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.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Asseco Polandpl.asseco.com
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 |
2,564 | |||
| 2 |
Pratt & Whitney Rzeszówpwrze.com
A leading player in the aerospace industry in Central Europe, specializing in manufacturing, overhaul services, design, research, and special order services |
996 | |||
| 3 |
Rzeszow University of Technologyprz.edu.pl
An academic university in Poland offering a wide range of programs, conducting research in applied sciences, and promoting values of community and human rights |
691 | |||
| 4 |
Uniwersytet Rzeszowskiur.edu.pl
The largest university in the Subcarpathian District, offering a wide range of academic programs and educational opportunities for students |
677 | |||
| 5 |
Wyższa Szkoła Informatyki i Zarządzania w Rzeszowiewsiz.edu.pl
A leading private university in southeastern Poland, specializing in IT and management education with 6,000 students, including 1,500 international students |
401 | |||
| 6 |
Polskie ePłatnościpep.pl
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. |
392 | |||
| 7 | 
Szpital MSWiAszpitalmsw.rzeszow.pl
A medical practice in Rzeszów, Poland, providing healthcare services at 16 Krakowska |
382 | |||
| 8 |
SoftSystem Sp. z o.o.softsystem.pl
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 |
344 | |||
| 9 |
Edvantisedvantis.com
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. |
330 | |||
| 10 |
Kancelaria Adwokacka w Rzeszowiee-adwokat.rzeszow.pl
A law firm in Rzeszow providing professional legal services |
329 | |||
| 11 |
Assecoasseco.com
Global federation of IT companies with extensive experience in providing top quality IT technologies and solutions to support business operations worldwide |
295 | |||
| 12 |
Dystrybutor Kosmetyków Soniasonia.pl
A well-established wholesaler distributing cosmetics since 1991, delivering top Polish and global brands efficiently across Europe with a large warehouse and dedicated team |
181 | |||
| 13 |
GC ENERGYgc-energy.eu
Specializing in control instrumentation assembly, industrial automation, and electrical installations for various industrial investments including power plants, refineries, and LNG terminals |
155 | |||
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. | |||||
| 14 |
Kancelaria Adwokacka Urbankancelariaurban.com
A modern law firm providing comprehensive legal services to businesses and individuals, offering innovative solutions with a focus on professionalism, trust, and partnership |
107 | |||
| 15 |
TB Logistics Sp. Z o.o. Sp.Kfacebook.com
A transportation company specializing in domestic and international logistics, offering personalized services, with a focus on customer satisfaction and continuous improvement |
84 | |||
| 16 |
Podkarpackie Centrum Innowacjipcinn.org
A non-profit organization facilitating technology transfer between academia and businesses through research commercialization, industry collaborations, and a prototyping platform for students |
68 | |||
| 17 |
Petrosoft.pl - digital transformation partner in railwayspetrosoft.pl
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 |
55 | |||
| 18 |
mobitouchmobitouch.net
A team of software developers and designers specialized in creating user-friendly and responsive communication solutions for brands to enhance mobility with customers |
42 | |||
| 19 |
Salesbooksalesbook.com
It offers a unified sales platform with tools for sales enablement, automation, CRM, and price quoting to enhance sales efficiency. |
38 | |||
| 20 |
Europa Systems Rzeszów Sp. z o.o.europasystems.pl
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 |
28 | |||
| 21 |
HugeTECHhugetech.pl
This company creates and develops startups, connects technological projects with large companies, and provides strategic and branding advice |
12 | |||
| 22 |
E. van Wijk Logistics Polandevanwijk.com.pl
The company offers transport, logistics, and warehousing services in Europe, CIS, and Central Asia with a fleet of trucks, warehouses, and qualified employees |
10 | |||
| 23 |
Sellizersellizer.io
It is a sales automation tool that enhances proposal management, customer tracking, and provides insights to improve sales team performance. |
9 | |||
| 24 |
Devesol - Business process automationdevesol.pl
This company specializes in automating processes for other businesses to increase productivity, save time, reduce costs, and accelerate success |
7 | |||
| 25 |
BRJ
BRJ creates online stores using Magento 2, offering flexible, high-performance solutions with integrated payment options to exceed customer expectations and drive online success |
6 | |||
| 26 |
ServoCode Sp. z o.o.servocode.com
The company delivers software quickly and adapts to changing requirements using Agile SCRUM and Test Driven Development methods They prioritize business needs over technology |
4 | |||
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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 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 Poznań 142
- 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 Szczecin 26