Czech Company Lookup (ARES): IČO, DIČ, Address

Look up Czech companies in the official ARES register by IČO or search by name, with optional CZ-NACE filter. Returns name, IČO, DIČ (VAT ID), legal form, founding/dissolution dates, full address, NACE codes and register flags. Official open data. $1 per 1,000 companies.

Data source: ARES, the open business register API of the Czech Ministry of Finance (ares.gov.cz). It needs no login, proxy or browser. Results are returned as clean, flat JSON that is ready for spreadsheets, databases, BI tools and AI agents.

What can you use it for?

• Validate Czech supplier and customer IČO/DIČ in bulk
• Enrich CRM records with official name, address and activity codes
• Build Czech B2B lead lists by name and CZ-NACE
• KYB checks: active vs dissolved, VAT payer status
• Use it as a tool from AI agents through the Apify MCP server, or schedule it and send new results to Slack, Google Sheets or a webhook

Input

Field	Name	Description
icos	IČO numbers	8-digit company IDs for exact lookup
queries	Name search	Company names or words in the name
naceCodes	CZ-NACE codes	Filter name search by activity codes, e.g. 62010
onlyActive	Only active	Skip dissolved companies in search
maxResultsPerQuery	Max results per search	Companies per search (API max 1,000)

Example input

{
  "icos": [
    "27074358",
    "00177041"
  ],
  "queries": [
    "skoda auto"
  ],
  "maxResultsPerQuery": 5
}

Output

Each result is one dataset item with these fields: query, ico, name, vatId, legalFormCode, foundedAt, dissolvedAt, active, updatedAt, address, street, city, district, region, postalCode, country, naceCodes, taxOffice, primarySource, inCommercialRegister, inTradeRegister, vatPayer, aresUrl, source, scrapedAt.

Example output (real result, long fields shortened)

{
  "query": "27074358",
  "ico": "27074358",
  "name": "Asseco Central Europe, a.s.",
  "vatId": "CZ27074358",
  "legalFormCode": "121",
  "foundedAt": "2003-08-06",
  "dissolvedAt": null,
  "active": true,
  "updatedAt": "2026-10-09",
  "address": "Budějovická 778/3a, Michle, 14000 Praha 4",
  "street": "Budějovická",
  "city": "Praha",
  "district": "Praha 4",
  "region": "Hlavní město Praha"
}

Rows that could not be processed (for example a handle, package or domain that does not exist) are returned with an error field and are not charged.

Download the results as JSON, CSV, Excel or XML, or read them through the Apify API.

Pricing

This Actor uses pay-per-event pricing. You pay $0.001 per company returned, plus standard Apify platform usage, which is small because the Actor uses lightweight HTTP requests (no browser). You are never charged for results that are not returned. To cap spending, set a maximum cost per run in the run options.

Tips

• Start with a small max-results value to check your filters, then scale up.
• Schedule the Actor (for example daily) to monitor changes over time.
• The data comes straight from the source, so its freshness and completeness depend on that publisher.

Disclaimer

This Actor is not affiliated with or endorsed by any website, platform or data publisher named here. Use it in line with the target sites' terms and applicable privacy laws (e.g. GDPR/CAN-SPAM for contact data). Verify critical decisions against the official source.