Engineering activities for technical building equipment companies in Braunschweig

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

67 companies · 1–20 of 67

A3M-Ingenieurgesellschaft mbH GmbH · HRB 5347 Braunschweig (Brunswick) · 2001
24f88a57ee…
AD Energieberatung GmbH GmbH · HRB 211674 Braunschweig (Brunswick) · 2024
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Agile Optic GmbH GmbH · HRB 207824 Braunschweig (Brunswick) · 2019
d7042dc0d4…
Air Inno GmbH GmbH · HRB 204431 Braunschweig (Brunswick) · 2013
69bace196b…
AVIN System GmbH GmbH · HRB 207572 Braunschweig (Brunswick) · 2019
7fac22bcf6…
BBS Brandschutz GmbH GmbH · HRB 204204 Braunschweig (Brunswick) · 2013
01767759b7…
bbs I martens+puller Ingenieurgesellschaft mbH GmbH · HRB 201695 Braunschweig (Brunswick) · 2009
a495111e3d…
bsp ingenieure GmbH GmbH · HRB 205475 Braunschweig (Brunswick) · 2015
5deeec81af…
Dassow Engineering Industrie- und Gasanlagenbau GmbH GmbH · HRB 210137 Braunschweig (Brunswick) · 2013
5374d90876…
ELT-PLAN ENGINEERING CONSULTING GMBH GmbH · HRB 7491 Braunschweig (Brunswick) · 1984
4f5886bcca…
enco Energie- und Verfahrens-Consult GmbH GmbH · HRB 2683 Braunschweig (Brunswick) · 1988
0256a3e89a…
energydesign braunschweig - Ingenieurgesellschaft für energieeffiziente Gebäude mbH Konzepte - Planung - Betrieb GmbH · HRB 200015 Braunschweig (Brunswick) · 2005
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enrespro GmbH GmbH · HRB 205398 Braunschweig (Brunswick) · 2013
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FEV etamax GmbH GmbH · HRB 4379 Braunschweig (Brunswick) · 1997
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Green Power Engineering GmbH GmbH · HRB 211453 Braunschweig (Brunswick) · 2024
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greenBA GmbH GmbH · HRB 211809 Braunschweig (Brunswick) · 2024
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GWE German Water Engineering GmbH GmbH · HRB 200469 Braunschweig (Brunswick) · 2006
918aee8671…
Gößling Hospitalplanung GmbH GmbH · HRB 202346 Braunschweig (Brunswick) · 2010
67f26d4d1c…
Gößling Morese GmbH GmbH · HRB 207695 Braunschweig (Brunswick) · 2019
5d70f98d84…
HHP Nord/Ost Beratende Ingenieure GmbH GmbH · HRB 2739 Braunschweig (Brunswick) · 1989
d2189fae00…

All industries in Braunschweig

Live API

GEThandelsregister.ai/api/v1/search-organizations

?limit=20

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

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