Defi Line is a SME active in the qualitative market studies

Our know-how

Recruiting the "QUALI" consumer

OPINIONS.BE, a player in this field for over 10 years now, assures our finding the right consumer, fully corresponding to the required profile. We take pride in meeting the submitted quota at our very best.

Management of on-line surveys

We are partnered with a company specialized in web applications. We can therefore create and follow-up on your on-line questionnaires. The achieved results can either be provided with or without being analysed.

Organisation of in-hall interviews

We take care of the organisation of in-hall tests requiring pre-recruitment.


 Marketing research companies as Significant, Rogil, Ipsos, Keystone, IRB, EGERIE Research, Why5, Sens21 and many other trust our expertise. We regularly work with big companies in the field of large distribution, radio, energy and insurances. The nature of our work requires that our client's name remains hidden. We can't give out this information here but we are at your disposal to do so in person.


The organisation of the "QUALI" groups

Our meeting room is at your disposition, offering the opportunity to organise focus groups in a cosy atmosphere. Our office is modest but it makes visitors feel at home. This is very important to us when it comes to making the participating consumers feel at ease.

The follow-up of meetings

You may follow the meetings through a real-time videofeed system. We can host up to 4 persons to observe meetings.


We have all the necessary equipment for you to follow a group with simultaneous translation.


We can provide simultaneous transcription of group meetings. The file will be send to you by email at the end of the meeting.


Meetings are recorded on DVD. Dialogues get translated and both languages are available on the DVD.

Our Team

Chantal Fiten


Having a marketing degree, Chantal decided to create in the year 2000. Her priority is offering high quality work in a fun, friendly atmosphere within the context of her company DEFI LINE.



Axelle Richard


Highly professional, Axelle takes care of recruiting the right consumers for Defi Line. Always at poeples service, with the warmest of smiles, she is available from Monday through Thursday, from 9AM to 5PM. Besides that, she is the best mom possible to her two children Charline and Liam.



Nathalie Nizette


Nathalie is our cornerstone in the organisation of focus groups. She masters both the technical side and the transcription, while taking care of our clients. Nathalie is also a professional photographer, which probably explains why she hates to appear in pictures.



Auriane Richard


Souriante, dynamique et professionnelle, Auriane collabore de manière efficace à l'organisation de nos focus groups.

Marylène Vandenbulcke


Une personnalité sympathique qui vous accueille dans notre bureau de Liège.


Vous serez séduits par le sens de l’organisation et le dynamisme de Marylène. Marylène se chargera aussi de la retranscription des échanges avec les répondants.

Contacter Defi Line sprl

Chantal Fiten



Defi Line sprl

Avenue Paul Hymans 125 B8

1200 Woluwe-Saint-Lambert (Brussels)

TVA : BE0 864851109