issuance and compensation decisions

Insurance 🇵🇱 Sopot 1,916 1991
26
Bank Gospodarstwa Krajowegobgk.pl

This organization in Warszawa, Poland provides banking services including commercial banking, financing for businesses and government projects, and depository services Founded in 1924

Banking 🇵🇱 Warsaw 1,851 1924
27
PGE Polska Grupa Energetycznagkpge.pl

The company is the largest electric utility in Poland, operating throughout the value chain from generation to distribution and supply

Electric Power Generation 🇵🇱 Warsaw 1,825 n/a
28
Medicover Polskamedicover.pl

Provider of comprehensive healthcare services including preventive care, outpatient services, hospital care, dental services, in vitro procedures, well-being solutions, sports, diet, and fitness clubs

Hospitals and Health Care 🇵🇱 Warsaw 1,689 1995
29
UNIQA Polskauniqa.pl

Two insurance companies in Poland, UNIQA and AXA, have merged, with UNIQA now owning AXA in the country under the UNIQA brand

Insurance 🇵🇱 Warsaw 1,453 n/a
30
Grupa TAURONtauron.pl

A major producer of electricity and heat in Poland, focusing on green energy transformation through wind, solar, hydro, and gas power plants

Electric Power Generation 🇵🇱 Katowice 1,434 n/a
31
Allianz Polskaallianz.pl

Established in Poland in 1997, the group has become a leader in the financial and insurance market through dynamic growth

Insurance 🇵🇱 Warsaw 1,428 n/a
32
Diagnostykadiag.pl

A leading Polish network of medical laboratories offering a wide range of laboratory tests and services, employing 7000 specialists and utilizing a proprietary IT system

Hospitals and Health Care 🇵🇱 Kraków 1,412 1998
33
Polskie Sieci Elektroenergetyczne S.A.pse.pl

Leading operator in the Polish energy sector, responsible for safe and efficient operation of the power system, with a focus on sustainable development and innovation

Electric Power Transmission, Control, and Distribution 🇵🇱 Konstancin-Jeziorna 1,285 2004
34
PKP Intercityintercity.pl

Providing fast and convenient train travel across Poland and Europe, specializing in long-distance national and international transportation with a focus on passenger satisfaction and comfort

Rail Transportation 🇵🇱 Warsaw 1,254 2001
35
Centralny Ośrodek Informatykicoi.gov.pl

The company specializes in providing IT services for the Ministry of Digitization and public administration, including building and maintaining IT systems

IT Services and IT Consulting 🇵🇱 Warsaw 1,174 2010
36
Santander Consumer Bank SAsantanderconsumer.pl

A leading player in the consumer finance market in Poland, offering a range of loans, credit cards, financing options, deposits, and insurance products

Banking 🇵🇱 Wrocław 1,127 2006
37
PGNiGpgnig.pl

We are a leading natural gas extraction company and the largest importer in Poland, ensuring a secure supply of resources as part of an international group

Oil, Gas, and Mining 🇵🇱 Warsaw 1,097 n/a
38
NASKnask.pl

Leading Polish data networks operator, offers telecommunications and data solutions, conducts scientific research, manages .pl internet domains, and provides computer emergency response.

Computer and Network Security 🇵🇱 Warsaw 1,068 1993
39
TAURON Dystrybucja SAtauron-dystrybucja.pl

The company is the largest electricity distributor in Poland, providing energy to over 57 million customers, focusing on ensuring continuous electricity supply

Electric Power Transmission, Control, and Distribution 🇵🇱 Kraków 1,017 n/a
40
Cyfrowy Polsat S.A.polsatbox.pl

A market leader in media entertainment and telecom in Poland, delivering top-quality TV content, telecommunication products, and services for residential and business customers

Telecommunications 🇵🇱 Warsaw 972 1999
41
PKP CARGO S.A.pkpcargo.com

Logistics operator providing intermodal rail freight, terminal services, and international transport solutions across Poland and European Union countries.

Truck Transportation 🇵🇱 Warsaw 971 2001
42
GAZ-SYSTEMgaz-system.pl

Leader in Poland's gas transmission, managing a vast network and transporting billions of cubic meters annually, investing in energy infrastructure and supporting local communities

Oil and Gas 🇵🇱 Warsaw 962 2004
43
Państwowe Gospodarstwo Wodne Wody Polskiegov.pl

Main entity responsible for water management in Poland, ensuring protection against flooding and drought, maintaining water quality, and overseeing water services

Government Administration 🇵🇱 Warsaw 922 2018
44
Narodowy Bank Polski (NBP)nbp.pl

Central bank responsible for monetary policy, currency issuance, managing state reserves, supporting public sector and banking system operations.

Banking 🇵🇱 Warsaw 888 1945
45
PZU Zdrowiezdrowie.pzu.pl

Leader in private healthcare in Poland with a network of medical centers, diagnostic services, and partnerships, focusing on preventive care and promoting a healthy lifestyle

Hospitals and Health Care 🇵🇱 Warsaw 867 n/a
46
Provident Polskaprovident.pl

A leading employer in Poland offering cash loans, emphasizing respect, transparency, and responsibility Providing opportunities for career growth and attractive benefits

Financial Services 🇵🇱 Warsaw 864 1997
47
enel-medenel.pl

A leading Polish medical company offering a full range of healthcare services, including aesthetic medicine, sports medicine, rehabilitation, and corporate healthcare programs

Hospitals and Health Care 🇵🇱 Warsaw 860 1993
48
PKP S.A.pkp.pl

A company overseeing transportation logistics services and managing one of Poland's largest real estate portfolios, including railway stations and commercial properties

Rail Transportation 🇵🇱 Warsaw 844 1926
49
Bank Ochrony Środowiska S.A.bosbank.pl

A leader in environmental protection financing and banking services, offering a range of financial products and support for ecological investments

Banking 🇵🇱 Warsaw 832 1991
50
Grupa Eneaenea.pl

A leading player in the Polish electricity market, managing the entire value chain from fuel to distribution, with a focus on safe energy delivery to 25 million customers

Electric Power Generation 🇵🇱 Poznań 789 n/a
51
Grupa Energagrupa.energa.pl

A leading energy group in Poland distributing electricity, generating power from renewable sources, and listed on the Warsaw Stock Exchange

Renewable Energy Power Generation 🇵🇱 Gdańsk 777 2006
52
Generalna Dyrekcja Dróg Krajowych i Autostradgov.pl

The company's mission is to maintain and develop Poland's national roads and highways, focusing on safety, environmental impact, and travel comfort

Government Administration 🇵🇱 Warsaw 773 2002
53
PGE Energetyka Kolejowapgeenergetykakolejowa.pl

We are a team dedicated to delivering high-quality services, focusing on innovation, technology, and continuous improvement in the railway and power infrastructure sectors

Utilities 🇵🇱 Warsaw 756 2001
54
Nest Bank S.A.nestbank.pl

A company prioritizing entrepreneurs by offering innovative solutions like online business loans, 24/7 accounts, and easy formalities for quick development and success

Banking 🇵🇱 Warsaw 722 2016
55
Bank Pocztowy SApocztowy.pl

A secure Polish bank with a wide network offering traditional and modern financial services, blending tradition with innovation to deliver award-winning results

Banking 🇵🇱 Bydgoszcz 708 1990
56
Enter Airenterair.pl

A leading airline operating flights from Portugal to Kenya and Thailand with a fleet of Boeing 737-800 aircraft, ensuring high service standards

Airlines and Aviation 🇵🇱 Mokotów 681 2009
57
Szpital Uniwersytecki w Krakowiesu.krakow.pl

A large hospital in Poland with over 200 years of history, offering a wide range of medical services and serving as a referral center for millions of residents

Hospitals and Health Care 🇵🇱 Kraków 656 n/a
58
LS Airport Services S.A.lsas.aero

LS Airport Services provides ground handling services for passenger, private, military, and government aircraft, as well as cargo services and management of a cargo terminal park in Poland

Airlines and Aviation 🇵🇱 Warsaw 631 1995
59
Energa-Operator S.A.energa-operator.pl

The company acts as a distributor of electricity, serving over 33 million customers in a quarter of Poland's area They also handle energy measurements and data transmission

Electric Power Transmission, Control, and Distribution 🇵🇱 Gdańsk 623 n/a
60
POLREGIOpolregio.pl

The largest passenger carrier in Poland, providing about 1500 trains daily financed by local governments, serving nearly 72 million passengers annually

Rail Transportation 🇵🇱 Warsaw 621 2001
61
Stefczyk Finanse S.A.kasastefczyka.pl

Financial institution providing services since 1993 Mission to increase economic awareness and educate society Employing experts in over 300 locations Join us for a career

Financial Services 🇵🇱 Gdynia 620 2011
62
PGE Energia Ciepła S.A.pgeenergiaciepla.pl

The company is a leader in the energy market and environmentally friendly district heating production, following the sale of its Polish assets in 2017

Appliances, Electrical, and Electronics Manufacturing 🇵🇱 Warsaw 607 n/a
63
Pru – Prudential Polska

With a history dating back to 1848, we assist clients in making sound financial decisions to secure their future worldwide

Insurance 🇵🇱 Warsaw 605 n/a
64
Ryanair Sun S.A.ryanairsun.com

A new Polish airline, Ryanair SUN, starting in summer 2018, offering flights and travel services to customers

Airlines and Aviation 🇵🇱 Warsaw 599 2018
65
Idea Bank S.A. (Polska)ideabank.pl

The company supports entrepreneurs in realizing their business dreams by offering easy access to a variety of financial products and long-term business solutions

Banking 🇵🇱 Wola 590 n/a
66
Enea Operatoroperator.enea.pl

A major energy operator in Poland managing distribution systems across six provinces, delivering over 20 TWh of electricity annually to millions of customers

Electric Power Transmission, Control, and Distribution 🇵🇱 Poznań 582 n/a
67
Bank BPS SAbankbps.pl

An innovative bank in Poland, serving over 300 Cooperative Banks, providing modern banking services, supporting local communities, and valuing diversity

Banking 🇵🇱 Warsaw 578 n/a
68
Compensa Polskacompensa.pl

An innovative insurance provider fostering relationships with clients and insurance advisors, driven by a team focused on collaboration and excellence Proud member of Vienna Insurance Group

Insurance 🇵🇱 Warsaw 574 1990
69
UniCredit Polskaunicredit.pl

An online bank offering savings and daily banking services with full transparency, helping customers grow their money and achieve financial goals

Banking 🇵🇱 Warsaw 491 2025
70
Veolia | Polskaveolia.pl

A trusted partner in Poland for 25 years, offering innovative environmental services for cities and industries, focusing on sustainable development

Environmental Services 🇵🇱 Warsaw 465 n/a
71
JAS-FBG S.A.jasfbg.com.pl

Providing comprehensive logistics services including road, rail, sea, air transport, parcel distribution, and customs agency network across Poland and Europe.

Transportation, Logistics, Supply Chain and Storage 🇵🇱 Katowice 446 1991
72
Paytenpayten.com

Consolidating issuing, acquiring, processing, and acceptance under a single technology stack for banks, fintechs, and merchants, simplifying multi-vendor complexity with one integration point and contractual relationship.

Financial Services 🇵🇱 Warsaw 402 n/a
73
Warsaw Stock Exchange (GPW)gpw.pl

The company operates trading platforms for various financial instruments, provides indices and benchmarks, and is classified as a Developed Market

Financial Services 🇵🇱 321 1991
74
Polenergiapolenergia.pl

Leading Polish energy group specializing in renewable and low-emission energy production, distribution, and sales Committed to sustainable development and transitioning towards clean energy solutions

Renewable Energy Power Generation 🇵🇱 Warsaw 314 2000
75
Remondis Polskaremondis-polska.pl

A global provider of waste management and recycling services, operating in 33 countries with 800 facilities and 32,000 employees Serving 30 million residents annually

Environmental Services 🇵🇱 Warsaw 237 1992
76
ENGIE Polskaengie-polska.pl

Provider of high-quality services in facility management, technical equipment maintenance, digital services, energy solutions, and electromobility, with a focus on environmental sustainability and community partnerships

Renewable Energy Semiconductor Manufacturing 🇵🇱 Warsaw 220 n/a
77
PEKAES Grouppekaes.pl

Leading Polish logistics group, offering comprehensive supply chain services: domestic/international LTL, FTL, warehousing, sea, air, rail, bulk, intermodal freight.

Transportation, Logistics, Supply Chain and Storage 🇵🇱 Błonie 136 1958
78
AGRO Ubezpieczenia - Towarzystwo Ubezpieczeń Wzajemnychagroubezpieczenia.pl

100% Polish mutual insurance company offering a comprehensive range of insurance products for individuals and businesses, including motor, home, agricultural, travel, and commercial insurance

Insurance 🇵🇱 Warsaw 103 2003
79
LINKTISlinktis.com

Two companies provide comprehensive global transport services, specializing in road, sea, air, and rail freight, with a dedicated team of experts.

Transportation, Logistics, Supply Chain and Storage 🇵🇱 Warsaw 84 n/a
80
Salvesalve.pl

Leading local medical network in Łódź with 6 clinics and a hospital, employing over 400 specialized doctors, providing comprehensive medical care to patients

Hospitals and Health Care 🇵🇱 Łódź 79 1993
81
MARATHON INTERNATIONAL (MARATHON Holding)emarathon.eu

International transport, warehousing, and logistics services, including road transport, hazardous materials storage, e-commerce fulfillment, truck services, and fueling.

Transportation, Logistics, Supply Chain and Storage 🇵🇱 Kostrzyn 76 2003
82
Green Capital S.A.greencapitalsa.ai

Develops, constructs, and operates renewable energy projects, specializing in photovoltaic and wind farms and energy storage, contributing to clean electricity production and energy security.

Renewable Energy Power Generation 🇵🇱 Warsaw 64 2015
83
Neo Energy Groupneoenergygroup.pl

Develops and operates diverse renewable energy sources: solar, wind, biogas, and energy storage, boasting a 4.8 GW portfolio. Leader in Polish landfill biogas.

Renewable Energy Power Generation 🇵🇱 Warsaw 62 2017
84
Millennium TFI S.A.millenniumtfi.pl

A leading asset manager in Poland with expertise in managing financial assets, offering open-ended mutual funds and retirement solutions for individual clients

Financial Services 🇵🇱 Warsaw 33 2001
85
Polski Bank Spółdzielczy w Poznaniupbswpoznaniu.pl

One of the oldest cooperative banks in Poland, offering a wide range of modern banking products and services exclusively based on Polish capital and traditions

Banking 🇵🇱 Poznań 32 n/a
86
Bank Spółdzielczy w Pleszewiebspleszew.pl

The company provides a range of financial services including accepting cash deposits, managing bank accounts, providing loans, conducting money transfers, issuing payment cards, and offering consultancy and insurance services

Financial Services 🇵🇱 Pleszew 12 1862
87
Prosper Capital Dom Maklerski S.A.pcdm.pl

Investment firm facilitating capital acquisition and investment through financial instruments, emission and distribution, advisory services, and partnerships with renewable energy businesses

Investment Banking 🇵🇱 Warsaw 6 2007

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Oct 24, 2026.

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