# ARES Scraper: Czech Company Registry & IČO Lookup (`mrslm_data/czech-company-registry`) Actor

Search Czech companies in the official ARES register by name, IČO, city, NACE code, legal form or founding date: VAT ID (DIČ), address, NACE, employee band.

- **URL**: https://apify.com/mrslm_data/czech-company-registry.md
- **Developed by:** [MRSLM Data](https://apify.com/mrslm_data) (community)
- **Categories:** Business, Lead generation
- **Security:** Limited permissions
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $1.20 / 1,000 companies

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.
Since this Actor supports Apify Store discounts, the price gets lower the higher subscription plan you have.

Learn more: https://docs.apify.com/actors/running/actors-in-store.md#pay-per-event

## What's an Apify Actor?

An Actor is a serverless cloud program that runs on the Apify platform. It has two run modes.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.

Apify vocabulary and the platform model are defined once, in the agent quickstart at https://apify.com/agents.md.

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For examples already wired to this Actor's own input schema, see the [API](#api) section below.

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).

# README

## ARES Scraper: Czech Company Registry & IČO Lookup

**Search Czech companies in the official ARES register by name, ICO, city, NACE code, legal form or founding date: VAT ID, address, NACE, employee band. $1.50 per 1,000 companies.**

ARES, run by the Czech Ministry of Finance, joins the commercial register, the trade licence register, the statistical register (RES) and the VAT register into one record per company. It is the official starting point for any Czech B2B list or company check.

### Quick start

1. Press **Start**. The form is already filled with this example input, so the first run returns real rows in under a minute:

```json
{
  "searchTerms": [
    "software"
  ],
  "cities": [
    "Brno"
  ],
  "maxResults": 20
}
```

2. Swap in your own values, or call the Actor through the Apify API, Make, Zapier, n8n or the Python/JS clients with the same JSON.
3. Download the results as JSON, CSV or Excel from the **Output** tab, or schedule the run to repeat.

### Sample row (real run, trimmed)

```json
{
  "ico": "02356571",
  "name": "Intelligent Software s.r.o.",
  "legalFormCode": "112",
  "legalForm": "Společnost s ručením omezeným",
  "vatId": "CZ02356571",
  "foundedDate": "2013-11-27",
  "dissolvedDate": null,
  "active": true,
  "address": "Svatopluka Čecha 2047/93, Královo Pole, 61200 Brno",
  "street": "Svatopluka Čecha",
  "city": "Brno",
  "cityPart": "Královo Pole",
  "postalCode": "61200",
  "district": "Brno-město",
  "region": "Jihomoravský kraj",
  "country": "CZ",
  "naceCodes": [
    "68200",
    "74200",
    "62",
    "855"
  ],
  "naceCodes2008": [
    "00",
    "01493",
    "461",
    "620"
  ],
  "mainNace": "62",
  "employeeBand": "1-5",
  "employeeBandCode": "120",
  "taxOfficeCode": "290",
  "primarySource": "ros",
  "activeRegisters": [
    "Basic register (ROS)",
    "Commercial register",
    "Statistical register (RES)",
    "Trade licence register"
  ],
  "vatRegistered": true,
  "inInsolvencyRegister": false,
  "lastUpdated": "2026-08-18",
  "aresUrl": "https://ares.gov.cz/ekonomicke-subjekty?ico=02356571"
}
```

Also included: legal form code, district and region, postal code, all NACE codes (current and 2008), tax office code, the registers the company appears in, VAT and insolvency-register flags, dissolution date and last update.

### Who uses this

- **B2B sales teams**: build Czech prospect lists by city, sector and size.
- **Accountants, lawyers and KYC teams**: check an ICO, VAT ID, address and insolvency flag in seconds.
- **Analysts**: follow new company formation by sector.

### How to use it

1. Enter names or ICO numbers, or filter by city, NACE code, legal form and founding date.
2. Keep "Include employee band" on to size each company, or turn it off for faster bulk runs.
3. Run, export to CSV or Excel, or schedule it to catch new companies.

### Pricing

- **Company: $1.50 per 1,000 saved** (Silver $1.35, Gold $1.20)
- Plus $0.00005 per run. You pay only for companies saved after your filters. Searches with no matches are free.

### FAQ

**Where does the data come from?** From the official ARES REST API of the Czech Ministry of Finance (ares.gov.cz), free to use without registration.

**Is any personal data included?** Natural persons (sole traders, self-employed farmers and foreign individuals doing business) are never requested or output, and no data about people (statutory bodies, shareholders, owners) is collected. Every row is a legal entity.

**How fresh is it?** Live. ARES reflects the source registers within a day.

**Can I get only new records each day?** Yes. Use the date window input and schedule the Actor; each run returns what is new in that window.

### Is it legal?

This Actor only reads official open-data APIs that the publisher offers to everyone without a login or key. It obeys robots.txt, stays under the published rate limits, and never tries to get past logins, paywalls, captchas or bot checks. Natural persons (sole traders, self-employed farmers and foreign individuals doing business) are never requested or output, and no data about people (statutory bodies, shareholders, owners) is collected. Every row is a legal entity. You are responsible for how you use the data: follow the source's licence and terms and the privacy and marketing laws that apply to you (GDPR, CAN-SPAM, PECR, etc.). This tool is independent and not affiliated with or endorsed by the data publisher.

# Actor input Schema

## `searchTerms` (type: `array`):

Search by company name or part of it. One per line.

## `icos` (type: `array`):

Exact 8-digit Czech company IDs (ICO). Leading zeros are added for you.

## `cities` (type: `array`):

Town or city of the registered address, e.g. Praha, Brno, Ostrava.

## `naceCodes` (type: `array`):

CZ-NACE activity codes, e.g. 62 (IT services) or 6201 (software development). Several = any of them.

## `legalForms` (type: `array`):

3-digit CZSO legal form codes, e.g. 112 (s.r.o.), 121 (a.s.), 205 (cooperative). Default: all company forms, never natural persons.

## `foundedWithinDays` (type: `integer`):

Only companies founded in the last N days: a feed of new Czech companies. 0 = any date.

## `activeOnly` (type: `boolean`):

Skip companies that have been dissolved or struck off.

## `includeEmployeeBand` (type: `boolean`):

Add the CZSO employee-count band from the statistical register (RES). One extra API call per company.

## `maxResultsPerSearch` (type: `integer`):

Cap per search term (or per source). 0 = no cap.

## `maxResults` (type: `integer`):

Safety cap on saved companies across the whole run. 0 = no cap. Your max cost per run is always respected.

## Actor input object example

```json
{
  "searchTerms": [
    "software"
  ],
  "cities": [
    "Brno"
  ],
  "foundedWithinDays": 0,
  "activeOnly": true,
  "includeEmployeeBand": true,
  "maxResultsPerSearch": 0,
  "maxResults": 20
}
```

# Actor output Schema

## `results` (type: `string`):

All companies as a dataset (JSON, CSV, Excel and more via the API or Console).

## `summary` (type: `string`):

Matches and saved rows per search, failures and the stop reason.

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {
    "searchTerms": [
        "software"
    ],
    "cities": [
        "Brno"
    ],
    "maxResults": 20
};

// Run the Actor and wait for it to finish
const run = await client.actor("mrslm_data/czech-company-registry").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = {
    "searchTerms": ["software"],
    "cities": ["Brno"],
    "maxResults": 20,
}

# Run the Actor and wait for it to finish
run = client.actor("mrslm_data/czech-company-registry").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{
  "searchTerms": [
    "software"
  ],
  "cities": [
    "Brno"
  ],
  "maxResults": 20
}' |
apify call mrslm_data/czech-company-registry --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,mrslm_data/czech-company-registry"
        }
    }
}
```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/nKSc7kb9e9PVUMCqL/builds/4sSitAL9wFP6Go3Ac/openapi.json