Hamberger Industriewerke

What Hamberger Industriewerke does

Hamberger Industriewerke GmbH is a privately held, family-owned German industrial company headquartered in Stephanskirchen near Rosenheim, Bavaria, founded in 1866. Following the Q1/Q2 2026 carve-out of its Flooring Business (HARO parquet and hard floor coverings, ~EUR 150M revenue) to Mutares SE & Co. KGaA, the company operates two divisions: Hamberger Sanitary GmbH, which manufactures toilet seats under the HARO (premium specialty retail), Cedo (home improvement/DIY), and OEM brands for global sanitary ceramics manufacturers; and a Real Estate Management and Development division handling the group's own property portfolio.

The Sanitary division is the European market leader for WC seats, producing approximately 8 million units per year and offering over 350 models with 120,000 combination possibilities through a proprietary Modular Baukasten-System, supported by patented SoftClose® and TakeOff® technologies and 120+ mounting solutions. Production is highly automated in Germany and Bulgaria, with on-site biomass and hydropower plants providing a structural energy cost advantage. The company holds long-tenured certifications (ISO 9001 since 1995, ISO 14001 since 1998, PEFC since 2002, ISO 50001 since 2012) plus Blue Angel and Climate Partner climate credentials.

Revenue is generated primarily through B2B hardware sales of manufactured WC seats, with OEM contracts and a 50%+ export share distributing volume across more than 70 countries. The company is led by Managing Directors Ralph Wonnemann and Michael Huck, employs over 1,150 people globally in the Sanitary division, and reported EUR 115 million in Sanitary revenue in 2025.

Name

Hamberger Industriewerke

Legal name

Hamberger Industriewerke GmbH

Website

https://hamberger.com

Company type

Private

Founded year

1866

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Hamberger Industriewerke GmbH is a 150+ year old German family-owned manufacturer producing toilet seats (WC seats) under HARO, Cedo, and OEM brands, serving European and global sanitary retailers and ceramics manufacturers, alongside a Real Estate Management division.

Ownership category

akta.pro rank

Product category

Toilet Seat Manufacturing

NAICS

Household and Institutional Furniture Manufacturing (33712)

SIC

Sanitary Services (4950), Miscellaneous Furniture & Fixtures (2590)

akta.pro primary industry

Restroom & Hygiene Dispensing Systems (Commercial/Industrial) (IMAHALAH)

akta.pro secondary industry

Restroom Hygiene & Consumables Services (Supplies, Dispensers, Matting) (BPABABAI)

Keywords

• Toilet seat manufacturing
• Bathroom sanitary products
• WC seat components
• Real estate management
• OEM sanitary manufacturing

Headquarters

HQ city

Stephanskirchen

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. WC Seat Manufacturing (Sanitary Division): Manufacturing and sale of high-quality toilet seats under HARO, Cedo, and OEM brands. Revenue 2025: €115 million. Sold 8 million toilet seats annually, serving as European market leader.
2. Flooring Business (Divested to Mutares): Manufacturing of parquet and hard floor coverings under HARO brand. Generated approximately EUR 150 million in revenue with operations in Germany and Bulgaria. Business divested to Mutares SE & Co. KGaA in Q1 2026.
3. Real Estate Management and Development: Professional management, value preservation, and optimization of existing properties including commercial and technical management tasks, lease administration, maintenance, and reporting. Development of new real estate projects and modernization concepts.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels5 records

Core offering

Hamberger Industriewerke GmbH manufactures and sells high-quality toilet seats (WC seats) under the HARO, Cedo, and OEM brands, producing 8 million units per year across more than 350 models in thermoset (Duroplast) and thermoplastic materials with patented SoftClose and TakeOff features. The company also provides real estate management, value preservation, and development services for commercial and residential properties. Following the 2026 divestiture of its Flooring Business to Mutares, the remaining operations focus on sanitary manufacturing and real estate.

Product overview

Hamberger Industriewerke GmbH is a family-owned manufacturing company founded in 1866, based in Stephanskirchen near Rosenheim, Germany. The company operates two primary divisions: Hamberger Sanitary (its core remaining business after the Mutares transaction) and Real Estate Management & Development. Hamberger Sanitary is Europe's leading toilet seat manufacturer, producing over 350 models across 120,000 combination possibilities under the HARO brand (premium specialty stores), Cedo brand (home improvement stores), and as OEM for global sanitary ceramic manufacturers. The company also operates the AkustikPlus acoustic flooring sub-brand. The HARO Flooring business (parquet, laminate, and design floors; German market leader) was in the process of being divested to Mutares SE & Co. KGaA as of early 2026. The company employs over 1,150 people globally and generated approximately EUR 115 million in revenue in 2025 from its toilet seat operations.

Differentiator

Problem solved

Functional benefit

Brands

• Hamberger Sanitary: Leading manufacturer of toilet seats in Europe since 1912, producing over 350 models with 120,000 different combinations. Products include WC-seats made from Duroplast or Thermoplastic with SoftClose and TakeOff technologies.
• HARO Sanitary
• Cedo Sanitary

Products and services

• Hamberger Sanitary Toilet Seats Europe's leading toilet seat product line with more than 350 models in thermoset (Duroplast) and thermoplastic materials, featuring patented SoftClose and TakeOff technologies, and offering over 120,000 combination possibilities through a modular mounting and design system. Sold under HARO (specialty retailers), Cedo (home improvement/DIY stores), and as OEM products for global sanitary ceramics manufacturers.
• Real Estate Management and Development Professional management, value preservation, and optimization of existing commercial and residential properties, covering commercial and technical management, lease administration, maintenance, and reporting, plus development of new real estate projects and modernization concepts.

Quantifiable outcome

• European market leader for toilet seats
• +3 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability4 records

Feature5 records

Scale indicators12 records

Recent moves7 records

Expansion highlights6 records

Peers

• Ideal Standard International:

Broad incumbents

• Geberit: Swiss-listed manufacturer of sanitary technology, including installation systems, piping, and bathroom fixtures. Directly comparable as a leading European sanitary equipment supplier serving overlapping bathroom installer and OEM customer channels.

Direct peers

• Roca Sanitario: Spanish-headquartered global manufacturer of bathroom ceramics and sanitaryware with worldwide distribution. Directly comparable as a European-headquartered bathroom fixture maker selling to OEMs, retail, and project channels.
• Villeroy & Boch: German bathroom ceramics and tableware manufacturer with broad European retail and project presence. Comparable as a premium German bathroom brand competing in the same sanitary fixtures and OEM supply chain.
• Toto Ltd. Japanese manufacturer of toilets, bidets, and washlets with a strong global bathroom fixtures franchise. Directly comparable as a premium toilet manufacturer with patented functional technologies competing in the same high-end sanitary seat segment.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks7 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@hambergersanitary5171
• LinkedInlinkedin.com/company/hamberger-industriewerke-gmbh
• Instagraminstagram.com/hamberger_azubis

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries2 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 Hamberger Industriewerke