Engineering activities for technical building equipment companies in Monheim am Rhein

Monheim am Rhein ·Currently listed companies in the Engineering activities for technical building equipment industry headquartered in Monheim am Rhein.

31 companies · 1–20 of 31

ascoss GmbH GmbH · HRB 88765 Düsseldorf (Dusseldorf) · 2009
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D & G Building Solution GmbH GmbH · HRB 90640 Düsseldorf (Dusseldorf) · 2020
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E.F. Agentur für technische Dienstleistungen und Arbeitssicherheit UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 109484 Düsseldorf (Dusseldorf) · 2025
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FG Modulbau GmbH GmbH · HRB 110589 Düsseldorf (Dusseldorf) · 2025
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FL Service GmbH GmbH · HRB 101789 Düsseldorf (Dusseldorf) · 2023
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Flow Instruments & Engineering GmbH GmbH · HRB 86816 Düsseldorf (Dusseldorf) · 2004
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FPG - Franke Prüfgesellschaft mbH GmbH · HRB 100445 Düsseldorf (Dusseldorf) · 2023
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FWAE GmbH GmbH · HRB 103164 Düsseldorf (Dusseldorf) · 2012
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Hamm Energietechnische Anlagen GmbH GmbH · HRB 70597 Düsseldorf (Dusseldorf) · 1986
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Hanse-West Gebäudetechnik GmbH GmbH · HRB 100044 Düsseldorf (Dusseldorf) · 2018
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HUG Haus- und Gebäudetechnik UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 94903 Düsseldorf (Dusseldorf) · 2021
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IBD energy & engineering GmbH GmbH · HRB 112006 Düsseldorf (Dusseldorf) · 2026
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IBD sustain GmbH GmbH · HRB 101597 Düsseldorf (Dusseldorf) · 2023
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IEC Energy GmbH GmbH · HRB 82852 Düsseldorf (Dusseldorf) · 2018
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IFB Ingenieurgesellschaft für Fahrzeugtechnik mbH GmbH · HRB 73900 Düsseldorf (Dusseldorf) · 2014
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Ingenieurbüro Peschel GmbH GmbH · HRB 82540 Düsseldorf (Dusseldorf) · 2018
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INNOPEAK GmbH GmbH · HRB 109436 Düsseldorf (Dusseldorf) · 2020
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m-cr concept gmbh GmbH · HRB 86009 Düsseldorf (Dusseldorf) · 2019
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MA & LI Engineering GmbH GmbH · HRB 77743 Düsseldorf (Dusseldorf) · 2015
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Metiscon Consulting & Engineering GmbH GmbH · HRB 112263 Düsseldorf (Dusseldorf) · 2026
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All industries in Monheim am Rhein

Live API

GEThandelsregister.ai/api/v1/search-organizations

?limit=20

&filters={"city":"Monheim am Rhein","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": "Monheim am Rhein",
        "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": "Monheim am Rhein",
      "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": "Monheim am Rhein",
        "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":"Monheim am Rhein","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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