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Public Registers API

National Official Registry of National Economy Entities (API)

Access REGON registration data via the API and automatically feed it into your systems, applications, and databases.

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REGON API from MGBI

Access data from the National Official Register of Economic Entities (REGON) maintained by the Central Statistical Office (GUS).

REGON is the official registry containing up-to-date identification data and information on the operations of all business entities operating in Poland.

How will you use the data from the REGON API?

The REGON API from MGBI allows you to automatically retrieve information about entities listed in the registry. This information is updated daily. You can search for data by REGON number , NIP, and KRS, among other criteria—in accordance with the scope of data made available by the registry.

You can use the information from the REGON API to analyze the market, build databases of potential customers, and verify businesses.

By gathering information about the industry, address, type, and status of a business, you will support sales, risk assessment, compliance, and debt collection processes.

REGON is also the sole source of information on certain legal forms, such as general partnerships, housing associations, and farms.

For more information, please refer to our API documentation.

Who can access the REGON API?

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Debt collection agencies

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Companies specializing in accounts receivable management

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Banks and other financial institutions

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Loan companies

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Law firms

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Marketing departments

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Sales departments

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Risk Assessment Departments

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Debt collection departments

Why it is worthwhile?

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Saving time and money

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Reduce operating costs by automatically retrieving data from REGON without having to manually browse the website.

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Easy integration with IT systems

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Use REGON data directly in your applications, databases, and CRM and ERP systems.

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Verification of Entities Using Multiple Identifiers

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Search for entities by REGON, NIP, or KRS number.

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A single data source within a larger ecosystem

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Link REGON data with information from other public registries available through the MGBI Public Registries API, such as the National Court Register (KRS), the National Real Estate Register (KRZ), the VAT Taxpayer Registry, and the Market and Services Register (MSiG).

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Improved Quality of Business Processes

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Automated access to registry data makes it possible to identify entities more quickly, reduce data entry errors, and streamline processes related to customer service.

Data in the REGON registry

Identification Information

  • REGON number
  • Tax ID Number
  • KRS Number
  • Name of the entity

Address and Organizational Information

  • Registered office address
  • Legal form
  • Form of ownership
  • Information About Local Units

Operational Data

  • Type of Business
  • Primary Type of Business
  • PKD Codes

Status and History of Operations

  • Date of the entity's formation
  • Date of commencement of operations
  • Information on the Suspension and Resumption of Operations
  • Information Regarding the Termination of Operations
  • Information Regarding Removal from the Records or Registry

Additional Information

  • Information about the registration or record-keeping authority
  • Registration or record number
  • Estimated number of workers
  • Contact information, if provided to the registry
View full content
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Retrieve data conveniently

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Access via API

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Database replicas

Frequently Asked Questions

What is REGON?

REGON is the National Official Register of Economic Entities, maintained by the President of the Central Statistical Office. It contains information about economic entities operating in Poland.

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Is REGON data public?

Yes. The REGON registry is public and generally accessible, with exceptions specified by law. Data can be searched using the GUS search engine and retrieved via the API.

What criteria can be used to search for entities in the REGON API?

The API allows you to search for entities by REGON, NIP, and KRS numbers.

How does REGON differ from KRS?

REGON is a registry of entities in the national economy maintained by the Central Statistical Office (GUS) and is primarily used to identify and characterize these entities.

The KRS, on the other hand, is a court registry maintained by the Ministry of Justice, containing, among other things, information about entities subject to registration in the KRS, their governing bodies, partners, and changes to their registration data.

In practice, REGON and KRS should be viewed as complementary sources of information. With the Public Registers API, you can integrate data from both registries into your business processes.

Is it possible to integrate the REGON API with other public registries?

Yes. REGON can be one of the data sources used in automated entity verification processes.

As part of the MGBI Public Registers API—a single interface—we also provide access to, among others, the KRS API, KRZ API, VAT Taxpayers List API, MSiG API, and other public data sources.

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Public Registers API

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How many records containing data on individual entities or persons do you intend to retrieve monthly?

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©2026 MGBI
All rights
reserved
MGBI sp. z o.o.
ul. Marszałkowska 58/15
00-545 Warsaw
NIP 7010446505
REGON 360001489
KRS 0000533676
District Court for the Capital City of Warsaw
in Warsaw, 12th Commercial Division
of the National Court Register

In our collections, we process personal data relating to the business and professional activities of natural persons, as well as court proceedings conducted against them (e.g., bankruptcy, restructuring). Detailed information on this subject is available on the Personal Data Protection page.