General cleaning of buildings companies in Köln

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

258 companies · 1–20 of 258

24/7 Clean UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 116104 Köln (Cologne) · 2023
69296a10e3…
2H Bau GmbH GmbH · HRB 98689 Köln (Cologne) · 2019
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32 Reinigungsservice UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 109249 Köln (Cologne) · 2022
0587834e87…
A + S Building Services UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 110233 Köln (Cologne) · 2022
699eb0a690…
A-QUALITÄT Gebäudereinigungsservice e.K. e.K. · HRA 26571 Köln (Cologne) · 2009
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A.E Kabelverleger und Ausbau Service GmbH GmbH · HRB 77774 Köln (Cologne) · 2013
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A.G.S. Gebäudeservice GmbH GmbH · HRB 99814 Köln (Cologne) · 2019
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Abedini Dienstleistungen GmbH GmbH · HRB 78750 Köln (Cologne) · 2013
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Adoria Facility Management eGbR eGbR · GsR 632 Köln (Cologne) · 2024
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Aduschei UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 110516 Köln (Cologne) · 2022
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Ahr Dienstleistungen GmbH GmbH · HRB 115043 Köln (Cologne) · 2023
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AKR GmbH GmbH · HRB 102409 Köln (Cologne) · 2020
79b06bd7ca…
Altintas Gebäudereinigung und Gebäude Full Service GmbH GmbH · HRB 50681 Köln (Cologne) · 2003
ac6e2c69ab…
Aman GmbH GmbH · HRB 113587 Köln (Cologne) · 2023
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ANKER GmbH GmbH · HRB 79256 Köln (Cologne) · 2013
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APC Autopflege Center Sinther GmbH GmbH · HRB 31704 Köln (Cologne) · 1999
bc41007071…
ARAS Glas- und Gebäudereinigung GmbH GmbH · HRB 103702 Köln (Cologne) · 2020
fc9af13f14…
Arnold GBM I GmbH GmbH · HRB 102475 Köln (Cologne) · 2020
0734370a34…
ART GmbH GmbH · HRB 120492 Köln (Cologne) · 2024
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AS Dienstleistungen GmbH GmbH · HRB 113394 Köln (Cologne) · 2023
f5bc319c24…

All industries in Köln

Live API

GEThandelsregister.ai/api/v1/search-organizations

?limit=20

&filters={"city":"Köln","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": "Köln",
        "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": "Köln",
      "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": "Köln",
        "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":"Köln","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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