Specialised construction activities in civil engineering companies in Ratingen

Ratingen ·Currently listed companies in the Specialised construction activities in civil engineering industry headquartered in Ratingen.

13 companies

Amand GmbH & Co. Renaturierung Heckhofweg KG GmbH & Co. KG · HRA 23463 Düsseldorf (Dusseldorf) · 2015
4c17056f77…
BARA GmbH GmbH · HRB 71289 Düsseldorf (Dusseldorf) · 2013
cef57ad347…
Bauunternehmung Hans Vössing GmbH & Co KG GmbH & Co. KG · HRA 15331 Düsseldorf (Dusseldorf) · 1964
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CE Tiefbau und Abbruch GmbH GmbH · HRB 109660 Düsseldorf (Dusseldorf) · 2025
245af123ad…
Coomans GmbH GmbH · HRB 101322 Düsseldorf (Dusseldorf) · 2023
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Erdbau Linde GmbH GmbH · HRB 106816 Düsseldorf (Dusseldorf) · 2024
4be70183f7…
Erva Bau GmbH GmbH · HRB 99692 Düsseldorf (Dusseldorf) · 2023
d06624a2ce…
Gebr. Dimmendaal GmbH GmbH · HRB 43421 Düsseldorf (Dusseldorf) · 1990
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Infra BAUMIT GmbH GmbH · HRB 108991 Düsseldorf (Dusseldorf) · 2025
ecbc53c111…
Ingenieurbau 3 GmbH & Co. KG GmbH & Co. KG · HRA 23592 Düsseldorf (Dusseldorf) · 2015
fe964b891e…
InnRAT GmbH GmbH · HRB 97122 Düsseldorf (Dusseldorf) · 2022
34d9bbada0…
M & I Bau GmbH GmbH · HRB 33876 Wuppertal · 2023
fe9479d892…
Vennes Erd- und Tiefbau Abbruch GmbH & Co. KG GmbH & Co. KG · HRA 26079 Düsseldorf (Dusseldorf) · 2020
fd67611060…

All industries in Ratingen

Live API

GEThandelsregister.ai/api/v1/search-organizations

?limit=20

&filters={"city":"Ratingen","industry_code":"43.50.0","industry_scheme":"WZ2025"}

# pip install handelsregister
from handelsregister import Handelsregister

client = Handelsregister(api_key="YOUR_API_KEY")  # or set HANDELSREGISTER_API_KEY
page = client.search_organizations(
    filters={
        "city": "Ratingen",
        "industry_code": "43.50.0",
        "industry_scheme": "WZ2025"
    },
    limit=20,
    skip=0,
)
print(page["total"])
for item in page["results"]:
    print(item["name"], item["registration"]["register_number"])

// npm install handelsregister
import { Handelsregister } from 'handelsregister';

const client = new Handelsregister('YOUR_API_KEY'); // or set HANDELSREGISTER_API_KEY
const page = await client.searchOrganizations({
  filters: {
      "city": "Ratingen",
      "industry_code": "43.50.0",
      "industry_scheme": "WZ2025"
  },
  limit: 20,
  skip: 0,
});
console.log(page.total);
for (const item of page.results) {
  console.log(item.name, item.registration.register_number);
}

// npm install handelsregister
const { Handelsregister } = require('handelsregister');

const client = new Handelsregister(process.env.HANDELSREGISTER_API_KEY);
(async () => {
  const page = await client.searchOrganizations({
    filters: {
        "city": "Ratingen",
        "industry_code": "43.50.0",
        "industry_scheme": "WZ2025"
    },
    limit: 20,
    skip: 0,
  });
  console.log(page.total);
  for (const item of page.results) {
    console.log(item.name, item.registration.register_number);
  }
})();

curl 'https://handelsregister.ai/api/v1/search-organizations?limit=20' \
  -H 'x-api-key: YOUR_API_KEY' \
  -G --data-urlencode 'filters={"city":"Ratingen","industry_code":"43.50.0","industry_scheme":"WZ2025"}'

{
    "results": [
        {
            "entity_id": "<32-char hex>",
            "name": "<string>",
            "registration": {
                "court": "<string>",
                "register_type": "<string>",
                "register_number": "<string>"
            },
            "address": {
                "house_number": "<string>",
                "street": "<string>",
                "postal_code": "<string>",
                "city": "<string>",
                "county": "<string>",
                "state": "<string>",
                "country": "<ISO country>",
                "coordinates": {
                    "latitude": "<float>",
                    "longitude": "<float>"
                }
            },
            "registration_date": "<ISO date>",
            "purpose": "<string>"
        }
    ],
    "total": "<int>",
    "meta": {
        "request_credit_cost": "<int>",
        "credits_remaining": "<int>"
    }
}

results[]

entity_id string

Stable 32-char hex identifier. Pass straight into /fetch-organization as `q`.

name string

Registered company name.

registration object

address object

Postal address with street, house_number, postal_code, city, county, state, country and coordinates (latitude/longitude).

registration_date date

Initial entry into the commercial register (ISO date).

purpose string

Stated business purpose (Unternehmensgegenstand).

top-level

total integer

Total result count for pagination.

meta.request_credit_cost integer

Credits actually charged for this call.

meta.credits_remaining integer

Account credit balance remaining after this call.

Location · Industry · Legal form · Full-text

Filters & master data — via search-organizations

City, industry, legal form, registration date: every argument combinable through the filters parameter. One REST endpoint, every German company.

Location & geo Filter by city, postal code, state and county through city, postal_code, state and county.
Industry (WZ2025) Industry segmentation via the official WZ2025 codes — industry_code combined with industry_scheme.
Legal form GmbH, AG, KG, OHG and more via legal_form_code.
Company size bs_company_size_category – small, medium, large based on balance-sheet totals.
Active status Restrict to active entries or include deleted companies via active.
Registration date Date ranges via registration_date_from and registration_date_to.
Full-text search Free-text query via the q parameter (min. 2 characters).
Pagination skip and limit (up to 30 results per call) for deep lists.
Master data per result entity_id, name, address, registration and registration_date – pass entity_id straight to /fetch-organization.

Run every filter live with an API key. Get an API key →

Code · AI-Agents · No-Code · Workflows

Drops into any stack

The search-organizations API speaks every mainstream client: REST, Python, Node, MCP for AI agents, n8n and webhook platforms.

REST API Simple GET request with the X-API-KEY header and JSON-encoded filters. Python requests, httpx or your favourite library — pass filters via json.dumps. Node.js fetch or axios with URLSearchParams. Works in edge, worker and browser runtimes. MCP Server Directly in Claude, Cursor or any MCP-aware AI client as the search_organizations tool. n8n Pre-built custom node for workflow automation — city, industry and size as filter inputs. Webhook Callable from Zapier, Make or any other webhook platform.

This list in your app

Grab an API key and filter every German company by city, industry, size and more — straight from your application. One REST endpoint, every result.

Get an API key

Filters & master data — via search-organizations

Drops into any stack

This list in your app

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