Construction of utility projects for fluids companies in Berlin

Berlin ·Currently listed companies in the Construction of utility projects for fluids industry headquartered in Berlin.

243 companies · 1–20 of 243

030 Berlin Bau UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 286064 Charlottenburg (Berlin) (Berlin) · 2026
0896f6441b…
1461 Bau GmbH GmbH · HRB 189812 Charlottenburg (Berlin) (Berlin) · 2017
b872e16e47…
A & A Projekte GmbH GmbH · HRB 251702 Charlottenburg (Berlin) (Berlin) · 2023
4842d66df0…
A & X Rohbau GmbH GmbH · HRB 219262 Charlottenburg (Berlin) (Berlin) · 2020
781b5b32c1…
A+ Mond Wasser Bau GmbH GmbH · HRB 265030 Charlottenburg (Berlin) (Berlin) · 2024
be4e9bc575…
Abfluss-AS Berlin GmbH GmbH · HRB 214181 Charlottenburg (Berlin) (Berlin) · 2020
c51aec0320…
Abfluss-Schmidt-GmbH GmbH · HRB 68104 Charlottenburg (Berlin) (Berlin) · 2004
809c499d40…
ABO:MAT W & W Haustechnik UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 276252 Charlottenburg (Berlin) (Berlin) · 2025
fa54ce3aa3…
ABYCOM GmbH GmbH · HRB 275076 Charlottenburg (Berlin) (Berlin) · 2025
b5aec8d5b6…
Akkaya Hoch- und Tiefbau GmbH GmbH · HRB 134306 Charlottenburg (Berlin) (Berlin) · 2011
bef6675e63…
AL GHALOWA Europe GmbH GmbH · HRB 173821 Charlottenburg (Berlin) (Berlin) · 2013
f954e940a9…
ALPA-Tec Tief- und Leitungsbau GmbH GmbH · HRB 278786 Charlottenburg (Berlin) (Berlin) · 2025
f8064f5a78…
Alpina Universal Bau GmbH GmbH · HRB 200933 Charlottenburg (Berlin) (Berlin) · 2018
7848ec807e…
Altun KLB UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 247125 Charlottenburg (Berlin) (Berlin) · 2022
cd4e980bfe…
ANX Bau GmbH GmbH · HRB 251855 Charlottenburg (Berlin) (Berlin) · 2023
8a4bc2a9c1…
Ari Netzbau GmbH GmbH · HRB 258304 Charlottenburg (Berlin) (Berlin) · 2023
6644d50bdb…
Arifi Bau GmbH GmbH · HRB 86552 Charlottenburg (Berlin) (Berlin) · 2004
5f72dfee7a…
ARP Bau GmbH GmbH · HRB 284721 Charlottenburg (Berlin) (Berlin) · 2026
2a9f4f6607…
AV - Tiefbau GmbH GmbH · HRB 178032 Charlottenburg (Berlin) (Berlin) · 2016
d0192967b7…
AY NET UG (haftungsbeschränkt) UG (haftungsbeschränkt) · HRB 249590 Charlottenburg (Berlin) (Berlin) · 2023
40ba28159e…

All industries in Berlin

Live API

GEThandelsregister.ai/api/v1/search-organizations

?limit=20

&filters={"city":"Berlin","industry_code":"42.21.0","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": "Berlin",
        "industry_code": "42.21.0",
        "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": "Berlin",
      "industry_code": "42.21.0",
      "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": "Berlin",
        "industry_code": "42.21.0",
        "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":"Berlin","industry_code":"42.21.0","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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