Guillaume Cossou

Guillaume Cossou serves as Co-CEO / Co-Président at Publicis Sport. Publicis Sport operates in the marketing & advertising sector with approximately 46.0 employees. The company is headquartered in Paris, Ile-de-France.

Industry & Role Insights

• • MessageCEO tracks 9,879 executives in the marketing & advertising sector.
• • 4,101 executive contacts are available in Ile-de-France.
• • Our database includes 201,468 c suite-level executives.

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Jose Vivar Group CTO-CIO at 014 Media

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David Amoros CEO, Creative Director at 023. Think. Create. Produce.

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David Puig CEO, Creative Director at 023. Think. Create. Produce.

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Mike Davison Group CEO at 1000heads

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Emily Nicholson Chief Operating Officer at 100 Pound Social

Outreach Guidance — marketing & advertising Sector

Executives like Guillaume Cossou in the marketing & advertising sector receive targeted outreach from sales teams, recruiters, and investors. To stand out, personalize your message with industry-specific context and a clear, specific value proposition relevant to their role at Publicis Sport.

Guillaume Cossou's Position in the MessageCEO Database

• •Guillaume Cossou is 1 of 1 verified executive contact we track at Publicis Sport.
• •9,714 verified executive contacts in marketing & advertising are in the MessageCEO database.
• •4,045 verified executive contacts in Ile-de-France are in the database.
• •106 verified contacts work at marketing & advertising companies in the 46.0 employee range (same size as Publicis Sport).

Executive contact data compiled from public business filings, LinkedIn public profiles, company press materials, and verified outbound email testing. We do not publish personal addresses or sensitive identifiers. Methodology & sources · Removal requests handled at /remove-info · Updated August 2026.

How do I reach Guillaume Cossou directly?

Guillaume Cossou's verified email address is available to MessageCEO Pro subscribers. They currently serve as Co-CEO / Co-Président at Publicis Sport. Access direct contact info to skip gatekeepers and reach the decision maker.

What company does Guillaume Cossou work for?

Guillaume Cossou is Co-CEO / Co-Président at Publicis Sport, a company in the marketing & advertising sector with 46.0 employees. The company is based in Paris, Ile-de-France.

Can I pitch or sell to Guillaume Cossou?

As Co-CEO / Co-Président at Publicis Sport, Guillaume Cossou is a key decision-maker in the marketing & advertising sector. MessageCEO Pro gives you verified email to reach Guillaume Cossou directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is Guillaume Cossou in?

Guillaume Cossou works in the marketing & advertising industry as Co-CEO / Co-Président at Publicis Sport. MessageCEO provides verified contact information for executives across all major industries.

Is Guillaume Cossou's contact information verified?

Yes. MessageCEO verifies executive contact information through multiple data sources and regular validation checks. Guillaume Cossou's profile is kept up-to-date with the latest available information.

Last updated: August 3, 2026