What is the main business of SG?

The main business activity of SG focuses on plumbing, heat and air-conditioning installation.

When was the company founded?

The company was registered in the Polish National Court Register (KRS) on March 30, 2020.

Where is the headquarters located?

The headquarters is located at: 33A, 59-411 Paszowice.

Who is on the management board?

The management board consists of: Iwona Diana Keller Jamka (Member of the Management Board) and Krzysztof Mirosław Jamka (President 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, 2024 to December 31, 2024.

How much revenue was generated?

The company reported a revenue of $307,766 in 2024, which is an increase of 85.1% compared to 2023.

Is the company profitable?

Yes, in 2024 the company was profitable, achieving a net profit of $20,634.

SGsp. z o.o.

Plumbing, heat and air-conditioning installation

KRS: NIP: REGON:

Overview

Status

Active

Registry date

2020-03-30

Share capital

5,000.00 PLN

Registered address

33A, 59-411 Paszowice, Poland

Financials

Revenue history (in k)

From the notes

Current income tax (CIT due)	$0
Profit allocation	No decision

Filing timeliness

Financial statements were filed on time, on average 53 days early.

2025filed
202431/03/2025
202329/06/2024
202230/06/2023
202124/06/2022
202030/06/2021

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, city, voivodeship and across Poland in 2025.

Industry · Plumbing, heat and air-conditioning installation2,150 / 2,918

Top 74%

Division · Specialised construction activities7,489 / 11,035

Top 68%

Sector · Construction11,823 / 17,144

Top 69%

Voivodeship · Dolnośląskie14,728 / 23,931

Top 62%

Country · Poland185,079 / 298,279

Top 62%

Results vs industry

Revenue

This companyUSD 128.44kMedianUSD 332.07kAverageUSD 1.34m

Net profit

This companyUSD 697.80MedianUSD 13.88kAverageUSD 74.97k

Operating costs

This companyUSD 127.51kMedianUSD 302.32kAverageUSD 1.23m

Assets

This companyUSD 74.25kMedianUSD 193.16kAverageUSD 867.37k

Industry

Plumbing, heat and air-conditioning installation (43.22.Z)Primary

Authorized Representatives

Iwona Diana Keller-Jamkaage 35 – Management Board Member

Krzysztof Mirosław Jamkaage 47 – President of the Management Board

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
Iwona Diana Kellerage 35	99	$1,337.12	99%
Others	1	$13.51	1%

Beneficial owners

Person	Rights

Bank accounts

Registered as a VAT taxpayer on 2020-04-02.

mBank
88 1140 2004 0000 3502 7989 3877

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
MIR Energiasp. z o.o.	$420,327.46	mirenergia.pl
Salon & Serwis Melnarowiczsp. z o.o.	$410,497.77	melnarowicz.legnica.pl
Instalbud Legnicasp. z o.o.	$371,854.60	instalbud.legnica.pl
Climazonesp. z o.o.	$325,921.48	climazone.pl
4heatingsp. z o.o.	$318,443.28	4heating.pl
Dobry Klimatsp. z o.o.	$282,740.28	dobryklimat.kunecki.com
Koma Sp.Z.O.Osp. z o.o.	$235,751.94	koma24.pl
Synergis Instalacjesp. z o.o.	$259,589.24	synergis-polska.eu
Aqua Spacesp. z o.o.	$228,011.71	aqua-space.pl
Ergo Systemsp. z o.o.	$195,354.59	ergosystem.eu

FAQ

Last updated: 2026-04-18