Glazing companies in Gelsenkirchen

Gelsenkirchen ·Currently listed companies in the Glazing industry headquartered in Gelsenkirchen.

23 companies · 1–20 of 23

AS Trockenbau GmbH & Co. KG GmbH & Co. KG · HRA 3416 Gelsenkirchen · 2002
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Baugeschäft A. Gerke GmbH & Co. Kommanditgesellschaft GmbH & Co. KG · HRA 1491 Gelsenkirchen · 1991
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Bedachungen Herz GmbH & Co. KG GmbH & Co. KG · HRA 1580 Gelsenkirchen · 1996
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Begaj Montage UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 17373 Gelsenkirchen · 2020
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Berger KG KG · HRA 1263 Gelsenkirchen · 1979
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Christian Zipper GmbH & Co. KG GmbH & Co. KG · HRA 6067 Gelsenkirchen · 2022
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Eigentümergemeinschaft Schreiner eGbR eGbR · GsR 76 Gelsenkirchen · 2024
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G & L Montageteam GmbH & Co. KG GmbH & Co. KG · HRA 3370 Gelsenkirchen · 2003
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Galabau.Schramme e.Kfr. e.K. · HRA 5955 Gelsenkirchen · 2021
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Geisler und Gelir eGbR eGbR · GsR 90 Gelsenkirchen · 2024
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Gladen GmbH & Co. Grundstücksverwaltungs-KG GmbH & Co. KG · HRA 1867 Gelsenkirchen · 1996
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Glaswerkstatt Friedhelm Plötz GmbH GmbH · HRB 15838 Gelsenkirchen · 2020
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Große-Kreul u. Partner Baubetreuungs GmbH & Co. KG GmbH & Co. KG · HRA 1971 Gelsenkirchen · 1991
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Gude Bedachungen GmbH & Co. KG GmbH & Co. KG · HRA 5746 Gelsenkirchen · 2019
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Gustav Rasch Klempner- und Installationsarbeiten Inhaber Reinhold Golembiewski HRA 1395 Gelsenkirchen · 1985
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Johannes Kläsener, Inhaber Gregor Kläsener e.K. e.K. · HRA 4633 Gelsenkirchen · 2010
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Meisterbetrieb Steffens e.K. e.K. · HRA 6408 Gelsenkirchen · 2025
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Optik Kranz & Faude, Inhaber Wolfgang Kranz e.K. · HRA 1238 Gelsenkirchen · 2002
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SiMa Sanierung GmbH GmbH · HRB 19488 Gelsenkirchen · 2024
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Walter & Walter OHG OHG · HRA 4437 Gelsenkirchen · 2009
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All industries in Gelsenkirchen

Live API

GEThandelsregister.ai/api/v1/search-organizations

?limit=20

&filters={"city":"Gelsenkirchen","industry_code":"43.34.2","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": "Gelsenkirchen",
        "industry_code": "43.34.2",
        "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": "Gelsenkirchen",
      "industry_code": "43.34.2",
      "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": "Gelsenkirchen",
        "industry_code": "43.34.2",
        "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":"Gelsenkirchen","industry_code":"43.34.2","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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