About us

We are here for you.
Since 1987.

For more than 30 years, Siliciumbearbeitung Andrea Holm GmbH has been an important and reliable supplier and partner for the Semiconductor-, Coating- and Optical industry as well as many internationally recognized universities and institutes.
Due to the continuous development of our capacities and manufacturing processes we are one of the leading companies in the field of processing silicon and similar ceramic materials.

Our goal is to identify and implement the needs of our customers with highly qualified employees in order to contribute our part to their competitiveness and success in a rapidly changing market. It is a matter of course for us to continue to develop our manufacturing capabilities and processes and to always be at the cutting edge of technology in order to guarantee you the best possible quality, most cost-effective solution and reliable delivery times.

Starting with the problem definition and solution finding, continuing to prototype production and ending with series production, we are able to find the best possible solution and implement it as quickly as possible due to the flexibility of our employees and technology. Due to our many years of experience and continuous further development of our procedures and processes, as well as the constant further training of our employees, we have been able to always confirm the trust of our customers.

August 25

2022 – Second location in Julbach is created.

Office and production area of approx. 2,500 m

August 25

2019 – New building to connect two existing production halls

Creating additional production area on now 2500 qm. To redesign and centralize the social rooms. Creation of a new polishing room of approx. 100 qm.

August 25

2017 – New construction (outsourcing of the existing warehouse) of a raw material storage hall (600 qm).

August 25

2015 – Construction of a clean room

Construction of a clean room to meet the constant demands of our customers.

August 25

2008 – New construction of a production hall

Construction of a new production hall to expand the CNC machining to a total of 2000 qm.

August 25

2000 – Expansion of the production area to 1500 qm

August 25

1998 – Expansion of the production area to 1000 qm

August 25

1993 – Addition of an office building and expansion of the production area

August 25

1989 – Relocation

Relocation to Tann, Gigerenz

August 25

1987 – Foundation of the company

Our history.

Siliciumbearbeitung Andrea Holm GmbH was founded in 1987 by Dr. Claus and Andrea Holm.

Claus Holm had been interested in silicon since his student days, which he continued after his doctorate at the University of Munich at Wacker, a world market leader in the production of silicon.

In 1987 the decision was made to found Siliciumbearbeitung Andrea Holm, which from the beginning focused on the mechanical and chemical processing of silicon, quartz and ceramics. This goal was also pursued and optimized by the entry of the two sons Hans and Florian Holm and has made the Holm group of companies a significant supplier to the Semiconductor and Optical industries.