strategy,
communication,
crisis.

Manifesto

In an era of permanent crises (climate, health, economic, security, etc.), it is increasingly difficult for leaders and public figures to see clearly and on the long term, to be heard and understood.

While agility, responsiveness and speed are keys to adapting in the short term, it is only by thinking in the long term that we survive crises. This is achieved by building sustainable strategies, based on a thorough analysis of the history, values and objectives of the entities and leaders we advise.

Our conviction is simple: it is by restoring meaning to the action taken, with humility, authenticity and audacity, that we succeed in overcoming the vicissitudes of daily life and in developing over the long term.

This is the ambitious mission we have set ourselves: to put our expertise in strategy, communication and crisis management at the service of our clients so that they can move forward in the chaos and emerge stronger from crises.

Expertise

Strategy

We help leaders develop a strategy and implement it. Influence, common sense and reputation are essential ingredients for the success of companies or organizations.

To convince, to be successful, to develop, the consideration of the interests of citizens, consumers, employees and shareholders, and of course the public authorities is essential in times of crisis.

Our mission is to study in depth the political, economic, social and cultural environment of our clients, its constraints as well as its opportunities, to help them build a positioning and a strategy corresponding to their ambition, their history and their values, and to support them in the daily implementation of the action plan developed together.

Communication

We help leaders and personalities make their communication a force for success. To this end, we analyze public opinion by carrying out studies. We help define the most effective messages for their priority targets. We reflect with them on how to improve their image.

We are also able to assist our clients on a daily basis in managing their relations with the press, improving their digital reputation and understanding the expectations of public authorities. The digital image of our customers is today one of the first interfaces with their future customers, it must be excellent.

Digital Influence

The digital image of our clients is now one of the first interfaces with their future customers, and it must be excellent.

That's why we work with our clients on a daily basis to improve their digital reputation.

Thanks to an integrated studio we are also able to offer innovative editorial, video, photo, and audio formats to feed our clients' social networks, increase their digital presence and improve the engagement of their subscribers.

Media training

Speaking in the media is almost comparable to a combat sport. It requires real preparation. 

To be able to transmit precisely the messages you desire, and to be a reliable and an appreciated contact for the media.

We are experts in media coverage and able to offer personalized support prior to any media appearance, and adapted to every format.

Likewise, before each media intervention, we carry out a briefing on the journalist and the media, as well as a dedicated preparation.

Crisis

Thanks to more than ten years of experience in crisis management and communication, we help our clients make the right decisions and explain them when their reputation is at stake or when complex and sensitive operations are carried out (mergers and acquisitions, restructuring, etc.).

We are present on a daily basis alongside management and are available at any time to reflect on the appropriate strategy.

Finally, before crises occur, we offer our clients strategies, to anticipate and prepare in case they occur. Downstream, we can conduct seminars to optimize feedback and get the best out of them.

Method

We give priority to supporting our clients over the long term in order to build a strategy with them, implement it and anticipate and manage possible crises.

We can also support our clients on shorter missions, particularly in the event of crises, complex operations (IBOs, mergers and acquisitions, restructuring, etc.) or short-term regulatory issues.

In both cases, we organize a weekly briefing and make ourselves available 24/7 according to the client's needs.

Team

Gaspard Gantzer, founder

Gaspard Gantzer, founder

Gaspard is a graduate of Sciences Po Paris and ENA.

He was notably spokesman for the Mayor of Paris, Bertrand Delanoë, advisor to the Minister of Foreign Affairs, Laurent Fabius, and the President of the Republic, François Hollande.

As an expert in crisis management and communication, he has notably managed the 2015 Paris attaks, the Eurozone crisis, negotiations on Iran's nuclear program, military interventions in the Sahel, the Central African Republic, Syria and Iraq, and peace talks in Ukraine. Finally, he was part of the team in charge of negotiating the Paris Climate Agreements.

Since 2017, he has been advising business leaders, first within the 2017 agency, which he co-founded, now within the Gantzer agency.

Finally, Gaspard teaches at HEC Paris and Sciences Po Paris.

Myriam Balde, consultant

Myriam Balde, consultant

Myriam holds a master's degree in Public Communication from the University of Lille and a master's degree in Public Affairs from the University of Paris-Saclay. After experiences in consulting firms and in the Public Affairs Department of Sanofi, she joined the Gantzer Agency in 2023.

Gwenaëlle Billoux,  sénior consultant

Gwenaëlle Billoux, sénior consultant

Graduated in history and communication at the IFP, Gwénaëlle has worked for executives and political figures as a freelancer and then in an agency. She has a great agility that allows her to quickly analyze the digital issues and to propose adapted strategies.

Arthur Blanc-Aubert, senior consultant

Arthur Blanc-Aubert, senior consultant

Graduated in law and public communication, Arthur worked for various law firms and the legal think-tank le Club des juristes.

Edgar Borrits, consultant

Edgar Borrits, consultant

Edgar is graduated of Sciences Po Bordeaux's master's degree in public and political communication. Thanks to his communication experience at the "Département de la Gironde" and the "Région Nouvelle-Aquitaine", he has in-depth knowledge of the political and institutional inner workings. Edgar has joined the Gantzer Agency in january 2023.

Lena Collinet, consultant

Lena Collinet, consultant

Léna obtained a degree in political science in Lille (2020) before taking a gap year in a think tank and working for a political party (2021). She then obtained a Master's degree in Political Communication, during which she worked at Hill & Knowlton strategies (WPP) as a junior in corporate and institutional communication (2022-2023). Léna is now an influence consultant for Agence Gantzer.

Emma Dubosc, consultant

Emma Dubosc, consultant

Emma graduated from the University of Lille with a degree in Political Science and then joined ISCOM for a master's degree in political and influential communication. Passionate about video, she learnt editing in high school before completing her audiovisual training at ISCOM, complemented by skills in visual and graphic design. Emma masters software such as Final Cut Pro X, InDesign and Photoshop. She is in charge of the digital communication of the agency, taking care of our digital showcase; she masters perfectly the codes of social networks, from facebook to TikTok and Twitch.

Thaïs Dubs, sénior consultant

Thaïs Dubs, sénior consultant

Thaïs has a degree in journalism and political and institutional communication. She has worked for many editorial offices (Le Point, Vogue Paris) and communication departments in London, Milan and Paris (We Work, Dailymotion).

Eve Jouandin, consultant

Eve Jouandin, consultant

After graduating with a degree in private law from the University of Tours, Eve joined EFAP Paris to train in communication and media relations. After working for a communication and influence agency for business leaders and political figures, Eve was able to enrich her skills by joining the communication and press service of a department of the Ministry of the Economy.

Élise Lalanne Larrieu, senior consultant

Élise Lalanne Larrieu, senior consultant

Elise trained in influential communications and press relations at the Sorbonne and then at the Catholic University of Lille after a literary preparatory class. She began her career in a press agency, then in a start-up, before joining the Gantzer Agency for the first time in 2022.  Elise then resumed her studies at ESCP, in a master's program specializing in strategy, consulting and organization. Elise has been back at the agency as a senior consultant in strategic communications and press relations since May 2024.

Translated with DeepL.com (free version)

Jules Lyochon, consultant

Jules Lyochon, consultant

Jules graduated from SciencesPo Lille's Public and Corporate Communication master's programme and spent time in Japan and Greece during his studies. Passionate about culture and music, he has worked for museums in Paris. This is how he creatively tackles the problems inherent to contemporary communication issues.

Clara Reulet, senior consultant

Clara Reulet, senior consultant

Graduated in public affairs from Sciences Po Paris, Clara spent part of her curriculum at the University of Toronto. She has worked for the « Centre national du cinéma et de l'image animée » and for the think-tank Terra Nova.

Tristan Seznec, consultant

Tristan Seznec, consultant

Graduated of Sciences Po Lille with a master's degree in Public and Corporate Communication, Tristan worked in communications before moving to Brussels to learn about European lobbying. In 2023, he joined the Gantzer Agency.

Noé Soula, consultant

Noé Soula, consultant

Noé holds a degree in political science from the University of Paris 1 Panthéon Sorbonne and a Master's degree in political and public communication from the University of Paris 12. He has worked at the National Assembly and at the press service of the Ministry of Justice.

These experiences have given him expertise in crisis communication in sensitive situations as well as an in-depth knowledge of the political and institutional field and its relations with the media.

Marie Spiteri, consultant

Marie Spiteri, consultant

With a rich bilingual and multidisciplinary background, Marie graduated from the French-Spanish programme at Sciences Po Bordeaux, specializing in public and political communication in Bordeaux, and in political science and public administration in Madrid. She worked for French and Spanish public and political organisations before joining Gantzer Agency in January 2023.

Jade Tourron, consultant

Jade Tourron, consultant

Jade graduated from the Université Panthéon-Assas with a master's degree in law. After some time in the think tank Le Club des juristes (law specialized), she worked at Vae Solis Communications, before joining Gantzer Agency in 2023.

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