What is the main business of Instal-Dor?

The main business activity of Instal-Dor 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 May 4, 2023.

Where is the headquarters located?

The headquarters is located at: Siewna 7, 40-339 Katowice.

What is the share capital?

The share capital of the company is PLN 100,000 (approx. $27,012).

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?

In 2025, the company generated total revenue of $79,924, representing a decrease of 78.7% compared to 2024.

No, in 2025 the company was not profitable, reporting a net loss of $28,487.

What is the largest operating cost?

The largest operating cost category falls under external services. This category amounted to $82,010 in 2025, representing 78% of all operating expenses.

Instal-Dorsp. z o.o.

Plumbing, heat and air-conditioning installation

KRS: NIP: REGON:

Overview

Status

Active

Registry date

2023-05-04

Share capital

100,000.00 PLN

Activity description

Instal-Dor installs electrical and power systems, including lighting for sports facilities, streets and parks, as well as the modernization and replacement of power lines. The company also provides alarm, intercom, CCTV and shared television, computer network, access control and lightning protection installations for residential, industrial and sports buildings, handling projects from design through installation and system integration.

Registered address

Siewna 7, 40-339 Katowice, Poland

Website

instal-dor.pl

Phone

Financials

Revenue history (in k)

Filing timeliness

1 of 3 financial statements was filed late (for 2023, 361 days late).

202502/04/2026
202411/07/2025
202311/07/2025

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 79.92kMedianUSD 332.38kAverageUSD 1.34m

Net profit

This companyUSD -28.49kMedianUSD 13.81kAverageUSD 75.04k

Operating costs

This companyUSD 105.39kMedianUSD 302.36kAverageUSD 1.23m

Assets

This companyUSD 245.46kMedianUSD 193.16kAverageUSD 867.81k

Industry

Authorized Representatives

Dorota Ewa Radziejewska – Management Board Member

Karol Rafał Radziejewski – Management Board Member

Krzysztof Stanisław Radziejewski – President of the Management Board

Manner of representation

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

Ownership

Owner	Shares	Share value	Stake
Dorota Ewa Radziejewskaage 61	10	$2,701.24	10%
Karol Rafał Radziejewskiage 38	30	$8,103.73	30%
Krzysztof Stanisław Radziejewskiage 61	60	$16,207.46	60%

Krzysztof Stanisław Radziejewski, Karol Rafał Radziejewski and Dorota Ewa Radziejewska hold a combined 100% – the ownership structure indicates family control.

Beneficial owners

Person	Rights

Bank accounts

Registered as a VAT taxpayer on 2023-11-01.

PKO Bank Polski
97 1020 1068 0000 1502 0498 6792

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
Ikonedsp. z o.o.	$192,352.00	ikoned.pl
Proel Instalsp. z o.o.	$179,134.03	proelinstal.pl
Alpa_electricsp. z o.o.	$175,091.26	alpaelectric.pl
Norma-Elektrosp. z o.o.	$162,971.16	norma-elektro.pl
Elmar Technologysp. z o.o.	$126,673.35	elmartechnology.pl
Instal-Efektsp. z o.o.	$120,369.53	instal-efekt.pl
Elektro-Mariosp. z o.o.	$85,732.38	elektromario.pl
Sab-Instalsp. z o.o.	$67,471.40	sabinstal.pl
Enherm Tradesp. z o.o.	$41,710.54	enhermtrade.pl
Styl-Esp. z o.o.	$27,345.46	styl-e.pl