What Are the Most Popular Business Sectors in Poland?

The most popular business sectors in Poland

1.Freight transport by road (49.41.Z)

Road freight transport is by far the most popular business sector in Poland, counting as many as 113,021 enterprises. It also drives substantial turnover, with median annual revenues among transport companies exceeding PLN 2.1 million.

2.Other computer programming activities (62.10.B)

Software engineering takes second place among Polish businesses, with 74,003 active entities. This sector also stands out with the highest average revenues per firm, reaching PLN 27 million among corporate entities.

3.Specialist medical practice activities (86.22.Z)

Rounding out the top three is specialist medical practice, which serves as the core activity for 66,486 registered companies. Specialist healthcare enjoys high financial resilience, generating median annual revenues of nearly PLN 2 million.

4.Electrical installation (43.21.Z)

Fourth position nationwide belongs to electrical installation, encompassing a total of 64,559 businesses. Electrical contractors display solid market health, posting median annual revenues of over PLN 1.3 million.

5.Legal activities (69.10.Z)

Legal services represent a significant market presence in Poland, with 58,363 law firms and legal advisory entities. It is also the most profitable industry in the entire ranking, achieving a record median net margin of 15%.

6.Retail sale via mail order houses or via Internet (47.91.Z)

Retail brokerage and e-commerce trade serve as the primary commercial foundation for 53,854 companies nationwide. Despite its massive footprint, it records the lowest profitability in the ranking, with a median net margin of just 1%.

7.Plumbing, heat and air-conditioning installation (43.22.Z)

In the heating, plumbing, and air conditioning sector, 51,054 specialized installation companies are currently registered. Robust demand for network modernization and HVAC installations yields median revenues exceeding PLN 1.75 million.

8.Renting and operating of own or leased real estate (68.20.Z)

Eighth place goes to the property sector, with 47,764 Polish firms focusing on real estate rental and asset management. This activity provides dependable returns, with a 6% median net margin backed by substantial accumulated assets.

9.Advertising agencies (73.11.Z)

The marketing and advertising landscape is driven by 47,145 advertising agencies and creative studios. The creative sector produces a steady stream of business, yielding median annual revenues topping PLN 550 thousand per entity.

10.General medical practice activities (86.21.Z)

Closing the top 10 is general medical practice, operated by 41,380 primary care doctors and health clinics. It is by far the highest-earning industry in the entire ranking, boasting both the highest median net profit and revenue.

Summary

• Road freight transport ranks as the most popular business sector in Poland, serving as the core business activity for 113,021 enterprises. Second place goes to other computer programming activities (74,003 businesses), followed by specialist medical practices in third (66,486 businesses).
• Although general medical practice closes the top 10 with 41,380 companies, it boasts the highest median net profit in the ranking, standing at USD 895 thousand. Legal activities lead the pack in profitability, delivering a remarkable net margin of 15%. At the other end of the spectrum, non-specialized retail brokerage posts the weakest financial performance, with a 1% net margin and a median net profit of just USD 1,466.
• While the ranking spans a diverse range of sectors, positive net business formation and upward financial momentum are visible almost across the board. The aggregate data across all 728 industries reflects a stable, steadily expanding Polish economy:

Methodology

The industry popularity ranking is based on combined data from the National Court Register (KRS) and the Central Registration and Information on Business (CEIDG). Financial performance indicators were calculated exclusively using statutory financial statements filed with the KRS.

Business counts include only entities with a given code registered as their primary business activity (PKD / Polish Classification of Activities). Secondary or auxiliary activities were excluded from the sample.

Under the revised PKD classification effective since 2025, the previous code 62.01.Z (computer programming activities) was split into 62.10.A (game development) and 62.10.B (other computer programming activities). As a result, newly established IT firms are predominantly registered under 62.10.B, and the drop in median financial figures for this subclass reflects the initial filings of newly incorporated micro-enterprises.

This report was prepared as of August 28, 2026; full-year figures for newly registered and deregistered companies for 2026 remain subject to final adjustment.