ARES Scraper — Czech Company Register (IČO, DIČ, NACE, address)

Get Czech companies from ARES (ares.gov.cz, the Ministry of Finance's official register of economic subjects) as a clean table: IČO, name, DIČ (VAT ID), legal form, full seat address split into street / city / postal code / district / region, CZ-NACE activity codes with names, VAT-payer flag, status in 16 public registers (commercial register, trade register, VAT, insolvency…), commercial-register file number, tax office and founding date. Look up a list of IČO, or search by company name, activity, legal form, address or region. Pay only per company returned.

No browser, no login: data comes from the official public ARES REST API, so the Actor is fast (1 000 companies in about 30 seconds), cheap on platform usage and does not break on website redesigns.

Sample output

Real rows from a staged run (CZ-NACE 10710 "bread and pastry" in Brno):

ico	name	dic	legalFormEn	address	naceCodes	dateCreated	vatPayer
01919083	Uncle Baker s.r.o.	CZ01919083	Limited liability company (s.r.o.)	Humenná 468/20, Bohunice, 62500 Brno	016, 10710, 02400, …	2017-10-31	true
04300700	Crazy Bagi s.r.o.	CZ04300700	Limited liability company (s.r.o.)	Sousední 285/21, Jehnice, 62100 Brno	461, 10710, 56110, …	2015-08-06	true
08401527	Chleba Brno s.r.o.	CZ08401527	Limited liability company (s.r.o.)	Nové sady 988/2, Staré Brno, 60200 Brno	10710, 56110, 11010, …	2019-08-08	true
18565913	FORNIA s.r.o.	CZ18565913	Limited liability company (s.r.o.)	Pavlovská 516/19, Kohoutovice, 62300 Brno	10710, 471, 47780, …	1991-07-08	true

One full record:

{
  "ico": "01919083",
  "name": "Uncle Baker s.r.o.",
  "dic": "CZ01919083",
  "legalFormCode": "112",
  "legalForm": "Společnost s ručením omezeným",
  "legalFormEn": "Limited liability company (s.r.o.)",
  "address": "Humenná 468/20, Bohunice, 62500 Brno",
  "street": "Humenná",
  "houseNumber": "468/20",
  "cityPart": "Bohunice",
  "cityDistrict": "Brno-Bohunice",
  "city": "Brno",
  "postalCode": "62500",
  "district": "Brno-město",
  "region": "Jihomoravský kraj",
  "countryCode": "CZ",
  "naceCodes": ["016", "10710", "02400", "10", "…"],
  "naceActivities": [{ "code": "10710", "label": "Výroba pekařských a cukrářských výrobků, kromě trvanlivých" }, "…"],
  "vatPayer": true,
  "registrations": { "ROS": "AKTIVNI", "VR": "AKTIVNI", "RES": "AKTIVNI", "RZP": "AKTIVNI", "DPH": "AKTIVNI", "IR": "NEEXISTUJICI", "…": "…" },
  "commercialRegisterFileNo": "C 102893/KSBR",
  "taxOffice": "Územní pracoviště Brno IV",
  "dateCreated": "2017-10-31",
  "dateDissolved": null,
  "dateUpdated": "2026-05-23",
  "aresUrl": "https://ares.gov.cz/ekonomicke-subjekty?ico=01919083"
}

Use cases

• KYC / supplier checks: paste a list of IČO and get the current name, seat, VAT status and insolvency-register status for each in one run.
• B2B lead generation: every bakery, construction firm or IT company (by CZ-NACE) in a city or region, with legal form and founding date.
• CRM enrichment and de-duplication: normalise company names and addresses to the official register record.
• Market sizing: count companies per activity, legal form and region.
• Feed official Czech company data to an AI agent via the Apify MCP server (e.g. "look up these IČO and tell me which are VAT payers").

Pricing

Pay per event: $0.002 per company. No company, no charge. Set Max results to cap the cost of a run. Free-plan users can run it within their free credits.

Input

Field	Meaning	Default
IČO list	company IDs to look up directly (27082440, 6947, CZ 270 82 440); when set, the search fields are ignored	—
Company name	words in the registered name (pekárna, software); case- and diacritics-insensitive	—
CZ-NACE activity codes	10710, 62, 4120, or a section letter like F; a code also matches all finer codes under it	10710 (form prefill)
Legal form	s.r.o. (112), a.s. (121), sole trader (101) and all other current legal forms	all
Municipality / address	full-text match on the seat address: city, Prague district, street or postal code	Brno (form prefill)
Region (kraj)	one of the 14 Czech regions	whole country
Max results	stop after N companies (= cost cap)	100 (form: 25)
Proxy	not needed for this open government API	off

With no filter at all the Actor runs the prefilled demo search (bakeries in Brno).

The 1 000 limit. ARES refuses any search that matches more than 1 000 companies. The Actor then automatically splits the search by tax office (14 regions + the Specialised Tax Office, then each local office) and merges the results without duplicates. If a single local office still has more than 1 000 matches (e.g. all joint-stock companies in Prague 1), that part is skipped with a clear message in the log; add a company name, NACE code or address to get it. Companies with no tax office are not reachable through the split or the Region filter.

Output fields

ico, name, dic (companies only — sole traders' DIČ is derived from their personal birth number and is returned as null), vatGroupDic, legalFormCode, legalForm, legalFormEn, address, street, houseNumber, cityPart, cityDistrict, city, postalCode, district, region, country, countryCode, addressPointCode (RÚIAN), deliveryAddress, naceCodes (CZ-NACE 2025), naceActivities (code + Czech label), nace2008Codes, vatPayer, registrations, commercialRegisterFileNo, taxOfficeCode, taxOffice, primarySource, dateCreated, dateDissolved, dateUpdated, aresUrl, apiUrl, url, scrapedAt

registrations holds the subject's status in each source register, keyed by the acronyms ARES uses: ROS (basic register of persons), VR (commercial and other public registers), RES (statistical register), RZP (trade licences), DPH (VAT), SK_DPH (VAT group), SD (excise duty), IR (insolvency), CEU (bankrupts), NRPZS (healthcare providers), RPSH (political parties), RCNS (churches), SZR (farmers), RS (schools), RED (subsidies), MONITOR (state accounting units). Values: AKTIVNI, HISTORICKY, ZANIKLY, NEEXISTUJICI, …

Limits and fair use

Only the public ARES API is used, with polite rate limits (≤ 60 requests per minute, far below the register's own limits). Sole traders appear in ARES under their own name and business address; the Actor returns exactly what ARES publishes and nothing more. Respect the GDPR and ARES terms when reusing personal names.

Problems?

Open an issue on the Issues tab — median response time is under 6 hours. Include the run ID.