What is the main business of Portistone?

The main business activity of Portistone focuses on other stone cutting, shaping and finishing.

When was the company founded?

The company was registered in the Polish National Court Register (KRS) on September 16, 2026.

The headquarters is located at: Filtrowa 62, 02-057 Warszawa.

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

KRS: NIP: REGON:

Status

Active

Registry date

2026-09-16

Share capital

5,000.00 PLN

Registered address

Filtrowa 62/213, 02-057 Warszawa, Poland

Website

Electronic delivery address

AE:PL-97015-35008-RHEEB-22

Andrii Sydorenko – President of the Management Board

Marharyta Sydorenko – Attorney-in-fact (sole)

Each member of the management board independently.

Owner	Shares	Share value	Stake
Andrii Sydorenkoage 39	90	$1,215.56	90%
Marharyta Sydorenkoage 36	10	$135.06	10%

Andrii Sydorenko and Marharyta Sydorenko hold a combined 100% – the ownership structure indicates family control.

No beneficial owners recorded for the company Portistone.

No entries in the National Debtors Register (KRZ).

No public aid cases recorded in the last 10 years.

	Name	Revenue	Website
	Extreme Stonesp. z o.o.	$299,814.96	extremestone.pl

Last updated: 2026-10-03