Innside Taxsp. z o.o.
Accounting, bookkeeping and auditing activities; tax consultancy
Overview
Innside Tax provides comprehensive tax advisory services for businesses and individuals, including ongoing support, tax compliance, tax disputes, transfer pricing and transaction advisory. The firm handles accounting books, payments, payroll and HR, and supports financial modelling and financing acquisition, particularly in energy, real estate, manufacturing, e-commerce, healthcare, fintech and technology.
Financials
Revenue history (in k)
Data and insights are generated automatically based on financial statements and may contain errors. This analysis is for informational purposes only and does not constitute an official assessment of the company's credibility or business advice.
Statistics
How the company ranks by revenue within its industry, region and across Poland in 2025.
Results vs industry
Industry
Bank accounts
Registered as a VAT taxpayer on 2023-03-01. Active
61 1050 1025 1000 0090 8478 0759- 22 1050 1025 1000 0090 8189 2995
- 52 1050 1025 1000 0090 8208 8395
Debt
No entries in the National Debtors Register (KRZ). No proceedings in KRZ
Public aid
No public aid cases recorded in the last 10 years.
Tenders
No recorded participation in tenders.
Authorized Representatives
Manner of representation
A member of the management board acting independently is authorized to represent the company.
Ownership
| Owner | Shares | Share value | Stake |
|---|---|---|---|
Bartosz Sankiewicz (42) | 71 | $1,917.88 | 88.75% |
Katarzyna Ewa Sankiewicz (39) | 9 | $243.11 | 11.25% |
Bartosz Sankiewicz and Katarzyna Ewa Sankiewicz hold a combined 100% – the ownership structure indicates family control.
Beneficial owners
| Person | Rights |
|---|---|
Competitors
| Name | Revenue | Website | ||
|---|---|---|---|---|
| Arena Taxsp. z o.o. | $3,507,206.17 | arenatax.pl | ||
| KP Consultingsp. z o.o. | $2,007,258.44 | kpconsulting.pl | ||
| UHY Eca Outsourcingsp. z o.o. | $1,816,023.48 | uhy-pl.com | ||
| BIZ Partnersp. z o.o. | $1,540,918.64 | bizpartner.pl | ||
| Asesores Tax Advisory Spółka Doradztwa Podatkowegosp. z o.o. | $1,126,704.78 | asesores.pl | ||
| ID Advisorysp. z o.o. | $1,103,145.55 | idadvisory.pl | ||
| Małopolski Instytut Studiów Podatkowychsp. z o.o. | $1,009,498.59 | misp-modzelewski.pl | ||
| UHY Eca Taxsp. z o.o. | $746,916.33 | uhy-pl.com | ||
| Kontabl 92sp. z o.o. | $686,547.62 | kontabl.pl | ||
| FOUR Tax Groupsp. k. | $623,535.38 | 4tax.pl |
Change history
| Date | Event | |
|---|---|---|
| 2023-04-03 | Address change (Ul. Mińska 25a/37, 03-808, Warszawa → Ul. Zajęcza 15, 00-351, Warszawa) | |
| 2023-04-03 | Name change (Skip → Innside Tax) | |
| 2022-11-23 | Entered in the register |
FAQ
Last updated: 2026-07-16