Our Promise

Our promise is two-fold, and always in the following order:

  1. Develop your business
  2. Develop your brand

Key Values

Our key values are responsiveness and strength:


Ecselis offers the responsiveness of a specialist player. We propose a tight structure with mainly senior experts at the center of clients’ projects. We focus on driving ROI with every campaign through real expertise and proprietary tools including data analysts and web analytics.


In addition, Ecselis offers the strength of a powerful media group. As part of Havas Group, our international team of over 320 experts managing campaigns across 38 countries benefits from global negotiation and buying strength, as well as preferred Havas technology partnerships with major companies such as Google, Adobe and Microsoft.