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The four members of the Quadriga team are:

Claudia Heiduk

Ilka Marsh

Catherine Petersons

Gyda Thurow


Sigismundkorso 31, 13465 Berlin


Karlheinz Wedhorn


In cooperation with Armin Jaeger
Schreibschwung, Hamburg

Web Design:

Wolfgang Koehne (B.Eng), Software Development

David Crain, Support Specialist
Chesterfield, Missouri

At Quadriga – Language Experts Berlin, we are committed to making every event a success.
Quadriga is based in Berlin.
We bring a modern, professional and responsive solution for you conference interpreting needs.
Quadriga – Language Experts Berlin offer a full-service conference interpreting service throughout Germany.
We provide a two-man team of highly skilled, professional conference interpreters in the languages you require. These are in particular, German, English, French, Spanish and Russian.
The Quadriga experts are Gyda Thurow, Claudia Heiduk, Catherine Petersons und Ilka Marsh.
Our expert interpreter will help determine your specific conference application. We will custom build a system that is right for you and your budgetary needs.
To receive a quote for your next event, fill out our quick and easy Quote Form.
At Quadrigalex we have developed an extensive network of highly skilled professional conference interpreters.
Our interpreters have vast experience in simultaneous conference interpretation.
Our interpreters work in teams of two per language. This team composition is used to achieve the highest quality of interpretation for your event, meeting, congress, conference, workshop or seminar.
We pride ourselves on providing a language service with a personal touch.