Our Tradition: staying innovative.

Since the company was founded in 1952 by Norbert Daldrop and Erwin Huber, we have been driven by a thirst for discovery. Never satisfied with the status quo, we are always looking for the best solution to meet our customers’ needs. By combining tradition with innovative approaches and ideas, we can keep our culture alive and pave the way for a promising future.


1953 Development of the “Aerosol”

The Aerosol, an air humidifier, is the cornerstone of the company. There are also corrosion test chambers and climate chambers.

1963 Customized air conditioning

Air conditioning becomes increasingly important and is used in hotels, hospitals, office buildings and schools. Our own duct production contributes to this.

1974 Growing customer base

Demanding large-scale projects increase for industry clients. Focus on industry needs and requirements
strengthens our market position.

1977 First international projects

Air conditioning systems for government buildings, schools, mosques and residential complexes are built in Saudi Arabia. Saudi Daldrop Co. Ltd. is founded.

1978 Change in management

Following the death of company founder Norbert W. Daldrop, there is a smooth transition at the top of the
company. Ferry Zeiner, who has been with the company since 1968 and has long been the second in
command, is the guarantor of continuity and stability. In 2016, he is awarded the Rietschel diploma in recognition of his services to the heating and airconditioning industry.

1983 First cleanroom project

Ferry Zeiner makes a significant strategic change by broadening our focus from air conditioning to cleanroom technology. This opens up exciting opportunities for us to grow and strengthen our position in the market.

1984 Pioneering project

Our successful VARIPRO® system evolves from the large-scale realization of the most demanding cleanroom class for IBM Germany. In recognition of our special achievements, we receive an award from German Chancellor Dr. Helmut Kohl.

Founding of Daldrop Service GmbH and Daldrop Technik s.r.o.

1995 Continuity and international growth

Ferry Zeiner retires and Josef Oswald, with the company since 1972 and Managing Director since 1986, becomes CEO. He defines the SHELMEQ® brand. From now on, under his leadership, the company has a strong international orientation. In
recognition of his services to the BS industry and his many years of commitment to the BTGA, he is awarded the Rietschel Diploma in 2017.

1996 First pharmaceutical cleanroom ceiling

For the vaccine plant in Dessau, Germany, we develop the PH 80 walkable pharmaceutical ceiling, which is installed over an area of more than 3,000 square meters.

1997 Going high

We build the highest cleanroom on the summit of Cerro Paranal, 2,600 meters above sea level in Chile for the European Southern Observatory (ESO).

A new generation of Varipro filter fan units (FFUs) with EC drive technology is developed and we supply and install 3,600 FFUs for a project at IBM in Ireland.

Daldrop Ireland Ltd. is founded.

1998 Management Strengthened

Klaus Golla, with the company since 1983, is appointed to the management board.

1999 Expansion

A new production building is built in the Neckartailfingen industrial estate.

2001 Expanding into new markets

Founding of Daldrop Singapore Pte. Ltd.

2002 Introduction of SHELMEQ®

The SHELMEQ® brand is introduced to define our core business in cleanroom technology. The SHELMEQ® principle describes our integrated services in TGA and cleanroom construction.

2005 New dimensions

In Puerto Rico, we build cleanrooms with ceiling heights of up to 14 meters for (now Pfizer).

2008 Awards

Our customer IDT Biologika’s vaccine plant, one of the most modern production facilities in the world, wins the Facility of the Year Award 2008 – Operational Excellence. The award specifically acknowledges the transparency of the production process.

other awards

2011 Architecture and Technology

Transparency in a creative form combined with modernity and technical progress are the requirements of a global pharmaceutical company for its new laboratory building in Basel.

Founding of Daldrop Swiss AG.

2012 Extended know-hows

Instrumentation and Control specialist, MET – Müller Elektrotechnik GmbH joins the group.

2012 Global expansion

Entry into the American market with the founding of Daldrop USA LLC and a joint venture with SBB Inc.

2015 Steady growth

A further 2,600 m² production building is built on the Neckartailfingen industrial estate.

2018 Breakthrough in the USA

The successful joint venture becomes a subsidiary and serves the American market as Daldrop SBB LLC. Move to own buildings in Newburyport MA and Syracuse NY and start of production of standard components.

2021 Bundled expertise

MET and Daldrop Service GmbH merge to form a new center of excellence for automation and control technology, Daldrop Automation + Service GmbH.

2022 New focus

The new company, Daldrop Process GmbH, specializes in the design and manufacture of process and ultra-pure media technology for the biotech and pharmaceutical industries, from the design stage right through to customized, turnkey solutions.

2023 New management

Josef Oswald and Klaus Golla retires. Jochen Müller, a member of the Executive Board since 2012, takes over as CEO. Christian Hage, who has been a managing director since 2007, remains CTO and Anett Oswald-Schatz, who has been with the company for 20 years, takes over management responsibility as CFO. This continuity allows us to build on our strengths.

Norbert Daldrop
Norbert Daldrop
Ferry Zeiner
Ferry Zeiner
Josef Oswald
Josef Oswald

SHELMEQ®: The Modular Cleanroom System

Modular, quick to implement and cost-optimized: with SHELMEQ® we offer you a system that includes all the essential factors and components for your cleanroom – and at the same time is optimally tailored to your individual requirements. For you, this means maximum reliability in the planning, implementation and use of your cleanroom.

SHELMEQ Konzept für Ihren Reinraum