Sommer & Strassburger – Expertise in stainless steel processing

We have been in the business of plant engineering and stainless steel processing for more than 50 years. Our innovative solutions and many years of experience in the field of filtration are trusted by numerous customers around the world. Whether in the pharmaceutical, food and chemical industries or in the water engineering sector, we are professionals and specialists in the development and construction of individual components and stainless steel plants. Our enormous vertical range of manufacture, our state-of-the-art production facilities, our own design department and our continuous production controls ensure our high level of quality. Our goal is always to support you with individual solutions for all your challenges.

Our location

At our location in Bretten – Gölshausen, we complete all production steps from one source in a 13,500 m² production and administration area. Approximately 160 employees work every day for our highest goal: your satisfaction. With our modern and versatile high-tech machinery, we are able to implement numerous manufacturing options, such as sawing, turning, milling, welded constructions and sheet metal processing.

Product development

Expertise in stainless steel

As a stainless steel specialist, we know what really matters when it comes to selection. We process high-quality 1.4301, 1.4571, 1.4404 and 1.4435 stainless steels as standard and attach great importance to the highest material quality. We also have manufacturing and welding approvals for special materials, such as, among others, duplex (1.4539), super duplex (1.4462) or Hastelloy (2.4602), along with mixed joints. CNC machines, 3D milling machines, a 5-axis machining centre as well as plasma and orbital welding equipment are used in our manufacturing and assembly processes. We also perform pickling and e-polishing in house. We are constantly investing in the expansion of our machinery and our capacities in order to meet the high demand, both domestically and internationally.

Our values

Well-founded know-how meets years of experience in the industry and a high standard of quality. We guarantee that every project, no matter how extensive, will be successful in a goal-oriented manner and on schedule. Our experts are familiar with industry-specific quality standards, understand your challenges and can find the right solutions. Without detours or compromises.

Approvals and certificates

Trust is good – transparency even better. We are aware of our quality and can prove it with numerous certifications. We remain transparent to you, and all our approvals and certificates can be viewed openly.


As one of the leading companies in the field of filtration, acting sustainably wherever possible is a matter of course for us. Every day, we strive to use natural resources even more efficiently, rely on environmentally friendly production processes and materials, maintain an environmentally compatible approach to chemicals along with waste, and are already reducing our energy consumption to a minimum through photovoltaic systems, among other things. The long-term goal is to continuously reduce our CO₂ footprint. Because we are aware of our responsibility.

We are committed to complying with the highest standards in terms of human rights and environmental protection. To ensure that we always meet these standards, we offer a complaints mechanism. If you have any concerns about human rights abuses or environmental risks in our supply chain, we encourage you to report them through our parent company’s complaints system. For more information and to submit a complaint, please visit the GESCO SE complaints page at the following link:


Sustainable technologies at Sommer & Strassburger

100 kW photovoltaic systems on our roofs.

Environmentally friendly mobility: E-bikes for our employees.

2023: Charging stations for e-cars at the Bretten location.

Our services

Service starts for us with your ideas and expectations as focus of our work.


  • 2022

    Stefan Kuhn becomes the new managing director.

    INEX-solutions GmbH bundles the stainless steel specialists Hubl and Sommer & Strassburger under a separate holding company.

  • 2018

    GESCO AG, Wuppertal acquires 100% of the company shares and manages Sommer & Strassburger as an independent company within the corporate group. Michael Hilpp continues to be the managing director of the company.

  • 2012

    New construction of a production hall for the turning and milling areas along with a storage hall for pipes and material

  • 2008

    Extension of the existing hall for large-scale plant engineering. New construction of a hall for the sawmill / round material storage area.

  • 2002

    Mr Strassburger departs as a shareholder. Michael Hilpp acquires his shares and manages the company together with his father, Gerhard Hilpp

  • 1994

    The company becomes certified according to ISO 9001

  • 1992

    Gerhard Hilpp becomes co-partner and managing director

  • 1986

    Relocation to Bretten-Gölshausen in a new company building in the industrial zone with 13,000 m² of land

  • 1984

    Mr Sommer departs as a shareholder.

  • 1981

    Gerhard Hilpp joins the company as an executive and assumes management of the company

  • 1974

    Founded as a trading and assembly company for brewery and cellar equipment by Messrs. Sommer and Straßburger.

Current news

INEX-solutions on the get-together LOUNGES Karlsruhe

Contact us if you would like a personal appointment or a free day ticket.