active

OpenSource Security GmbH GmbH

Steinfurt ·HRB 12044 Steinfurt

Part 1 / 2

Structured data

Parsed, typed and queryable directly through the API.

Overview

Legal form: GmbH
Address: Am Bahnhof 3-5
48565 Steinfurt
Commercial register: HRB 12044, Steinfurt
Registration date: June 7, 2018
Industry: Erbringung von Beratungsleistungen auf dem Gebiet der Informationstechnologie
Erbringung von sonstigen Dienstleistungen der Informationstechnologie
Erbringung von sonstigen Informationsdienstleistungen
Purpose: Beratung, die Schulung und der Verkauf von IT-Produkten aller Art, insbesondere im Bereich der IT-Sicherheit.

Financials

Employees 2024

Total assets 2024

995.149 €

Net income 2024

347.788 €

4 previous years · values unlocked with an API key Get API key →

Balance sheet

2024

Assets 995,1 k

Current Assets 96,9 % 964,0 k
Fixed Assets 2,5 % 25,1 k
Prepaid Expenses 0,6 % 6,0 k

Liabilities and Equity 995,1 k

Equity 80,7 % 803,5 k
Liabilities 10,3 % 102,9 k
Provisions 8,9 % 88,7 k

Full balance sheet line items with an API key Get API key →

Balance sheet data available for 4 earlier fiscal years.

Authorized representatives

Hendrik Schwartke since 2018 Managing Director
Ralf Spenneberg since 2018 Managing Director
Claudia Spenneberg since 2018 Procura

Ownership & holdings

Shareholders

Ralf Spenneberg 80.0 % 20k €
H****** S****** 20.0 % 5k €

Ultimate beneficial owners (UBOs)

1 hold ≥ 25%

R*** S****** ≥25% 80.0 %

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

History

2018
26.07.

Correction of personal data

Ralf Spenneberg · Managing Director
25.07.

Change of purpose

Beratung, die Schulung und der Verkauf von IT-Produkten aller Art, insbesondere im Bereich der IT-Sicherheit.
25.07.

Change of share capital

OpenSource Security GmbH
25.07.

Change of legal form

Gesellschaft mit beschränkter Haftung
25.07.

Member entry

Ralf Spenneberg · Managing Director
25.07.

Change of bylaws

OpenSource Security GmbH
25.07.

Change of seat

OpenSource Security GmbH
25.07.

Change of company name

OpenSource Security GmbH

5 more entries Get API key →

Part 2 / 2

Raw data & documents

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

Annual statements (full text)

Published reports as markdown — including management report, balance sheet, P&L and appendix.

2024 Jahresabschluss
2023 Jahresabschluss ↓
2022 Jahresabschluss
2021 Jahresabschluss
2020 Jahresabschluss

Previous year — readable in full

Jahresabschluss 2023

Published April 3, 2025 · Source: Bundesanzeiger

OpenSource Security GmbH

Steinfurt

Jahresabschluss zum Geschäftsjahr vom 01.01.2023 bis zum 31.12.2023

Bilanz

Aktiva
	31.12.2023 EUR	31.12.2022 EUR
A. Anlagevermögen	34.282,00	44.236,00
I. Sachanlagen	34.282,00	44.236,00
B. Umlaufvermögen	707.466,66	505.749,53
I. Forderungen und sonstige Vermögensgegenstände	106.417,63	107.279,28
II. Kassenbestand, Bundesbankguthaben, Guthaben bei Kreditinstituten und Schecks	601.049,03	398.470,25
C. Rechnungsabgrenzungsposten	4.802,61	4.802,61
Aktiva	746.551,27	554.788,14

Passiva
	31.12.2023 EUR	31.12.2022 EUR
A. Eigenkapital	605.727,22	461.637,88
I. Gezeichnetes Kapital	25.000,00	25.000,00
II. Kapitalrücklage	45.000,00	45.000,00
III. Gewinnvortrag	341.637,88	285.408,70
IV. Jahresüberschuss	194.089,34	106.229,18
B. Rückstellungen	50.232,52	7.100,00
C. Verbindlichkeiten	90.591,53	86.050,26
davon mit einer Restlaufzeit bis zu einem Jahr	48.547,28	22.627,35
davon mit einer Restlaufzeit von mehr als einem Jahr	42.044,25	63.422,91
davon gegenüber Gesellschaftern	42.044,25	59.422,91
Summe Passiva	746.551,27	554.788,14

Anhang

Allgemeine Angaben zum Jahresabschluss

Der Jahresabschluss wurde nach den Vorschriften der §§ 242 ff. HGB unter der Beachtung der ergänzenden Bestimmungen für kleine Kapitalgesellschaften aufgestellt.

Angaben zur Identifikation der Gesellschaft laut Registergericht

Firmenname laut Registergericht:	OpenSource Security GmbH
Firmensitz laut Registergericht:	Steinfurt
Registereintrag:	Handelsregister
Registergericht:	Steinfurt
Register-Nr.:	12044

Bilanzierungs- und Bewertungsgrundsätze

Erworbene immaterielle Anlagewerte wurden zu Anschaffungskosten angesetzt und, sofern sie der Abnutzung unterlagen, um planmäßige Abschreibungen vermindert.

Das Sachanlagevermögen wurde zu Anschaffungs- bzw. Herstellungskosten angesetzt und, soweit abnutzbar, um planmäßige Abschreibungen vermindert.

Die planmäßigen Abschreibungen wurden nach der voraussichtlichen Nutzungsdauer der Vermögensgegenstände linear und degressiv vorgenommen.

Forderungen und Wertpapiere wurden unter Berücksichtigung aller erkennbaren Risiken bewertet.

Die sonstigen Rückstellungen wurden für alle weiteren ungewissen Verbindlichkeiten gebildet. Dabei wurden alle erkennbaren Risiken berücksichtigt.

Verbindlichkeiten wurden zum Erfüllungsbetrag angesetzt.

Gegenüber dem Vorjahr abweichende Bilanzierungs- und Bewertungsmethoden

Beim Jahresabschluss konnten die bisher angewandten Bilanzierungs- und Bewertungsmethoden im Wesentlichen übernommen werden.

Angaben zur Bilanz

Betrag der Verbindlichkeiten mit einer Restlaufzeit > 5 Jahre und der Sicherungsrechte

Art der Verbindlichkeit zum	Gesamtbetrag	davon mit einer Restlaufzeit
31.12.2023		kleiner 1 J.	1 bis 5 J.	größer 5 J.
	TEUR	TEUR	TEUR	TEUR
gegenüber Gesellschaftern	42,0	18,0	24,0	0,0
sonstige Verbindlichkeiten	48,50	48,5	0,0	0,0
Summe	90,5	66,5	24,00	0,0

Sonstige Angaben

Durchschnittliche Zahl der während des Geschäftsjahrs beschäftigten Arbeitnehmer

Die durchschnittliche Zahl der während des Geschäftsjahres im Unternehmen beschäftigten Arbeitnehmer betrug 7.

Geschäftsführer
Zu Geschäftsführern waren im Geschäftsjahr 2023
Herr Ralf Spenneberg, Steinfurt
und
Hendrik Schwartke, Steinfurt, bestellt.

Unterschrift der Geschäftsführung

Steinfurt, den 27.11.2024	R.Spenneberg
Ort, Datum	Unterschrift

sonstige Berichtsbestandteile

Angaben zur Feststellung:
Der Jahresabschluss wurde am 27.11.2024 festgestellt.

Latest filings and full-volume access to every fiscal year. Get API key →

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

Unlock with API key Get API key →

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=d503ec4655847f53ed1d4f4038b546b9

&features=financial_kpi

&features=balance_sheet_accounts

&features=related_persons

&features=shareholders

&features=ubos

&features=history

&features=annual_financial_statements__html

curl -H 'X-API-KEY: YOUR_API_KEY' \
  "https://handelsregister.ai/api/v1/fetch-organization?q=d503ec4655847f53ed1d4f4038b546b9&features=financial_kpi&features=balance_sheet_accounts&features=related_persons&features=shareholders&features=ubos&features=history&features=annual_financial_statements__html"

# pip install handelsregister
from handelsregister import Handelsregister

client = Handelsregister(api_key="YOUR_API_KEY")  # or set HANDELSREGISTER_API_KEY
organization = client.fetch_organization(
    q="d503ec4655847f53ed1d4f4038b546b9",
    features=[
        "financial_kpi",
        "balance_sheet_accounts",
        "related_persons",
        "shareholders",
        "ubos",
        "history",
        "annual_financial_statements__html",
    ],
)
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: 'd503ec4655847f53ed1d4f4038b546b9',
  features: [
    'financial_kpi',
    'balance_sheet_accounts',
    'related_persons',
    'shareholders',
    'ubos',
    'history',
    'annual_financial_statements__html',
  ],
});
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: 'd503ec4655847f53ed1d4f4038b546b9',
    features: [
      'financial_kpi',
      'balance_sheet_accounts',
      'related_persons',
      'shareholders',
      'ubos',
      'history',
      'annual_financial_statements__html',
    ],
  });
  console.log(organization.name);
})();

{
    "entity_id": "<32-char hex>",
    "name": "<string>",
    "status": "<enum: ACTIVE | TERMINATED | DISSOLVED | INSOLVENT>",
    "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>"
            }
        ]
    },
    "profit_and_loss_account": [],
    "annual_financial_statements__html": [
        {
            "document_type": "<string>",
            "document_date": "<ISO date>",
            "document_title": "<string>",
            "language": "<string>",
            "year": "<int>",
            "document_html": "<string>"
        }
    ],
    "shareholders": {
        "total_capital": {
            "amount": "<float>",
            "currency": "<ISO currency>"
        },
        "entries": [
            {
                "shareholder": {
                    "entity_id": "<32-char hex>",
                    "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>"
                    }
                }
            }
        ],
        "history": null
    },
    "shareholdings": null,
    "ubos": {
        "beneficial_owners": [
            {
                "person": {
                    "entity_id": "<32-char hex>",
                    "name": "<string>",
                    "birth_date": null,
                    "name_parts": {
                        "given": "<string>",
                        "family": "<string>",
                        "canonical_name": "<string>"
                    },
                    "location": {
                        "home": {
                            "city": "<string>",
                            "county": "<string>",
                            "state": "<string>",
                            "country": "<ISO country>"
                        }
                    }
                },
                "ownership_percentage": "<float>",
                "paths": [
                    {
                        "percentage": "<float>",
                        "via": []
                    }
                ]
            }
        ],
        "unresolved_beneficial_owners": [],
        "coverage": {
            "resolved_percentage": "<float>",
            "unresolved_percentage": "<int>"
        }
    },
    "representation_scheme": {
        "current": [
            "<string>"
        ],
        "history": [
            {
                "value": [
                    "<string>"
                ],
                "effective_from": "<string>",
                "effective_to": null
            }
        ]
    },
    "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>"
                    }
                },
                "organization_representation_scheme": {
                    "current": [
                        "<string>"
                    ],
                    "history": [
                        {
                            "value": [
                                "<string>"
                            ],
                            "effective_from": "<string>",
                            "effective_to": null
                        }
                    ]
                },
                "role_representation_scheme": {
                    "current": [
                        "<string>"
                    ],
                    "history": [
                        {
                            "value": [
                                "<string>"
                            ],
                            "effective_from": "<string>",
                            "effective_to": null
                        }
                    ]
                }
            }
        ],
        "past": []
    },
    "balance_sheet_accounts": [
        {
            "year": "<int>",
            "balance_sheet_accounts": [
                {
                    "name": {
                        "de": "<string>",
                        "en": "<string>",
                        "in_report": "<string>"
                    },
                    "value": "<float>",
                    "children": [
                        {
                            "name": {
                                "de": "<string>",
                                "en": "<string>",
                                "in_report": "<string>"
                            },
                            "value": "<float>",
                            "children": [
                                {
                                    "name": {
                                        "de": "<string>",
                                        "en": "<string>",
                                        "in_report": "<string>"
                                    },
                                    "value": "<float>",
                                    "children": []
                                }
                            ]
                        }
                    ]
                }
            ]
        }
    ],
    "financial_kpi": [
        {
            "year": "<int>",
            "employees": "<int>",
            "active_total": "<float>",
            "revenue": null,
            "material_expenses": null,
            "personnel_expenses": null,
            "net_income": "<float>"
        }
    ],
    "capital": {
        "current": {
            "amount": "<float>",
            "currency": "<ISO currency>",
            "kind": "<string>"
        },
        "history": [
            {
                "value": {
                    "amount": "<float>",
                    "currency": "<ISO currency>",
                    "kind": "<string>"
                },
                "effective_from": "<string>",
                "effective_to": null
            }
        ]
    },
    "history": [
        {
            "entity_type": "<string>",
            "name": {
                "en": "<string>",
                "de": "<string>"
            },
            "description": {
                "short": {
                    "en": "<string>",
                    "de": "<string>"
                }
            },
            "start_date": "<ISO date>",
            "details": {
                "value": "<string>",
                "linked_entities": {
                    "organization": {
                        "name": "<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, TERMINATED, DISSOLVED or INSOLVENT.

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).

representation_scheme object

General representation scheme: { current: [...], history: [...] } with effective_from/effective_to per version.

capital object

Registered capital: { current, history }. current carries amount, currency and kind (STAMMKAPITAL, GRUNDKAPITAL, HAFTSUMME, GENEHMIGTES_KAPITAL, BEDINGTES_KAPITAL, VARIABLES_KAPITAL — open enum); each history entry has value, effective_from and effective_to (null = still in force). change_amount on a history entry is unsigned and does not always equal the difference between two consecutive amounts, so derive increases and decreases from the amounts. Partnerships and other entities without registered capital return current: null and an empty history.

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. Each person carries organization_representation_scheme and role_representation_scheme (current scheme + history).

features=shareholders

shareholders object

Shareholders: { total_capital, entries: [...], history: { current_as_of, past: [...] } }. Each entry carries shareholder, contribution, contribution_ratio and role; history.past delivers previous shareholder lists with an as_of date. 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.

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