About Us
- Rosenthal Research is a dynamic and globally operating Data Collection Agency with offices in Barcelona and Buenos Aires. Rosenthal was founded by Jan Flechsig in 2001 with over fourteen years experience in the data collection world.
We provide high quality data for both quantitative and qualitative market research studies worldwide. Rosenthal Research has its own CATI centres, Focus Group facilities and face to face field-forces in Spain and Argentina.
50% of Rosenthal are held by Foerster & Thelen, one of Germany’s oldest and largest data collection agencies. F&T holds shares in 3 additional fieldwork agencies. This group of sister companies with F&T as the mother company is called the F+T Group and is exclusively data collection.
The F+T Group and Rosenthal have offices in Barcelona, Berlin, Buenos Aires, Bochum, Dresden, Düsseldorf, Hannover, Vienna, and also a US partnership providing access to locations in New York and Tucson (Arizona).
Our management team speaks English, German, Spanish, French, Turkish, Portuguese, Polish and Russian, and we exclusively hire native speaking interviewers from all over the world.
Rosenthal conducts in the region of 150 multi-country projects per year, employing over 400 interviewers.
Our value proposition is to be a single point of access for data collection worldwide, combining large multinational internal resources with professional coordination services.


