RELIEN
Building energy-efficiency and mechanical-system installation services for property owners and builders
Highlights
- ProfitableFY2025 net profit €49k · RÚZ
- New on EvolcAdded 2026-11-09
About RELIEN
RELIEN installs water and sewer systems, heating, cooling, ventilation and solar-energy systems, and carries out building insulation, window and door replacement, thermal imaging, energy audits and energy certification.
The company works on reducing energy use in buildings during construction and renovation, including heating, hot-water production, lighting, ventilation and heat loss through the building envelope. RELIEN s.r.o. is based in Košice and was founded in 2013.
Product: Building services including mechanical installations, insulation, thermal imaging and energy audits.
Financials
| FY2025 | FY2024 | FY2023 | FY2022 | FY2021 | |
|---|---|---|---|---|---|
| Revenue | €1.1M | €1.3M | €1.2M | €1.6M | €711k |
| Growth | −19% | +14% | −27% | +125% | — |
| EBITDA | €113k | €119k | €153k | €112k | €50k |
| Operating profit | €67k | €91k | €130k | €97k | €23k |
| Net profit | €49k | €64k | €100k | €73k | €10k |
| Net margin | 4.6% | 4.9% | 8.6% | 4.6% | 1.4% |
| Personnel costs | €24k | €17k | €16k | €16k | €17k |
| Total assets | €757k | €716k | €855k | €684k | €472k |
| Cash | €205k | €268k | €285k | €535k | €187k |
| Liabilities | €215k | €222k | €427k | €356k | €217k |
| Equity | €541k | €492k | €427k | €328k | €255k |
As filed with RÚZ (Slovak register of financial statements). Each year links to its statement.
Public contracts
Contracts RELIEN signed since 1 Nov 2024, from the Slovak and Czech public contract registers. Values as published; amendments are not counted.
Customers
14 contracts with 11 buyers · €2.6M
| Contracts | Value | |
|---|---|---|
| Ministerstvo obrany SR | 2 | €779k |
| Košický samosprávny kraj | 2 | €669k |
| Prešovský samosprávny kraj | 1 | €500k |
| Obec Biel, Hlavná 48, 07 41 Biel | 1 | €149k |
| Mesto Velké Kapušany | 1 | €120k |
| Obec Michaľany | 1 | €69k |
| Východoslovenská galéria | 1 | €62k |
| SYSSLEE technology, s. r. o. | 1 | €59k |
Open public tenders for RELIEN →
Suppliers
1 contract with 1 supplier · —
| Contracts | Value | |
|---|---|---|
| Ministerstvo obrany SR | 1 | — |
Latest contracts
- 16 Oct 2026 for Obec Michaľany · Zmluva o dielo · €69k register
- 29 Sep 2026 from Ministerstvo obrany SR · Dohoda o poskytnutí služieb spojených s dodávkou energií register
- 21 Aug 2026 for Košický samosprávny kraj · Zmluva o dielo · €334k register
- 21 Aug 2026 for Košický samosprávny kraj · ZoD č.01445/2026/OPaI-34856 · €334k register
- 7 Jul 2026 for Ministerstvo obrany SR · Zmluva o dielo č. 2026/141 Prešov, Kasárne SNP - modernizácia plynovej kotolne budovy č. 21 - R · €131k register
- 7 Jul 2026 for Ministerstvo obrany SR · Zmluva o dielo č. 2026/144 „Prešov, budova na námestí Legionárov – modernizácia plynovej kotolne - R“ · €649k register
Jobs at RELIEN
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Website technologies
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Website detection does not establish a paid subscription or company-wide use. Tools loaded after consent or sign-in may be missed. “No longer observed” does not prove the company stopped using a tool.