Engineering activities for technical building equipment companies in Hannover

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

113 companies · 81–100 of 113

PCAE Gesellschaft für Programmvertrieb und Computer Aided Engineering mbH GmbH · HRB 2106 Hannover (Hanover) · 1985
068f8da6aa…
PFE Planungsgesellschaft für Elektrotechnik mbH GmbH · HRB 203153 Hannover (Hanover) · 2008
d77f7c5698…
Planungsbüro für Photovoltaikanlagen GmbH GmbH · HRB 205537 Hannover (Hanover) · 2010
9924784151…
Planungsbüro Rauck GmbH GmbH · HRB 52127 Hannover (Hanover) · 1990
57f096a908…
Planungsgruppe VA Consultants GmbH GmbH · HRB 211969 Hannover (Hanover) · 2011
974e4d8652…
Planungsgruppe VA GmbH GmbH · HRB 54904 Hannover (Hanover) · 1995
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Polyvera GmbH GmbH · HRB 211418 Hannover (Hanover) · 2014
4d81b6f6b4…
Process Digital Insights GmbH GmbH · HRB 213770 Hannover (Hanover) · 2016
668402092e…
Prof. Michael Lange Ingenieurgesellschaft mbH GmbH · HRB 62247 Hannover (Hanover) · 2005
625d2d64b2…
PrüfSachVerstand UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 225228 Hannover (Hanover) · 2023
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PWR Wasser und Rohrtechnik GmbH GmbH · HRB 51394 Hannover (Hanover) · 1950
6b15ce348a…
R & W Energieexperten GmbH GmbH · HRB 212283 Hannover (Hanover) · 2015
1953fb9abb…
REKA Energy GmbH GmbH · HRB 228826 Hannover (Hanover) · 2025
621c57a282…
Royal Energie GmbH GmbH · HRB 224488 Hannover (Hanover) · 2020
59e3e98973…
Royal Industrie UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 228236 Hannover (Hanover) · 2024
a95d166ecd…
Sachverständigenbüro Peuker GmbH GmbH · HRB 229972 Hannover (Hanover) · 2025
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SEADO Engineering GmbH GmbH · HRB 225962 Hannover (Hanover) · 2023
add80d81de…
seismion GmbH GmbH · HRB 222091 Hannover (Hanover) · 2021
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SPIE Information & Communication Services GmbH GmbH · HRB 77705 Düsseldorf (Dusseldorf) · 2016
8141007111…
Sprengel, Pröve und Partner Ingenieurgesellschaft mbH GmbH · HRB 206280 Hannover (Hanover) · 2010
b5320a3b13…

All industries in Hannover

Live API

GEThandelsregister.ai/api/v1/search-organizations

?limit=20

&skip=80

&filters={"city":"Hannover","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": "Hannover",
        "industry_code": "71.12.3",
        "industry_scheme": "WZ2025"
    },
    limit=20,
    skip=80,
)
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": "Hannover",
      "industry_code": "71.12.3",
      "industry_scheme": "WZ2025"
  },
  limit: 20,
  skip: 80,
});
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": "Hannover",
        "industry_code": "71.12.3",
        "industry_scheme": "WZ2025"
    },
    limit: 20,
    skip: 80,
  });
  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&skip=80' \
  -H 'x-api-key: YOUR_API_KEY' \
  -G --data-urlencode 'filters={"city":"Hannover","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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