These are large multinational companies in Warsaw, primarily in IT services, consulting, and finance. Many are established players, with some founded in the late 20th century. The list includes Sii Poland, providing IT consulting and digital transformation, PwC Polska, offering legal, tax, and business solutions, Santander Bank Polska, an innovative financial platform, and PLAY, a telecommunications company.
There is a notable concentration of IT services and consulting firms, reflecting Warsaw's role as a hub for technology and business support. Companies like Andersen Lab, Innowise, and Accenture Poland highlight this trend, focusing on custom software development, AI, and digitalization.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Sii Polandsii.pl
Provides technology consulting, AI-driven digital transformation, engineering, and business services, supporting clients in testing, software development, infrastructure management, and system integration. |
6,243 | |||
| 2 |
PwC Polskapwc.pl
Providing legal, tax, business, and audit solutions to diverse clients across sectors, supporting both large corporations and local enterprises. |
4,370 | |||
| 3 |
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 |
4,285 | |||
| 4 | 3,945 | ||||
| 5 |
Andersen Labandersenlab.com
Providing end-to-end IT services, custom software development, API integration, system architecture, and legacy modernization, building tailored, scalable, and secure digital products with AI, ML, Data Science. |
3,703 | |||
| 6 |
Budimexbudimex.pl
With over 50 years of experience, we specialize in infrastructure projects in Poland, employing 7,000 people and completing 300 contracts annually |
3,552 | |||
| 7 |
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. |
3,198 | |||
| 8 |
LOT Polish Airlineslot.com
National airline offering safe, comfortable flights with modern fleet, efficient connections, and strong presence in Central Europe. |
2,764 | |||
| 9 |
No Limitnolimit.pl
A logistics operator offering comprehensive transport, freight forwarding, and logistics services in Poland and abroad, emphasizing quality, timeliness, and sustainability |
2,526 | |||
| 10 |
TVN Warner Bros. Discoverywbdpoland.pl
Leading TV broadcaster in Poland with 24 channels offering factual, lifestyle, news, sports, and film content, along with digital OTT services |
2,302 | |||
| 11 |
Innowiseinnowise.com
International software development company delivering advanced digital solutions using AI, Big Data, IoT, Blockchain, and AR/VR technologies worldwide. |
2,118 | |||
| 12 | 2,044 | ||||
| 13 |
KPMG Polandkpmg.com
Global organization providing professional services in audit, tax, finance, legal, and consulting Improving business results, managing risks, creating strategies, and adding value |
1,989 | |||
| 14 |
CD PROJEKT REDcdprojektred.com
Global team of game developers known for The Witcher series & Cyberpunk 2077, focusing on mature storytelling & opening new studio |
1,923 | |||
| 15 |
Accenture Polandaccenture.com
A global company providing professional services to leading businesses, governments, and NGOs, focusing on digitalization, operational optimization, profitability, and social impact |
1,909 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 |
Frontexfrontex.europa.eu
Supports EU countries with external border management and fights cross-border crime by coordinating border guard deployments and sharing expertise. |
1,905 | |||
| 17 |
BSH Sprzęt Gospodarstwa Domowego Polskabsh-group.com
A leading manufacturer of household appliances with multiple factories in Poland, offering a portfolio of well-known brands in the market |
1,805 | |||
| 18 |
XTB online investingxtb.com
Global fintech platform offering online investing, trading over 6,200 instruments, educational resources, and customer support in 18 languages, with regulatory oversight |
1,687 | |||
| 19 |
Adamed Pharmaadamed.com
A pharmaceutical and biotechnological company with over 20 years of research and development experience, selling 500 products in 78 countries worldwide |
1,609 | |||
| 20 |
Fujitsu Polandfujitsu.com
Provider of IT infrastructure solutions, products, and services for clients ranging from large enterprises to individual customers, specializing in dynamic infrastructure concepts |
1,497 | |||
| 21 |
RTB Housertbhouse.com
Next-generation DSP using proprietary Deep Learning AI algorithms to maximize conversion, acquire customers, and drive long-term demand globally. |
1,437 | |||
| 22 |
OVB Allfinanz Polska Spółka Finansowa Sp. z o.o.ovb.pl
Providing secure financial advice by analyzing individuals' goals and situations to offer tailored financial solutions and protection from biased service providers |
1,423 | |||
| 23 |
Szkoła Główna Gospodarstwa Wiejskiego w Warszawiesggw.edu.pl
A university in Warsaw offering 40 full-time study programs, with 11 available in English, and 24 part-time study programs Provides modern campus facilities and student organizations |
1,403 | |||
| 24 |
Billenniumbillennium.com
Global technology consulting and outsourcing company offering IT solutions, staff augmentation, managed services, and technology solutions with a focus on AI, cloud, and software development |
1,381 | |||
| 25 |
Lingarolingarogroup.com
Empowers global enterprises to achieve measurable outcomes with data and AI, providing end-to-end solutions from strategy to scalable platforms for actionable insights and automation. |
1,361 | |||
| 26 |
Kozminski Universitylinktr.ee
A private university in Poland offering Bachelor, Master's, MBA, and PhD programs in English, with top rankings and accreditations |
1,339 | |||
| 27 |
ROHLIG SUUS Logisticssuus.com
Comprehensive logistics services including global sea, air, rail freight, groupage, full-truckload transport, warehousing, and contract logistics solutions. |
1,298 | |||
| 28 |
Ringier Axel Springer Polskaringieraxelspringer.pl
Leading Polish media and technology company with diverse digital and print publications, e-commerce, classifieds, mobile apps, and integrated advertising services. |
1,220 | |||
| 29 |
Grupa Wirtualna Polskaholding.wp.pl
Leading digital media and technology company focused on transforming internet experiences through innovative content, services, and user engagement strategies. |
1,135 | |||
| 30 | 1,097 | ||||
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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 Nov 11, 2026.
More company lists in Warsaw
- The largest companies in Warsaw 872
- IT services companies in Warsaw 108
- Critical infrastructure operators in Warsaw 92
- Software Development companies in Warsaw 88
- Financial services firms in Warsaw 87
- IT Services and IT Consulting companies in Warsaw 84
- Professional services firms in Warsaw 76
- Companies with a mobile app in Warsaw 72
- Companies with in-house R&D in Warsaw 69
- Retail chains in Warsaw 67
- Public sector organisations in Warsaw 61
- Financial Services companies in Warsaw 59
- Manufacturers in Warsaw 53
- Corporate groups and holding companies in Warsaw 49
- SaaS companies in Warsaw 49
- Consulting firms in Warsaw 43
- Publicly traded companies in Warsaw 39
- Education providers in Warsaw 38
- Subscription businesses in Warsaw 33
- Hardware manufacturers in Warsaw 31
- AI companies in Warsaw 29
- Transportation, Logistics, Supply Chain and Storage companies in Warsaw 29
- Consumer goods companies in Warsaw 27
- E-commerce companies in Warsaw 26
The same list elsewhere in Poland
- Multinational companies in Poland 585
- Multinational companies in Masovia 249
- Multinational companies in Lesser Poland 54
- Multinational companies in Lower Silesia 54
- Multinational companies in Greater Poland 46
- Multinational companies in Silesia 39
- Multinational companies in Pomerania 33
- Multinational companies in Wrocław 45
- Multinational companies in Kraków 43
- Multinational companies in Poznań 32