
Overview
Mwk Development is a company that specializes in the installation of rainwater drainage systems and land dewatering services. They offer solutions such as underground rainwater tanks, drainage systems for rainwater dispersal, and gravity drainage systems for directing rainwater to specific areas like ditches or ponds. The company has over eight years of experience in managing stormwater and site drainage.
Financials
Revenue history (in k)
Filing timeliness
1 of 2 financial statements was filed late (for 2024, 30 days late).
- 202510/07/2026
- 202414/08/2025
Data and insights are generated automatically from financial statements – they may contain errors and are neither a credit assessment nor business advice.
Industry
Offer
- Rainwater tank installation
- Drainage system installation
- Stormwater drainage
Website technology
- Online shop
- WooCommerce
- Website
- WordPress
- Elementor
Authorized Representatives
Manner of representation
Each member of the management board is authorized to make declarations on behalf of the company independently.
Ownership
| Owner | Shares | Share value | Stake |
|---|---|---|---|
Karolina Maria Ostaszewskaage 42 | 20 | $270.12 | 20% |
Marcin Ostaszewskiage 42 | 80 | $1,080.50 | 80% |
Marcin Ostaszewski and Karolina Maria Ostaszewska 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.
Competitors
| Name | Revenue | Website | ||
|---|---|---|---|---|
| Investmilsp. z o.o. | $13,359,239.24 | investmil.pl | ||
| Marwentsp. z o.o. | $3,462,224.68 | marwent.org.pl | ||
| WM Instalacjesp. z o.o. + limited partnership | $1,969,031.78 | wminstalacje.pl | ||
| Przedsiębiorstwo Inżynierii Środowiska i Melioracji PiomelS.A. | $1,820,386.46 | piomel.pl | ||
| MASSsp. z o.o. | $1,367,630.32 | mass.pl | ||
| MWD Prosp. z o.o. | $565,272.55 | mwdpro.pl | ||
| Mazissp. z o.o. | $397,413.82 | mazis.pl | ||
| Ha-Dwa-Osp. z o.o. | $114,794.53 | ha-dwa-o.pl | ||
| Terrasystemsp. z o.o. | $80,746.87 | terrasystem.pl | ||
| Mawekosp. z o.o. | $8,599.23 | maweko.pl |
Change history
| Date | Event | |
|---|---|---|
| 2026-04-09 | Switch to PKD 2025 (2 PKD 2007 codes → 3 PKD 2025 codes) | |
| 2023-08-10 | Entered in the register |
FAQ
Last updated: 2026-07-16