Engineering activities for technical building equipment companies in Marl

Marl ·Currently listed companies in the Engineering activities for technical building equipment industry headquartered in Marl.

16 companies

BS-Hubert UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 16342 Gelsenkirchen · 2021
4f43da62c9…
C. Jordan Sicherheits-Engineering GmbH GmbH · HRB 16001 Gelsenkirchen · 2013
28a8336e86…
CPS Dienstleistungsgesellschaft mit beschränkter Haftung GmbH · HRB 7890 Gelsenkirchen · 2003
7d997f66ff…
EGT Elektro Gebäudetechnik GmbH GmbH · HRB 9924 Gelsenkirchen · 2009
0072a9de6f…
EMR-Technik Bohne GmbH GmbH · HRB 6057 Gelsenkirchen · 1989
597e91d064…
Eschenfelder Services GmbH GmbH · HRB 14392 Gelsenkirchen · 2018
61ef1e01c4…
FAR Förder- und Anlagentechnik Recklinghausen GmbH GmbH · HRB 12048 Gelsenkirchen · 2002
7256931625…
Franzgrote Engineering UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 16907 Gelsenkirchen · 2022
11d26c8f03…
G3-CAD UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 14100 Gelsenkirchen · 2017
f8d1422e37…
ME Engineering GmbH GmbH · HRB 6003 Gelsenkirchen · 1992
60a6f0822f…
P & R Engineering UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 15650 Gelsenkirchen · 2020
d1923bca66…
PTG Planungsgesellschaft für technische Gebäudeausrüstung mbH GmbH · HRB 6047 Gelsenkirchen · 1991
d06aae0ce6…
Sicherheitsingenieurbüro Schmid GmbH GmbH · HRB 17259 Gelsenkirchen · 2022
f588e22a25…
Signum Feuerschutz GmbH GmbH · HRB 7591 Gelsenkirchen · 2004
71c28723bf…
Technische Beratungs- und Planungs GmbH Ing. Büro für Gebäudeausrüstung und Energiewirtschaft GmbH · HRB 15411 Stendal · 1999
a910795e19…
Technische Prüf- und Beratungsgesellschaft Schmeil mbH GmbH · HRB 15444 Gelsenkirchen · 2008
d6bc7e0188…

All industries in Marl

Live API

GEThandelsregister.ai/api/v1/search-organizations

?limit=20

&filters={"city":"Marl","industry_code":"71.12.3","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": "Marl",
        "industry_code": "71.12.3",
        "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": "Marl",
      "industry_code": "71.12.3",
      "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": "Marl",
        "industry_code": "71.12.3",
        "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":"Marl","industry_code":"71.12.3","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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