A different approach to data protection

As a French and sovereign software vendor, IDECSI helps mid-market and enterprise organizations secure their Microsoft 365 data through an innovative, user-centric approach, without lengthy or complex projects.

12+ years of experience

928/1000 CyberVadis score

1.2M+ users in 80 countries

IDECSI, spécialise de la protection des données M365

Trusted by Mid-market and enterprise organizations from 500 to 200,000 users.

Why choose IDECSI ?

A french success story

Our story

2014

After an extensive research and development phase, IDECSI launched its first solution designed to protect the mailboxes of executives and managers in large enterprises. 🏆 That same year, IDECSI received the prestigious Innovation Award at Les Assises de la Sécurité.

2017

From protecting executive mailboxes to securing cloud environments, IDECSI has continuously evolved its SaaS platform to help organizations address their security challenges with solutions that remain simple to deploy and easy to use.

2021

IDECSI is a pioneer in cybersecurity, combining advanced technology with a disruptive approach to data protection. With deep expertise in Microsoft 365, messaging systems, collaboration platforms, and on-premises environments, IDECSI enables organizations worldwide to benefit from true innovation through MyDataSecurity.

2024

IDECSI continues to help organizations manage their data by addressing a new strategic challenge: digital sustainability and storage optimization. Through MyDataManagement, organizations can reduce their digital footprint by eliminating redundant and unnecessary data while optimizing storage consumption across Microsoft 365.

2026

IDECSI is making significant investments in AI, leveraging it as a company-wide performance accelerator. Integrated into our internal processes, AI strengthens our innovation capabilities, optimizes operations, and allows us to support customers with real-world expertise in Microsoft technologies and AI adoption. In 2026, IDECSI was honored with the Systematic Champions label, an award recognizing French Deep Tech companies with outstanding potential for innovation, growth, and impact.

Our approach

Innovation built around the user

Unlike traditional approaches, IDECSI is committed to delivering innovation without lengthy and complex implementation projects. With IDECSI, organizations benefit from:

Greater visibility for both IT teams and business users
Data owners actively involved in risk remediation
One-click remediation actions for business teams
Measurable risk reduction within as little as 7 days
No additional burden on IT teams

A new response to modern data security challenges

Technology at the core of our strategy

IDECSI is built on strong technological expertise. Our France-based R&D center develops advanced technologies that enable us to deliver innovative solutions closely aligned with our customers’ needs for data governance and protection.

Our Customers

Trusted by leading CAC 40 and Fortune 500 organizations

Headquartered in Paris, IDECSI helps protect many of France’s largest organizations and numerous Fortune 500 companies, including SNCF, FORVIA, and Groupe ADP. Today, more than one hundred organizations trust IDECSI across France, Belgium, the United Kingdom, Luxembourg, and the United States.

Deep expertise across the Microsoft 365 ecosystem

Microsoft Managed Partner

As a Microsoft Managed Partner, we design our solutions in close alignment with the evolution of Microsoft 365. This close collaboration enables us to help organizations gain control over their data, secure access to critical information, and accelerate the adoption of innovations such as Microsoft Copilot and AI agents. The result is a solution aligned with your environment, built on proven best practices and designed to support long-term Microsoft 365 governance.

Awards & Recognition

🏆 Systematic Champions Award – 2026

✅ CyberVadis Score: 928/1000 – 2025

🥇 Cybernight Gold Medal – 2022

🏆 Les Assises Innovation Award – 2014

IDECSI in few numbers

Why choose IDECSI

12+ Years

of expertise in Microsoft 365 data protection

Experts manage the solution for the clients

150+ Customers

CAC 40 companies, mid-market organizations, and public-sector entities

+1.2M

Users across 80 countries

100% French

R&D based in France

A French and independent company

Our DNA

Ecosystem :

Member of CESIN, CLUSIF, Bpifrance Excellence, and Microsoft Partner.

Sovereignty

French software vendor and OVHcloud partner (SecNumCloud).

Compliance

GDPR-compliant. No access to file content, only metadata.

Who we are ?

Employee Testimonials

IDECSI is driven by a shared ambition: a relentless pursuit of excellence, a passion for innovation, and a strong team spirit.

Daniel Rezlan, President

Digital security is one of the defining challenges of our time. Together, let’s protect our economy. Together, let’s protect our businesses.

Daniel Benabou, Chief Executive Officer

“I was looking for a company with a human-sized culture and strong values. Here, the atmosphere is incredibly welcoming, which makes it easier to work in great conditions and truly thrive professionally.”

Christopher Schmitt, Infrastructure Support Engineer

“With its modern technologies, IDECSI has successfully developed an innovative solution while keeping people at the heart of its mission.”

Thierry Champenois, Full-Stack Software Engineer

“I joined IDECSI above all because I believed in the solution. I quickly recognized the value this type of technology can bring to both users and organizations.”

Quentin Levêque, Customer Success Project Manager

Want to join us?

At IDECSI, we place a strong emphasis on kindness, collaboration, and mutual respect. Every team member is guided by shared values of teamwork, creativity, and accountability. Ready to Join Us?

Job opportunities

Resources & News

Explore our latest insights, resources, and news on Microsoft 365 data governance and protection.

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