Overview
Hydrosun from Białystok delivers comprehensive home installations, including renewable energy systems, photovoltaic systems, heat pumps, heating systems and sanitary installations. The company also installs energy storage systems, including 10 kWh Huawei units, and assists with preparing grant documentation.
Financials
Revenue history (in k)
Data and insights are generated automatically based on financial statements and may contain errors. This analysis is for informational purposes only and does not constitute an official assessment of the company's credibility or business advice.
Statistics
How the company ranks by revenue within its industry, region and across Poland in 2025.
Results vs industry
Industry
Bank accounts
Registered as a VAT taxpayer on 2021-02-20. Active
04 1140 2004 0000 3502 8096 7336
Debt
No entries in the National Debtors Register (KRZ). No proceedings in KRZ
Public aid
No public aid cases recorded in the last 10 years.
Tenders
7 tenders recorded as contractor: 6 national ($414,186) and 1 EU ($14,626).
| Publication date | Subject | Amount | Contracting authority | |
|---|---|---|---|---|
| Jul 3, 2026 | Przebudowa klubu kultury w teremiskach na cele społeczne i kulturalne wraz z budową niezbędnej towarzyszącej infrastruktury technicznej | $228.9K$228,922 | Gmina Białowieża | |
| Jul 8, 2025 | Modernizacja energetyczna budynku ochotniczej straży pożarnej w białowieży | $87,644$87,644 | Gmina Białowieża | |
| Jun 3, 2024 | Dostawa i montaż pomp ciepła na potrzeby utworzenia placówki opiekuńczo-wychowawczej typu rodzinnego w Dąbrowie Białostockiej | $14,626$14,626 | Powiat Sokólski – Zarząd Powiatu Sokólskiego |
Regulatory authorisations
| Authority | Type | Status | |
|---|---|---|---|
 KNF | Consumer credit intermediary | Active | |
 BDO | BDO register entry | Active |
Authorized Representatives
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 |
|---|---|---|---|
Krzysztof Czaczkowski (39) | 25 | $337.66 | 25% |
Paweł Czaczkowski (40) | 25 | $337.66 | 25% |
Jakub Marciuk (37) | 25 | $337.66 | 25% |
Karol Mścichowski (39) | 25 | $337.66 | 25% |
Krzysztof Czaczkowski and Paweł Czaczkowski hold a combined 50% – the ownership structure indicates family control.
Beneficial owners
| Person | Rights |
|---|---|
Competitors
| Name | Revenue | Website | ||
|---|---|---|---|---|
| Heliosenergia.Plsp. z o.o. | $2,547,761.09 | heliosenergia.pl | ||
| Elsolarsp. z o.o. | $2,203,943.24 | elsolar.pl | ||
| Suntranssp. z o.o. | $1,737,736.68 | suntrans.pl | ||
| ECO Solsp. z o.o. | $1,490,748.40 | eco-sol.pl | ||
| ON Technologysp. z o.o. | $1,126,586.47 | ontechnology.pl | ||
| W.H Groupsp. z o.o. | $1,073,603.40 | whgroup.pl | ||
| Enerbsp. z o.o. | $957,282.78 | enerb.pl | ||
| Enexa Energysp. z o.o. | $922,620.90 | enexaenergy.pl | ||
| Fotowoltaika.Biz.Plsp. z o.o. | $842,054.01 | fotowoltaika.biz.pl | ||
| Gosolarsp. z o.o. | $449,064.91 | gosolar.pl |
FAQ
Last updated: 2026-04-24