What Nock does

Nock GmbH Gebäudereinigung is a German building cleaning and facility services company headquartered in Karlsruhe, Baden-Württemberg, with a second branch in Wassenberg, North Rhine-Westphalia. The company was originally founded as Labitzke GmbH in 1934, was acquired by Hans Nock GmbH in 1979, and has been under Goschler family ownership and management since 1985; a second-generation successor (Dipl.-Betriebswirtin FH) joined the Geschäftsleitung in 2012 as both Managing Director and Umweltbeauftragte (Environmental Officer).

The company operates as a Meisterbetrieb (master craft business) and offers a full-service portfolio: Unterhaltsreinigung (maintenance cleaning), Grundreinigung (deep cleaning), Teppichreinigung (carpet cleaning), Glasreinigung (glass and facade cleaning), Deckenreinigung (ceiling cleaning), Denkmalpflege (monument conservation cleaning), Photovoltaikreinigung (solar panel cleaning using deionized water with claimed 5-30% performance uplift), and Hausmeisterdienste (janitorial and facility management). Execution relies on an in-house machine park including Kärcher ride-on sweepers, Jöst Floor Sander dust-free grinding systems, Orbot SprayBorg low-noise cleaning machines, deionized water PV cleaning systems, and lifting platforms; some of these machines are also rented to third parties as a separate revenue line. The firm is a certified member of the Qualitätsverbund Gebäudedienste, a protected collective brand representing environmentally and socially responsible building cleaning businesses, and maintains a formal environmental management policy with a dedicated safety officer.

Revenue is generated through direct sales, custom quote-based pricing, recurring service contracts, and one-off projects delivered by the company's own trained workforce to commercial and institutional clients in the Karlsruhe region and North Rhine-Westphalia. Customer segments span offices and administrative buildings, schools and kindergartens, healthcare facilities, property managers, residential clients, and heritage buildings. Marketing is minimal (website plus Facebook presence), and growth is funded entirely internally with no disclosed external investors or funding rounds.

Name

Nock

Legal name

Nock GmbH Gebäudereinigung

Website

https://nock-gmbh.de

Company type

Private

Founded year

1934

Operating status

Operating

Headcount range

101–250 employees

Short description

Nock GmbH Gebäudereinigung is a Karlsruhe-based German building cleaning and facility services company, serving offices, schools, healthcare facilities, heritage buildings, and solar installations across Baden-Württemberg and North Rhine-Westphalia.

Ownership category

akta.pro rank

Product category

Commercial Building Cleaning Services

NAICS

Carpet and Upholstery Cleaning Services (561740), Other Services (except Public Administration) (81)

akta.pro primary industry

Cleanroom & Controlled Environment Cleaning (BPABABAH)

akta.pro secondary industry

Deep Dusting & High-Reach Cleaning (Ceilings, Fans, Vents, Baseboards) (HSAEABAG)

Keywords

• Commercial cleaning services
• Building maintenance services
• Janitorial facility services
• Carpet and floor cleaning
• Photovoltaic panel cleaning

Headquarters

HQ city

Karlsruhe

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Building Cleaning Services: Professional cleaning services including maintenance cleaning (Unterhaltsreinigung), deep cleaning (Grundreinigung), carpet cleaning, window cleaning, facade cleaning, ceiling cleaning, photovoltaic/solar panel cleaning, janitorial services (Hausmeisterdienste), monument conservation cleaning, and specialized machine services. Revenue is generated through service contracts (recurring) and special/one-time cleaning projects.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Nock GmbH is a Karlsruhe-based building cleaning and facility services company providing Unterhaltsreinigung (maintenance cleaning), Grundreinigung (deep cleaning), Glasreinigung, Teppichreinigung, Deckenreinigung, Photovoltaikreinigung, Denkmalpflege, and Hausmeisterdienste for commercial, institutional, and heritage properties. Services are delivered directly by own trained staff and specialized equipment (Kärcher sweepers, Jöst Floor Sander, Orbot SprayBorg, deionized-water PV systems, boom lifts), priced via individual quotation, and backed by Qualitätsverbund Gebäudedienste certification and 24/7 emergency availability.

Product overview

Nock GmbH is a building cleaning and facility management company based in Karlsruhe, Germany, offering a comprehensive portfolio of cleaning services. The company operates as a master craftsman business (Meisterbetrieb) with specialized equipment and trained personnel. Core services include Unterhaltsreinigung (maintenance cleaning), Grundreinigung (deep cleaning), Hausmeisterdienste (janitorial/facility management), and specialized services such as Glasreinigung (glass cleaning), Teppichreinigung (carpet cleaning), Photovoltaikreinigung (solar panel cleaning), Deckenreinigung (ceiling cleaning), and Denkmalpflege (monument conservation). The company also operates a fleet of Spezialmaschinen (specialized machinery) including Floor Sander equipment from Jöst and Orbot SprayBorg machines from Kenter, which can be rented separately. Services span residential, commercial, and industrial properties including offices, schools, hospitals, and heritage buildings.

Differentiator

Problem solved

Functional benefit

Products and services

• Hausmeisterdienste (Janitorial / Facility Management Services) Comprehensive facility management including exterior and interior cleaning, outdoor area maintenance, waste disposal, repair and maintenance services, on-call readiness, winter services, and object monitoring for commercial properties.
• Teppichreinigung (Carpet Cleaning) Professional carpet cleaning using a five-step process (vacuuming, spot treatment, shampooing, extraction, impregnation) for deep cleaning and long-lasting protection of carpets in commercial properties.
• Denkmalpflege (Monument / Heritage Building Cleaning) Specialized cleaning of monument and heritage buildings, including careful graffiti removal and restoration work using conservation-appropriate methods and solvents.
• Deckenreinigung (Ceiling and Wall Cleaning) Ceiling and wall surface cleaning using Klenz enzymatic powder, suitable for acoustic ceilings and areas with organic soiling from food preparation, grease, oil, and soot.
• Unterhaltsreinigung (Maintenance Cleaning) Regular maintenance cleaning for offices, administrative buildings, schools, kindergartens, hospitals, and other commercial properties performed at scheduled intervals.
• Grundreinigung (Deep / Intensive Cleaning) Intensive cleaning that removes adhering dirt, worn protective films, and other residues that impair surface appearance, typically performed at longer intervals.
• Glasreinigung (Glass / Window Cleaning) Professional glass cleaning for windows and frames, including metal fittings and anodized aluminum cladding, with availability of in-house boom lifts for high places.
• Photovoltaikreinigung (Photovoltaic Panel Cleaning) Solar panel and photovoltaic cleaning using deionized water and specialized enzymatic cleaners to restore performance efficiency, with reported performance improvements of 5-30%.
• Spezialmaschinen (Specialized Cleaning Equipment Rentals) Rental of specialized cleaning equipment including Kärcher ride-on sweepers for underground garages, snow removal machines, the Jöst Floor Sander for dust-free grinding and surface treatment, and Orbot SprayBorg machines for environmentally conscious cleaning in noise-sensitive areas.

Quantifiable outcome

• Photovoltaic performance improvements of 5-30% through professional cleaning with deionized water
• +1 more outcomes

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Two partnerships are on record, tiered core.

• Die Gebäudedienstleister (Verband des Gebäudereiniger-Handwerks Baden-Württemberg)coreStrategic or Co-development PartnerOfficial association of the building cleaning trade in Baden-Württemberg. Nock GmbH is part of this industry association which provides quality standards, training resources, and industry representation. The Qualitätsverbund Gebäudedienste is a protected collective brand representing environmentally and socially responsible building cleaning businesses.
• Qualitätsverbund Gebäudedienste (Quality Association Building Services)coreStrategic or Co-development PartnerProtected collective brand (geschützte Kollektivmarke) for environmentally conscious and sustainable building cleaning businesses. Members have their qualifications tested and are committed to continuous professional development. Represents master-level quality standards.

Scale indicators3 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Gegenbauer: Berlin-based facility services group with extensive German building cleaning, technical building management, and security operations. Comparable in service portfolio and commercial/institutional customer base, with broader geographic coverage than Nock.
• Dussmann Group: German facility services provider (Dussmann Service) with a strong building cleaning franchise serving commercial, public-sector, and healthcare clients. Comparable in core cleaning services and vertical coverage, and significantly larger with international footprint.
• Piepenbrock: German family-owned facility services company offering building cleaning, maintenance, and security across Germany. Directly comparable to Nock in service mix (janitorial, deep cleaning, special services) and customer segments (offices, healthcare, industry), though materially larger in scale.
• WISAG: One of Germany's largest facility services companies, providing building cleaning, technical services, and security to commercial and industrial clients. Highly comparable in core cleaning offerings, with significantly larger scale and broader geographic reach.
• Geiger Facility Management: German full-service facility management company with cleaning, maintenance, and security offerings. Directly comparable in service mix and mid-market commercial customer focus.

Broad incumbents

• Leadec: Stuttgart-headquartered industrial services provider with facility cleaning and technical services for manufacturing sites. Comparable in technical cleaning capability and German mid-market industrial customer base, though more focused on industrial than commercial cleaning.
• ISS A/S: Global facility services company with a strong German cleaning services presence. Directly comparable in core office cleaning, deep cleaning, and special services, but operates at a much larger, multinational scale.
• Stinnes Property and Facility Services: Subsidiary of STRABAG offering integrated facility services including building cleaning across Germany. Comparable in service portfolio but operates as part of a much larger construction group with broader capabilities.
• Sodexo (Germany): Global facility management and food services group with German cleaning operations serving corporate, healthcare, and education clients. Comparable in horizontal customer segmentation, with significantly broader service portfolio and international resources.
• SPIE Germany: German technical facility services provider (multi-technical services) with cleaning as one of several offerings. Comparable in serving commercial real estate and institutional clients, though more technical (HVAC, electrical) than cleaning-led.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/gebaeudereinigung.nock
• LinkedInlinkedin.com/company/hans-nock-gmbh

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Nock