Development of building projects for residential buildings companies in Weimar

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

38 companies · 1–20 of 38

B+B Grundbesitz eGbR eGbR · GsR 79 Wetzlar · 2024
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B19 Immobilien eGbR eGbR · GsR 372 Jena · 2024
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Baumhaus-Projekt GmbH GmbH · HRB 510674 Jena · 2014
8f13c06fda…
BPS Bau und Projektsteuerungs GmbH GmbH · HRB 511745 Jena · 2015
df04f9f0d1…
C-Flooring System UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 517799 Jena · 2021
5a18bf6ade…
DLW Projekt GmbH GmbH · HRB 521368 Jena · 2023
3dcf965698…
Dresdener Consulting Company GmbH GmbH · HRB 511106 Jena · 1990
fa324b0ac2…
Euphoria I GmbH GmbH · HRB 510167 Jena · 2014
b25f80cf95…
Finanz-Immobilien-Service 2009 UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 504707 Jena · 2009
2fd801d75c…
Gartenstadt Weimar Projekt GmbH & Co. KG GmbH & Co. KG · HRA 507213 Jena · 2025
ba4eee8888…
Goldmund Projekte GmbH GmbH · HRB 511295 Jena · 2015
a0172b7c77…
Grundstücksgesellschaft Am Burgplatz eGbR eGbR · GsR 674 Jena · 2025
57e62c97ae…
Handwerksbau AG Thüringen Wohnungsgesellschaft Weimar AG · HRB 106133 Jena · 1993
ed21f95a7e…
Hartung & Ludwig Projektentwicklungs- und Baugesellschaft mbH GmbH · HRB 512609 Jena · 2016
c01a039519…
Helm + Hartmann Grundstücksentwicklungsgesellschaft 1 Erfurter Straße 68 eGbR eGbR · GsR 886 Jena · 2025
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Helm + Hartmann Grundstücksentwicklungsgesellschaft 2 Washingtonstraße 35 eGbR eGbR · GsR 885 Jena · 2025
a578f3f425…
igb Konzept AG AG · HRB 510061 Jena · 2014
7603c26372…
M + B MASSIVBAU GmbH GmbH · HRB 109122 Jena · 1996
f19b761611…
nplus GmbH Projektentwicklung, Projektsteuerung, Planung GmbH · HRB 523176 Jena · 2025
8bde7a1b44…
passivhaus-weimar.de gmbh GmbH · HRB 111487 Jena · 2000
c7c7fea158…

All industries in Weimar

Live API

GEThandelsregister.ai/api/v1/search-organizations

?limit=20

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