We consider ourselves as a new kind of service provider – and have done so for 30 years already.

In our company you will find an optimum relationship between company and office. It is our aim to support you in all secretarial tasks and organisational matters. In the time you have saved you can work undisturbed in your special field where you are an expert.

Wilfried Thünker
Wilfried Thünker

Your customers will be pleased. And so will your turnover.

DER THÜNKER is more than just a secretarial office service. Take advantage of our manifold services. Be one big step ahead of your competitors and allow us to advise you.

The Team

Well-trained employees and an extensive experience in an established team, these is the basis for our work – and at the same time your success. The switchboard is the business card of a company; therefore your customers are also welcomed here in a friendly way and politely. Constant further training and the handling of modern communication systems supplement the high professional qualifications of our employees. Besides specialist training and studies our staff has knowledge of several languages in order to be able to provide perfect assistance for you in your activities. If required, we are also available for you on Sundays and on bank holidays.


DER THÜNKER office service shows commitment beeing a member or sponsor in many regional and national networks and associations.

For many years, Wilfried Thünker was an active member of the Economic Juniors , as well as of the workshop business founding at the Chamber of Commerce and Industry Bonn / Rhein-Sieg. He knows the difficulties and challenges not only of founders. Therefore we developed particular offers for business founders, freelancers and other small enterprises which adapt to their needs, such as our special starter service for founders and small businesses. Please consider also our other service packages, as well as the possibility to have your business address with us.

Simply visit us for a free and non-committal counselling interview.

You wish to have more information?

Are you interested in our services? Please call us!

Tel.: +49(0)22826730
Fax.: +49(0)2282673203

Contact form
Contact & How to find us

We guarantee data protection

DER THÜNKER and all commissioned and involved people in this context, have to keep the rules on handling of personal-data pursuant to § 5 BDSG as well as to the confidentiality obligation under § 203 StGB and § 43a para 2 of the Bundesrechtsanwaltsordnung (Federal Attorney Regulation).

buero-bonn.de wird überprüft von der Initiative-S

Offices and service on demand

exclusive and professional, discreet and secure

Location Ranking for Bonn

In addition to flexible service our business center profits from a good traffic connection and other location benefits.