Business and other management consultancy activities companies in Siegen

Siegen ·Currently listed companies in the Business and other management consultancy activities industry headquartered in Siegen.

17 companies

8P Consulting GmbH GmbH · HRB 8993 Siegen · 2009
d352664d8d…
Avenir Beyond GmbH GmbH · HRB 11401 Siegen · 2017
6781ca19a8…
BEAGON Verwaltungsgesellschaft mbH GmbH · HRB 3154 Siegen · 1987
5c1634d0be…
Becker Consulting UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 13841 Siegen · 2024
d58c168a19…
BeOK GmbH GmbH · HRB 5605 Siegen · 2002
a35dcef508…
Bseventyseven GmbH GmbH · HRB 13092 Siegen · 2022
f972b513e1…
C3 GmbH GmbH · HRB 2250 Siegen · 1980
0bf67a4734…
D & H Unternehmensberatung GmbH GmbH · HRB 13564 Siegen · 2023
3b8fef71c4…
D & K Consultants GmbH, Unternehmens- und Personalberatung GmbH · HRB 4414 Siegen · 1995
7eb7a5d5a9…
Finanzprofi. GmbH, Unternehmensberatung GmbH · HRB 8430 Siegen · 2007
33107e8816…
Hellenic Services GmbH GmbH · HRB 13880 Siegen · 2005
4763bca12d…
Höber UnternehmungsberatungsgeselIschaft mbH GmbH · HRB 3927 Siegen · 1992
24c1a5926d…
profilconsult Gesellschaft für Unternehmens- und Personalberatung mit beschränkter Haftung GmbH · HRB 3294 Siegen · 1988
aed924985b…
Revolution Consulting UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 12408 Siegen · 2020
cf3fd383a0…
TL Unternehmensberatungsgesellschaft mbH GmbH · HRB 3938 Siegen · 1992
813a07408f…
VISIONNEU Business Consulting Group GmbH GmbH · HRB 14125 Siegen · 2025
71904f50c0…
Walter Consulting Unternehmergesellschaft (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 10092 Siegen · 2013
35551490d5…

All industries in Siegen

Live API

GEThandelsregister.ai/api/v1/search-organizations

?limit=20

&filters={"city":"Siegen","industry_code":"70.20.0","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": "Siegen",
        "industry_code": "70.20.0",
        "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": "Siegen",
      "industry_code": "70.20.0",
      "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": "Siegen",
        "industry_code": "70.20.0",
        "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":"Siegen","industry_code":"70.20.0","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