What is the main business of Sinex Biuro Rachunkowe?

The main business activity of Sinex Biuro Rachunkowe focuses on accounting, bookkeeping and auditing activities; tax consultancy.

When was the company founded?

The company was registered in the Polish National Court Register (KRS) on June 7, 2024.

Where is the headquarters located?

The headquarters is located at: ul. Jana Kochanowskiego 49, 01-864 Warszawa.

Who is on the management board?

The management board consists of: Aldona Jolanta Grabowska (President of the Management Board) and Marcin Kiljański (Member of the Management Board).

What is the share capital?

The share capital of the company is PLN 5,000 (approx. $1,351).

What period do the latest financial data cover?

The latest available financial statement covers the period from January 1, 2025 to December 31, 2025.

What was the revenue?

The company reported a revenue of $40,713 in 2025, which is an increase of 56.7% compared to 2024.

Is the company profitable?

Yes, in 2025 the company was profitable, achieving a net profit of $1,220, meaning the company decreased its profit by 71.4%.

Sinex Biuro Rachunkowesp. z o.o.

Accounting, bookkeeping and auditing activities; tax consultancy

KRS: NIP: REGON:

Overview

Status

Active

Registry date

2024-06-07

Share capital

5,000.00 PLN

Registered address

ul. Jana Kochanowskiego 49/301, 01-864 Warszawa, Poland

Website

sinex.pl

Phone

Electronic delivery address

AE:PL-92588-55439-HUSTH-22

Financials

Revenue history (in k)

From the notes

Current income tax (CIT due)

$178

Filing timeliness

1 of 2 financial statements was filed late (for 2025, 1 day late).

202516/07/2026
202411/07/2025

Filed on timeDelayFiling deadline

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, region and across Poland in 2025.

Results vs industry

Revenue

This companyUSD 40.71kMedianUSD 82.54kAverageUSD 480.30k

Net profit

This companyUSD 1.22kMedianUSD 6.27kAverageUSD 42.84k

Operating costs

This companyUSD 39.31kMedianUSD 69.72kAverageUSD 419.77k

Assets

This companyUSD 2.79kMedianUSD 46.59kAverageUSD 356.98k

Industry

Accounting, bookkeeping and auditing activities; tax consultancy (69.20.Z)Primary

Offer

Bookkeeping
Revenue and expense ledger services
Lump-sum tax records
Tax accounting
Personnel administration
Payroll services

Authorized Representatives

Aldona Jolanta Grabowska – President of the Management Board

Marcin Kiljański – Management Board Member

Manner of representation

Each member of the management board is authorized to make declarations on behalf of the company independently.

Ownership

Owner	Shares	Share value	Stake
Aldona Jolanta Grabowskaage 52	50	$675.31	50%
Marcin Kiljańskiage 52	50	$675.31	50%

Beneficial owners

Person	Rights

Debt

No entries in the National Debtors Register (KRZ).

Public aid

No public aid cases recorded in the last 10 years.

Competitors

Name	Revenue	Website
Fidendo Outsourcingsp. z o.o.	$42,928.18	fidendo.pl
Accounting Expertssp. z o.o.	$43,357.69	acex.pl
E-Ksiegowesp. z o.o.	$41,691.59	e-ksiegowe.pl
AZ Partnerssp. z o.o.	$42,732.72	azpartners.pl
Sigma-Bsp. z o.o.	$40,493.40	sigma-b.com
Finlegissp. z o.o.	$40,507.26	finlegis.pl
Biuro Księgowe.Plsp. z o.o.	$40,466.29	biuroksiegowe.pl
GGW Księgowośćsp. z o.o.	$38,626.16	ggwksiegowosc.pl
Przyjazne Księgowesp. z o.o.	$38,475.99	przyjaznepodatki.com.pl
Lucidus Ordosp. z o.o.	$35,616.95	lucidusordo.pl

FAQ

Last updated: 2026-07-16