Specialised construction activities in civil engineering companies in Braunschweig

Braunschweig ·Currently listed companies in the Specialised construction activities in civil engineering industry headquartered in Braunschweig.

19 companies

Abdichtungstechnik Dohme & Basse GmbH GmbH · HRB 209783 Braunschweig (Brunswick) · 2022
71cc812594…
Bau-König GmbH GmbH · HRB 207614 Braunschweig (Brunswick) · 2019
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Bauunternehmen Weißbrich GmbH GmbH · HRB 211627 Braunschweig (Brunswick) · 2024
0b98c77d6b…
Bauunternehmung Freitag GmbH GmbH · HRB 4991 Braunschweig (Brunswick) · 2000
734e3ff597…
BIBO Saugtechnik GmbH GmbH · HRB 203346 Braunschweig (Brunswick) · 2012
2b22f3c447…
Braunschweiger Gussasphaltbau - KPL - GmbH GmbH · HRB 208176 Braunschweig (Brunswick) · 2019
bacfa6fbc5…
Bruno Jeutes Nachf. GmbH GmbH · HRB 208516 Braunschweig (Brunswick) · 2020
6b2560e7c0…
BS-Bau Engineering GmbH GmbH · HRB 209882 Braunschweig (Brunswick) · 2022
7dcdc6a59f…
DMD-Bauunternehmung GmbH GmbH · HRB 200944 Braunschweig (Brunswick) · 2007
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ESBK Gesellschaft mbH GmbH · HRB 210189 Braunschweig (Brunswick) · 2022
8c6e77affb…
Hetterscheid Bauüberwachung + SiGeKo GmbH GmbH · HRB 211518 Braunschweig (Brunswick) · 2024
bdbd53a67c…
Kienemann Baugesellschaft mbH GmbH · HRB 9222 Braunschweig (Brunswick) · 2002
748f12ef0b…
LK PROJEKT GmbH & Co. KG GmbH & Co. KG · HRA 201490 Braunschweig (Brunswick) · 2014
6feae75057…
MT Hochbau GmbH & Co. KG GmbH & Co. KG · HRA 202491 Braunschweig (Brunswick) · 2020
b3b142e9d9…
Nord Bau NBM GmbH GmbH · HRB 205110 Braunschweig (Brunswick) · 2014
0b21b9cbb1…
R.E. Bauunternehmung GmbH & Co. KG GmbH & Co. KG · HRA 201821 Braunschweig (Brunswick) · 2016
69aa9f2aa2…
RS Bauunternehmen GmbH & Co. KG GmbH & Co. KG · HRA 202036 Braunschweig (Brunswick) · 2017
78a56faf37…
Saust Bauunternehmung GmbH GmbH · HRB 5333 Braunschweig (Brunswick) · 2001
62e6fd7249…
T Bau GmbH GmbH · HRB 5376 Braunschweig (Brunswick) · 2001
8edc27ba43…

All industries in Braunschweig

Live API

GEThandelsregister.ai/api/v1/search-organizations

?limit=20

&filters={"city":"Braunschweig","industry_code":"43.50.0","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": "Braunschweig",
        "industry_code": "43.50.0",
        "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": "Braunschweig",
      "industry_code": "43.50.0",
      "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": "Braunschweig",
        "industry_code": "43.50.0",
        "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":"Braunschweig","industry_code":"43.50.0","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

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