THERMO/SOLAR Žiar
Manufactures thermal solar collectors and sells solar heating systems to households, housing projects and industry in Slovakia and abroad
About THERMO/SOLAR Žiar
THERMO/SOLAR Žiar manufactures thermal solar collectors, including flat and vacuum flat collectors, and supplies complete solar heating systems and collector mounting structures. The company also runs training courses for installers and offers consulting on the use of solar heat.
Customers include owners of family houses, apartment buildings and other facilities that need solar hot water or heating, as well as industrial heat users. The company sells its collectors, mounting structures and systems to these customers.
Founded on 1 January 1992 in Žiar nad Hronom, Slovakia, the company is a limited liability company and a member of the HARGASSNER group, which it joined in 2022. Its production in Žiar nad Hronom combines deep-drawn pressing of collector trays, selective conversion layer coating and final assembly in one location, with a stated capacity of 300,000 m² of collectors per year.
Product: Thermal solar collectors (flat, vacuum flat, horizontal), collector mounting structures and complete solar heating systems.
Financials
| FY2025 | FY2024 | FY2023 | FY2022 | FY2021 | |
|---|---|---|---|---|---|
| Revenue | €4.0M | €3.6M | €4.5M | €6.0M | €2.8M |
| Growth | +12% | −20% | −25% | +118% | — |
| EBITDA | €76k | −€237k | €257k | €961k | €222k |
| Operating profit | −€83k | −€363k | €135k | €857k | €131k |
| Net profit | −€88k | −€277k | €8k | €905k | €119k |
| Net margin | −2.2% | −7.7% | 0.2% | 15% | 4.3% |
| Personnel costs | €1.3M | €1.3M | €1.3M | €1.1M | €822k |
| Total assets | €6.8M | €7.0M | €3.7M | €3.9M | €2.0M |
| Cash | €1.8M | €1.8M | €163k | €1.1M | €4k |
| Liabilities | €1.6M | €1.7M | €1.6M | €1.8M | €860k |
| Equity | €5.2M | €5.3M | €2.1M | €2.1M | €1.2M |
As filed with RÚZ (Slovak register of financial statements). Each year links to its statement.
Public contracts
Contracts THERMO/SOLAR Žiar signed since 1 Nov 2024, from the Slovak and Czech public contract registers. Values as published; amendments are not counted.
Customers
4 contracts with 4 buyers · €20k
| Contracts | Value | |
|---|---|---|
| Ústav na výkon trestu odňatia slobody, Želiezovce | 1 | €20k |
| HOREZZA, a.s. | 1 | — |
| Slovenská technická univerzita v Bratislave | 1 | — |
| Základná škola s materskou školou, Udiča 248 | 1 | — |
Open public tenders for THERMO/SOLAR Žiar →
Latest contracts
- 21 Apr 2026 for HOREZZA, a.s. · Servisná zmluva č. S-JD-001/2026 register
- 10 Feb 2026 for Slovenská technická univerzita v Bratislave · Zmluva o budúcej zmluve o využití výsledkov riešenia projektu č.0101/0029/26 register
- 12 Jan 2026 for Základná škola s materskou školou, Udiča 248 · Servisná zmluva register
- 5 Dec 2025 for Ústav na výkon trestu odňatia slobody, Želiezovce · Zmluva o dielo · €20k register
Jobs at THERMO/SOLAR Žiar
Leadership
- Alfréd Gottas · Konateľ (Managing director)Source: business register
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