R. Nussbaum AG
Swiss family-owned developer, manufacturer and direct distributor of fittings and systems for sanitary and heating technology, headquartered in Olten.
Last updated September 29, 2026
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Overview
R. Nussbaum AG is a Swiss developer, manufacturer and direct distributor of fittings and systems for sanitary and heating technology, headquartered at Martin-Disteli-Strasse 26 in Olten. Founded in 1903 by Marie and Rudolf Nussbaum-Bürgi as a trading business for fittings and plumbing tools, the company is today run by the fourth generation of the founding family and remains a privately held Swiss family business. It produces and sells valves for water distribution in buildings and public facilities, parks and gardens — including shut-off valves, pressure reducers, safety valves, fine filters, limescale protection devices and pipes — and also distributes fittings for gas distribution as well as for cooling and refrigeration circuits and compressed-air installations. Nussbaum positions itself as a provider of holistic sanitary and heating solutions, combining decades of experience with continuous innovation. Its systems are designed to adapt flexibly to project requirements and to ensure maximum safety in planning and installation. The company emphasises drinking-water quality, energy efficiency and sustainability, and offers a broad range of high-quality sanitary products and system solutions. A significant part of the Nussbaum range is manufactured in its own production facilities in Switzerland, focusing on selected manufacturing processes based on specific expertise that enable market-appropriate product prices. The company reaches the market through its own branch network — eighteen branches across Switzerland — and through direct sales via its own online shop. This direct contact allows feedback from the market to reach the Nussbaum headquarters quickly and unfiltered, so that input from professionals on the construction site flows into improvements and further developments already at the project-design stage. Nussbaum also provides services to sanitary installers, including individual advice, practical training, personal support, commissioning, maintenance and repair services, and a 24/7 emergency service for the Aquapro-Ecotherma. Among its notable product lines are Optipress-Industry, a leading press system newly offered for industry and commerce; Optiflex-Profix; and the Aquapro-Ecotherma heat-pump water heater. In 2007 the company launched what it describes as the world's first nickel-free stainless-steel pipe generation, and in 2009 it introduced Optiflex-Profix. Revenue exceeded CHF 170 million for the first time in 2010. The company is an active member and partner of various industry associations, including suissetec, the Verband Schweizerischer Armaturenfabriken (URS), the Solothurn Chamber of Commerce, the Olten Industry and Trade Association, Swissmem and Swiss Family Business.
History
The company was founded in 1903 as a trading business for fittings and plumbing tools by the married couple Marie and Rudolf Nussbaum-Bürgi in Olten. Four years later, in 1907, it began manufacturing its own products in a foundry. In 1920 the business was converted into a joint-stock company under the name R. Nussbaum & Co. AG. After Rudolf Nussbaum's death, the company passed to his four sons in 1928. They expanded the business and in 1968 handed over the operation — by then grown to 300 employees — to the third generation. The generational change at the end of the 1960s also brought a strategic shift: whereas small series had previously been produced, under the new leadership the company concentrated on the segment of building, industrial and laboratory fittings. Production facilities were subsequently expanded and a Switzerland-wide branch network was built up. At the end of 2002, the fourth generation — Dr. Roy Nussbaum and Urs Nussbaum — took over overall operational responsibility as delegates of the board of directors. Under the new leadership the company was continuously developed further: an automated central warehouse was commissioned in 2004, a new production plant in 2009, and the customer house "Optinauta" in Trimbach near Olten in 2011. New branches were opened in Gwatt-Thun (2008), Zug (2009), Buchs-SG (2011) and Winterthur (2014). Product innovations — such as the world's first launch of a nickel-free stainless-steel pipe generation in 2007 and Optiflex-Profix in 2009 — helped revenue exceed the CHF 170 million mark for the first time in 2010. At the beginning of 2012 the management board was expanded to six members with Michael and Andreas Nussbaum, also of the fourth family generation. Today the company remains a fourth-generation family business headquartered in Olten, with eighteen branches and its own online shop, and a significant part of its range manufactured in its own production facilities in Switzerland.
- 2014
New branch opened in Winterthur.
- 2012
Management board expanded to six members with Michael and Andreas Nussbaum.
- 2011
Customer house "Optinauta" in Trimbach near Olten opened; branch opened in Buchs-SG.
- 2010
Revenue exceeded CHF 170 million for the first time.
- 2009
New production plant commissioned; Optiflex-Profix launched; branch opened in Zug.
- 2008
New branch opened in Gwatt-Thun.
- 2007
World's first launch of a nickel-free stainless-steel pipe generation.
- 2004
Automated central warehouse commissioned.
- 2002
Fourth generation (Dr. Roy Nussbaum and Urs Nussbaum) took over operational responsibility.
- 1968
Handed over to the third generation; strategic focus on building, industrial and laboratory fittings.
Products and positioning
Holistic, efficient and sustainable sanitary and heating solutions for professionals, backed by Swiss manufacturing, direct distribution and comprehensive services.
Optipress-Industry
Leading press system, newly also for industry and commerce.
Optiflex-Profix
Press fitting system used millions of times.
Aquapro-Ecotherma
Next-generation heat-pump water heater, with 24/7 emergency service.
Therm-Control
Intelligent single-room control for heating.
Nickel-free stainless-steel pipes
World's first nickel-free stainless-steel pipe generation, launched 2007.
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