Claire Leost

Chairman at

CMI Digital

Consumer Services

Technology Services

Commercial Services

Profile

Claire Leost currently works at CMI Digital, as Chairman, CMI Publishing SAS, as Chairman, and Dailymotion SA, as Director.
Ms. Leost also formerly worked at CMI Media SAS, as Chief Executive Officer, Prisma Media SAS, as Chairman from 2021 to 2025, CMI France SAS, as Chairman from 2019 to 2021, Pitcheo SARL, as Manager, and Vivendi SE, as Member-Management Board.
Ms. Leost received her undergraduate degree in 1997 from Sciences Po and undergraduate degree in 1999 from École des Hautes Études Commerciales de Paris.

Claire Leost active positions

Companies	Position	Start
CMI Digital CMI Digital Information Technology ServicesTechnology Services Engages in providing computer programming services	Chairman	-
CMI Publishing SAS CMI Publishing SAS Publishing: Books/MagazinesConsumer Services Publishes periodicals	Chairman	-
Dailymotion SA Dailymotion SA Data Processing ServicesTechnology Services Owns and operates an online video-sharing portal	Director/Board Member	-

All active positions of Claire Leost

Former positions of Claire Leost

Companies	Position	End
Prisma Media SAS Prisma Media SAS Publishing: Books/MagazinesConsumer Services Publishes magazines, online video and daily digital audience	Chairman	27/08/2025
CMI France SAS CMI France SAS Publishing: Books/MagazinesConsumer Services Publishes magazines	Chairman	01/09/2021
VIVENDI SE	Corporate Officer/Principal	-
CMI Media SAS CMI Media SAS Advertising/Marketing ServicesCommercial Services Provides advertising agency services	Chief Executive Officer	-

See the detail of Claire Leost's experience

Training of Claire Leost

Experiences
Positions held

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Inactive

Listed companies

Private companies

See the detail of Claire Leost's experience

Connections

1st degree connections

1st degree companies

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Female

Members of the board

Executives

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Linked companies

Private companies	9
Vivendi SE Vivendi SE Media ConglomeratesConsumer Services Provides media and telecommunication services	Consumer Services
Sciences Po Sciences Po Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
École des Hautes Études Commerciales de Paris École des Hautes Études Commerciales de Paris Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Prisma Media SAS Prisma Media SAS Publishing: Books/MagazinesConsumer Services Publishes magazines, online video and daily digital audience	Consumer Services
Dailymotion SA Dailymotion SA Data Processing ServicesTechnology Services Owns and operates an online video-sharing portal	Technology Services
CMI Media SAS CMI Media SAS Advertising/Marketing ServicesCommercial Services Provides advertising agency services	Commercial Services
CMI Digital CMI Digital Information Technology ServicesTechnology Services Engages in providing computer programming services	Technology Services
CMI Publishing SAS CMI Publishing SAS Publishing: Books/MagazinesConsumer Services Publishes periodicals	Consumer Services
CMI France SAS CMI France SAS Publishing: Books/MagazinesConsumer Services Publishes magazines	Consumer Services