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.

You wish to have more information?

Are you interested in our services? Please call us!

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

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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).

Location-ranking for Bonn

In addition to our flexible service the Business Center benefits from good traffic connections and other important location advantages. In the current location-ranking of Cash Immobilien Bonn we occupy the second place nationwide ahead of Munich, Cologne, Hamburg and Dusseldorf. PDF