ROCKER - ZJK
Diamond drilling and cutting of reinforced concrete for construction firms in Slovakia
Highlights
- ProfitableFY2025 net profit €25k · RÚZ
- New on EvolcAdded 2026-11-01
About ROCKER - ZJK
Rocker-ZJK s. r. o. provides diamond drilling, diamond wall, wire and hand sawing, anchoring, shot-fixing, diamond grinding and fire-resistant sealing for reinforced concrete. It also rents small construction equipment and offers mounting systems. Its services cover renovation work such as cutting openings in walls, ceilings and floors.
The company's customers are small, medium and large construction firms, working on everything from civil buildings to industrial facilities.
Rocker-ZJK s. r. o. is seated in Varín, Slovakia, and was founded in 2005. Its staff have placed in Tyrolit Cutting Pro concrete-cutting competitions, and the company provides instruction on operating Hilti machines.
Product: Diamond drilling, wall and wire sawing, anchoring, concrete grinding, fire-resistant sealing and small equipment rental for construction work.
Financials
| FY2025 | FY2024 | FY2023 | FY2022 | FY2021 | |
|---|---|---|---|---|---|
| Revenue | €168k | €185k | €176k | €115k | €125k |
| Growth | −9% | +5% | +53% | −8% | — |
| EBITDA | €29k | €10k | €8k | −€10k | −€15k |
| Operating profit | €26k | €5k | €3k | −€23k | −€33k |
| Net profit | €25k | €4k | €2k | −€24k | −€33k |
| Net margin | 14.7% | 2% | 1.4% | −20.4% | −26.3% |
| Personnel costs | €22k | €41k | €70k | €78k | €76k |
| Total assets | €45k | €56k | €43k | €46k | €74k |
| Cash | €14k | €7k | €16k | €6k | €26k |
| Liabilities | €265k | €300k | €290k | €296k | €301k |
| Equity | −€219k | −€244k | −€248k | −€250k | −€227k |
As filed with RÚZ (Slovak register of financial statements). Each year links to its statement.
Jobs at ROCKER - ZJK
Leadership
- Jaroslav Koniarik · Konateľ (Managing director)Source: business register
More construction companies
ROCKNET
Czech construction firm doing rock and structure rehabilitation, drilling and injection works for builders in CZ, SK and CEEProfitableRODAK.SK
Made-to-order wooden gazebos, garden houses, pergolas, carports and roof trusses for clients in Slovakia, from a Bzenica workshopYoung companyProfitableRODMEX
Renovation contractor for homes in Bratislava, also wholesaling designer fashion and accessories to boutiques and retailersYoung companyROKO gips
Construction and renovation of industrial, residential and civic buildings across SlovakiaProfitableGrowingNew on EvolcRoletka
Made-to-measure blinds, roller shades and insect screens with measurement and installation for households in PopradYoung companyProfitableRollFlex
Sells and installs outdoor blinds, screen roller shutters and custom sun shading for family homes and commercial buildingsYoung company
Website technologies
Tools and platforms detected on this company’s website, grouped by purpose. Dates record when Evolc observed them.
Analytics
- Google Universal AnalyticsMedium confidence
- First detected
- Last detected
- Last checked
Detection evidence
- Integration code on pageinitialization/configuration expression
- Integration code on pageinitialization/configuration expression
- Integration code on pageinitialization/configuration expression
Backend
- PHPHigh confidence
- First detected
- Last detected
- Last checked
Detection evidence
- Response headerx-powered-by
- Response headerx-powered-by
- Response headerx-powered-by
Content management
- WordPressHigh confidence
- First detected
- Last detected
- Last checked
Detection evidence
- Website resourcedeclared script/iframe or software asset
Forms
- Contact Form 7High confidence
- First detected
- Last detected
- Last checked
Detection evidence
- Website resourcedeclared script/iframe or software asset
Frontend frameworks
- jQueryHigh confidence
- First detected
- Last detected
- Last checked
Detection evidence
- Website resourcedeclared script/iframe or software asset
Hosting
- ApacheHigh confidence
- First detected
- Last detected
- Last checked
Detection evidence
- Response headerserver
- Response headerserver
- Response headerserver
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.
