Employees & staff

Our team

On this page we would like to introduce you to our SEVentilation team. To show you the various company divisions and present to you the different contact persons.


The company headquarters in Kahla is home to the management with the two managing directors Dipl.-Wirtsch.-Ing. Nico Schellenberg and Dipl.-Wirtsch.-Ing. Alexander Buchspieß. The development department is also located there, headed by Nico Petri. The highlight of this division is our in-house sound laboratory, where we can carry out measurements on the intrinsic noise and the external sound insulation of our ventilation systems.

The production of our ventilation systems around the production manager André Katzer is also located in the heart of Thuringia. Here, the employees from the production team can also contribute to improving processes and procedures and keeping the quality of our products constantly high.

People in the picture from left to right are: Mr. Nico Petri (Head of Development), Mr. Buchspieß (Managing Director/Owner), Mr. Schellenberg (Managing Director/Owner), Ms. Wesotowski (Head of Finance and Accounting) and Mr. André Katzer (Production Manager).

Sound insulation expertise for you!

Sound insulation expertise for you!

At the location in Kahla, we work very closely as a team and across departments. The advantage is the very short communication channels and the flat hierarchies. Ideas and optimisations can thus be implemented quickly and easily.

In order to specialise even further in the area of sound insulation and to provide you with the best possible products, we have had Mr Harald Hacker and Mr Sebastian Hacker on board since the beginning of 2019. With years of experience and countless projects in the field of soundproofing, these two sales representatives are true experts in their field. Feel free to contact our sound insulation experts for your projects.

Comprehensive care!

Alexander Buchspieß (Dipl.- Wirtsch.-Ing.) is the sales manager at the Kahla site. Our internal sales offices are located in Lüneburg, in Plochingen near Stuttgart, in Berlin, in Beilngries, in Riedbach-Humprechtshausen, in Naumburg and in Kahla. We also have many other sales partners in your region. You are welcome to meet our sales teams at a local trade fair. These are, for example, GET Nord in Hamburg or GETEC in Freiburg. Here we will be happy to advise you and show you our comprehensive service portfolio consisting of competent advice, planning support and detailed positioning proposals.

Comprehensive care!

Who we are

The seventilation team - dynamic, experienced, growing and from the region

Our teams have a lot to offer. We are made up of various members of all ages. This enables an efficient transfer of knowledge with a dynamic way of working at the same time. In addition we have been growing for years, which is also reflected in the number of employees. SEVentilation now employs over 20 employees. We give people a chance to contribute their ideas and energy. We increasingly rely on employees from the region, for example, in order to be able to introduce regional specialities into the distribution of our products. Furthermore, short working distances for our employees are also important to us.

We help

Dynamic, experienced, growing and from the region

We hope we have given you an insight into our team and the way we work. You are welcome to visit one of our sales offices to meet us in person. There you can also see, touch and hear our decentralised and centralised ventilation systems.