Engineering activities for technical building equipment companies in Hagen

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

18 companies

Dipl.-Ing. Christoph Scheele GmbH GmbH · HRB 10035 Hagen · 2004
f270cfbb3f…
E-Plan Bauunternehmen UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 12853 Hagen · 2023
0dece4f74d…
E.A.S. Entertainment - Arts Services UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 252009 Charlottenburg (Berlin) (Berlin) · 2023
71bc28cb26…
Energy Oase Ingenieurbüro GmbH GmbH · HRB 13116 Hagen · 2023
e1019d634a…
EnerTech Facility GmbH GmbH · HRB 13727 Hagen · 2025
2e1587b6eb…
FeBau Unternehmergesellschaft (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 8060 Hagen · 2009
83a51f9fed…
G-EAS GmbH GmbH · HRB 10847 Hagen · 2018
7f72dda81b…
HagenGe GmbH GmbH · HRB 13070 Hagen · 2024
9fc5c4a02f…
HEC Hodinar Engineering Consulting UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 11578 Hagen · 2020
6cdb9d1ec7…
Ingenieurbüro M. Kleesattel Consult GmbH GmbH · HRB 4447 Hagen · 2003
230c3470ff…
K + S Gebäudetechnik GmbH Sanitär-, Heizung- Lüftung-, Klima-Regelungstechnik GmbH · HRB 3149 Hagen · 1995
a92f15997d…
Meyer-Hagen Brandschutzingenieure GmbH GmbH · HRB 13491 Hagen · 2025
64a7389e7a…
Meyer-Hagen Gesellschaft für Brandschutz- und Notfallvorsorge mbH GmbH · HRB 12263 Hagen · 2022
8361ea4aee…
NESTEC Building Solutions GmbH GmbH · HRB 10367 Hagen · 2016
0dbebbed05…
Norpoth Ingenieure GmbH GmbH · HRB 12413 Hagen · 2022
b9b8043390…
Planungsbüro Hagen-Westerbauer GmbH GmbH · HRB 10692 Hagen · 2002
97d72e13df…
SNT GmbH GmbH · HRB 9158 Hagen · 2012
7179cc8510…
tegeba GmbH GmbH · HRB 10962 Hagen · 2018
cc8f30ba08…

All industries in Hagen

Live API

GEThandelsregister.ai/api/v1/search-organizations

?limit=20

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

Cookie Settings

Customize Cookie Settings