ares
Czech & Slovak business registry — look up companies by IČO, search by name, check legal form, address, and VAT status.
Community: Submitted by a user or imported; check the owner before granting accessOnlineNo sign-inGlobalFreeRead-only
What it can do
- Lookup By Ico: Get a single Czech company record by its IČO (8-digit Business ID). Returns official name, registered address, legal form, VAT ID (DIČ), founding date, and trade license activities. Ret
- Search Companies: Search ARES by company name, city, street, PSČ, or NACE code. Combines all filters with AND. Useful when user knows name but not IČO, looking for companies in a building, or all busi
- Search By Address: Find all companies registered at a given Czech address. Useful for due diligence (virtual offices, shell companies), real estate research, or competitor mapping in a building.
What data it sees
Do you need an account
No: the server works without sign-in
Czech & Slovak business registry — look up companies by IČO, search by name, check legal form, address, and VAT status. Direct from ARES (Czech Ministry of Finance), the official source. Fast, free, no reseller markup.
Server tool list (9)
Raw names from tools/list. Only developers need these.
| lookup_by_ico | Get a single Czech company record by its IČO (8-digit Business ID). Returns official name, registered address, legal form, VAT ID (DIČ), founding date, and trade license activities. Returns null if IČO is not found in ARES. |
| search_companies | Search ARES by company name, city, street, PSČ, or NACE code. Combines all filters with AND. Useful when user knows name but not IČO, looking for companies in a building, or all businesses in a sector. |
| search_by_address | Find all companies registered at a given Czech address. Useful for due diligence (virtual offices, shell companies), real estate research, or competitor mapping in a building. |
| search_by_nace | Find Czech companies by CZ-NACE activity code (economic sector classification). Example: "62" = IT, "47" = retail, "86" = healthcare. Optional city filter. Useful for market research. |
| get_bank_accounts | Get transparent bank accounts published for this company (only available for VAT-registered subjects). Useful to verify payment details on an invoice match the company. |
| get_statutaries | Get current statutory body (jednatelé, představenstvo, etc.) of a Czech company — who can legally act on its behalf. Returns active members only (with valid zápis, not yet removed). Essential for due diligence and compliance checks. |
| validate_dic | Validate a Czech DIČ (VAT ID). Format check: "CZ" + 8-10 digits. For 8-digit tail (legal entities) also runs MOD11 checksum against the embedded IČO. |
| check_vat_payer | Check whether a Czech company is a registered VAT payer (plátce DPH). If yes, returns DIČ, financial office, and any transparent bank accounts (payment details). |
| get_history | Get historical record of a company (previous names, registered address changes, trade license history). Useful for due diligence. |