# List of professional services firms in Poland

Tamtam tracks 149 professional services firms headquartered in Poland. This list ranks the 50 largest by number of employees on LinkedIn, led by Sii Poland, Comarch and PwC Polska. Their median headcount is 559. Half of them were founded in 2003 or later. The most common headquarters are Warsaw (29), Wrocław (7) and Gliwice (3).

These Polish professional services companies are mostly large firms, with a strong emphasis on IT services and consulting. Sii Poland, with 6243 employees, offers technology consulting and digital transformation. Comarch provides IT business solutions globally, while PwC Polska and KPMG Poland specialize in business consulting, audit, and tax services. Accenture Poland focuses on digitalization and operational optimization.

A significant concentration of these companies, including Billennium and Lingaro, are headquartered in Warsaw, indicating a central hub for professional services in Poland. AMG Biuro Rachunkowe provides financial advice and accounting solutions. Spyrosoft and WASKO offer software development and IT solutions across various industries.

🇵🇱 Poland · 50 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Sii Poland](https://www.tamtam.ai/c/sii-poland) (sii.pl)<br>Provides technology consulting, AI-driven digital transformation, engineering, and business services, supporting clients in testing, software development, infrastructure management, and system integration. | IT Services and IT Consulting | 🇵🇱 Warsaw | 6,243 | 2006 |
| 2 | [Comarch](https://www.tamtam.ai/c/comarch) (kariera.comarch.pl)<br>Global IT business solution provider optimizing operational and business processes, with over 7000 experienced professionals and software implementation in 40,000+ companies worldwide | Software Development | 🇵🇱 Kraków | 5,004 | 1993 |
| 3 | [PwC Polska](https://www.tamtam.ai/c/pwc-polska) (pwc.pl)<br>Providing legal, tax, business, and audit solutions to diverse clients across sectors, supporting both large corporations and local enterprises. | Business Consulting and Services | 🇵🇱 Warsaw | 4,370 |  |
| 4 | [KPMG Poland](https://www.tamtam.ai/c/kpmg-poland) (kpmg.com)<br>Global organization providing professional services in audit, tax, finance, legal, and consulting Improving business results, managing risks, creating strategies, and adding value | Business Consulting and Services | 🇵🇱 Warsaw | 1,989 | 1990 |
| 5 | [Accenture Poland](https://www.tamtam.ai/c/accenture-poland) (accenture.com)<br>A global company providing professional services to leading businesses, governments, and NGOs, focusing on digitalization, operational optimization, profitability, and social impact | IT Services and IT Consulting | 🇵🇱 Warsaw | 1,909 | 1993 |
| 6 | [Billennium](https://www.tamtam.ai/c/billennium) (billennium.com)<br>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 | IT Services and IT Consulting | 🇵🇱 Warsaw | 1,381 | 2003 |
| 7 | [Lingaro](https://www.tamtam.ai/c/lingaro) (lingarogroup.com)<br>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. | IT Services and IT Consulting | 🇵🇱 Warsaw | 1,361 | 2008 |
| 8 | [AMG Biuro Rachunkowe](https://www.tamtam.ai/c/amg-biuro-rachunkowe) (amgbiuro.pl)<br>A family business with extensive experience since 1994, offering financial advice, HR and payroll management, and accounting solutions for a range of clients | Accounting | 🇵🇱 Warsaw | 1,330 | 1994 |
| 9 | [Spyrosoft](https://www.tamtam.ai/c/spyrosoft) (spyro-soft.com)<br>A global group providing consulting and software development services across various industries, specializing in digital transformation and offering a wide range of technological solutions | IT Services and IT Consulting | 🇵🇱 Wrocław | 1,156 | 2016 |
| 10 | [WASKO](https://www.tamtam.ai/c/wasko) (wasko.pl)<br>Established in 1988, we specialize in implementing modern technologies such as IT solutions, industrial automation, telecommunications, and electronics on local and international markets | IT Services and IT Consulting | 🇵🇱 Gliwice | 1,120 | 1988 |
| 11 | [Deloitte Poland](https://www.tamtam.ai/c/deloitte-poland) (deloitte.com)<br>Deloitte provides professional advisory services in consulting, audit, tax, legal, risk management, financial advisory, forensic, AML, and compliance, with a global team of specialists | Management Consulting | 🇵🇱 Warsaw | 1,086 |  |
| 12 | [Exact x Forestall Group](https://www.tamtam.ai/c/exact-x-forestall-group) (exactforestall.com)<br>Global leader in quality control solutions for automotive industry suppliers and manufacturers, also serving electronics, appliances, and cosmetics industries Operations in 13 countries | Motor Vehicle Manufacturing | 🇵🇱 Częstochowa | 989 | 2004 |
| 13 | [Sollers Consulting](https://www.tamtam.ai/c/sollers-consulting) (sollers.eu)<br>Support financial institutions with business transformations, digital capabilities, and software integration using low-code platforms and global technology partnerships. | IT Services and IT Consulting | 🇵🇱 Warsaw | 940 | 2000 |
| 14 | [Grant Thornton Poland](https://www.tamtam.ai/c/grant-thornton-poland) (grantthornton.pl)<br>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 | Financial Services | 🇵🇱 Poznań | 818 | 1993 |
| 15 | [PGS Software S.A.](https://www.tamtam.ai/c/pgs-software-s-a) (pgs-soft.com)<br>Innovative team of experts providing agile, reliable software solutions from design to development, specializing in digital innovation and fostering long-lasting relationships | IT Services and IT Consulting | 🇵🇱 Wrocław | 808 | 2005 |
| 16 | [CAG](https://www.tamtam.ai/c/cag) (cag.com.pl)<br>Independent investment banking partnership providing high-quality transaction advisory services in Poland and other CEE countries, with €12 billion in completed deals | Investment Banking | 🇵🇱 Warsaw | 779 | 1999 |
| 17 | [BlueSoft](https://www.tamtam.ai/c/bluesoft) (bluesoft.com)<br>Providing comprehensive IT services focusing on business value, quality delivery, team collaboration, and vendor independence since 2002. | Software Development | 🇵🇱 Warsaw | 728 | 2002 |
| 18 | [Future Processing](https://www.tamtam.ai/c/future-processing) (future-processing.com)<br>Advises and delivers tech strategy, transforming business ambitions into measurable outcomes for clients in various regulated industries. | IT Services and IT Consulting | 🇵🇱 Gliwice | 703 | 2000 |
| 19 | [Britenet](https://www.tamtam.ai/c/britenet) (britenet.eu)<br>A technology firm with over 17 years of outsourcing experience, specializing in software development, cybersecurity, and IT services for various industries worldwide | IT Services and IT Consulting | 🇵🇱 Warsaw | 700 | 2006 |
| 20 | [Lionbridge Poland](https://www.tamtam.ai/c/lionbridge-poland) (lionbridge.com)<br>A leading provider of translation, digital marketing, content management, and application testing solutions, specializing in global brand consistency and local market adaptation | Translation and Localization | 🇵🇱 Warsaw | 669 | 1990 |
| 21 | [Euvic](https://www.tamtam.ai/c/euvic) (euvic.com)<br>Poland's leading IT service provider. Offers access to over 1,000 skilled programmers. Helps businesses become cost-efficient and agile through outsourced IT projects. | IT Services and IT Consulting | 🇵🇱 Gliwice | 661 | 2005 |
| 22 | [EWL Group](https://www.tamtam.ai/c/ewl-group) (ewl.com.pl)<br>Leading Polish recruitment agency offering comprehensive services for hiring workers from Eastern Europe and Asia, as well as professional employment solutions for various sectors | Staffing and Recruiting | 🇵🇱 Warsaw | 632 | 2007 |
| 23 | [Connectis_](https://www.tamtam.ai/c/connectis) (connectis.pl)<br>We develop developers and prepare them for the future, providing dedicated IT teams and specialists to clients efficiently and remotely | IT Services and IT Consulting | 🇵🇱 Warsaw | 617 | 2003 |
| 24 | [Urząd Dozoru Technicznego](https://www.tamtam.ai/c/urzad-dozoru-technicznego) (udt.gov.pl)<br>A Polish institution ensuring safe operation of technical devices through technical supervision, certification, training, and research laboratory services with specialized staff | Public Safety | 🇵🇱 Warsaw | 603 | 1911 |
| 25 | [Randstad Polska](https://www.tamtam.ai/c/randstad-polska) (randstad.pl)<br>A global leader in HR consulting and temporary staffing, supporting individuals in finding the right jobs and businesses in hiring top talent, while staying up-to-date with market trends | Staffing and Recruiting | 🇵🇱 Warsaw | 559 | 1994 |
| 26 | [MML](https://www.tamtam.ai/c/mml) (mml.org.pl)<br>The company specializes in acquiring approvals from property owners for linear investments and infrastructure projects, providing comprehensive support throughout the process | Telecommunications | 🇵🇱 Bydgoszcz | 545 | 2021 |
| 27 | [ALTEN Polska](https://www.tamtam.ai/c/alten-polska) (altenpolska.pl)<br>Leader in Engineering and IT services supporting customer's development strategies in innovation, R&D, and technological information systems across various industries globally | IT Services and IT Consulting | 🇵🇱 Kraków | 544 | 2016 |
| 28 | [Growe](https://www.tamtam.ai/c/growe) (growe.com)<br>In the iGaming and Entertainment industries, we develop cutting-edge technology platforms and payment solutions to propel asset growth and unlock opportunities worldwide | Strategic Management Services | 🇵🇱 Warsaw | 519 | 2019 |
| 29 | [Transition Technologies MS](https://www.tamtam.ai/c/transition-technologies-ms) (ttms.com)<br>Global IT services provider offering end-to-end solutions with expertise in niche technologies, staffed by over 800 specialists across multiple continents | IT Services and IT Consulting | 🇵🇱 Warsaw | 515 | 2015 |
| 30 | [KCR](https://www.tamtam.ai/c/kcr) (iconplc.com)<br>A clinical development solutions provider specializing in trial execution, consulting, and placement for biotechnology and pharmaceutical organizations worldwide | Pharmaceutical Manufacturing | 🇵🇱 Wola | 493 | 1997 |
| 31 | [EY Polska](https://www.tamtam.ai/c/ey-polska) (ey.com)<br>World leader in professional services offering audit, tax, advisory, and strategic consulting Committed to delivering high-quality services and creating a better working world | Accounting | 🇵🇱 Warsaw | 490 |  |
| 32 | [Xebia Poland](https://www.tamtam.ai/c/xebia-poland) (xebia.com)<br>Global network of technology enthusiasts providing tailored solutions, focusing on development and knowledge sharing with over 20 years of experience | IT Services and IT Consulting | 🇵🇱 Wrocław | 485 |  |
| 33 | [Biuro Projektowe](https://www.tamtam.ai/c/biuro-projektowe) (konopski.pl)<br>A Poland-based design office providing architectural and engineering services | Mechanical Or Industrial Engineering | 🇵🇱 Krotoszyn | 482 |  |
| 34 | [HRK S.A.](https://www.tamtam.ai/c/hrk-s-a) (hrk.pl)<br>Specializing in HR consulting, recruitment, assessment centers, and payroll services with expertise in various industries, offering global executive search solutions | Staffing and Recruiting | 🇵🇱 Warsaw | 455 | 2000 |
| 35 | [SoftTeco](https://www.tamtam.ai/c/softteco) (softteco.com)<br>A software development company offering custom services globally, with a highly professional team completing over 300 projects across various industries | IT Services and IT Consulting | 🇵🇱 Warsaw | 454 | 2008 |
| 36 | [CRIDO](https://www.tamtam.ai/c/crido) (crido.pl)<br>A comprehensive business support provider specializing in taxes, law, innovation, investments, advisory, digital solutions, financial modeling, and M&A services | Business Consulting and Services | 🇵🇱 Warsaw | 450 | 2005 |
| 37 | [Netguru](https://www.tamtam.ai/c/netguru) (netguru.com)<br>A digital acceleration consultancy offering services in product development, software solutions, and product design to a wide range of companies globally | IT Services and IT Consulting | 🇵🇱 Poznań | 449 | 2008 |
| 38 | [Craftware](https://www.tamtam.ai/c/craftware) (craftware.com)<br>The company provides digital transformation services, technology consulting, body and team leasing in IT, specializing in Salesforce, UiPath, and Veeva solutions | IT Services and IT Consulting | 🇵🇱 Ochota | 444 | 2009 |
| 39 | [MS Services](https://www.tamtam.ai/c/ms-services) (msservices.pl)<br>Leading provider of outsourcing services in Poland specializing in efficient solutions supporting sales projects, with a focus on sales outsourcing, merchandising, and sales promotion | Outsourcing and Offshoring Consulting | 🇵🇱 Warsaw | 435 | 2003 |
| 40 | [Scalo](https://www.tamtam.ai/c/scalo) (scalosoft.com)<br>This company uses software to facilitate business growth, operations scaling, and increased productivity for organizations | IT Services and IT Consulting | 🇵🇱 Wrocław | 412 | 2007 |
| 41 | [C&F](https://www.tamtam.ai/c/c-and-f) (candf.com)<br>Global team specializing in data management, analytics, digital transformation, and GRC Developing low-code IT solutions while supporting community initiatives | IT Services and IT Consulting | 🇵🇱 Warsaw | 409 | 2001 |
| 42 | [CBRE Poland](https://www.tamtam.ai/c/cbre-poland) (cbre.pl)<br>A global leader in commercial real estate advisory and investment services, offering a wide range of integrated services to diverse clients worldwide | Real Estate | 🇵🇱 Warsaw | 392 | 2000 |
| 43 | [BPX](https://www.tamtam.ai/c/bpx) (bpxglobal.com)<br>Global consulting firm specializing in business transformation through ERP, BI, and IT Service Management solutions, with established partnerships and certified expertise Offering career opportunities for problem solvers | IT Services and IT Consulting | 🇵🇱 Wrocław | 389 | 2006 |
| 44 | [Gi Group Polska](https://www.tamtam.ai/c/gi-group-polska) (gigroup.com)<br>Poland’s largest HR provider offering innovative workforce solutions such as permanent placement, temporary staffing, outplacement, and outsourcing services since 1999 | Human Resources Services | 🇵🇱 Wrocław | 386 | 1999 |
| 45 | [Modsen](https://www.tamtam.ai/c/modsen) (modsen-software.com)<br>Global software development company offering services such as custom software development, team augmentation, business analysis, UI/UX design, and quality assurance testing Specializing in various industries | IT Services and IT Consulting | 🇵🇱 Warsaw | 379 | 2020 |
| 46 | [Software Mansion](https://www.tamtam.ai/c/software-mansion) (swmansion.com)<br>A team of engineers in Kraków, Poland, with expertise in complex projects for clients in NY and SF Emphasizing agile methodologies, diverse technologies, and open source contributions | Software Development | 🇵🇱 Kraków | 377 | 2012 |
| 47 | [HICRON](https://www.tamtam.ai/c/hicron) (hicron.com)<br>Company implements, integrates, and services SAP Solutions, delivering world-class code in DevOps, Cloud Services, Digital Product Design, and Software Development globally. Advises and offers tailored software. | IT Services and IT Consulting | 🇵🇱 Wrocław | 369 | 2006 |
| 48 | [Geofizyka Torun S.A.](https://www.tamtam.ai/c/geofizyka-torun-s-a) (geofizyka.pl)<br>The company provides innovative geophysical, geological, and geotechnical solutions for the energy sector globally, with a focus on exploration and production intensification | Oil and Gas | 🇵🇱 Toruń | 368 | 1966 |
| 49 | [Fundacja Rozwoju Przedsiębiorczości Twój StartUP](https://www.tamtam.ai/c/fundacja-rozwoju-przedsiebiorczosci-twoj-startup) (twojstartup.pl)<br>A team of professionals helps individuals start successful businesses by providing support, low-cost implementation, and guidance towards success | Strategic Management Services | 🇵🇱 Warsaw | 358 | 2012 |
| 50 | [RÖDL Poland](https://www.tamtam.ai/c/rodl-poland) (roedl.pl)<br>A global provider of legal, tax, management and IT consulting services with offices in 50 countries and over 5,800 trusted professionals | Financial Services | 🇵🇱 Warsaw | 358 | 1992 |

## 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 Poland

- [The largest companies in Poland](https://www.tamtam.ai/l/largest-companies-poland) (2,488)
- [Multinational companies in Poland](https://www.tamtam.ai/l/multinational-companies-poland) (585)
- [IT services companies in Poland](https://www.tamtam.ai/l/it-services-companies-poland) (312)
- [Software Development companies in Poland](https://www.tamtam.ai/l/software-development-companies-poland) (301)
- [Companies with in-house R&D in Poland](https://www.tamtam.ai/l/r-and-d-companies-poland) (290)
- [Manufacturers in Poland](https://www.tamtam.ai/l/manufacturers-poland) (268)
- [IT Services and IT Consulting companies in Poland](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-poland) (213)
- [Retail chains in Poland](https://www.tamtam.ai/l/retail-chains-poland) (186)
- [Companies with a mobile app in Poland](https://www.tamtam.ai/l/companies-with-mobile-app-poland) (156)
- [Critical infrastructure operators in Poland](https://www.tamtam.ai/l/critical-infrastructure-operators-poland) (147)
- [Public sector organisations in Poland](https://www.tamtam.ai/l/public-sector-organisations-poland) (146)
- [Financial services firms in Poland](https://www.tamtam.ai/l/financial-services-firms-poland) (144)
- [Corporate groups and holding companies in Poland](https://www.tamtam.ai/l/holding-companies-poland) (142)
- [SaaS companies in Poland](https://www.tamtam.ai/l/saas-companies-poland) (142)
- [Transportation, Logistics, Supply Chain and Storage companies in Poland](https://www.tamtam.ai/l/transportation-logistics-supply-chain-and-storage-companies-poland) (131)
- [Education providers in Poland](https://www.tamtam.ai/l/education-companies-poland) (127)
- [Hardware manufacturers in Poland](https://www.tamtam.ai/l/hardware-companies-poland) (127)
- [Financial Services companies in Poland](https://www.tamtam.ai/l/financial-services-companies-poland) (112)
- [Publicly traded companies in Poland](https://www.tamtam.ai/l/publicly-traded-companies-poland) (109)
- [Food and Beverage Manufacturing companies in Poland](https://www.tamtam.ai/l/food-and-beverage-manufacturing-companies-poland) (107)
- [Consumer goods companies in Poland](https://www.tamtam.ai/l/consumer-goods-companies-poland) (105)
- [Logistics companies in Poland](https://www.tamtam.ai/l/logistics-companies-poland) (103)
- [E-commerce companies in Poland](https://www.tamtam.ai/l/ecommerce-companies-poland) (96)
- [Consulting firms in Poland](https://www.tamtam.ai/l/consulting-firms-poland) (93)

## The same list elsewhere in Poland

- [Professional services firms in Masovia](https://www.tamtam.ai/l/professional-services-firms-masovia) (76)
- [Professional services firms in Warsaw](https://www.tamtam.ai/l/professional-services-firms-warsaw) (76)

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Source: https://www.tamtam.ai/l/professional-services-firms-poland