Overview
MM Kościelak manufactures custom radiator covers as well as HPL sanitary cubicles and partitions. The company serves schools, preschools and the construction industry, with delivery and installation throughout Poland.
- Monday–Friday
- 8:00–16:00
Financials
Filing timeliness
The financial statement for 2025 was filed on time and audited by a statutory auditor.
- 202530/04/2026
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
Industry
Offer
- Radiator covers
- Sanitary cubicles
- HPL partition walls
- HPL toilet partitions
- MDF radiator covers
Website technology
- Online shop
- PrestaShop
- Analytics and marketing
- Google Tag Manager
Public procurement
MM Kościelak is the contractor in 4 public sector contracts, worth USD 6.19k in total. They were signed with 4 public buyers.
| Signed on | Subject | Amount | Public buyer | |
|---|---|---|---|---|
| Sep 15, 2026 | Radiator covers | $648.30 | Zespół Szkolno-Przedszkolny w Małusach Wielkich | |
| Aug 31, 2026 | radiator protection service | $1,510 | Szkoła Podstawowa Im. Jana Pawła II w Grodziszczu | |
| Aug 7, 2026 | Toilet cubicles for girls and boys | $3,055 | Zespół Szkolno-Przedszkolny |
Authorized Representatives
Manner of representation
To submit declarations of will and sign on behalf of the company, each member of the management board is authorised to act independently.
Ownership
| Owner | Shares | Share value | Stake |
|---|---|---|---|
Jakub Kościelakage 26 | 50 | $5,402.49 | 50% |
Marcin Karol Kościelakage 51 | 50 | $5,402.49 | 50% |
Jakub Kościelak and Marcin Karol Kościelak hold a combined 100% – the ownership structure indicates family control.
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.
Regulatory authorisations
| Authority | Type | Status | |
|---|---|---|---|
 BDO | BDO register entry | Active |
Competitors
| Name | Revenue | Website | ||
|---|---|---|---|---|
| Primario Grandesp. z o.o. | $4,638,635.46 | primariogrande.pl | ||
| Kart-Map Krzysztof Łachaczsp. j. | $3,119,095.18 | kart-map.pl | ||
| WE Reactsp. z o.o. | $2,362,215.65 | wereact.pl | ||
| KOAGsp. z o.o. | $754,312.90 | koag.pl | ||
| Spec Haussp. z o.o. | $575,754.24 | spechaus.pl | ||
| Kuchnie Wielkopolskiesp. z o.o. | $308,844.40 | kuchniewielkopolskie.com.pl |
FAQ
Last updated: 2026-04-30