The largest companies in Poznań include a mix of established firms and younger enterprises, primarily in retail, technology, and financial services. Notable examples are Żabka Polska, a convenience store chain; Allegro, an online marketplace; and NETWORK-SECURITY-SOLUTIONS, specializing in network security. The list also features significant educational institutions like Adam Mickiewicz University.
A clear pattern among these companies is their strong local presence, with all listed headquarters located in Poznań. This indicates a concentration of major employers and economic activity within the city, spanning various sectors from manufacturing with Volkswagen Poznan to professional services like Phinance S.A.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
NETWORK-SECURITY-SOLUTIONSn-security.com
Specializing in managing Linux/Unix servers and large network environments with a focus on customized solutions, quality, and technological innovation |
10,400 | |||
| 2 |
Żabka Polskazabkagroup.com
A leading convenience store chain in Central-Eastern Europe with over 10,000 stores offering competitive prices, quality products, and a wide range of additional services |
9,582 | |||
| 3 | 5,957 | ||||
| 4 |
Allegrojobs.allegro.eu
Online marketplace connecting millions of Polish customers with over 135,000 merchants offering diverse products and fast, convenient delivery services. |
5,350 | |||
| 5 |
Uniwersytet im. Adama Mickiewicza w Poznaniuamu.edu.pl
A leading academic institution in Poland known for its research, education, social responsibility, and commitment to diversity and freedom |
1,608 | |||
| 6 |
KAJK.PLtransportosobowy.com.pl
The company specializes in providing consulting services for ABAP and development in languages such as C#, C++, Delphi, and Java |
1,598 | |||
| 7 |
Volkswagen Poznanvolkswagen-poznan.pl
A modern factory producing utility vehicles and components since 1993, specializing in VW models like Caddy, Transporter, and Crafter, as well as supplying parts for Volkswagen brands |
1,439 | |||
| 8 |
Allegroallegro.pl
An online platform offering a wide range of products for sale with competitive prices, buyer protection, and a large team of experts |
1,411 | |||
| 9 |
Phinance S.A.phinance.pl
Leading financial advisory firm in Poland offering comprehensive services such as investments, insurance, mortgages, and financial solutions tailored to clients' evolving needs |
1,282 | |||
| 10 |
Content Writercontentwriter.co
Professional copywriting agency offering writing services in 7 languages, including SEO-optimized articles, website content, product descriptions, and more Fast, high-quality work guaranteed |
1,062 | |||
| 11 |
Poznan University of Medical Sciencesump.edu.pl
A leading medical university in Poland offering diverse specialties in English, with strong emphasis on research, clinical teaching, and international collaborations |
1,053 | |||
| 12 |
Poznan University of Technologyput.poznan.pl
A well-known technical university in Europe offering high-quality education and world-class scientific research and development work |
925 | |||
| 13 |
Grant Thornton Polandgrantthornton.pl
A leading audit and advisory organization with over 53,000 employees worldwide, providing services in audit, advisory, and outsourcing to clients in 135 countries Operating in Poland since 1993 |
818 | |||
| 14 |
Transgourmettransgourmet.pl
Wholesale network offering extensive food products and professional delivery services to businesses and gastronomy clients across Poland. |
796 | |||
| 15 |
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 |
789 | |||
| 16 |
TEB Edukacja Sp. z o. o.teb.pl
A nationwide network of private vocational schools offering a variety of educational programs, including medical and technical training, courses, and adult high school programs |
778 | |||
| 17 |
#NIERUCHOMOŚCIhasztagnieruchomosci.pl
A team of passionate professionals providing comprehensive real estate intermediary services, ensuring time and cost savings with transaction security and customer satisfaction |
764 | |||
| 18 |
Pekabexpekabex.com
A leading prefabricated industry in Poland, offering design, manufacturing, and assembly of structures for various construction projects with a focus on innovation and sustainability |
710 | |||
| 19 |
Poznan University of Economics And Businesspoznan.pl
Educating future leaders in economics, management, finance, international business, and commodity science through comprehensive programs and impactful research since 1926. |
672 | |||
| 20 |
Uniwersytet WSB Merito Poznańmerito.pl
A private university in Poland offering a wide range of undergraduate, postgraduate, MBA, and doctoral programs, known for its close business partnerships and high-quality education |
645 | |||
| 21 |
Dealz Polanddealz.pl
An international retail network offering a wide range of products, including international sweets, household cleaners, and beauty products from top brands at competitive prices |
628 | |||
| 22 |
Komputronik S.A.komputronik.pl
A leading telecommunication and IT company in Poland, known for stable growth, quality service, and high standards for employees |
588 | |||
| 23 |
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 |
582 | |||
| 24 |
Poznan University of Technologyput.poznan.pl
An educational institution in Poznan with roots dating back to 1919, offering courses in mechanical engineering, electrical engineering, and machine construction |
578 | |||
| 25 |
SGB-Bank S.A.sgb.pl
SGB-Bank SA is a place for energetic, optimistic, and tech-savvy specialists who work together to achieve goals and have fun They constantly seek new solutions |
533 | |||
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. | |||||
| 26 |
ICGpremium.pl
Consulting company specializing in implementing, developing, maintaining, and outsourcing SAP systems Authorized Gold partner of SAP Polska and one of the largest SAP consulting companies in Poland |
511 | |||
| 27 | 484 | ||||
| 28 |
Beiersdorf Polskaniveapolska.pl
A leading skin care company with top brands like NIVEA & Eucerin, focused on providing excellent products and a supportive work environment |
476 | |||
| 29 |
Netgurunetguru.com
A digital acceleration consultancy offering services in product development, software solutions, and product design to a wide range of companies globally |
449 | |||
| 30 |
Volkswagen Group Polskavw-group.pl
Importer, wholesaler, and distributor of six automotive brands in Poland, supporting sales, spare parts, and dealership networks. |
444 | |||
| 31 |
Uniwersytecki Szpital Kliniczny w Poznaniuusk.poznan.pl
A hospital with over 200 years of experience, dedicated to serving patients, education, and advancement in medical science through top-class specialists |
440 | |||
| 32 |
PSI Software – Polska & CEEpsi.pl
A leading provider of computer systems for production companies and pipes&wires sector, offering products in the Polish market and contributing to product development |
439 | |||
| 33 |
Carlsberg Shared Servicescarlsberggroup.com
Global business center within Carlsberg Group providing accounting, planning, financial controlling, logistics, and master data services with a diverse team of specialists |
432 | |||
| 34 |
Family Shopfamily-shop.pl
Start your own business with Family Shop's support, open a franchise store for new and used clothing in your town High-quality goods sourced internationally Partner training provided |
424 | |||
| 35 |
Collegium Da Vincicdv.pl
Leading higher education institution ensuring comprehensive professional start for students through cooperation with the business environment. |
415 | |||
| 36 |
Volkswagen Group Services sp. z o.o.volkswagen-groupservices.pl
We provide modern shared services and operational support to European companies within Volkswagen Group, with a focus on accounting and expanding service offerings |
410 | |||
| 37 | 409 | ||||
| 38 |
STX Nextstxnext.com
Specialized AI-powered software development with expertise in Python, data engineering, machine learning, cloud services, serving global businesses across sectors. |
397 | |||
| 39 |
YES Bizuteriayes.pl
Bringing a new campaign to create a better world for women in partnership with Fundacja Wisławy Szymborskiej Visit the link for more information |
385 | |||
| 40 | 357 | ||||
| 41 |
DomDatadomdata.pl
A Polish IT company with 15 years of experience, offering process platform Ferryt BPM, analytical platform InForum, and comprehensive solutions for banking sector |
353 | |||
| 42 |
Poznańskie Centrum Superkomputerowo-Sieciowe
Providing world-class e-infrastructure for science, developing ICT-based innovations for industry, and promoting social innovation to combat digital exclusion. |
339 | |||
| 43 |
Profitroomprofitroom.com
Innovative technology for hotels to drive revenue and deliver exceptional guest experiences, supported by a team of experts in 7 languages |
332 | |||
| 44 |
PMTpmt.com.pl
Specializing in trade and logistics, we provide full sales support with custom software tools, helping clients increase profits for over 20 years |
319 | |||
| 45 |
Łukasiewicz – Poznański Instytut Technologicznypit.lukasiewicz.gov.pl
Specializing in logistics and digital economy, the organization conducts research, development, and advisory services to optimize business processes and enhance public services |
315 | |||
| 46 |
MIKRONIKA Sp. z o.o.mikronika.pl
Leading supplier of industrial automation system solutions and software producer, offering tailored modular solutions, with own equipment base and production facilities |
310 | |||
| 47 |
Aquanet SAaquanet.pl
A leading provider of water supply and sewage services in Poland, focusing on improving quality of life through responsible and professional management of water resources |
284 | |||
| 48 |
Forcom Sp. z o.o.forcom.eu
A provider of complete IT solutions for large retail chains, offering high-quality software, back office systems, and EFT transaction handling services |
250 | |||
| 49 |
RSM Polandrsmpoland.pl
Financial audit, tax, and consulting services, including accounting, HR, payroll, reporting outsourcing, corporate services, transaction advisory, and IT consulting. |
245 | |||
| 50 |
Forum Media Polska Sp. z o.o.forum-media.pl
Publisher of 50 specialized magazines, organizing conferences, offering online courses, hosting events, and providing e-learning platforms and educational materials |
219 | |||
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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 Poznań
The same list elsewhere in Poland
- The largest companies in Poland 2,488
- The largest companies in Masovia 984
- The largest companies in Lesser Poland 232
- The largest companies in Lower Silesia 194
- The largest companies in Silesia 190
- The largest companies in Greater Poland 187
- The largest companies in Pomerania 158
- The largest companies in Łódź Voivodeship 73
- The largest companies in Kuyavia-Pomerania 53
- The largest companies in Warsaw 872
- The largest companies in Kraków 181
- The largest companies in Wrocław 166
- The largest companies in Gdańsk 80
- The largest companies in Katowice 59
- The largest companies in Łódź 53
- The largest companies in Gdynia 41
- The largest companies in Gliwice 29
- The largest companies in Lublin 28
- The largest companies in Rzeszów 26
- The largest companies in Szczecin 26