active

Stonebase Ventures GmbH GmbHGesellschaft mit beschränkter Haftung

MainzMainz, DEU ·HRB 53757 Mainz

Part 1 / 2

Structured data

Parsed, typed and queryable directly through the API.

Overview

Legal form: GmbH
Address: Lion-Feuchtwanger-Straße 131
55129 Mainz
Commercial register: HRB 53757, Mainz
Registration date: July 19, 2023
Industry: Beteiligungsgesellschaften
Managementtätigkeiten von Holdinggesellschaften mit überwiegend finanziellem Anteilsbesitz
Managementtätigkeiten von sonstigen Holdinggesellschaften
Purpose: Die Gründung und das Ha!ten von Beteiligungen an anderen Unternehmen sowie die Bereitstellung von Finanzmitteln fur diese Unternehmen. Dies umfasst: Die Gründung und Entwicklung von Tochtergesellschaften und verbundenen Unternehmen in verschiedenen Branchen, einschließlich, aber nicht beschränkt auf Finanzdienstleistungen, Technologie, Produktion, Handel und Dienstleistungen. Die Beteiligung als aktiver oder passiver Investor an bestehenden Unternehmen durch den Kauf von Anteilen, Aktien oder anderen Beteiligungsformen. Die Bereitstellung von Finanzmitteln für Unternehmen, an denen das Unternehmen direkt oder indirekt beteiligt ist, sowie die Bereitstellung von Finanzdienstleistungen für diese Unternehmen, soweit dies nicht einer Genehmigung bedarf. Die Durchführung von strategischen und betriebswirtschaftlichen Analysen, Due-Diligence-Prüfungen, Bewertungen und anderen Geschäftsdienstleistungen in Bezug auf potenzielle Investitionen und Beteiligungen. Die Übernahme von Führungs- und Aufsichtsfunktionen in den Unternehmen, an denen Beteiligungen gehalten werden, einschließlich der Bereitstellung von Management- und Beratungsdienstleistungen. Die Anmeldung, Kauf, Verkauf und Lizenzierung von Schutzrechten einschließlich, aber nicht beschränkt auf Markenrechte, Patente und Domains.

Financials

No published key figures are available for this company.

Authorized representatives

Florian Dehnhard since 2025 Managing Director

Ownership & holdings

Shareholders

Christiane Dehnhard 50.0 % 13k €
Florian Dehnhard 50.0 % 13k €

Ultimate beneficial owners (UBOs)

2 hold ≥ 25%

C****** D****** ≥25% 50.0 %

1 more beneficial owners · viewable with an API key Get API key →

Holds shares in

CONSTRUQT GmbH GmbH Mainz, DEU 50.0 %
FALQN Technology UG (haftungsbeschränkt) UG (haftungsbeschränkt) Mainz, DEU 25.0 %
ROQS AI GmbH GmbH Mainz, DEU 20.0 %

History

2025
01.10.

Change of seat

Stonebase Ventures GmbH
01.10.

Change of court

Stonebase Ventures GmbH
01.10.

Change of address

Stonebase Ventures GmbH
01.10.

Register sheet closed

Stonebase Ventures GmbH
06.06.

Change of representation scheme

Ist nur ein Geschäftsführer bestellt, so vertritt er die Gesellschaft allein. Sind mehrere Geschäftsführer bestellt, so wird die Gesellschaft durch zwei Geschäftsführer oder durch einen Geschäftsführer gemeinsam mit einem Prokuristen vertreten.
06.06.

Incorporation

Stonebase Ventures GmbH
06.06.

Change of legal form

Gesellschaft mit beschränkter Haftung
06.06.

Change of address

Stonebase Ventures GmbH

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Part 2 / 2

Raw data & documents

Original filings, full-text markdown and PDFs — full content via the API.

Register documents

PDF documents straight from the court register — fetched on demand via the :code endpoint.

Current extract (AD)
Chronological extract (CD)
Structured content (SI, XML)
Shareholders list
Articles of association

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Website content

Structured markdown rendering of the company's public website — perfect for enrichment and AI pipelines.

Website snapshot (auto-discovered) AI

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Live API

GEThandelsregister.ai/api/v1/fetch-organization

?q=30918a7e573b087cd3e5b4c42950b9ef

&features=related_persons

&features=shareholders

&features=ubos

&features=shareholdings

&features=history

curl -H 'X-API-KEY: YOUR_API_KEY' \
  "https://handelsregister.ai/api/v1/fetch-organization?q=30918a7e573b087cd3e5b4c42950b9ef&features=related_persons&features=shareholders&features=ubos&features=shareholdings&features=history"

# pip install handelsregister
from handelsregister import Handelsregister

client = Handelsregister(api_key="YOUR_API_KEY")  # or set HANDELSREGISTER_API_KEY
organization = client.fetch_organization(
    q="30918a7e573b087cd3e5b4c42950b9ef",
    features=[
        "related_persons",
        "shareholders",
        "ubos",
        "shareholdings",
        "history",
    ],
)
print(organization["name"])

// npm install handelsregister
import { Handelsregister } from 'handelsregister';

const client = new Handelsregister('YOUR_API_KEY'); // or set HANDELSREGISTER_API_KEY
const organization = await client.fetchOrganization({
  q: '30918a7e573b087cd3e5b4c42950b9ef',
  features: [
    'related_persons',
    'shareholders',
    'ubos',
    'shareholdings',
    'history',
  ],
});
console.log(organization.name);

// npm install handelsregister
const { Handelsregister } = require('handelsregister');

const client = new Handelsregister(process.env.HANDELSREGISTER_API_KEY);
(async () => {
  const organization = await client.fetchOrganization({
    q: '30918a7e573b087cd3e5b4c42950b9ef',
    features: [
      'related_persons',
      'shareholders',
      'ubos',
      'shareholdings',
      'history',
    ],
  });
  console.log(organization.name);
})();

{
    "entity_id": "<32-char hex>",
    "name": "<string>",
    "status": "<enum: ACTIVE | INACTIVE>",
    "legal_form": "<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": {
        "court": "<string>",
        "register_type": "<string>",
        "register_number": "<string>"
    },
    "registration_date": "<ISO date>",
    "purpose": "<string>",
    "keywords": [],
    "products_and_services": [],
    "contact_data": {
        "website": null,
        "phone_number": null,
        "email": null
    },
    "industry_classification": {
        "WZ2008": [],
        "WZ2025": [
            {
                "code": "<string>",
                "label": "<string>"
            }
        ]
    },
    "related_persons": {
        "current": [
            {
                "entity_id": "<32-char hex>",
                "label": "<string>",
                "role": {
                    "en": {
                        "long": "<string>",
                        "short": "<string>"
                    },
                    "de": {
                        "long": "<string>",
                        "short": "<string>"
                    }
                },
                "name": "<string>",
                "start_date": "<ISO date>",
                "end_date": null,
                "birth_date": null,
                "name_parts": {
                    "given": "<string>",
                    "family": "<string>",
                    "maiden": null,
                    "canonical_name": "<string>",
                    "previous_names": null
                },
                "location": {
                    "home": {
                        "city": "<string>"
                    }
                }
            }
        ],
        "past": []
    },
    "balance_sheet_accounts": [],
    "ubos": {
        "beneficial_owners": [
            {
                "person": {
                    "entity_id": null,
                    "name": "<string>",
                    "birth_date": null,
                    "name_parts": {
                        "given": "<string>",
                        "family": "<string>"
                    },
                    "location": null
                },
                "ownership_percentage": "<float>",
                "paths": [
                    {
                        "percentage": "<float>",
                        "via": []
                    }
                ]
            }
        ],
        "unresolved_beneficial_owners": [],
        "coverage": {
            "resolved_percentage": "<float>",
            "unresolved_percentage": "<int>"
        }
    },
    "annual_financial_statements__html": [],
    "shareholders": {
        "total_capital": {
            "amount": "<float>",
            "currency": "<ISO currency>"
        },
        "entries": [
            {
                "shareholder": {
                    "entity_id": null,
                    "first_name": "<string>",
                    "last_name": "<string>",
                    "birth_date": null,
                    "address": null
                },
                "contribution": {
                    "amount": "<float>",
                    "currency": "<ISO currency>"
                },
                "contribution_ratio": "<float>",
                "role": {
                    "label": "<string>",
                    "en": {
                        "long": "<string>",
                        "short": "<string>"
                    },
                    "de": {
                        "long": "<string>",
                        "short": "<string>"
                    }
                }
            }
        ]
    },
    "profit_and_loss_account": [],
    "financial_kpi": [],
    "shareholdings": {
        "holdings": {
            "current": [
                {
                    "organization": {
                        "entity_id": "<32-char hex>",
                        "name": "<string>",
                        "status": "<enum: ACTIVE | INACTIVE>",
                        "legal_form": "<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": {
                            "court": "<string>",
                            "register_type": "<string>",
                            "register_number": "<string>"
                        }
                    },
                    "ownership": {
                        "percentage": "<float>",
                        "contribution": {
                            "amount": "<float>",
                            "currency": "<ISO currency>"
                        }
                    },
                    "as_of": "<string>"
                }
            ]
        },
        "summary": {
            "total_current": "<int>"
        }
    },
    "history": [
        {
            "entity_type": "<string>",
            "name": {
                "en": "<string>",
                "de": "<string>"
            },
            "description": {
                "short": {
                    "en": "<string>",
                    "de": "<string>"
                }
            },
            "start_date": "<ISO date>",
            "details": {
                "value": {
                    "coordinate": {
                        "latitude": "<float>",
                        "longitude": "<float>"
                    },
                    "entity_type": "<string>",
                    "formatted_address": "<string>"
                },
                "linked_entities": {
                    "organization": {
                        "name": "<string>"
                    }
                },
                "value_raw": {
                    "@type": "<string>",
                    "value": "<string>"
                }
            }
        }
    ]
}

Base fields

entity_id string

Stable handelsregister.ai identifier (32-char hex string).

name string

Registered legal name of the entity.

status enum

ACTIVE or INACTIVE.

legal_form string

Legal form (GmbH, AG, KG, …) when available.

address object

Postal address with street, house_number, postal_code, city, county, state, country and coordinates.

registration object

registration_date date

Initial entry into the commercial register (ISO date).

purpose string

Stated business purpose (Unternehmensgegenstand).

contact_data object

website, phone_number and email when available.

industry_classification object

Industry codes per WZ2008 and WZ2025 with labels.

keywords array<string>

Keywords derived from the business purpose.

products_and_services array<string>

Product and service descriptions when available.

history array<object>

Chronological log of all register changes (name, seat, capital, representation, …).

features=financial_kpi

financial_kpi array<object>

Per fiscal year: revenue, employees, active_total (balance-sheet total), net_income, material_expenses, personnel_expenses.

features=balance_sheet_accounts

balance_sheet_accounts array<object>

Per fiscal year: hierarchical balance-sheet line items from the published annual statement.

features=profit_and_loss_account

profit_and_loss_account array<object>

Per fiscal year: hierarchical profit-and-loss line items.

features=related_persons

related_persons object

Authorized representatives: { current: [...], past: [...] } — managing directors, board members, signatories.

features=shareholders

shareholders object

Shareholders: { total_capital, entries: [...] }. Each entry carries shareholder, contribution, contribution_ratio and role. total_capital, contribution and contribution_ratio may be null (e.g. for partnerships).

features=ubos

ubos object

Ultimate beneficial owners: { beneficial_owners, unresolved_beneficial_owners, coverage } as recorded in the transparency register.

features=shareholdings

shareholdings object

Stakes this entity holds in others: { holdings: { current: [...] }, summary }. Each holding links another organization by entity_id.

features=publications

publications array<object>

Official commercial-register publications (date, title, full text).

features=annual_financial_statements__html

annual_financial_statements__html array<object>

Published annual statements with document_html (rendered HTML), document_type, document_title, document_date, language and year.

Profile · Financials · People · Documents

Structured data and full text — per company

From annual statements as HTML to UBO lists: enable each field individually via the features parameter. One API, all data.

Key figures Revenue, employee count, total assets, net income — per fiscal year.
Authorized representatives Current and former managing directors, board members, signatories — with roles and date ranges.
Publications Official commercial register publications including date and full text.
Gesellschafter Current shareholder structure with stakes and contributions.
Wirtschaftlich Berechtigte (UBOs) Ultimate beneficial owners as recorded in the German transparency register.
Beteiligungen Stakes this company holds in other entities.
Bilanz Full balance sheet line items from published annual statements.
Gewinn- und Verlustrechnung P&L line items per fiscal year.
Jahresabschlüsse (HTML) Published annual financial statements rendered as HTML.
Insolvenzbekanntmachungen Notices from the official insolvency registers.
News Recent mentions of the company from external news sources.

Unlock every field with an API key Get API key →

Code · AI agents · No-code · Workflows

Plug into any stack

Whether you're building a classical API integration, an AI agent, or a no-code workflow — this data slots in.

REST API Plain GET request with an X-API-KEY header. Works with any HTTP client. Python Works with requests, httpx, or your library of choice. Node.js Standard fetch or axios — no extra SDK required. MCP Server Plug directly into Claude, Cursor, or any MCP-capable AI client. n8n Drop-in custom node for n8n workflow automations. Webhook Callable from Zapier, Make, or any webhook platform.

Use this data in your app

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