# The 26 largest companies in Rzeszów

Tamtam tracks 26 companies headquartered in Rzeszów. This list ranks all of them by number of employees on LinkedIn, led by Asseco Poland, Pratt & Whitney Rzeszów and Rzeszow University of Technology. Their median headcount is 155. Half of them were founded in 2009 or later.

The largest companies in Rzeszów are primarily active in software development, IT services, and higher education. Notable examples include Asseco Poland, a leading software producer in Central and Eastern Europe, and Pratt & Whitney Rzeszów, specializing in aerospace component manufacturing. Higher education institutions like Rzeszow University of Technology and Uniwersytet Rzeszowski also feature prominently, alongside Polskie ePłatności, a financial services provider.

A significant pattern observed is the strong presence of the IT sector, with companies like Asseco Poland, SoftSystem Sp. z o.o., and Edvantis focusing on software and IT consulting. This indicates a concentration of technological expertise within the region. Additionally, there is a notable cluster of higher education institutions, suggesting a strong academic foundation.

🇵🇱 Rzeszów · 26 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Asseco Poland](https://www.tamtam.ai/c/asseco-poland) (pl.asseco.com)<br>Leading software producer in Central and Eastern Europe, offering advanced IT solutions for banking, insurance, telecom, energy, healthcare, public administration, and more Employing over 33,000 people globally | Software Development | 🇵🇱 Rzeszów | 2,564 | 1991 |
| 2 | [Pratt & Whitney Rzeszów](https://www.tamtam.ai/c/pratt-and-whitney-rzeszow) (pwrze.com)<br>A leading player in the aerospace industry in Central Europe, specializing in manufacturing, overhaul services, design, research, and special order services | Aviation and Aerospace Component Manufacturing | 🇵🇱 Rzeszów | 996 |  |
| 3 | [Rzeszow University of Technology](https://www.tamtam.ai/c/rzeszow-university-of-technology) (prz.edu.pl)<br>An academic university in Poland offering a wide range of programs, conducting research in applied sciences, and promoting values of community and human rights | Higher Education | 🇵🇱 Rzeszów | 691 | 1951 |
| 4 | [Uniwersytet Rzeszowski](https://www.tamtam.ai/c/uniwersytet-rzeszowski) (ur.edu.pl)<br>The largest university in the Subcarpathian District, offering a wide range of academic programs and educational opportunities for students | Higher Education | 🇵🇱 Rzeszów | 677 | 2001 |
| 5 | [Wyższa Szkoła Informatyki i Zarządzania w Rzeszowie](https://www.tamtam.ai/c/wyzsza-szkola-informatyki-i-zarzadzania-w-rzeszowie) (wsiz.edu.pl)<br>A leading private university in southeastern Poland, specializing in IT and management education with 6,000 students, including 1,500 international students | Higher Education | 🇵🇱 Rzeszów | 401 | 1996 |
| 6 | [Polskie ePłatności](https://www.tamtam.ai/c/polskie-eplatnosci) (pep.pl)<br>Leading Polish merchant acquirer providing in-store, online payment solutions and value-added services for businesses, experiencing significant growth through organic expansion and strategic acquisitions. | Financial Services | 🇵🇱 Rzeszów | 392 | 2010 |
| 7 | [Szpital MSWiA](https://www.tamtam.ai/c/szpital-mswia) (szpitalmsw.rzeszow.pl)<br>A medical practice in Rzeszów, Poland, providing healthcare services at 16 Krakowska | Medical Practices | 🇵🇱 Rzeszów | 382 |  |
| 8 | [SoftSystem Sp. z o.o.](https://www.tamtam.ai/c/softsystem-sp-z-o-o) (softsystem.pl)<br>Specializing in developing database management systems for medical institutions, with successful implementations in over 300 hospitals and medical laboratories in North America Operating since 1990 with over 588 software developers and testers in Poland | IT Services and IT Consulting | 🇵🇱 Rzeszów | 344 | 1990 |
| 9 | [Edvantis](https://www.tamtam.ai/c/edvantis) (edvantis.com)<br>Global software engineering company providing solutions to businesses of all sizes, launching ambitious products on time and to a high standard, trusted by top-tier companies. | IT Services and IT Consulting | 🇵🇱 Rzeszów | 330 | 2005 |
| 10 | [Kancelaria Adwokacka w Rzeszowie](https://www.tamtam.ai/c/kancelaria-adwokacka-w-rzeszowie) (e-adwokat.rzeszow.pl)<br>A law firm in Rzeszow providing professional legal services | Legal Services | 🇵🇱 Rzeszów | 329 |  |
| 11 | [Asseco](https://www.tamtam.ai/c/asseco) (asseco.com)<br>Global federation of IT companies with extensive experience in providing top quality IT technologies and solutions to support business operations worldwide | Software Development | 🇵🇱 Rzeszów | 295 | 2004 |
| 12 | [Dystrybutor Kosmetyków Sonia](https://www.tamtam.ai/c/dystrybutor-kosmetykow-sonia) (sonia.pl)<br>A well-established wholesaler distributing cosmetics since 1991, delivering top Polish and global brands efficiently across Europe with a large warehouse and dedicated team | Wholesale | 🇵🇱 Rzeszów | 181 | 1991 |
| 13 | [GC ENERGY](https://www.tamtam.ai/c/gc-energy) (gc-energy.eu)<br>Specializing in control instrumentation assembly, industrial automation, and electrical installations for various industrial investments including power plants, refineries, and LNG terminals | Design Services | 🇵🇱 Rzeszów | 155 | 2005 |
| 14 | [Kancelaria Adwokacka Urban](https://www.tamtam.ai/c/kancelaria-adwokacka-urban) (kancelariaurban.com)<br>A modern law firm providing comprehensive legal services to businesses and individuals, offering innovative solutions with a focus on professionalism, trust, and partnership | Law Practice | 🇵🇱 Rzeszów | 107 | 2017 |
| 15 | [TB Logistics Sp. Z o.o. Sp.K](https://www.tamtam.ai/c/tb-logistics-sp-z-o-o-sp-k) (facebook.com)<br>A transportation company specializing in domestic and international logistics, offering personalized services, with a focus on customer satisfaction and continuous improvement | Truck Transportation | 🇵🇱 Rzeszów | 84 | 2007 |
| 16 | [Podkarpackie Centrum Innowacji](https://www.tamtam.ai/c/podkarpackie-centrum-innowacji) (pcinn.org)<br>A non-profit organization facilitating technology transfer between academia and businesses through research commercialization, industry collaborations, and a prototyping platform for students | Research Services | 🇵🇱 Rzeszów | 68 | 2017 |
| 17 | [Petrosoft.pl - digital transformation partner in railways](https://www.tamtam.ai/c/petrosoft-pl-digital-transformation-partner-in-railways) (petrosoft.pl)<br>An IT integrator and software producer providing integrated IT solutions for various industries, including manufacturing, railway, logistics, petrochemical, and agriculture Offering computer production and sales | Software Development | 🇵🇱 Rzeszów | 55 | 2000 |
| 18 | [mobitouch](https://www.tamtam.ai/c/mobitouch) (mobitouch.net)<br>A team of software developers and designers specialized in creating user-friendly and responsive communication solutions for brands to enhance mobility with customers | Software Development | 🇵🇱 Rzeszów | 42 | 2012 |
| 19 | [Salesbook](https://www.tamtam.ai/c/salesbook) (salesbook.com)<br>It offers a unified sales platform with tools for sales enablement, automation, CRM, and price quoting to enhance sales efficiency. | Software Development | 🇵🇱 Rzeszów | 38 | 2016 |
| 20 | [Europa Systems Rzeszów Sp. z o.o.](https://www.tamtam.ai/c/europa-systems-rzeszow-sp-z-o-o) (europasystems.pl)<br>Specializing in software and automation solutions for optimizing production processes, our company supports small to medium manufacturing firms with comprehensive services from concept creation to implementation | Software Development | 🇵🇱 Rzeszów | 28 | 2009 |
| 21 | [HugeTECH](https://www.tamtam.ai/c/hugetech) (hugetech.pl)<br>This company creates and develops startups, connects technological projects with large companies, and provides strategic and branding advice | Venture Capital and Private Equity Principals | 🇵🇱 Rzeszów | 12 | 2016 |
| 22 | [E. van Wijk Logistics Poland](https://www.tamtam.ai/c/e-van-wijk-logistics-poland) (evanwijk.com.pl)<br>The company offers transport, logistics, and warehousing services in Europe, CIS, and Central Asia with a fleet of trucks, warehouses, and qualified employees | Truck Transportation | 🇵🇱 Rzeszów | 10 | 2015 |
| 23 | [Sellizer](https://www.tamtam.ai/c/sellizer) (sellizer.io)<br>It is a sales automation tool that enhances proposal management, customer tracking, and provides insights to improve sales team performance. | Software Development | 🇵🇱 Rzeszów | 9 | 2018 |
| 24 | [Devesol - Business process automation](https://www.tamtam.ai/c/devesol-business-process-automation) (devesol.pl)<br>This company specializes in automating processes for other businesses to increase productivity, save time, reduce costs, and accelerate success | IT Services and IT Consulting | 🇵🇱 Rzeszów | 7 | 2023 |
| 25 | [BRJ](https://www.tamtam.ai/c/brj)<br>BRJ creates online stores using Magento 2, offering flexible, high-performance solutions with integrated payment options to exceed customer expectations and drive online success | IT Services and IT Consulting | 🇵🇱 Rzeszów | 6 | 2023 |
| 26 | [ServoCode Sp. z o.o.](https://www.tamtam.ai/c/servocode-sp-z-o-o) (servocode.com)<br>The company delivers software quickly and adapts to changing requirements using Agile SCRUM and Test Driven Development methods They prioritize business needs over technology | Software Development | 🇵🇱 Rzeszów | 4 | 2016 |

## 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.

## The same list elsewhere in Poland

- [The largest companies in Poland](https://www.tamtam.ai/l/largest-companies-poland) (2,488)
- [The largest companies in Masovia](https://www.tamtam.ai/l/largest-companies-masovia) (984)
- [The largest companies in Lesser Poland](https://www.tamtam.ai/l/largest-companies-lesser-poland) (232)
- [The largest companies in Lower Silesia](https://www.tamtam.ai/l/largest-companies-lower-silesia) (194)
- [The largest companies in Silesia](https://www.tamtam.ai/l/largest-companies-silesia) (190)
- [The largest companies in Greater Poland](https://www.tamtam.ai/l/largest-companies-greater-poland) (187)
- [The largest companies in Pomerania](https://www.tamtam.ai/l/largest-companies-pomerania) (158)
- [The largest companies in Łódź Voivodeship](https://www.tamtam.ai/l/largest-companies-lodz-voivodeship) (73)
- [The largest companies in Kuyavia-Pomerania](https://www.tamtam.ai/l/largest-companies-kuyavia-pomerania) (53)
- [The largest companies in Warsaw](https://www.tamtam.ai/l/largest-companies-warsaw) (872)
- [The largest companies in Kraków](https://www.tamtam.ai/l/largest-companies-krakow) (181)
- [The largest companies in Wrocław](https://www.tamtam.ai/l/largest-companies-wroclaw) (166)
- [The largest companies in Poznań](https://www.tamtam.ai/l/largest-companies-poznan) (142)
- [The largest companies in Gdańsk](https://www.tamtam.ai/l/largest-companies-gdansk) (80)
- [The largest companies in Katowice](https://www.tamtam.ai/l/largest-companies-katowice) (59)
- [The largest companies in Łódź](https://www.tamtam.ai/l/largest-companies-lodz) (53)
- [The largest companies in Gdynia](https://www.tamtam.ai/l/largest-companies-gdynia) (41)
- [The largest companies in Gliwice](https://www.tamtam.ai/l/largest-companies-gliwice) (29)
- [The largest companies in Lublin](https://www.tamtam.ai/l/largest-companies-lublin) (28)
- [The largest companies in Szczecin](https://www.tamtam.ai/l/largest-companies-szczecin) (26)

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Source: https://www.tamtam.ai/l/largest-companies-rzeszow