General cleaning of buildings companies in Krefeld

Krefeld ·Currently listed companies in the General cleaning of buildings industry headquartered in Krefeld.

40 companies · 1–20 of 40

A + Facility Services GmbH GmbH · HRB 21606 Krefeld · 2026
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APS Gebäudereinigung GmbH GmbH · HRB 20230 Krefeld · 2024
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AZ Wohnen & Dienstleistungen UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 19133 Krefeld · 2022
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B. Dörper Gebäude-Dienstleistungen GmbH GmbH · HRB 13150 Krefeld · 2010
8ae57fa049…
BB Gebäudereinigung Bermel GmbH GmbH · HRB 14638 Krefeld · 2013
81b2961b67…
Blitz Gebäudeservice GmbH GmbH · HRB 11657 Krefeld · 2007
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DGS Gebäude- und Industrieservice GmbH GmbH · HRB 7940 Krefeld · 2003
242bbaa6c3…
EK Rhein-Dach-NRW UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 21072 Krefeld · 2025
fa6953491b…
Fassago GmbH GmbH · HRB 19055 Krefeld · 2022
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Giebel Lichtwerbung GmbH GmbH · HRB 11190 Krefeld · 2004
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GW UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 20803 Krefeld · 2025
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Hilgeland Gebäudedienste GmbH GmbH · HRB 10916 Krefeld · 2005
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Hilgers Gebäudereinigung Inh. Michael Hilgers e.K. e.K. · HRA 7569 Krefeld · 2026
d678722684…
IGELA Gebäudereinigungs GmbH GmbH · HRB 3874 Krefeld · 2003
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ISA GmbH GmbH · HRB 20629 Krefeld · 2024
8b246e3be6…
K.M. KLAR SICHT UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 14490 Krefeld · 2013
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k.r. Gebäudereinigung GmbH GmbH · HRB 2881 Krefeld · 2003
775e525b8b…
Krefelder Objektservice UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 20576 Krefeld · 2024
7828787e22…
König Gebäudereinigung GmbH GmbH · HRB 2363 Krefeld · 2003
98be2281bb…
König Gebäudereinigung GmbH & Co. Kommanditgesellschaft GmbH & Co. KG · HRA 2894 Krefeld · 2003
df3e62fe6f…

All industries in Krefeld

Live API

GEThandelsregister.ai/api/v1/search-organizations

?limit=20

&filters={"city":"Krefeld","industry_code":"81.21.0","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": "Krefeld",
        "industry_code": "81.21.0",
        "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": "Krefeld",
      "industry_code": "81.21.0",
      "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": "Krefeld",
        "industry_code": "81.21.0",
        "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":"Krefeld","industry_code":"81.21.0","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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