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 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.
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
Graduated in law and public communication, Arthur worked for various law firms and the legal think-tank le Club des juristes.
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).
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.
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.
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
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.
Anouk Holka, consultant
Currently studying in the Grande École program at ISCOM Paris, Anouk initially specialized in marketing and gained significant experience in the hotel industry. Now specializing in press relations and influence, she is expanding her skills and mastering the challenges of public and political communication. After an internship at the Gantzer Agency in 2023, she joined the agency in 2024, where she is working on press relations and public affairs assignments on a work-study basis.
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.
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.
Aurore Pageaud, consultant
Aurore holds a master’s degree in Public Affairs from Sciences Po Paris, as well as a degree in philosophy from the Sorbonne. During her studies, driven by a desire to complement her theoretical knowledge with a variety of professional experiences in both the public and private sectors, she worked at the Ministry of Justice, the Senate, a strategic lobbying consultancy, and completed a work-study program at Danone's global headquarters. She joined the Gantzer Agency as a Public Affairs Consultant in September 2024.
Lucas Picarat, consultant
We are delighted to welcome Lucas Picarat to the agency's creative team. Lucas has a Master's degree in Art Direction and Graphic Design from the École de Condé and is currently in his 5th year of Creative Direction & Motion Design at ISCOM.
He's a big fan of sport in general, but admits to specialising in football, which he can talk about for hours. He can also design your future furniture, which he scribbles on the corner of a notebook when zoom meetings drag on.
He joins the agency's team of ‘real’ Parisians, who unfortunately remain in the minority as there are now only 3 of them. Welcome Lucas, we love you anyway.
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 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
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 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.