Holthausen GmbH

What Holthausen GmbH does

Holthausen GmbH is a privately held German limited liability company (GmbH) headquartered at Neuer Weyerstraßerweg 7, 50969 Köln, North Rhine-Westphalia. It is the lead entity of the Holthausen Gruppe, a group of three specialized companies collectively employing more than 200 people. The group delivers integrative building technology (integrative Gebäudetechnik) — heating and sanitary, refrigeration/climate/ventilation, electrical engineering, and control/automation technology — designed to interoperate and be centrally controlled rather than supplied as disconnected trade packages. The concept originated from the firm's own headquarters construction, which exposed the coordination complexity of using separate contractors for each discipline.

The portfolio comprises six service pillars: Heizung & Sanitär (heating and sanitary), Kälte-, Klima- & Lüftungstechnik (HVAC and ventilation), Elektrotechnik (electrical engineering), Regelungstechnik (control/building automation), Komplettbadlösungen (turnkey bathrooms under the Holthausen Exklusiv sub-brand), and a 24/7 emergency hotline (Holthausen Notruf) for heating, plumbing, and electrical emergencies. Revenue is generated through project-based installation work plus recurring maintenance and emergency service contracts, with pricing determined per project scope rather than via published rate cards.

Go-to-market is sales-led and direct, targeting commercial building owners, property managers, and construction companies/developers as primary segments, with residential property owners as a secondary segment. Distribution is entirely regional (Köln metropolitan area) via field service delivery, a 24/7 customer hotline, and website-driven inquiries, supported by digital marketing through Facebook, Instagram, and LinkedIn. Notable recent activity includes the November 2025 launch of the Holthausen Exklusiv bathroom sub-brand, a February 2026 announcement of innovative leak detection technology, and an October 2025 corporate website relaunch. No revenue, funding, ownership, or AI/ML capabilities are disclosed in the available data.

Name

Holthausen GmbH

Legal name

Holthausen GmbH

Website

https://firma-holthausen.de

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

Holthausen GmbH is a Köln-based private German building technology services group (three companies, 200+ employees) delivering integrated heating, plumbing, HVAC, electrical, and control/automation solutions to commercial and residential customers in the regional market.

Ownership category

akta.pro rank

Product category

Building Technology Services

NAICS

Plumbing, Heating, and Air-Conditioning Contractors (238220)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

HVAC & Refrigeration Contracting (IMAFALAB)

akta.pro secondary industry

Air Duct Cleaning & Sanitization (HSAOAIAA)

Keywords

• Building technology services
• HVAC installation
• Heating and sanitary
• Electrical engineering services
• Building automation systems

Headquarters

HQ city

Köln

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Marketing or Sales

Revenue model

1. Installation Services: Planning and precise execution of building technology installations for heating, sanitation, refrigeration, air conditioning, ventilation, and electrical systems in construction projects.
2. Maintenance & Service: Ongoing maintenance services for building technology systems including regular inspections and servicing.
3. Emergency Services: 24/7 customer emergency hotline for urgent building technology issues including heating, sanitation, and electrical emergencies.
4. Complete Bathroom Solutions: Holistic bathroom solutions including individual planning, professional implementation, and ongoing support from a single source.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Holthausen GmbH provides integrative building technology services including heating, sanitary, refrigeration/climate/ventilation, electrical engineering, and control technology. The company delivers planning, installation, maintenance, and 24/7 emergency services through three specialized companies under the Holthausen Gruppe in Cologne, Germany.

Product overview

Holthausen GmbH operates as an integrative building technology services provider organized under the Holthausen Group, comprising three specialized companies with over 200 employees. The portfolio centers on six interconnected service pillars: (1) Heizung & Sanitär covering heating systems, plumbing, and sanitary solutions; (2) Kälte-, Klima & Lüftungstechnik for refrigeration, climate control, and ventilation; (3) Elektrotechnik for electrical systems and networks plus sustainable energy solutions; (4) Regelungstechnik for building automation and system control enabling central management; (5) Komplettbadlösungen for turnkey bathroom solutions under the Holthausen Exklusiv sub-brand; and (6) a 24/7 emergency hotline (Holthausen Notruf) for urgent heating, plumbing, and electrical issues. The integrative approach ensures all building technology systems work together optimally through unified planning, execution, maintenance, and service.

Differentiator

Problem solved

Functional benefit

Brands

• Holthausen Exklusiv: Custom bathroom solutions with holistic concept - individually planned, professionally implemented and managed from a single source.

Products and services

• Heating & Sanitary (Heizung & Sanitär) Planning, installation, and maintenance of heating and sanitary systems for residential and commercial buildings in the NRW region.
• Refrigeration, Climate & Ventilation (Kälte-, Klima & Lüftungstechnik) Installation and servicing of refrigeration, air-conditioning, and ventilation systems for commercial and residential buildings.
• Electrical Engineering (Elektrotechnik) Installation, commissioning, and maintenance of building electrical systems integrated with heating, sanitary, and control technology.
• Control Technology (Regelungstechnik) Building control and automation systems that integrate heating, climate, ventilation, and electrical subsystems into a centralized control layer.
• Holthausen Exklusiv (Komplettbadlösungen) Premium turnkey complete bathroom solutions that bundle sanitary, heating, electrical, and control design and installation for private homeowners.
• Holthausen Notruf (24/7 Emergency Service) Round-the-clock emergency response service for heating, plumbing, and building-technology breakdowns in the NRW region.

Quantifiable outcome

• Optimal efficiency, comfort, and safety through integrated and centrally-controlled building systems

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Sodexo Deutschland: German arm of global facility services firm, providing integrated facility management including technical building services. Overlaps with Holthausen's maintenance and technical service offerings at scale.
• Strabag Property and Facility Services: German facility services subsidiary of construction group Strabag, offering technical building services, HVAC maintenance, and energy management. Comparable to Holthausen's integrated building technology positioning, especially for commercial property clients.
• Wisag: Germany's largest building and facility services company, offering technical building management, HVAC, and energy services alongside security and cleaning. Overlaps directly with Holthausen's HVAC, electrical, and refrigeration scope but at national scale with a much wider service portfolio.
• Gegenbauer Group: Berlin-based building services group offering technical facility management, HVAC maintenance, and energy services. Comparable service overlap with Holthausen's maintenance and HVAC offerings, but operates nationally and across multiple service categories.
• Kötter Services: German facility services group offering technical building management, HVAC, and electrical services alongside security and cleaning. Comparable MEP service overlap to Holthausen, but operates nationally and across multiple facility categories.
• Dussmann Group: German facility services group with technical building management, energy solutions, and electrical services as part of its portfolio. Overlaps with Holthausen in technical trades and building systems, though Dussmann operates at significantly larger scale and broader geographic scope.
• ENGIE Deutschland: German arm of global energy and HVAC services group ENGIE, providing heating, cooling, and integrated building energy solutions. Comparable as a large, established energy/HVAC service provider; competes with Holthausen in commercial building technology, especially for energy efficiency projects.

Regional players

• Ziemann Gruppe: German building services group focused on technical facility management, HVAC, and electrical systems. Comparable to Holthausen in its integrated MEP service positioning, though Ziemann typically operates in different German regions.

Direct peers

• SPIE GmbH: German subsidiary of SPIE SA, one of Europe's largest technical building services contractors. Directly comparable to Holthausen because both deliver MEP technical services (heating, cooling, electrical) for commercial buildings and infrastructure, though SPIE operates at substantially larger scale and broader geographic footprint.

Emerging players

• Stiebel Eltron: German heating, hot water, and heat pump manufacturer with growing service and installation partner network. Adjacent rather than directly competing, but overlapping with Holthausen in residential heating technology and increasingly in service-based delivery models.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/holthausengmbh
• LinkedInlinkedin.com/company/holthausen-gmbh
• Instagraminstagram.com/holthausen_gmbh

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Holthausen GmbH