The team

Mediamix team

A team's strength lies in the complementary nature of its members. But it's also their ability to dialogue, to exchange opinions and experiences, that enriches the recommendations we make. Specialists in traditional and digital media work under the same roof, without divisions or conflicts of opinion, with the sole aim of creating the most effective solutions for our customers. And when this is done in a constructive and supportive spirit, backed up by an equally committed back office, it's all the more effective.


Carine Kempf

SEO-SEA Specialist and Google Expert

With a Master’s degree in Communication Management, Audiovisual and Digital Media and more than 13 years of experience in web agencies and the industry, Carine has a real passion for the Google universe. With a Google Ads certification (Search, Video, Display) and a Google Analytics Individual Qualification, Carine exploits with brio all the resources offered by Google Analytics, Google Tag Manager and Google Data Studio. Carine’s mission is to develop new strategies and to proactively optimize them on a daily basis, while staying on top of the latest web marketing evolutions.

Adrien Imstepf

Team Leader

Adrien, after several professional experiences, notably in the banking sector, has been working in a media agency since 2019. He holds a Bachelor's degree in business economics with a specialization in digital business. In addition to his business knowledge, this gives him an in-depth understanding of digital technologies and strategies. understanding of digital technologies and strategies. Team Leader at Mediamix since 2023, he supports you on all your projects with your satisfaction as his main objective.

Laetitia Foeller

Managing Partner – Chief Digital Officer

After graduating with an Advanced Master’s Degree in Marketing Research and Decision Making from a prestigious Business School in Paris, Laetitia first worked for companies in Lithuania and England within various marketing departments. She subsequently worked as a Marketing Manager for various multinationals in Paris. She became Head of Digital at Newbase Basel in 2011 (formerly Publicitas International) before joining the Mediamix team in 2018 as Media Director/Head of Digital. She acts as the digital specialist, mainly in the food, watchmaking, lifestyle and financial sectors.

Louis Venant

Digital Media Director

Louis has been working in the digital advertising sector for over 10 years; after a career in a media agency, such as ZBO Media, and in an integrated agency at The Swatch Group, Louis set up his own agency in June 2018: Cosatic. Active on the Swiss market and internationally, Cosatic specializes in programmatic advertising, SEA, paid social media and DOOH. In March 2023, Mediamix acquired Cosatic, and Louis is now Digital Media Director on the Mediamix team.

Marie-Jeanne Jaunin

Managing Partner – CFO

After working as an accountant for various companies – fiduciary, insurance, advertising agency – Marie-Jeanne joined Mediamix in 2004 where she created an internal accounting department and became head of human resources. She now manages and coordinates administrative, financial and accounting tasks. Marie-Jeanne is also in charge of all social aspects and the staff management in a way that she considers essential: to value the human capital of Mediamix employees, where each individual is important and participates in the success of the agency.

Céliane Piccand

International Media Planner

Céliane has been working for several years for the Edipresse Publications SA group in Lausanne where she acquired a solid experience in the media and marketing worlds. She actively participated in the development of Edipub’s online activities before joining Mediamix in 2007.

Fanny Müller

Media Trader

Fanny is a Media Trader specialized in programmatic advertising, SEA and paid social media. After joining the Media Trader team at Cosatic in 2022, she continued her career at Mediamix after the acquisition of Cosatic. She currently combines her studies in Marketing at the University of Fribourg with her work at Mediamix, where she implements, manages and optimizes digital advertising campaigns for a variety of clients, both nationally and internationally.

Eve Fogli Iseppe

Assistant digital manager

With a Master’s degree in Franco-German Management and Marketing from the Sorbonne and a double degree specialising in Franco-German culture and literature, Eve has held a number of different positions, including that of Traffic Manager. A fashionista at the weekend and a digital expert full of ideas during the week, Eve’s dynamism and her perfect command of languages represent a well-vitaminated cocktail that will give a great impetus to the challenges that await us.

Raquel San Roman

Administrative Assistant

In charge of documentation and archives, Raquel joined Mediamix in 2006 where she has been supporting the administrative team since 2010.

Elio Brandolini

Médiamatician / Junior Media Trader

Elio obtained his VSB certificate with a maths-physics option in 2015. After 4 years as a college student, he started a professional reorientation with a mediamatician apprenticeship at the beginning of 2020. Fascinated by new technologies, video, photography as well as by various digital communication means, Elio has a strong passion for music. He has been playing the acoustic guitar for 12 years and has been composing since 2015 computer-based music.

Rosanna del Sordo

Accounting assistant

Rosanna started her training at a fiduciary, never leaving the world of finance since then. She joined Mediamix in 2004.

Clarisse Kouby

Business Dev. & Social Media Manager

Holder of a Federal Diploma of Advertising Technician and a Diploma in Digital Strategy, Clarisse has over 20 years of experience in traditional media with a major Swiss media group. She continues her career with Mediamix since 2018 as a media buying specialist on social networks (Facebook, Instagram, WhatsApp, LinkedIn, Twitter, YouTube). Clarisse performs Business Manager account audits, defines global strategies and their declinations per network, optimizes the performance for each platform and defines relevant campaign recommendations.

Robin Coutout

Junior Media Trader

Robin joined Mediamix in September 2023, as a Junior Media Trader. After several years' experience in sales, Robin wanted to join the media world. His curiosity and desire to push himself are real assets for Mediamix.

Henri Tripet

Managing Partner - CEO

Henri has spent his entire career in the media industry. After his first job with an advertising management agency, he worked as a Media Director at two Geneva-based advertising agencies, Bozell and Saatchi & Saatchi Business Communications. He joined Mediamix in 1996 and has been a partner since 1999. Henri has sound expertise in the watchmaking, private banking and financial sectors which represent the majority of his client portfolio.

Camille Bonneville

International Media Planner

Camille joined the Mediamix team as international media planner on September 1, 2022. She holds a Master's degree in International Trade, Marketing and Luxury Communication. Her analytical mind, emotional intelligence, active listening and interpersonal skills are essential qualities for her development within our agency. She has worked for the Paris Motor Show, Nuxe and the Majorelle press agency, among others.

Celeste Kouby

Production supervisor

Quality control




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