Reinventing influence.
Global strategic influence agency
supporting leaders, businesses and governments
Manifesto
In an increasingly fragmented world, we aim to create new relationships between different actors. Faced with economic challenges, multifaceted risks, national and international tensions, opposition and debates, we believe it is essential to maintain a voice.
This means knowing how to listen and engage in dialogue with an ever-growing and diverse range of stakeholders. Communication provides the information and understanding needed to navigate complex environments where information attacks and interference are the norm.
We help governments, organisations and businesses to speak with integrity and impact on behalf of their audiences.
Through our ideas, talents, expertise and solutions, we bring together all the professions involved in influence and communication.
Our expertise
Discover our core areas of intervention and our full range of expertise designed to meet your strategic communication, influence, and positioning needs.
Protecting your reputation and supporting your growth requires the combined experience and skills of our teams. From social media and public affairs to strategic intelligence, monitoring, AI and others, explore our service offerings and contact us to find out how we can help.
Who are we?

Based in Paris with offices in Brussels, London, Bonn, Montreal, Toronto, Dubai, Rabat and Mexico City, and with an international network of senior advisors, NSI combines local expertise with a global vision to offer a worldwide service.
The combined division generates revenue of around €32 million, with strong growth in 2025, and stands out for its ability to offer tailor-made solutions in increasingly changing and unstable environments.
It is positioned as one of the leaders in the European market with a global reach, thanks to its local offices and a network of several thousand correspondents around the world.
Some figures
Our
international presence
Our Events
Power & Energy morning coffee with Julien Aubert (LR)
Club31 with Gabriel Attal
NSI networking event – Rencontres Économiques d’Aix
Club31 with François Hollande
Club31 “Présidentielle 2027” with Bruno Retailleau
Club31 with Sarah Knafo
Club31 with Cédric O
Club31 evening with Xavier Bertrand
Club31 evening with Pierre Moscovici
Soirée Club31 avec Bernard Cazeneuve
Club31 evening with Marc Ferracci
Your questions on NSI
What is NSI?
NSI is the global strategic influence agency of the ADIT group. NSI supports leaders, companies and governments across the full spectrum of influence and communications: strategic communication and public opinion, public affairs and influence, strategic intelligence and crisis management, and international relations. Formed by bringing together ESL, Antidox, ATLAS Public Affairs and Madame Bovary, NSI combines local presence with a global vision.
What services does NSI offer?
NSI organises its services around four pillars: strategic communication and public opinion (media relations, AI, social intelligence, financial communication, thought leadership), public affairs and influence (lobbying, European, territorial and governmental affairs, nation branding), strategic intelligence and crisis management (monitoring, cybersecurity, 24/7 crisis management), and international relations (business diplomacy).
Where is NSI located?
NSI is headquartered in Paris, with offices in Brussels, London, Bonn, Montreal, Toronto, Dubai, Rabat and Mexico City, supported by an international network of senior advisors and several thousand local correspondents. This presence across 8 countries allows NSI to support clients worldwide, combining local roots with a global perspective.
Who does NSI work with?
NSI works with leaders, companies (large groups and mid-caps), institutions and governments facing reputation, influence, growth or crisis challenges. With around 500 active clients, 130 employees and 25 years of experience, NSI designs tailor-made responses for fast-changing economic, political and media environments.
Why choose NSI as a strategic influence agency?
Clients choose NSI for its unique ability to unite the entire influence chain under one roof: communication, public affairs, strategic intelligence, crisis management and business diplomacy. Backed by the ADIT group and drawing on recognised figures from public, diplomatic, parliamentary, economic and media circles, NSI protects your reputation and supports your growth with integrity and impact.