Résumé

“The people who are crazy enough to think they can change the world are the ones who do.”

Steve Jobs

Global Experience:

companies of guillaume mariani

– Work experience in 9 countries (United States, Chile, United Kingdom, China…) across 4 continents (North America, South America, Europe and Asia).

– Former employers include some of the most prestigious global organizations in the world, such as Accenture (the largest consulting firm in the world by number of employees, the world leader in management and technology consulting, digital transformation and IT, with a CMT – Communications, Media and Technology practice ranked second after McKinsey), Ipsos (one of the largest market research groups in the world, competing with Gartner, Nielsen, Kantar and GfK), France Télévisions (France’s leading audiovisual group, where I worked with global media: France 24, TV5 Monde, Euronews, RFI (Radio France internationale), Deutsche Welle’s DW-TV from Germany, RTVE’s TVE Internacional from Spain, Rai International from Italy, Sky News International from the UK and National Geographic Channel from the US), SMG – Shanghai Media Group (one of China’s largest media and cultural conglomerates, with the most complete portfolio of media and related businesses in China) and the OECD-OCDE – the Organisation for Economic Co-operation and Development and OECD Publishing-Les Éditions OCDE (an intergovernmental organization with 38 member countries, working with over 100 countries across the world to help governments foster economic growth and prosperity and fight poverty, and to build stronger, fairer and cleaner societies – helping to shape better policies for better lives) but also SMEs (small-to-medium sized enterprises) and tech startups.

Founder of 4 companies during my lifetime and one non-profit association (Sorbonne Alumni in 2007). I created my first business at the age of 20.

I’ve missed more than 9000 shots in my career. I’ve lost almost 300 games. 26 times, I’ve been trusted to take the game winning shot and missed. I’ve failed over and over and over again in my life. And that is why I succeed.

Michael Jordan

Former adjunct professor of marketing, digital marketing and digital transformation and guest speaker training professionals and French and international students from all over the world in Bachelor, Master, MBA and Executive Education programs at the best schools of communication, engineering and management in France, such as CentraleSupélec – Université Paris-Saclay, EFAP, ISCOM and Université Paris 1 Panthéon-Sorbonne.

Former volunteer for several years at UNICEFthe United Nations International Children’s Emergency Fund (operating in over 190 countries and territories and in the world’s toughest places to reach the children and young people in greatest need, to save children’s lives, to defend their rights, and to help them fulfil their potential, by providing health care, childhood vaccination and immunization, nutrition, clean water and sanitation, education, and protection from violence, exploitation and abuse).


My motto: #AlwaysLearning

Global Education:

– I learned four of the most spoken global languages in the world: English, Spanish, Mandarin Chinese and Russian. My native language is French.

– Management studies and media studies at five of the most prestigious global public universities across the world: Sorbonne School of Management, Université Paris 1 Panthéon-Sorbonne (a leading public university in France), Universidad Complutense de Madrid (a leading public university in Spain), the London School of Economics and Political Science of the University of London – LSE (a leading public university in the UK), 復旦大學 – Fudan University in Shanghai (a leading public university in China), and the University of California, Los Angeles – UCLA (a leading public university in the US), all ranked among the world’s best universities for arts, humanities, social sciences and management by QS (Quacquarelli Symonds), by THE (the Times Higher Education) and by ARWU (the Academic Ranking of World Universities, known as the Shanghai Ranking).

– I hold the Sorbonne Associate Degree in Economics and Management, Management major, the Sorbonne Bachelor’s degree in Management, and four top-tier master’s degrees: MiM, MSc, MA and MBA. Two master’s degrees from France, one from the United Kingdom and one from China.

– Including the LSE MSc in Global Media and Communications (London), ranked first among the best master’s degrees in “Corporate Communication” in Western Europe by Eduniversal for many years, and the Fudan MA in Global Media and Communications (Shanghai), ranked first among the best master’s degrees in “Corporate Communication” in Far East Asia by Eduniversal for many years.

2007 valedictorian (top of the class/major de promotion) of the Sorbonne Master’s in International Strategic Management (MSI), ranked 1st or 2nd among the best master’s degrees in “Strategy and Consulting” in France, ahead of HEC Paris, ESCP, EDHEC and emlyon, by Eduniversal for many years.

2017 valedictorian (top of the class/major de promotion) of EFAP’s Specialized MBA in Digital Marketing & Business (DMB) #InsideDigitalRevolution, ranked 2nd among the best MBAs/master’s degrees in “Digital Marketing and e-Business” in France by Eduniversal for many years (including in 2024).

The best leaders never stop learning.”

Donald T. Phillips

– I completed online courses on AI (artificial intelligence), global business, marketing and strategy at UCLA (University of California, Los Angeles), the best or second-best public university in the US (according to the U.S. News & World Report Best Colleges and Best National Universities Rankings). UCLA has been ranked second American university for artificial intelligence (Shanghai Ranking 2025). UCLA has also been considered for many years as one of the leading universities in the world for global media management and the global entertainment business (including the movie industry, the television industry, the streaming industry, and the music industry), alongside USC (University of Southern California) and NYU (New York University).

“You can’t lead others until you learn to lead yourself.”

Justin Wright

– I completed online courses on EI or EQ (emotional intelligence), leadership and entrepreneurship from Harvard University, the most prestigious university in the world (according to the Times Higher Education), the best university in the world (according to U.S. News and the Shanghai Ranking), the world’s best university for social sciences and management and the world’s best university for business and management studies (according to QS). The two amazing professors who had the greatest influence on me, Max Peyrard at the University of Paris 1 Sorbonne for international management and Ricardo de Cala Castillo at the Complutense University for marketing, both had a special relationship with Harvard University. Max Peyrard was a Fulbright Visiting Scholar at Harvard University and Ricardo de Cala Castillo was a Research Fellow at the Real Colegio Complutense (RCC) at Harvard. The circle is now complete! 🙂


“The greatest leader is not necessarily the one who does the greatest things. He is the one that gets the people to do the greatest things.”

Ronald Reagan

Global Expertise:

strategy, international strategy, digital strategy, internationalization, negotiation and conflict resolution, entrepreneurship, vision and leadership,

marketing, international marketing, digital marketing (content marketing, SEO, UX, CX, social media, influencer marketing…) and communication,

recruitment, talent acquisition, talent management, training and development, cross-cultural management, team building and team management,

management, international management, digital transformation, change management, project management, problem solving and decision-making,

– in the cultural and creative industries (I have worked in the CCIs since 2004) and in particular in the entertainment, media and technology industry.

Scroll to Top