Comparison
A list of Polish companies can come from five kinds of sources: free official registers, online business directories, subscription data platforms, one-off lists prepared to order, or your own collection. They differ in coverage, contact data, effort and cost. This page compares them and lists what to check before you pay.
Register information as of 11 October 2026 · Content updated: 13 October 2026
What to compare
This comparison is written by firmowekontakty.pl, which itself sells one-off company lists – one of the source types below. We compare types of sources, not individual providers: we have not tested other providers’ data and do not name or price them here, because we have not verified their current offers.
The table scrolls sideways.
| Source type | What it gives you | Limits | Cost | Good for |
|---|---|---|---|---|
| Official registers (CEIDG, KRS, REGON) | Official identification data: name, address, NIP, REGON, PKD codes; in KRS also legal form, governing bodies and share capital. | Each register covers different entities: CEIDG sole traders, KRS companies and organisations. Only CEIDG can be filtered by industry and region (API with an account, 1,000 requests per 60 minutes). KRS and REGON are queried by identifier. Contacts only where the entrepreneur reported them (CEIDG); KRS has no phone numbers. | Data free of charge; the cost is the programming work. | Checking counterparties, enriching data of companies you already know, teams with a developer. |
| Online business directories | Companies presenting themselves, often with phone and website; search by category and town. | Coverage depends on which companies are listed; categories are the directory’s own, not PKD; identifiers are not always shown. Directories have their own terms of use. | Browsing is usually free; bulk copying is a matter of the directory’s terms. | Finding individual local suppliers or customers. |
| Data platforms on subscription | Search, filters and export in an application, often several users and links to a CRM. | Models you will come across: an annual commitment, monthly export limits or credits per record – check the terms in the provider’s price list. Access to the application ends with the subscription. | Recurring fee; compare the total for the whole commitment. | Continuous prospecting, several users, regular new records. |
| One-off lists prepared to order | A CSV or Excel file for one defined selection, paid once. | A snapshot as of the data date that does not update itself. Quality depends on the seller’s sources – ask for them. | One payment per file; a new version is a new order. | One campaign, one region or industry, work in your own Excel or CRM. |
| Collecting data yourself | Full control over sources, fields and selection. | Time, technical skills and maintenance; the GDPR applies to data of sole traders, and directories and websites have their own terms. | Your own working time or a developer’s. | Small, very specific lists or ongoing internal research. |
Facts about the registers come from our article Free company data from CEIDG, KRS and REGON (information as of 11 October 2026); access rules and limits are set by the register operators and may change.
The registers are official and free, but split by legal form: sole traders are in CEIDG, companies and organisations in KRS, and REGON covers both but can only be searched by identifier. A list of one industry across all legal forms therefore has to be assembled – via the CEIDG data warehouse API for sole traders and via your own processing of KRS data for companies.
For scale: the REGON register lists 4,599,771 entities declaring business activity (GUS, as of 30 June 2026). Breakdowns by voivodeship and industry are in our data overviews.
A longer checklist: How to buy a company database.
We sell one-off files (CSV, XLSX or JSON on request), without a subscription. One of our sources is our own database: 196,499 records as of 17.09.2026, of which 75.9% are in the Mazowieckie voivodeship. For other regions we compile the list for the specific enquiry.
In our own database 27.7% of records have a phone number, 29.8% an email address and 70.7% a NIP. Contacts are taken from public sources and are not checked for reachability.
We do not sell lists for email campaigns or telemarketing. Before any order we state the number of records after your filters, the fields, the data status and the price.
Details: database status · data sources and methodology · how pricing works.
For checking a counterparty or enriching data of companies you already know, yes. For a list of one industry across all legal forms with publicly listed contacts, they usually are not: only CEIDG can be filtered by industry, it covers sole traders only, and contacts are there only if the entrepreneur reported them.
A one-off file suits one defined list that you will work with in your own Excel or CRM. A subscription makes sense when you search continuously, several people use the data or you need new records regularly.
No. Companies change phone numbers and email addresses, and sources lag behind. A trustworthy seller says up front what it does not guarantee – usually email deliverability and phone reachability.
Under Article 398 of the Electronic Communications Law, commercial information by email or phone requires the recipient’s prior consent, and the provision does not distinguish between consumers and businesses. A purchased list does not contain that consent. This is not legal advice.
Tell us the industry, region, required fields and format. We will give you the number of records after the filters and the price, which you can compare with other sources.
