The Company

A pioneer in interactive advertising and marketing, the 1000mercis group aims to provide innovative solutions for companies wishing to optimize their advertising and marketing campaigns via interactive media (Internet, mobile, social networks, etc.).

By offering a solution that combines client acquisition and retention strategies, 1000mercis has quickly established itself as a key player in this new market. With the acquisition in May 2008 of Ocito, a specialist in mobile phones advertising and marketing, 1000mercis strengthened its position in these media by combining Internet and mobile markets. 1000mercis is listed on Alternext Paris – a market belonging to the NYSE Euronext group – and has obtained the OSEO-Anvar label.

In 2013, 1000mercis generated revenue of €40.3 million and net income of €6.6 million.

Date of creation:
Europe, USA
Euronext Growth
Followed by:
Vincent Bazi
Vehicles affected:
  • FCPI NextStage Développement 2006
  • FCPI NextStage Développement 2007
  • FCPI NextStage Découvertes 2008
  • FCPI NextStage Découvertes 2009 2010
  • FCPI NextStage CAP 2016
  • FCPI NextStage CAP 2017 ISF
  • FCPI NextStage CAP 2017 IR
  • FCPI ISF NextStage CAP 2018
  • FIP NextStage Transmission 2006
  • FIP NextStage Transmission 2007
  • FIP NextStage Références 2008
  • FIP NextStage Convictions
Yselys Costes
Yselys Costes
Chief Executive Officer

Yselys Costes has a Master’s in Management Sciences and a post-graduate degree in Marketing and Strategy from Université Paris IX Dauphine. A researcher in interactive marketing, she was invited to the Harvard Business School and teaches interactive marketing at several establishments (HEC, ESSEC, Université Paris IX Dauphine).

Yseulys is the founder of 1000mercis and has been its Chief Executive Officer since February 2000.

She is the author of many books and articles on the topic of online marketing and databases. She was also the IAB France Coordinator (Interactive Advertising Bureau) for two years.

Thibaud Munier
Thibaud Munier
General Manager

Thibaut Munier received his first degree from the Ecole Supérieure de Commerce in Lyon. He has a post-graduate degree in Marketing and Strategy from Université Paris-Dauphine and an MBA from the University of Texas. He was previously the Relationship Marketing R&D Manager at Air France responsible for customer data mining. He coordinated Direct Marketing campaigns for the members of the Fréquence Plus program from 1998 to 2000. A specialist in quantitative marketing, he has also done research in the Université Paris IX Dauphine marketing research center. He is the author of several books. He is the co-founder of the company and has been General Manager since its creation in 2000.

Thibaut is a member of the Board of Directors of Renaissance Numérique.