Turningcybersecurityinto a lasting competitive advantage

We integrate security from design to deployment to protect your operations without slowing down your growth.

No items found.

With deep cyber expertise and an agile, product-focused mindset, we elevate your cyber maturity to turn it into a growth accelerator.

At Theodo, we help clients turn cybersecurity into a strategic driver for growth. As cyberattacks become more frequent and regulations such as NIS2 and DORA become stricter, we embed security throughout the entire product lifecycle.


This integrated approach enhances cyber maturity by increasing resilience to incidents, building greater trust with clients and partners, lowering costs through early vulnerability detection, and maintaining rapid delivery to accelerate time-to-market.

Our teams combine advanced cybersecurity expertise with an agile, product-focused mindset shaped by the Lean Tech® framework.

We are proficient in leading security standards and methodologies—including Zero Trust, MITRE ATT&CK, and industrialized DevSecOps—and offer comprehensive coverage across governance and compliance (ISO 27001, HDS), penetration testing, cloud and on-premises security, outsourced SOC, crisis management, and DevSecOps automation.

Our recent projects include certified HDS cloud migrations, strengthening security for critical systems, deploying outsourced SOC for mid-size enterprises subject to DORA, large-scale DevSecOps implementation, and fully automating risk management processes.

Discover the Lean Tech® approach

Our clients

“Theodo gave us an essential external perspective on our past security decisions. Their collaborative approach, with daily discussions, made a real difference. The close connection with their team changed everything ...”

Arnaud Caudoux

Client testimonials

No items found.
Explore our client stories

Our services

Cloud Security

Cloud Security

Secure your cloud environment without slowing down delivery

Discover

Governance, Risk & Compliance

Governance, Risk & Compliance

Strengthen your governance and the control of your cyber risks to transform compliance into a business advantage.

Discover

Offensive security

Offensive security

Go from presumed to be safe to proven safe.

Discover

Security operations

Security operations

Ensure 24/7 monitoring of your systems thanks to an outsourced SOC deployed in 4 weeks.

Discover

Our leaders

François Baligant
Group CTO & Partner Cybersecurity
Anne-Flore François
Engineering manager
Paul Molin
Lead SecOps & Group CISO

Our partners

To accelerate and secure the modernization of legacy systems, we work with cloud and technology leaders such as Google Cloud, AWS and Anthropic. Their platforms provide a robust, scalable foundation on which we build tailored solutions, adapted to our clients’ business challenges, security requirements and scale.

Découvrez notre écosystème de partenaires

No items found.
No items found.

Our certifications

At Theodo, our certifications showcase our ability to secure critical environments to the highest international standards, blending technical excellence with digital sovereignty.

  • France Cybersecurity Label, recognising the quality, robustness and French origin of our solutions.‍
  • AWS – Certified Security – SpecialtyandGCP – Professional Cloud Security Engineer, confirming our expertise in meeting the most advanced global standards for cloud and hybrid environment security.

No items found.

Discover other capabilities

AI Modernisation

Break free from legacy systems and unlock innovation with AI.

Learn more

Cloud

Laying the foundations for your future growth in the cloud

Learn more

Experience Design

Anchoring the future of digital products in useful, sustainable and desirable experiences.

Learn more

Data

Turning data into a strategic driver of transformation

Learn more

AI (Artificial Intelligence)

Preparing organisations for a future shaped by AI

Learn more

Platforms

Shaping platforms that drive lasting transformation across organizations

Learn more

Technical assistance

Empower your IT teams to deliver faster, better and without compromise

Learn more

Technology Operations

Ensuring performance and scalability for your information systems.

Learn more