Havas announces the acquisition of Unnest, a French data consulting and engineering firm with deep end-to-end expertise in designing, building, and deploying data platforms. This strategic addition strengthens Havas Media Network’s global data, technology, and analytics arm, CSA, reinforcing Havas’ commitment to harnessing technology and data as part of its Converged.AI strategy to help brands successfully navigate transformation challenges.
Founded in 2021 by Nicolas Chollet and Mehdi Moreau, Unnest has established itself as a respected player thanks to its specialist expertise in technology infrastructures, its ability to deliver high–value-added projects, and its implementation of best-in-class tech solutions. With teams of experts specialized in Data & Cloud Engineering (Google Cloud Platform, Azure, Snowflake, Amazon Cloud, etc) and AI, Unnest strengthens the group’s Business Science practice and significantly boosts its ability to deploy data strategies at scale. Unnest serves an impressive portfolio of top-tier clients spanning retail, travel, beauty, automotive, and luxury industries
This acquisition will help foster strong synergies with CSA Data Consulting, DBi, and TED Consulting by integrating Unnest’s specialist expertise at the heart of the group’s Business Science solutions, creating a combined team of 120 data experts in France.
Supported by CSA’s global network, these solutions will be rolled out in France and internationally across companies from all sectors.
Unnest is joining the Havas group while retaining its agility and technological DNA, benefiting from the group’s strategic partnerships and its globally recognized clients.

























