Casting of grey iron companies in Siegen

Siegen ·Currently listed companies in the Casting of grey iron industry headquartered in Siegen.

22 companies · 1–20 of 22

Becker und Gehrmann GmbH & Co. KG GmbH & Co. KG · HRA 3455 Siegen · 1942
506f6d5163…
Birlenbach Feuerverzinkerei GmbH & Co. KG GmbH & Co. KG · HRA 3563 Siegen · 1951
3ef5275d83…
Bügener eGbR eGbR · GsR 66 Siegen · 2024
7517565fce…
c-cn Siegen GmbH & Co. KG GmbH & Co. KG · HRA 6343 Siegen · 2001
c53d49a7db…
Christian Acker Metallspritztechnik Inhaber Wolfgang Acker e.K. e.K. · HRA 3465 Siegen · 1958
26ba180678…
Duwenhögger GmbH + Co. KG GmbH & Co. KG · HRA 3531 Siegen · 1950
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Erich Arens GmbH & Co.KG GmbH & Co. KG · HRA 3625 Siegen · 1955
668081ce92…
Erich Schäfer GmbH & Co.KG GmbH & Co. KG · HRA 3914 Siegen · 1957
2fbbde6013…
Gebrüder Kiel GmbH & Co.KG GmbH & Co. KG · HRA 3125 Siegen · 1938
ce6898f7a2…
Gros und Zimmermann GmbH & Co. KG GmbH & Co. KG · HRA 4035 Siegen · 1960
27b042a135…
Gustav Schütz GmbH & Co. KG GmbH & Co. KG · HRA 5652 Siegen · 1986
576a31dfe0…
Hermann Gräf GmbH & Co. KG GmbH & Co. KG · HRA 5436 Siegen · 1982
8e5b84601b…
Hübinger GmbH & Co.KG GmbH & Co. KG · HRA 3873 Siegen · 1930
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Karl Buch Walzengiesserei GmbH & Co. KG GmbH & Co. KG · HRA 3190 Siegen · 1954
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Kassel GmbH & Co. KG GmbH & Co. KG · HRA 4203 Siegen · 1964
ae7524bb86…
Kassen Stracke GmbH & Co. KG GmbH & Co. KG · HRA 8682 Siegen · 2012
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Klein Eisen- und Blechverarbeitungs GmbH & Co. KG GmbH & Co. KG · HRA 8078 Siegen · 2007
412e71593b…
Paul Weisgerber Inh. Jochen Weisgerber e.K. e.K. · HRA 9383 Siegen · 2018
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Wagener GmbH & Co. KG GmbH & Co. KG · HRA 3388 Siegen · 1919
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Walter Leipold GmbH & Co. KG GmbH & Co. KG · HRA 3040 Siegen · 1961
a078aa9766…

All industries in Siegen

Live API

GEThandelsregister.ai/api/v1/search-organizations

?limit=20

&filters={"city":"Siegen","industry_code":"24.51.1","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": "Siegen",
        "industry_code": "24.51.1",
        "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": "Siegen",
      "industry_code": "24.51.1",
      "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": "Siegen",
        "industry_code": "24.51.1",
        "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":"Siegen","industry_code":"24.51.1","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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