What is the main business of Byarb?

The main business activity of Byarb focuses on activities of holding companies.

When was the company founded?

The company was registered in the Polish National Court Register (KRS) on March 31, 2026.

Where is the headquarters located?

The headquarters is located at: Plac Stanisława Małachowskiego 2, 00-066 Warszawa.

What is the share capital?

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

Byarbsp. z o.o.

Activities of holding companies

KRS: NIP:

Overview

Status

Active

Registry date

2026-03-31

Share capital

5 000,00 PLN

Activity description

Byarb is a boutique law firm specializing in arbitration and other forms of dispute resolution. It provides contract advisory, commercial arbitration, state court litigation, mediation, conciliation, expert determination, claim management, dispute boards, and TPF facilitation.

Registered address

Plac Stanisława Małachowskiego 2, 00-066 Warszawa, Poland

Website

byarbitration.com

Phone

Social media

Industry

Bank accounts

Registered as a VAT taxpayer on 2026-05-11. Active

mBank
55 1140 2004 0000 3602 8664 8144

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

Piotr Bytnerowicz — President of the Management Board

Marcin Zbytniewski — Management Board Member

Manner of representation

In the case of a one-person management board, the member of the management board makes declarations on behalf of the company. In the case of a management board consisting of two or more persons, joint action by two members of the management board or by one member of the management board jointly with a commercial proxy is required to make declarations on behalf of the company.

Ownership

Owner	Shares	Share value	Stake
Justyna Bytnerowicz (44)	25	$337.66	25%
Piotr Bytnerowicz (44)	25	$337.66	25%
Małgorzata Raszewska Zbytniewska	25	$337.66	25%
Marcin Zbytniewski (44)	25	$337.66	25%

Justyna Bytnerowicz and Piotr Bytnerowicz hold a combined 50% – the ownership structure indicates family control.

Beneficial owners

Person	Rights
Piotr Bytnerowicz (44)	Natural person holding a senior management position (AML Act art. 2(2)(1)(a) indent 5).
Marcin Zbytniewski (44)	Natural person holding a senior management position (AML Act art. 2(2)(1)(a) indent 5).

Subsidiaries

	Name	Stake
	Byarb Bytnerowicz Zbytniewskisp. k.	—

Competitors

Selected automatically: mainly by similarity of the business description, plus comparable revenue, industry (PKD code) and location. Only companies with a complete profile (including a logo and financial data) are shown. The list is indicative.

Name	Revenue	Website
Ahorasp. z o.o.	$222,870.83	ahora-polska.pl
Thronsp. z o.o.	$156,166.77	thron.pl
Wealth Management Servicessp. z o.o.	$20,392.92	wealthmanagementservices.eu
Kancelaria Wojnarowskisp. z o.o.	$7,962.66	kancelariawojnarowski.pl

FAQ

Last updated: 2026-04-01