Overview
Kleventa supplies installers, contractors and investors with ventilation, air-conditioning, heat pump and heat-recovery systems, as well as photovoltaic products. Its range includes inverters, energy storage systems, PV modules, mounting systems and components for residential, commercial and industrial projects. For over 12 years, Kleventa has been SAJ’s official distributor, service provider and Gold Partner in Poland, also providing technical and project support.
- Monday–Friday
- 8:00–16:00
Financials
Revenue history (in k)
Filing timeliness
3 of 6 financial statements were filed late (the longest delay 89 days for 2021).
- 202508/07/2026
- 202424/07/2025
- 202310/07/2024
- 202218/07/2023
- 202112/10/2022
- 202013/10/2021
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
- Ventilation systems
- Air conditioners
- Heat pumps
- Heat recovery systems
- Photovoltaic systems
- Agricultural technologies
Website technology
- Online shop
- WooCommerce
- Website
- WordPress
- Elementor
Authorized Representatives
Manner of representation
Joint action of two members of the management board or one member together with a commercial proxy. In the case of a one-person management board, the company is represented by the President of the Management Board.
Ownership
| Owner | Shares | Share value | Stake |
|---|---|---|---|
Mark Willem Klein Tank | 5 | $1,350.62 | 50% |
Koen Josephus Wolters | 5 | $1,350.62 | 50% |
Beneficial owners
| Person | Rights |
|---|---|
Bank accounts
Registered as a VAT taxpayer on 2013-06-01.
12 1020 3903 0000 1502 0091 5868- 44 1020 3903 0000 1502 0161 3595
Debt
No entries in the National Debtors Register (KRZ).
Real estate
| Type | Amount |
|---|---|
Land (incl. perpetual usufruct) | $82,873$82,873 |
Public aid
5 public aid cases recorded, with a total value of $8,359.
| Grant date | Purpose | Gross amount | Granting body | |
|---|---|---|---|---|
| Sep 20, 2020 | Aid compensating for the negative economic consequences of COVID-19, granted in limited amounts | $280$280 | Prezes Zakładu Ubezpieczeń Społecznych | |
| Aug 8, 2020 | Aid compensating for the negative economic consequences of COVID-19, granted in limited amounts | $363$363 | Prezes Zakładu Ubezpieczeń Społecznych | |
| Aug 8, 2020 | Aid compensating for the negative economic consequences of COVID-19, granted in limited amounts | $280$280 | Prezes Zakładu Ubezpieczeń Społecznych |
Regulatory authorisations
| Authority | Type | Status | |
|---|---|---|---|
 BDO | BDO register entry | Active |
Competitors
| Name | Revenue | Website | ||
|---|---|---|---|---|
| Flixhome Instalacjesp. z o.o. | $1,670,957.89 | instalacje.flixhome.pl | ||
| Technologia-Plussp. z o.o. | $1,522,122.16 | technologia-plus.pl | ||
| P-KA Solarsp. z o.o. | $1,163,224.59 | pkasolar.pl | ||
| Voltspotsp. z o.o. | $1,070,080.41 | voltspot.pl | ||
| Multi-Term Polskasp. z o.o. | $781,270.21 | multi-term.pl | ||
| Zakład Usług Technicznych Klimaxsp. z o.o. | $652,088.68 | klimax.com.pl | ||
| Prowablesp. z o.o. | $569,777.31 | prowable.pl | ||
| Czysta Energia Polskasp. z o.o. | $396,313.16 | czystaenergia.org | ||
| Lets Go Greensp. z o.o. | $373,142.55 | letsgreen.eu | ||
| Jarek Montuje Klimesp. z o.o. | $337,490.44 | jarekmontujeklime.pl |
Change history
| Date | Event | |
|---|---|---|
| 2021-04-16 | PKD change (Removed: 11 codes) | |
| 2019-05-15 | Address change (Wiosny Ludów 27, 64-800, Chodzież → Ul. Wiosny Ludów 27, 64-800, Chodzież) | |
| 2013-05-20 | Entered in the register |
FAQ
Last updated: 2026-07-15