Development of building projects for residential buildings companies in Iserlohn

Iserlohn ·Currently listed companies in the Development of building projects for residential buildings industry headquartered in Iserlohn.

38 companies · 1–20 of 38

Bautrend Ausführungs- und Koordinations GmbH GmbH · HRB 2382 Iserlohn · 2000
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Brück Grundbesitz eGbR eGbR · GsR 205 Iserlohn · 2025
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Concept Bau-Fläming Fiener GmbH GmbH · HRB 10548 Iserlohn · 1999
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Die WohnProjekt GmbH GmbH · HRB 9403 Iserlohn · 2019
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EWG Immobilien- und Beteiligungs oHG OHG · HRA 5815 Iserlohn · 2006
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Grundstücksgesellschaft Alexa Peters Wandhofen eGbR eGbR · GsR 307 Iserlohn · 2026
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Grundstücksgesellschaft Andrea Peters Wandhofen eGbR eGbR · GsR 306 Iserlohn · 2026
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Grundstücksgesellschaft Laura Peters Wandhofen eGbR eGbR · GsR 308 Iserlohn · 2026
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Grundstücksgesellschaft Obere Mühle 32 eGbR eGbR · GsR 3 Iserlohn · 2024
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Grundstücksgesellschaft Peters Schützenstraße eGbR eGbR · GsR 88 Iserlohn · 2024
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Grundstücksgesellschaft Stennerstraße 8 eGbR eGbR · GsR 256 Iserlohn · 2025
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HPB Grundstücksgesellschaft mbH & Co. KG GmbH & Co. KG · HRA 5424 Iserlohn · 2020
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Immobilien BT JT eGbR eGbR · GsR 68 Iserlohn · 2024
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Immobilien Letmathe eGbR eGbR · GsR 315 Iserlohn · 2026
e45b3d2e96…
Lange und Brockötter Immobilien eGbR GbR · GsR 8 Iserlohn · 2024
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Lewe Immobilien UG (haftungsbeschränkt) & Co. KG KG · HRA 5415 Iserlohn · 2020
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Luma Grundstücksgesellschaft UG (haftungsbeschränkt) & Co. KG UG (haftungsbeschränkt) & Co. KG · HRA 5480 Iserlohn · 2021
69e6d9b540…
Luxovia GmbH GmbH · HRB 11210 Iserlohn · 2025
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Märkische Bau- und Wohnen GmbH & Co. KG GmbH & Co. KG · HRA 4743 Iserlohn · 2011
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Neue Wohnungsbau GmbH GmbH · HRB 1943 Iserlohn · 1996
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All industries in Iserlohn

Live API

GEThandelsregister.ai/api/v1/search-organizations

?limit=20

&filters={"city":"Iserlohn","industry_code":"68.12.2","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": "Iserlohn",
        "industry_code": "68.12.2",
        "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": "Iserlohn",
      "industry_code": "68.12.2",
      "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": "Iserlohn",
        "industry_code": "68.12.2",
        "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":"Iserlohn","industry_code":"68.12.2","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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