ISD Immobilien Service Deutschland

What ISD Immobilien Service Deutschland does

ISD Immobilien Service Deutschland GmbH & Co. KG is a German full-service building maintenance provider founded in 1983 and headquartered in Lüdenscheid (Sauerland). The company delivers six core facility-management service lines — Büro-/Treppenhausreinigung (office and stairwell cleaning), Haustechnik/Hausmeisterservice (technical building management and janitorial services), Außenreinigung (exterior cleaning), Grünflächenpflege (green area maintenance), and Winterdienst (winter services) — through a nationwide network of more than 105 branches. Its operational footprint spans approximately 7,000 employees, over 24,000 managed properties, 840,000 residential units covered by stairwell cleaning contracts, 36 million square meters of maintained green space, and 6.7 million square meters of winter-service area. The customer base is diversified across the German Wohnungswirtschaft (housing and property management, the primary segment), banking and insurance, retail chains, kindergartens/daycares, and industrial/logistics clients, with each contract customized after an on-site assessment.

The business model rests on recurring, bespoke service contracts priced per property after on-site consultation (no publicly disclosed tiers), with annual billing for ongoing engagements and project-based pricing for one-off works such as intensive or façade cleaning. ISD does not operate a proprietary technology platform; its digital footprint consists of operational tools — a Kundenportal customer portal providing contract, invoice, and service-calendar transparency, and the ISD2go corporate mobile app with integrated Mobile Zeiterfassung (digital time tracking) — alongside procurement partnerships with leading suppliers including Kärcher (cleaning equipment) and Tana-Chemie (sustainable cleaning agents under the Green Care Professional brand). Service quality is supported by an in-house Akademie in Lüdenscheid that delivers workshops, seminars, and e-learning to branch staff and managers.

ISD is a privately held GmbH & Co. KG with no parent company, no institutional investors, and no disclosed funding events. Growth has been organic, centered on branch openings — including the 100th branch in Ingolstadt and a recently established Mainz branch — and on internal career progression among branch managers. In 2025, Markus Bösl was appointed Geschäftsführer (Managing Director), and the company has continued to invest in leadership development through Führungskräftetagung (leadership conferences) in 2025 and 2026. The firm operates exclusively in Germany, with fixed contact persons at each branch driving both field sales and service delivery.

Name

ISD Immobilien Service Deutschland

Legal name

ISD Immobilien Service Deutschland GmbH & Co. KG

Website

https://isd-service.de

Company type

Private

Founded year

1983

Operating status

Operating

Headcount range

51–100 employees

Short description

ISD Immobilien Service Deutschland, founded in 1983, is a German full-service building-maintenance provider operating 105+ branches nationwide with roughly 7,000 employees serving more than 24,000 properties across housing, banking, retail, childcare, and industrial segments.

Ownership category

akta.pro rank

Product category

Facility Management Services

NAICS

Janitorial Services (561720), Facilities Support Services (561210), Services to Buildings and Dwellings (5617)

SIC

Services-Facilities Support Management Services (8744), Sanitary Services (4950)

akta.pro primary industry

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

akta.pro secondary industry

Disinfection, Sanitization & Infection Prevention Services (BPABABAE)

Keywords

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

Headquarters

HQ city

Lüdenscheid

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Facility Management Services: Recurring service contracts for building maintenance including cleaning, grounds maintenance, winter services, and technical building management. Contracts are customized based on object-specific needs after on-site assessment. Revenue is generated through ongoing service agreements with both residential and commercial customers.
2. Individual Service Projects: One-time or periodic services such as intensive cleaning, facade cleaning, or special maintenance work. Pricing based on specific service requirements and scope.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels4 records

Core offering

ISD Immobilien Service Deutschland is a full-service building maintenance provider offering six core service areas: office cleaning (Büroreinigung), stairwell cleaning (Treppenhausreinigung), building technology and janitorial services (Haustechnik/Hausmeisterservice), exterior cleaning (Außenreinigung), green area maintenance (Grünflächenpflege), and winter services (Winterdienst). The company delivers these services through a nationwide network of 105+ branches across Germany, customized for each property after on-site assessment, serving housing associations, property managers, banks, retail chains, kindergartens, and industrial/logistics companies.

Product overview

ISD Immobilien Service Deutschland is a full-service building management provider offering a comprehensive portfolio of facility management services organized into six core service areas: Büroreinigung (office cleaning), Treppenhausreinigung (stairwell cleaning), Haustechnik/Hausmeisterservice (building technology and janitorial services), Außenreinigung (exterior cleaning), Grünflächenpflege (green area maintenance), and Winterdienst (winter services). These services are delivered through a nationwide network of over 100 branches. The company supplements its core services with digital platforms including the Kundenportal (customer portal) for transparent access to contracts, invoices, and service calendars; the Mitarbeiterportal (employee portal) for internal staff operations; the ISD2go mobile application featuring integrated mobile time tracking (Mobile Zeiterfassung); and the in-house Akademie (academy) for employee training and development. The product portfolio is structured as integrated service offerings rather than a modular software platform, with services customizable through on-site consultations and combinable based on individual client needs.

Differentiator

Problem solved

Functional benefit

Brands

• ISD2go: Mobile employee app for communication, time tracking, and access to work assignments and company information.

Products and services

• Büroreinigung (Office Cleaning) Professional building cleaning services for offices, entrance areas, kitchens, sanitary facilities, and elevators as part of comprehensive facility management for commercial clients.
• Treppenhausreinigung (Stairwell Cleaning) Professional cleaning of stairwells, corridors, common areas, and shared facilities in residential buildings for property management companies and housing associations.
• Haustechnik / Hausmeisterservice (Building Technology and Janitorial Services) Technical building management services including regular inspection and maintenance of building systems such as sprinkler systems, elevators, heating systems, and security equipment, combined with janitorial services for residential and commercial properties.
• Außenreinigung (Exterior Cleaning) Outdoor cleaning services including walkways, driveways, parking lots, trash areas, playground maintenance, and surface cleaning for commercial and residential properties.
• Grünflächenpflege (Green Area Maintenance) Gardening and landscape maintenance services including lawn care, bed and plant care, pruning, leaf removal, playground safety inspections, and vegetation control for residential and commercial properties.
• Winterdienst (Winter Services) Snow removal and gritting services for commercial and residential properties, including early morning readiness and multiple daily visits during acute weather conditions, covering 6.7 million square meters nationwide.
• Kundenportal (Customer Portal) Exclusive online portal providing customers with access to contact information, contract details, invoices, object information, calendar of planned and completed services, and document storage.
• ISD2go App Corporate app enabling employees to communicate via chat, access mobile work documentation, view assignments, record time via integrated mobile time tracking, and stay updated on company news and actions.
• ISD Akademie (Academy) In-house training facility in Lüdenscheid offering workshops, seminars, and e-learning modules for employee development across all areas of the business, including janitorial training and certification programs.

Quantifiable outcome

• 840,000 residential units under stairwell cleaning contracts
• +3 more outcomes

Named customers5 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Four partnerships are on record, tiered core and minor.

• Tana-Chemie GmbHcoreTechnology or IntegrationPioneer in sustainable cleaning products under the Green Care Professional brand. Products feature biodegradable ingredients and recyclable packaging made from up to 100% recycled material. Exceeds highest sustainability standards.
• Alfred Kärcher Vertriebs-GmbHcoreTechnology or IntegrationWorld-leading provider of cleaning technology including high-pressure cleaners, vacuum cleaners, sweepers, scrubber dryers, car washes, cleaning agents, and more. Offers innovative solutions with comprehensive product ranges and digital applications.
• mobiloclean Handelsgruppe GmbH + Co. KGminorChannel Partner/ Reseller/ DistributorAssociation of family-owned specialty wholesalers offering cleaning supplies, cleaning equipment for building cleaners, industry, hotels, gastronomy, and elderly care. Also provides software solutions for purchasing optimization.
• AonminorStrategic or Co-development PartnerInternational professional services firm providing the 'MitarbeiterPlus' insurance package to ISD employees with special rates for home contents, liability, car, travel, and dental insurance.

Scale indicators8 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Sodexo Germany: German subsidiary of global FM and food services giant Sodexo. Overlaps with ISD in facility services and cleaning for commercial clients but operates as part of a much broader global portfolio including food services and benefits & rewards.
• Compass Group (Eurest/R&V): UK-listed global FM and contract catering group with German operations. Comparable to ISD in facility and cleaning services for commercial and institutional customers, but much broader and globally diversified.
• Hochtief Facility Management: Facility management arm of major German construction group Hochtief, providing integrated building services. Comparable to ISD in technical building management and commercial cleaning for enterprise clients.

Direct peers

• Gegenbauer Services: Berlin-based integrated facility services provider with cleaning, technical building management, and security services across Germany. Comparable to ISD in scale, service portfolio, and target customers (housing, commercial, public sector).
• Strabag Property and Facility Services: Austrian-German integrated facility management company providing technical and commercial building services across Germany, Austria, and Eastern Europe. Comparable to ISD in building services portfolio and target customer base.
• Apleona Group: Germany-headquartered integrated facility management company serving commercial, industrial, and public sector clients across Europe. Comparable to ISD in IFM positioning and service portfolio (cleaning, technical, energy management).
• Dussmann Group: German facility services provider (Dussmann Service) offering cleaning, technical building management, security, and integrated FM solutions. Direct competitor in commercial cleaning and full-service building management across Germany.
• Wisag Industrie Service Holding: One of Germany's largest privately-held facility services companies, offering cleaning, technical building management, security, and grounds maintenance across multiple verticals. Directly comparable to ISD in service mix, German nationwide footprint, and labor-intensive delivery model.
• Piepenbrock Unternehmensgruppe: German family-owned facility services company providing cleaning, maintenance, security, and building technology. Closely comparable to ISD in integrated FM service mix, German nationwide delivery, and target customer base.
• Dorfner Gruppe: German family-owned facility services company offering cleaning, building technology, and interior services primarily in southern Germany. Comparable to ISD in service mix though smaller scale and more regionally concentrated.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks1 record

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles16 records

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 ISD Immobilien Service Deutschland