COMPANY PROFILE
Kellner Haustechnik GmbH
GmbH (Limited Liability Company)EinhausenPlumbing, heat and air-conditioning installation
FOUNDED
1997
29+ years active
TRADE REGISTER
HRB 304251
Jena
INDUSTRY
Plumbing, heat and air-conditioning installation
SIZE CLASS
Small enterprise
Key questions answered
What does the company do?
die Installation, Wartung und Reparatur von Heizungs-, Sanitär- und Lüftungsanlagen sowie der Handel mit Ersatzteilen für Öl- und Gasfeuerungstechnik und der Betrieb eines Elektrofachhandels.
Who leads it?
Olaf Kellner · Managing Director
How large is it?
Small enterprise · 21 employees (2023)
How stable is it?
Stability assessment in Plus profile
Business activity
Industry (WZ2008)
Plumbing, heat and air-conditioning installation
WZ F43.22
Size class
Small
Industry (WZ2008) (3)
- F43.22Plumbing, heat and air-conditioning installation
- G47.54Retail sale of electrical household appliances in specialised stores
- G47.59Retail sale of furniture, lighting equipment and other household articles in specialised stores
Business purpose
die Installation, Wartung und Reparatur von Heizungs-, Sanitär- und Lüftungsanlagen sowie der Handel mit Ersatzteilen für Öl- und Gasfeuerungstechnik und der Betrieb eines Elektrofachhandels.
Legal essentials
- Register entry
- HRB 304251 (Jena)
- Legal form
- GmbH (Limited Liability Company)
- Founded
- 16 Mar 1997
- Share capital
- €25,565
- VAT ID
- —
- LEI
- —
- Representation rules
- Ist nur ein Geschäftsführer bestellt, so vertritt er die Gesellschaft allein. Sind mehrere Geschäftsführer bestellt, so wird die Gesellschaft durch zwei Geschäftsführer oder durch einen Geschäftsführer gemeinsam mit einem Prokuristen vertreten.
Order shareholder list
The statutory shareholder list (§ 40 GmbHG) straight from the official register portal — who holds which shares.
Available once you sign in
Annual statements
- Balance sheet
- €1,739,174
- Year
- 2023
10 annual statements are on file for this company.
Signals
Four dimensions from hard data — age, financials, HRB events, compliance. The ratings themselves are shown in the Plus profile only.
- Continuity1Available in Plus profile
- Financials2Available in Plus profile
- Management3Available in Plus profile
- Legal status4Available in Plus profile
Directors & officers
Managing directors
Olaf Kellner
Managing Director
A further 2 registered persons are shown in the Plus profile only.
Research contacts
AI-powered research for publicly available contacts: name, role, phone, email, LinkedIn.
Available once you sign in
Recent news
AI-powered research across press, social media and job postings from the last six months.
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Commercial register history
No events on file.
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Location neighbours
No nearby companies found.
DEVELOPERS
Programmatic access
Three ways to access this company's data programmatically:
- AGENT-CARD
Freely accessible, no API key required — a compact JSON summary for agents and crawlers.
- API
Full, authenticated data via the Implisense API v2 (API key required).
- MCP
MCP server live at mcp.implisense.com (FastMCP, Bearer auth) — usable with ChatGPT, Claude, and your own agents.
What the Plus profile adds
The same page, fully populated — plus the research services locked here.
- Revenue, result and equity across every available year
- All four signals with rationale and source
- Contact search: names, roles, phone, email, LinkedIn
- Shareholder list from the official register portal
- News research covering the last six months
- The full commercial register history