GRG Die Gebaudereiniger

What GRG Die Gebaudereiniger does

GRG Die Gebäudereiniger is a third-generation, family-owned German building cleaning services company headquartered in Berlin, founded in 1920 as "Großberliner Reinigungs-Gesellschaft" and currently led by managing partner Heiko Schwarz under the legal entity GRG Services Berlin GmbH & Co. KG. The company provides professional building cleaning across multiple verticals — offices and administrative buildings, luxury hotels, healthcare and hygiene, industrial and clean-room, cultural and entertainment venues, glass and solar installations, and special cleaning — through 13 wholly-owned regional subsidiaries covering all major German metropolitan regions, supported by approximately 3,400 employees and generating €104M in 2024 revenue.

The technology stack overlays traditional contract cleaning with the proprietary GRGNow demand-based cleaning system (battery-operated IoT door sensors plus a wireless, app-free GRG-Buttonboard for real-time service requests), Cobotics cleaning robots deployed alongside human staff, a Cleanticket digital documentation system, and chemical-free ozonated-water cleaning. The business model is B2B direct enterprise sales, quote-based pricing on multi-year recurring service contracts, with lead generation through a website contact form and free 30-minute consultation meetings, regional sales managers across the 13 locations, and named sales leadership including Birte Reimann (Sales Director Rheinland & Hessen) and Bernhard Jüngst (Head of Sales Hamburg). Customer concentration is distributed across at least seven verticals including hospitality (Hilton Berlin, InterContinental Berlin, Pullman Berlin Schweizerhof, Chateau Royal, Hotel Luc), diplomatic and government (British Embassy Berlin, BDA), industrial and automotive (Autostadt/VW, B. Braun Melsungen), research and education (Fraunhofer IZM, DLR Göttingen, Helmholtz UFZ, Universität Bielefeld, Hasso Plattner Institut), cultural and entertainment (Stage Entertainment, Friedrichstadt-Palast, Berliner Ensemble, Hamburgische Staatsoper), aviation (Hamburg Airport), and media (Axel Springer).

The compliance and ESG posture is unusually deep for a mid-sized German services firm: ISO 9001:2015, ISO 14001:2015, ISO 45001:2023, HACCP, EMAS, EcoVadis Silver (top 15%, valid until March 2026), UN Global Compact Sustainable Suppliers certification, Lieferkettensorgfaltspflichtengesetz compliance, GHG Protocol verification for 2021 and 2023, and Gütegemeinschaft anti-graffiti certification. Recognition includes the Ludwig-Erhard-Preis (2006), Qualitätspreis Berlin (2012), Integrationspreis Reinickendorf, and CrefoZert creditworthiness certification (2023). The company has no external investors, no parent, no M&A history, and no disclosed funding rounds, operating exclusively in Germany as a wholly independent family enterprise.

Name

GRG Die Gebaudereiniger

Legal name

GRG Services Berlin GmbH & Co. KG

Website

https://grg.de

Company type

Private

Founded year

1920

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

GRG is a third-generation family-owned German building cleaning company founded in 1920, providing professional cleaning services to enterprise B2B clients across hotels, healthcare, offices, industry and cultural venues, with €104M revenue and 3,400+ employees in 2024.

Ownership category

akta.pro rank

Headquarters

HQ city

Berlin

HQ country

Germany

HQ region

Europe

Offices13 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Professional Building Cleaning Services: B2B commercial cleaning services with long-term contracts. Services include office cleaning, hotel cleaning, healthcare hygiene services, industrial cleaning, glass and solar panel cleaning, and special cleaning. Revenue generated through recurring service contracts with enterprise clients across Germany.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

GRG provides professional building and facility cleaning services to commercial, public, and institutional clients across Germany. Service categories include office cleaning, hotel cleaning, healthcare and hygiene cleaning, industrial cleaning, culture and leisure venue cleaning, glass and solar-panel cleaning, and special-purpose cleaning. Operations are supported by 3,400+ employees and 13 regional locations in Germany.

Product overview

GRG Services is a professional building cleaning services company offering comprehensive cleaning solutions across Germany. The core product is GRG Services, which provides standardized and customized cleaning services for offices, hotels, healthcare facilities, industrial sites, cultural venues, and specialized cleaning needs. GRGNow serves as a technology-enhanced add-on module that uses sensor technology and wireless buttonboards to enable demand-based, real-time cleaning instead of traditional scheduled cleaning. The company also utilizes the Cleanticket-System internally for digital quality control and documentation. Services include Büros & Verwaltungen, Hotelreinigung, HygieneServices, Industriereinigung, Kultur und Freizeit, Glas und Solaranlagen, and Sonderreinigung.

Differentiator

Problem solved

Functional benefit

Brands

• GRGNow: Demand-based cleaning solution using sensor technology and buttonboard for real-time cleaning needs.

Products and services

• Office Cleaning

Quantifiable outcome

• 104 million EUR revenue generated in 2024
• +4 more outcomes

Named customers29 records

Segments6 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Two partnerships are on record, tiered minor and core.

• Brands FashionminorStrategic or Co-development Partner · 1 January 2019Sustainable partner for service dress production. Since 2019, all ordered men's and women's T-shirts are certified with Fairtrade, GOTS, and Green Button labels.
• UN Global CompactcoreStrategic or Co-development PartnerGRG participates in UN Global Compact, committing to sustainable and responsible business practices aligned with UN principles.

Scale indicators6 records

Recent moves10 records

Expansion highlights5 records

Broad incumbents

• Compass Group: Global contract foodservice and support services company with cleaning and facility services operations in Germany. Larger incumbent operating across cleaning and adjacent services for enterprise clients.
• Strabag Property and Facility Services: Facility services subsidiary of Strabag providing integrated facility management including commercial cleaning. Comparable to GRG in office and industrial cleaning contracts, with broader infrastructure services portfolio.
• CWS Group: European facility services provider offering hygiene, mat services, and commercial cleaning. Comparable to GRG's mat services and hygiene offerings, with overlap in German enterprise and commercial cleaning markets.
• ISS A/S: Global facility services leader with significant German operations offering cleaning, workplace, and technical services. Broader incumbent that competes with GRG on large enterprise cleaning contracts across multiple geographies.
• Sodexo: Global facility management and food services company with extensive German commercial cleaning operations. Competes with GRG in office, hospital, and university cleaning but operates at a much larger scale and broader service portfolio.

Direct peers

• Piepenbrock: German family-owned facility services company offering building cleaning, property services, and security. Competes directly with GRG in commercial cleaning for offices, hotels, and industrial customers in Germany.
• Gegenbauer: Berlin-based facility services group offering commercial cleaning, building services, and security in Germany. Directly comparable to GRG as a German-headquartered competitor with similar enterprise and public-sector client base.
• Dussmann Group: Berlin-based facility services company providing building cleaning, catering, security, and technical services. Directly comparable to GRG in commercial cleaning services for offices, hotels, and institutional clients, with strong German market presence.
• Apleona Germany: German facility services provider (part of Apleona Group, backed by private equity) operating in integrated facility management including cleaning, technical services, and maintenance. Direct competitor to GRG in commercial cleaning for enterprise and public-sector clients.
• Wisag: One of Germany's largest facility services groups, providing commercial cleaning, technical building services, and security across Germany. Directly comparable to GRG in scope (office, hotel, industrial cleaning), customer base (enterprise), and German market focus.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries13 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 GRG Die Gebaudereiniger