Kauffer
Käuffer Gruppe is a German building technology group operating 27 subsidiaries across 18 locations with 800+ employees, delivering heating, cooling, ventilation, water treatment, fire protection, sanitary systems, and integrated facility management to residential, commercial, industrial, and defense customers.
- Company typePrivate
- Founded1866
- HeadquartersMainz, Germany
- Headcount501–1,000
- GTM typeB2B and B2C
- OfferingServices
What Kauffer does
Käuffer Gruppe is a privately held German building technology group headquartered in Mainz, founded in 1866 by Paul Käuffer, who invented the low-pressure steam heating system with valve regulation. The group operates 27 wholly-owned subsidiaries across 18 locations in Germany with more than 800 employees, delivering integrated building services spanning heating (heat pumps, solar thermal, pellet, gas, oil), photovoltaic systems, climate control (air conditioning, ventilation, plastic ventilation technology), industrial refrigeration, DIN-certified fire protection, water technology (public supply, process water treatment, drinking water hygiene), sanitary systems, and integrated facility management. A specialized LKK subsidiary adds international water-treatment and autonomous energy deployment capabilities, including mobile drinking water plants and renewable energy systems for German Bundeswehr camps in Mali, Kosovo, and Afghanistan, and historical Central Asian operations.
Kauffer firmographics
Firmographics- Name
- Kauffer
- Legal name
- Käuffer & Co. GmbH
- Website
- https://kaeuffer.de
- Company type
- Private
- Founded year
- 1866
- Operating status
- Operating
- Headcount range
- 501–1,000 employees
- Short description
- Käuffer Gruppe is a German building technology group operating 27 subsidiaries across 18 locations with 800+ employees, delivering heating, cooling, ventilation, water treatment, fire protection, sanitary systems, and integrated facility management to residential, commercial, industrial, and defense customers.
- Ownership category
- akta.pro rank
Where Kauffer is headquartered
LocationHeadquarters
- HQ city
- Mainz
- HQ country
- Germany
- HQ region
- Europe
Offices18 records
Markets served
Kauffer business model
Business model- GTM type
- B2B and B2C
- Offering type
- Services
- Cost components
- Personnel, Supply Chain, Operations, Marketing or Sales, Technology or R&D
Revenue model
- Installation and Project Services: Project-based installation services for heating, cooling, ventilation, water technology, and fire protection systems. Revenue from new installations, modernizations, and custom building technology projects.
- Maintenance and Service Contracts: Ongoing maintenance services for installed building systems including heating systems, air conditioning, refrigeration, and water installations. Regular inspection and repair services.
- Direct Product Sales: Direct sales of building technology products including heat pumps, photovoltaic systems, air conditioning units, and sanitary equipment.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Transaction based/ take rate | Pay-as-you-go | Project-based pricing |
| Unit Pricing | Annual | Mechatroniker Kältetechnik annual salary |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels3 records
Kauffer product offering
Product offeringCore offering
Käuffer is a German building technology group that designs, installs, and maintains comprehensive building systems including heating, ventilation, climate control, refrigeration, water technology, fire protection, sanitary systems, and pipeline construction for residential, commercial, industrial, and government customers. The group operates through 27 subsidiary companies across 18 German locations with over 800 employees, offering both project-based installations and ongoing maintenance services for building technology infrastructure.
Product overview
Käuffer is a German building technology group offering comprehensive building systems services through a multi-brand portfolio of 27 subsidiaries operating at 18 locations across Germany. The company provides integrated building technology solutions including heating (heat pumps, solar thermal, pellet, gas, and oil systems), photovoltaic solar energy, climate control (air conditioning, ventilation, plastic ventilation technology), refrigeration for industry and commerce, DIN-certified fire protection systems, water technology (public supply, process water treatment, drinking water hygiene), sanitary systems, and integrated facility management. The portfolio includes specialized offerings like mobile water treatment infrastructure for military deployments abroad and custom plastic ventilation solutions for laboratories. Käuffer operates under multiple subsidiary brands including Käuffer & Co., LKK KLIMATECHNIK, Lehmann & Wiesner, Kreipl+Mannert, and others, offering both installation and maintenance services for residential, commercial, and industrial customers.
Differentiator
Problem solved
Functional benefit
Products and services
- Heating Systems (Heizung)
Quantifiable outcome
- Considerable cost savings through heat recovery ventilation systems
- +1 more outcomes
Companies that use Kauffer
Customer profileNamed customers3 records
Segments3 records
Ideal customer profiles3 records
Kauffer technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Kauffer partnerships and signals
Strategic signalPartnerships
Two partnerships are on record, tiered core and minor.
- BundeswehrcoreLong-term partnership with German military for international deployment of water treatment and autonomous energy systems. LKK subsidiary provides complete solutions including drinking water treatment plants, grey water and wastewater systems, and solar/wind energy systems for military camps in challenging environments such as Mali, Kosovo, and Afghanistan. Partnership involves development, installation, and on-site operation of technical infrastructure.
- OELCHECK GmbHminorReference customer for ventilation system installation. LKK subsidiary installed exhaust air system for OELCHECK automotive testing facility in Branneburg with contract volume of EUR 68,000.
Scale indicators7 records
Recent moves6 records
Expansion highlights3 records
Kauffer competitors and assessment
Company assessmentBroad incumbents
- ENGIE Deutschland: German arm of the global ENGIE Group, providing facility management, technical building services (TGA), heating, cooling, and energy solutions for commercial and public-sector clients. Directly comparable to Käuffer in scope of integrated building technology, but at significantly larger national scale and with broader energy-service offerings.
- Viessmann: German heating, industrial, and refrigeration systems manufacturer with broad presence in heat pumps, boilers, and climate solutions. Comparable to Käuffer in the residential and commercial heating market, though as an equipment manufacturer rather than installer; an important upstream partner for Käuffer's heating business.
- Wisag: Major German facility-services and technical-building-services group with divisions covering HVAC, energy, and industrial services. Directly comparable to Käuffer's TGA/Facility Management business line, with a larger national footprint and broader service portfolio.
- Dussmann Group: Large German multi-service provider spanning facility management, technical building management, and energy services. Comparable to Käuffer in serving commercial and public-sector clients with integrated technical building services, though Dussmann is much larger and more diversified across cleaning, catering, and security.
- Stiebel Eltron: German manufacturer of heat pumps, water heaters, and ventilation systems with strong domestic brand presence. Comparable to Käuffer's heating and ventilation product lines, but operating as an equipment OEM rather than a building-services installer; increasingly a partner/competitor for residential heat-pump installations.
- Gegenbauer: Berlin-based German building and facility services group offering technical facility management, building technology, and energy services. Comparable to Käuffer in providing integrated TGA services to commercial and public-sector clients across multiple German locations.
Direct peers
- ROM Technik: Mid-sized German technical building services (TGA) company specializing in HVAC, refrigeration, plumbing, and electrical systems for commercial and industrial clients. Closely comparable to Käuffer in scale, multi-disciplinary TGA offering, and regional German presence.
- Rud. Otto Meyer Technik: German technical building services company offering heating, ventilation, air conditioning, refrigeration, plumbing, and fire-protection solutions. Closely comparable to Käuffer in its multi-discipline building-services model and German mid-market positioning.
- R+S Group: German technical building services specialist delivering heating, ventilation, air conditioning, refrigeration, and electrical solutions. Directly comparable to Käuffer in being a multi-discipline TGA provider serving commercial, industrial, and public-sector clients in Germany.
- GA-tec Gebäude- und Anlagentechnik: German TGA specialist providing heating, cooling, ventilation, plumbing, and electrical building services with a multi-location national footprint. Directly comparable to Käuffer in scale, service breadth, and customer segments.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Kauffer social profiles
Digital presenceKauffer compliance and trust
Trust signalCompliance1 record
Kauffer financial estimates
Financial estimateRevenue estimate
Valuation estimate
Kauffer leadership team
Management profileNumber of profiles
Profiles4 records
Kauffer subsidiaries and ownership
Company hierarchySubsidiaries27 records
Kauffer funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Kauffer M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Kauffer
What does Kauffer do?
Käuffer is a German building technology group that designs, installs, and maintains comprehensive building systems including heating, ventilation, climate control, refrigeration, water technology, fire protection, sanitary systems, and pipeline construction for residential, commercial, industrial, and government customers. The group operates through 27 subsidiary companies across 18 German locations with over 800 employees, offering both project-based installations and ongoing maintenance services for building technology infrastructure.
Is Kauffer a public or private company?
Kauffer is a private company. It is classified as management employee owned and is currently operating.
When was Kauffer founded?
Kauffer was founded in 1866. It employs 501 to 1,000 people.
Where is Kauffer based?
Kauffer is headquartered in Mainz, Germany, in the Europe region.
How does Kauffer make money?
Three revenue lines are on record. Installation and Project Services are the primary driver. The others are maintenance and Service Contracts and direct Product Sales.
Who are Kauffer's main competitors?
Broad incumbents on record are ENGIE Deutschland, Viessmann, Wisag, Dussmann Group, Stiebel Eltron and Gegenbauer. Direct peers are ROM Technik, Rud. Otto Meyer Technik, R+S Group and GA-tec Gebäude- und Anlagentechnik.
Does Kauffer have an API?
No public API is recorded for Kauffer.