Czechia ARES Business Register Scraper
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Czechia ARES Business Register Scraper
Search Czechia's official ARES business register by company name or IČO number. Returns legal name, address, legal form, NACE codes, VAT number, incorporation date, and source register (VR/RŽP/RES).
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Extract company records from Czechia's official ARES business register (Administrativní registr ekonomických subjektů) via the government's public REST API.
Supports keyword/company-name search with full pagination and direct IČO (registration number) lookup. Returns registered name, address, legal form, NACE economic-activity codes, VAT number, incorporation date, and source register — all in a single structured JSON dataset.
What you get
Each record contains:
| Field | Description |
|---|---|
ico | 8-digit IČO company registration number (null for foreign branches without Czech IČO) |
obchodniJmeno | Registered legal name |
pravniForma | Legal form code and label (e.g. 121 – Akciová společnost, 122 – Společnost s ručením omezeným) |
sidlo_textovaAdresa | Full registered address as text |
sidlo_kodStatu | Country code of registered seat (CZ, SK, DE, ...) |
sidlo_nazevObce | Municipality / city |
sidlo_psc | Postal code |
datumVzniku | Incorporation / registration date (ISO 8601) |
datumZaniku | Dissolution date (ISO 8601), null if still active |
dic | VAT registration number (DIČ) |
financniUrad | Assigned tax office code |
czNace | Comma-separated NACE economic-activity codes |
primarniZdroj | Primary source register: VR (Companies Register), RŽP (Trade Licensing), RES, ROS, etc. |
seznamRegistraci | JSON-encoded map of sub-register activity states |
scraped_at | ISO 8601 retrieval timestamp |
Use cases
- KYC / AML screening — verify registration status, legal form, and address for Czech counterparties
- Lead generation — search by company name to build B2B prospect lists from an official government source
- B2B data enrichment — supply a list of IČO numbers to batch-enrich an existing CRM or database
- Due diligence — retrieve incorporation date, VAT registration, and source register memberships
- Market research — discover companies by keyword, filter by legal form or NACE sector
Input
| Parameter | Type | Description |
|---|---|---|
searchQuery | string | Company name or keyword to search for in ARES. Either searchQuery or icoList must be provided. |
icoList | string[] | List of 8-digit IČO numbers for direct lookup. Overrides searchQuery when provided. |
maxItems | integer | Maximum number of records to return. |
Example: keyword search
Example: direct IČO lookup
Data source
Data is fetched from the official ARES REST v3 API operated by the Czech Ministry of Finance. ARES aggregates records from the main Czech company registers:
- VR — Obchodní rejstřík (Companies Register, Ministry of Justice)
- RŽP — Živnostenský rejstřík (Trade Licensing Register)
- RES — Registr ekonomických subjektů (Czech Statistical Office)
- ROS — Registr osob (Persons Register)
Approximately 5 million registered economic subjects are accessible via the API. The IČO is the canonical identifier for Czech business data — it links to tax records, procurement databases, and court filings.
