immOH! Macht Ihre Immobilie zu einem besseren Ort.

What immOH! Macht Ihre Immobilie zu einem besseren Ort. does

immOH! is a Vienna-based, full-lifecycle facility management provider operating two legally separate entities under a unified brand: immOH! Energie und Gebäudemanagement GmbH (technical building services, energy management, BIM/FIM, planning and construction) and HC immOH! Infrastruktur Services GmbH (cleaning, grounds maintenance, winter services). The company manages more than 891 properties across approximately 1.8 million m² of floor area in Austria, employing over 900 people, and is a wholly-owned subsidiary of Wiener Stadtwerke Gruppe, the municipal utility of the City of Vienna. Service lines span technical building services (HVAC, electrical, elevator and control systems), infrastructural services, a registered safety technology center, energy management, BIM-to-FIM digital building management with digital twin and 3D scanning capabilities, and real estate development through the WSTW-Immo joint venture with GWSG.

The business model is a managed services / professional services hybrid: long-term B2B contracts with property owners, managers, commercial and public-sector clients, supplemented by real estate development for Wiener Stadtwerke employees and the public. immOH! monetizes through individually negotiated multi-year facility management agreements rather than published pricing, and benefits from intra-group demand from sister companies Wien Energie and Wiener Netze. The company holds ISO 9001, 14001, 45001, 50001 and BASA II certifications, and aligns with the Wiener Stadtwerke Group's 2040 climate neutrality commitment. Distribution is purely direct B2B field sales with division-specific sales contacts, supported by the parent group's municipal procurement relationships rather than any retail or marketplace channels.

In FY2025 the two entities generated combined revenue of approximately €102.3 million (€68.4M from Energie und Gebäudemanagement plus €33.9M from Infrastruktur Services), positioning immOH! among the top three facility management providers in Austria with a 46-year operating history since its 1978 founding as Energiecomfort.

Name

immOH! Macht Ihre Immobilie zu einem besseren Ort.

Legal name

immOH! Energie und Gebäudemanagement GmbH

Website

https://immoh.at

Company type

Private

Founded year

1978

Operating status

Operating

Headcount range

501–1,000 employees

Short description

immOH! is a Vienna-based, top-three Austrian facility management provider, wholly owned by Wiener Stadtwerke Gruppe, offering technical building services, infrastructural services, energy management, BIM/FIM digital building management, and real estate development across 891 properties and 1.8 million m².

Ownership category

akta.pro rank

Product category

Facility Management Services

NAICS

Facilities Support Services (561210), Administrative and Support Services (561)

akta.pro primary industry

Hard Services (MEP/HVAC, Electrical, Plumbing) (BPABAAAA)

akta.pro secondary industries

Compliance, Risk & EHS Management (BPABAAAK), Energy & Sustainability Management (Energy Audits/Optimization/Carbon & ESG Programs) (IMAIAAAM), Asset & Lifecycle Management (CapEx Planning, Reliability) (BPABAAAI), Security, Safety & Fire/Life Safety Management (BPABAAAE)

Keywords

• Facility management services
• Building maintenance services
• Energy management solutions
• Commercial cleaning services
• Property management services

Headquarters

HQ city

Breitenfurt Bei Wien

HQ country

Austria

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Facility Management Services: Comprehensive facility management services including technical services (building technology, maintenance, energy management, warranty tracking, BIM), infrastructural services (cleaning, grounds maintenance, winter services), safety technology, and planning/construction services. Services are delivered under long-term contractual relationships with property owners, managers, and commercial clients.
2. Immobilienentwicklung (Real Estate Development): Development of residential real estate projects in collaboration with GWSG (Gemeinnützige Wohnungs- und Siedlungsgesellschaft). Projects include Gutenberg (20 apartments), Mödling (17 apartments), Forsthausgasse (in planning), and Purkersdorf. Properties are developed for Wiener Stadtwerke employees and the general public.
3. Safety Technology Services: External safety technology center providing occupational safety, fire protection, hazardous goods, waste management, occupational medicine, and object safety inspection services. Registered in the list of safety technology centers of the Arbeitsinspektorat.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

immOH! provides full-lifecycle facility management services across Austria, covering technical building services (HVAC, electrical, maintenance, energy management, warranty tracking, BIM), infrastructural services (cleaning, grounds maintenance, winter services), a registered safety technology center, planning and construction services, and residential real estate development. The company manages 891+ properties totaling 1.8 million m² through two operating entities under a unified brand, delivering single-source solutions from new construction through ongoing maintenance for property owners, managers, and commercial clients.

Differentiator

Problem solved

Functional benefit

Products and services

• Haus- & Gebäudetechnik (Building Technology Services) Comprehensive building technology services covering HVAC, electrical, plumbing, elevators, and control systems for commercial and residential properties across Austria. Addresses system synergies and holistic building operations management for property owners, managers, and clients.
• Instandhaltung (Maintenance Services) Maintenance services covering measures to preserve system availability and operational reliability, including preventive and predictive maintenance strategies to optimize system costs over the entire lifecycle. Aimed at property owners and operators seeking to maintain building systems and optimize operating processes.
• Gewährleistung (Warranty Tracking Services)
• Energiemanagement (Energy Management Services)
• Building Information Modeling (BIM) Services
• Infrastrukturelle Services (Infrastructure Services)
• Sicherheitstechnisches Zentrum (Safety Technology Center)
• Planungs- & Errichtungsleistungen (Planning and Construction Services)
• Immobilienentwicklung (Real Estate Development)

Quantifiable outcome

• 891 properties managed across 1.8 million m² in Austria
• +2 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Five partnerships are on record, tiered core, major and minor.

• Gemeinnützige Wohnungs- und Siedlungsgesellschaft (GWSG)coreStrategic or Co-development Partner · 1 January 2023WSTW-Immo is a joint venture between immOH! (real estate development expertise) and GWSG (experienced housing manager in non-profit residential construction). The partnership develops Wiener Stadtwerke properties into residential housing for employees and the public in Vienna and surroundings. Projects include Gutenberg (20 apartments), Mödling (17 apartments), Forsthausgasse (in planning), and Purkersdorf.
• Wiener Stadtwerke-Gruppe (Parent Company)coreOthersimmOH! is a subsidiary of Wien Energie, which is part of the Wiener Stadtwerke-Gruppe, Vienna's largest municipal infrastructure group. Wiener Stadtwerke includes Wiener Linien, Wien Energie, Wiener Netze, Wiener Lokalbahnen, Wipark, Wien IT, Bestattung Wien, and Friedhöfe Wien. The group enables immOH! to access municipal contracts and provides organizational support.
• Wien EnergiemajorTechnology or IntegrationimmOH! works together with Wien Energie for technical planning and construction services. Wien Energie provides broad energy technology expertise and specialist competence for a variety of energy-related services. immOH! plans and constructs electrical systems, photovoltaic systems, and water, sanitation, and heating supply systems in collaboration with Wien Energie.
• Quality AustriaminorOthersimmOH! received ISO 9001 certification from Quality Austria in 2000, one of the first companies in the facility management industry to achieve this certification. Quality Austria continues to provide certification audit services.
• TÜV SÜDminorOthersTÜV SÜD provides ISO 14001 (environmental management), ISO 45001 (occupational health and safety), and ISO 50001 (energy management) certifications for immOH!'s management systems.

Scale indicators11 records

Recent moves14 records

Expansion highlights5 records

Direct peers

• Gegenbauer Holding GmbH & Co KG: One of Austria's largest integrated facility management providers offering technical building management, cleaning, security and infrastructural services for commercial and public-sector clients, directly comparable in scale and DACH market focus with immOH!.
• Caverion Österreich GmbH: Nordic-headquartered specialist in technical building services (HVAC, electrical, automation) with Austrian operations delivering MEP, energy optimization and building lifecycle services directly overlapping with immOH!'s hard-services offering.

Broad incumbents

• Sodexo Austria GmbH: Subsidiary of global FM and food services major Sodexo, providing facility management, technical services and workplace solutions in Austria, offering overlapping services to immOH! within a much broader international portfolio.
• Aramark GmbH (Austria): Global facility services and food services provider with Austrian operations delivering building management, cleaning and energy services - overlapping with immOH! across facility services scope though broader international platform.
• Strabag Property and Facility Services GmbH: Austrian subsidiary of construction giant Strabag SE providing facility management, technical services and property operations, comparable to immOH!'s full-lifecycle approach connecting construction planning with ongoing operations.
• ISS Austria (ISS Facility Services Holding GmbH): Danish-origin global integrated facility services provider with Austrian operations delivering cleaning, technical services, security and workplace services - same core IFM model as immOH! but at substantially greater scale internationally.
• Engie Services Austria / ENGIE Gebäudetechnik: Austrian operations of global energy and facility services group ENGIE providing technical building services, HVAC, energy management and energy efficiency solutions - particularly comparable to immOH!'s energy management and technical building services lines.
• Dussmann Service Austria GmbH: Austrian subsidiary of Dussmann Group (Germany), delivering integrated facility management, technical building services, cleaning and security with strong DACH presence comparable to immOH!'s service breadth and customer mix.
• WISAG Austria / WISAG Facility Service: WISAG is a leading German FM group with Austrian operations offering technical building management, infrastructural services, energy management and industrial services - very similar service taxonomy to immOH!'s technical and infrastructural divisions.

Emerging players

• Otto Wöhr GmbH Facility Management: Mid-sized German-Austrian FM provider offering technical and infrastructural facility services for commercial real estate, with comparable scope but more limited geographic footprint than immOH!'s Austrian national presence.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/facilitycomfort
• Instagraminstagram.com/immoh.at

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

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 immOH! Macht Ihre Immobilie zu einem besseren Ort.