
Overview
Sibling is a family-owned company providing legal advice on personal data protection and information security to corporations, listed companies and other businesses. It supports GDPR implementation through legal audits, documentation, consultations and training.
- Monday–Friday
- 7:00–18:00
- Saturday
- 10:00–17:00
Financials
Revenue history (in k)
From the notes
| Current income tax (CIT due) | $1,782 |
Filing timeliness
1 of 6 financial statements was filed late (for 2021, 90 days late).
- 202518/06/2026
- 202402/07/2025
- 202308/07/2024
- 202207/07/2023
- 202113/10/2022
- 202008/07/2021
Data and insights are generated automatically from financial statements – they may contain errors and are neither a credit assessment nor business advice.
Statistics
How the company ranks by revenue within its industry, city, voivodeship and across Poland in 2025.
Results vs industry
Industry
Offer
- Legal audit
- GDPR implementation
- Data protection documentation
- Legal consultations
- Data protection training
Authorized Representatives
Manner of representation
In the case of a one-person management board, the President of the Management Board is authorised individually to represent the company and make declarations concerning the company’s proprietary and non-proprietary rights and obligations and to sign agreements. If a multi-member management board is appointed, two members of the management board acting jointly, including the President of the Management Board, are authorised to represent the company and make declarations concerning the company’s proprietary and non-proprietary rights and obligations and to sign agreements.
Ownership
| Owner | Shares | Share value | Stake |
|---|---|---|---|
Krzysztof Piotr Nowakage 46 | 96 | $1,296.60 | 96% |
Others | 4 | $54.02 | 4% |
Beneficial owners
| Person | Rights |
|---|---|
Debt
No entries in the National Debtors Register (KRZ).
Public aid
| Grant date | Purpose | Gross amount | Granting body | |
|---|---|---|---|---|
| Mar 18, 2021 | Aid compensating for the negative economic consequences of COVID-19, granted in limited amounts | $1,294$1,294 | Prezydent Wrocławia |
Competitors
| Name | Revenue | Website | ||
|---|---|---|---|---|
| DK Doradztwosp. z o.o. | $61,526.87 | dk-doradztwo.pl | ||
| Proczeksp. z o.o. | $32,571.65 | proczek.pl |
FAQ
Last updated: 2026-06-22
