# The 50 largest corporate groups and holding companies in Masovia

Tamtam tracks 56 corporate groups and holding companies headquartered in Masovia. This list ranks the 50 largest by number of employees on LinkedIn, led by PZU, Poczta Polska S. A. and PKN ORLEN S.A.. Their median headcount is 526. Half of them were founded in 1993 or later. The most common headquarters are Warsaw (43).

These are large corporate groups and holding companies based in Masovia, predominantly in Warsaw. They represent a mix of established industries such as insurance, logistics, energy, and banking, alongside manufacturing and media. PZU, founded in 1803, is a major insurer, while Poczta Polska S. A., established in 1558, is the national postal operator. PKN ORLEN S.A. is an integrated multi-utility company, and Erste Bank Polska provides banking services.

The data shows a strong concentration of headquarters in Warsaw, indicating its role as a central business hub within the region. Many of these companies have a long history, with several founded in the 20th century or earlier, suggesting a mature corporate landscape.

🇵🇱 Masovia · 50 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [PZU](https://www.tamtam.ai/c/pzu) (pzu.pl)<br>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 |
| 2 | [Poczta Polska S. A.](https://www.tamtam.ai/c/poczta-polska-s-a) (poczta-polska.pl)<br>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 |
| 3 | [PKN ORLEN S.A.](https://www.tamtam.ai/c/orlen-s-a) (orlen.pl)<br>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 |
| 4 | [Erste Bank Polska](https://www.tamtam.ai/c/erste-bank-polska) (erste.pl)<br>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 |  |
| 5 | [Inter Cars S.A.](https://www.tamtam.ai/c/inter-cars-s-a) (intercars.com)<br>A leading importer and distributor of automotive spare parts with a vast product range including garage equipment and motorcycle parts With over 240 branches in Europe | Motor Vehicle Manufacturing | 🇵🇱 Swobodnia | 2,561 | 1990 |
| 6 | [PGE Polska Grupa Energetyczna](https://www.tamtam.ai/c/pge-polska-grupa-energetyczna) (gkpge.pl)<br>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 |  |
| 7 | [BSH Sprzęt Gospodarstwa Domowego Polska](https://www.tamtam.ai/c/bsh-sprzet-gospodarstwa-domowego-polska) (bsh-group.com)<br>A leading manufacturer of household appliances with multiple factories in Poland, offering a portfolio of well-known brands in the market | Manufacturing | 🇵🇱 Warsaw | 1,805 | 1993 |
| 8 | [Adamed Pharma](https://www.tamtam.ai/c/adamed-pharma) (adamed.com)<br>A pharmaceutical and biotechnological company with over 20 years of research and development experience, selling 500 products in 78 countries worldwide | Pharmaceutical Manufacturing | 🇵🇱 Warsaw | 1,609 | 1986 |
| 9 | [Benefit Systems SA](https://www.tamtam.ai/c/benefit-systems-sa) (benefitsystems.pl)<br>We specialize in providing innovative employee benefits in Poland, focusing on sports, culture, and tailored cafeteria programs to enhance satisfaction and motivation | Wellness and Fitness Services | 🇵🇱 Warsaw | 1,240 | 2000 |
| 10 | [Ringier Axel Springer Polska](https://www.tamtam.ai/c/ringier-axel-springer-polska) (ringieraxelspringer.pl)<br>Leading Polish media and technology company with diverse digital and print publications, e-commerce, classifieds, mobile apps, and integrated advertising services. | Technology, Information and Internet | 🇵🇱 Warsaw | 1,220 |  |
| 11 | [Grupa Wirtualna Polska](https://www.tamtam.ai/c/grupa-wirtualna-polska) (holding.wp.pl)<br>Leading digital media and technology company focused on transforming internet experiences through innovative content, services, and user engagement strategies. | Technology, Information and Internet | 🇵🇱 Warsaw | 1,135 | 1995 |
| 12 | [Agora SA](https://www.tamtam.ai/c/agora-sa) (kariera.agora.pl)<br>One of the largest media entities in Poland, operating for over 30 years in areas such as traditional and digital press, online projects, radio, cinema, and publishing | Media Production | 🇵🇱 Warsaw | 1,065 | 1989 |
| 13 | [PKP CARGO S.A.](https://www.tamtam.ai/c/pkp-cargo-s-a) (pkpcargo.com)<br>Logistics operator providing intermodal rail freight, terminal services, and international transport solutions across Poland and European Union countries. | Truck Transportation | 🇵🇱 Warsaw | 971 | 2001 |
| 14 | [Seris Konsalnet](https://www.tamtam.ai/c/seris-konsalnet) (seris.pl)<br>The company is a leading provider of security, protection, and cleaning services in Poland, part of an international security group They offer physical security, technical security, monitoring, cleaning services, and property management With over 30 years of experience, they serve a wide range of clients, including banks, retail chains, public utilities, strategic facilities, commercial enterprises, industrial companies, and military units With over 20,000 employees and offices throughout the country, they strive to provide high-quality services tailored to all market segments | Security and Investigations | 🇵🇱 Warsaw | 888 | 1994 |
| 15 | [enel-med](https://www.tamtam.ai/c/enel-med) (enel.pl)<br>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 |
| 16 | [Qemetica](https://www.tamtam.ai/c/qemetica) (qemetica.com)<br>International chemical group manufacturing sodium carbonate, sodium bicarbonate, salt, silicates, plant protection products, and polyurethane foams for various global industries. | Chemical Manufacturing | 🇵🇱 Warsaw | 850 |  |
| 17 | [GK Polimex Mostostal](https://www.tamtam.ai/c/gk-polimex-mostostal) (polimex-mostostal.pl)<br>Specializes in industrial construction, energy, petrochemical, and environmental projects domestically and internationally, producing steel structures and gratings Publicly traded since 1997 | Construction | 🇵🇱 Warsaw | 844 | 1945 |
| 18 | [PKP S.A.](https://www.tamtam.ai/c/pkp-s-a) (pkp.pl)<br>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 |
| 19 | [Bosch Polska](https://www.tamtam.ai/c/bosch-polska) (bosch.pl)<br>Global provider of technology and services with a focus on IoT solutions for smart homes, cities, and mobility Operating in various sectors worldwide | Industrial Machinery Manufacturing | 🇵🇱 Warsaw | 816 | 1992 |
| 20 | [Comp S.A.](https://www.tamtam.ai/c/comp-s-a) (comp.com.pl)<br>Specializing in IT and network security, as well as trade, services, and logistics solutions, with a focus on fiscal equipment and digital service platforms | Computer and Network Security | 🇵🇱 Warsaw | 784 | 1990 |
| 21 | [Sokolow S.A.](https://www.tamtam.ai/c/sokolow-s-a) (sokolow.pl)<br>A food production company based in Warsaw, Poland, specializing in creating a variety of food products | Food and Beverage Manufacturing | 🇵🇱 Warsaw | 701 |  |
| 22 | [PGE Energia Ciepła S.A.](https://www.tamtam.ai/c/pge-energia-ciepla-s-a) (pgeenergiaciepla.pl)<br>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 |  |
| 23 | [Grupa Pracuj](https://www.tamtam.ai/c/grupa-pracuj) (pracujwgp.pl)<br>An expert in online recruitment, offering HR technological solutions like ATS and communication platforms to help companies manage efficient recruitment and staff | Technology, Information and Internet | 🇵🇱 Warsaw | 597 | 2000 |
| 24 | [WeNet Group S.A.](https://www.tamtam.ai/c/wenet-group-s-a) (wenet.pl)<br>Leading Polish internet marketing provider offering online solutions for better visibility, increased sales, and improved customer communication, trusted by 50,000 entrepreneurs Employing 1,000+ specialists nationwide | Advertising Services | 🇵🇱 Warsaw | 590 | 2009 |
| 25 | [Grupa ZPR Media](https://www.tamtam.ai/c/grupa-zpr-media) (grupazpr.pl)<br>Publishing magazines, newspapers, operating radio and TV stations, managing websites, e-commerce, internet marketing, and event organization in Poland. | Media Production | 🇵🇱 Warsaw | 526 | 2014 |
| 26 | [Onet](https://www.tamtam.ai/c/onet) (onet.pl)<br>A leading media company in Poland, part of an international group, publishing over 100 press titles, operating 70 online services, offering diverse media and e-commerce products | Technology, Information and Internet | 🇵🇱 Warsaw | 501 | 1996 |
| 27 | [Vistula University](https://www.tamtam.ai/c/vistula-university) (vistula.edu.pl)<br>A group of universities in Poland offering practical degree profiles, international opportunities, and collaboration with businesses for student success in the labor market | Higher Education | 🇵🇱 Warsaw | 485 |  |
| 28 | [mLeasing Sp. z o.o.](https://www.tamtam.ai/c/mleasing-sp-z-o-o) (mleasing.pl)<br>A leading leasing provider in Poland, offering tailored solutions for vehicles, equipment, fleet management, and property financing, with a focus on innovation and customer satisfaction | Financial Services | 🇵🇱 Warsaw | 470 |  |
| 29 | [Emil Frey Polska Sp. z o.o.](https://www.tamtam.ai/c/emil-frey-polska-sp-z-o-o) (emilfrey.pl)<br>A group of companies in Poland offering authorized dealership and repair services for various car brands, including BMW, Mercedes-Benz, Peugeot, Skoda, and Volkswagen | Retail Motor Vehicles | 🇵🇱 Warsaw | 467 | 2004 |
| 30 | [Polskie Porty Lotnicze S.A.](https://www.tamtam.ai/c/polskie-porty-lotnicze-s-a) (polish-airports.com)<br>Leading aviation infrastructure player in Poland, operating key national airports, including the largest airport in the country and one of the biggest in Central and Eastern Europe | Airlines and Aviation | 🇵🇱 Warsaw | 432 | 1934 |
| 31 | [Dr Irena Eris S.A.](https://www.tamtam.ai/c/dr-irena-eris-s-a) (drirenaeris.com)<br>A brand focused on holistic beauty, offering high-quality cosmetics, tailored skincare, and luxurious spa hotels for women to maintain their attractiveness and well-being | Personal Care Product Manufacturing | 🇵🇱 Piaseczno | 429 | 1983 |
| 32 | [ERBUD GROUP](https://www.tamtam.ai/c/erbud-group) (erbud.pl)<br>A leading construction group in Poland and Germany, with over 30 years of experience, 3000 employees, multiple branches, and international projects Active in sports and charity initiatives | Construction | 🇵🇱 Warsaw | 424 |  |
| 33 | [CI Games](https://www.tamtam.ai/c/ci-games) (cigames.com)<br>A global interactive entertainment publisher and developer with headquarters in Warsaw and operations in North and South America Specializing in popular game franchises | Computer Games | 🇵🇱 Warsaw | 413 | 2002 |
| 34 | [Generali Poland](https://www.tamtam.ai/c/generali-poland) (kariera.generali.pl)<br>A global insurance and asset management group operating in 50 countries, providing comprehensive protection through various insurance products and investment solutions | Insurance | 🇵🇱 Warsaw | 407 | 1831 |
| 35 | [Fresenius Kabi Polska](https://www.tamtam.ai/c/fresenius-kabi-polska) (fresenius-kabi.com)<br>This organization in Poland provides medical nutrition, infusion fluids, intravenous drugs, medical devices, and pharmaceuticals, supporting patients at home and in hospitals | Pharmaceutical Manufacturing | 🇵🇱 Warsaw | 403 | 1999 |
| 36 | [Trakcja](https://www.tamtam.ai/c/trakcja) (grupatrakcja.com)<br>The company is a major player in infrastructure construction and energy sector, undertaking innovative projects such as railways, highways, energy networks, and more | Construction | 🇵🇱 Warsaw | 384 | 1949 |
| 37 | [Anwim S.A.](https://www.tamtam.ai/c/anwim-s-a) (anwim.pl)<br>A leading fuel wholesaler, distributor, and importer in Poland, operating a growing chain of filling stations with cafe and convenience store offerings | Oil and Gas | 🇵🇱 Warsaw | 383 | 1992 |
| 38 | [WB ELECTRONICS S.A.](https://www.tamtam.ai/c/wb-electronics-s-a) (wbgroup.pl)<br>Specializing in military electronics and IT, this company leads Poland's defense sector into the 21st century with innovative technology solutions exported globally | Defense and Space Manufacturing | 🇵🇱 Ożarów Mazowiecki | 356 | 1997 |
| 39 | [GTV POLAND](https://www.tamtam.ai/c/gtv-poland) (gtv.com.pl)<br>A leading Polish company in furniture accessories, offering over 12,000 high-quality products for furniture, interiors, and lighting in 60+ markets worldwide | International Trade and Development | 🇵🇱 Pruszków | 329 | 1997 |
| 40 | [Dom Development](https://www.tamtam.ai/c/dom-development) (domd.pl)<br>A leading developer in the housing market, focused on fulfilling customers' dreams of owning a home with a track record of delivering thousands of apartments | Real Estate | 🇵🇱 Warsaw | 329 | 1996 |
| 41 | [SPIE Building Solutions (Poland)](https://www.tamtam.ai/c/spie-building-solutions-poland) (spie.com.pl)<br>Leading multi-technology service provider for buildings, offering facility management, fire protection, security solutions, HVAC, ICT services, e-vehicle charging, and sustainable development initiatives | Real Estate | 🇵🇱 Warsaw | 325 | 1993 |
| 42 | [Polenergia](https://www.tamtam.ai/c/polenergia) (polenergia.pl)<br>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 |
| 43 | [CIECH Group](https://www.tamtam.ai/c/ciech-group) (qemetica.com)<br>An international chemical group leading in sodium carbonate, evaporated salt, sodium silicates, plant protection products, and polyurethane foams production | Chemical Manufacturing | 🇵🇱 Warsaw | 314 | 1945 |
| 44 | [Atende](https://www.tamtam.ai/c/atende) (atende.pl)<br>A technology group offering IT projects, digital services, software solutions, and IP commercialization Services include network integration, cybersecurity, cloud migration, and blockchain digitalization | IT Services and IT Consulting | 🇵🇱 Warsaw | 310 | 1991 |
| 45 | [Agencja Rozwoju Przemysłu S.A.](https://www.tamtam.ai/c/agencja-rozwoju-przemyslu-s-a) (arp.pl)<br>Providing diverse professional experiences and development opportunities, with a focus on supporting businesses and increasing competitiveness in the Polish industry | Financial Services | 🇵🇱 Warsaw | 261 | 1990 |
| 46 | [GRUPA POLMLEK](https://www.tamtam.ai/c/grupa-polmlek) (polmlek.com)<br>A private company specializing in dairy products, juices, nectars, and non-carbonated beverages with a wide range of brands, exporting products internationally | Dairy Product Manufacturing | 🇵🇱 Warsaw | 259 | 1994 |
| 47 | [Van Pur S.A.](https://www.tamtam.ai/c/van-pur-s-a) (vanpur.com.pl)<br>Leading independent brewing company from Poland, with over 150 years of heritage, offering a wide range of beers and non-alcoholic beverages Exporting to 70 countries worldwide | Food and Beverage Services | 🇵🇱 Warsaw | 245 | 1989 |
| 48 | [KROSS S.A.](https://www.tamtam.ai/c/kross-s-a) (kross.pl)<br>A leading European bicycle manufacturer based in Poland, specializing in traditional and eBikes with advanced production facilities for carbon frames | Sporting Goods Manufacturing | 🇵🇱 Przasnysz | 237 | 1990 |
| 49 | [Remondis Polska](https://www.tamtam.ai/c/remondis-polska) (remondis-polska.pl)<br>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 |
| 50 | [MAK Ubezpieczenia](https://www.tamtam.ai/c/mak-ubezpieczenia) (makubezpieczenia.pl)<br>Provides comprehensive insurance brokerage services including audits, tailored offers, negotiations, legal support, and expert assistance for businesses. | Insurance | 🇵🇱 Warsaw | 236 | 1995 |

## 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 Nov 12, 2026.

## More company lists in Masovia

- [The largest companies in Masovia](https://www.tamtam.ai/l/largest-companies-masovia) (984)
- [Multinational companies in Masovia](https://www.tamtam.ai/l/multinational-companies-masovia) (249)
- [IT services companies in Masovia](https://www.tamtam.ai/l/it-services-companies-masovia) (109)
- [Critical infrastructure operators in Masovia](https://www.tamtam.ai/l/critical-infrastructure-operators-masovia) (95)
- [Financial services firms in Masovia](https://www.tamtam.ai/l/financial-services-firms-masovia) (93)
- [Software Development companies in Masovia](https://www.tamtam.ai/l/software-development-companies-masovia) (91)
- [IT Services and IT Consulting companies in Masovia](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-masovia) (88)
- [Companies with in-house R&D in Masovia](https://www.tamtam.ai/l/r-and-d-companies-masovia) (84)
- [Retail chains in Masovia](https://www.tamtam.ai/l/retail-chains-masovia) (78)
- [Manufacturers in Masovia](https://www.tamtam.ai/l/manufacturers-masovia) (77)
- [Professional services firms in Masovia](https://www.tamtam.ai/l/professional-services-firms-masovia) (76)
- [Companies with a mobile app in Masovia](https://www.tamtam.ai/l/companies-with-mobile-app-masovia) (71)
- [Public sector organisations in Masovia](https://www.tamtam.ai/l/public-sector-organisations-masovia) (68)
- [Financial Services companies in Masovia](https://www.tamtam.ai/l/financial-services-companies-masovia) (59)
- [SaaS companies in Masovia](https://www.tamtam.ai/l/saas-companies-masovia) (53)
- [Publicly traded companies in Masovia](https://www.tamtam.ai/l/publicly-traded-companies-masovia) (48)
- [Consumer goods companies in Masovia](https://www.tamtam.ai/l/consumer-goods-companies-masovia) (44)
- [Consulting firms in Masovia](https://www.tamtam.ai/l/consulting-firms-masovia) (43)
- [Education providers in Masovia](https://www.tamtam.ai/l/education-companies-masovia) (40)
- [Hardware manufacturers in Masovia](https://www.tamtam.ai/l/hardware-companies-masovia) (40)
- [Transportation, Logistics, Supply Chain and Storage companies in Masovia](https://www.tamtam.ai/l/transportation-logistics-supply-chain-and-storage-companies-masovia) (35)
- [E-commerce companies in Masovia](https://www.tamtam.ai/l/ecommerce-companies-masovia) (34)
- [Food and Beverage Manufacturing companies in Masovia](https://www.tamtam.ai/l/food-and-beverage-manufacturing-companies-masovia) (34)
- [Subscription businesses in Masovia](https://www.tamtam.ai/l/subscription-businesses-masovia) (34)

## The same list elsewhere in Poland

- [Corporate groups and holding companies in Poland](https://www.tamtam.ai/l/holding-companies-poland) (142)
- [Corporate groups and holding companies in Warsaw](https://www.tamtam.ai/l/holding-companies-warsaw) (49)

## The same list elsewhere

- [Corporate groups and holding companies in the world](https://www.tamtam.ai/l/holding-companies-in-the-world) (12,864)
- [Corporate groups and holding companies in Europe](https://www.tamtam.ai/l/holding-companies-in-europe) (4,396)

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Source: https://www.tamtam.ai/l/holding-companies-masovia