Bernard Huvé, an engineer by training, set out to create SII (Société pour l’Informatique Industrielle). Specializing in industrial IT, Bernard quickly recruited his first employees to fulfill fixed-price contracts for major groups such as Philips, the French Atomic Energy Commission, and Bull.

This decade was marked by the creation of our first SII agency in Nice (1984) following a major contract with IBM's laboratory; followed by the rollout of our model in the Paris region with Cergy Pontoise (1987) for our client Sagem, and finally the Vélizy site (1989) for Matra, Renault, and Sextant.
The company's workforce then exceeded 100 people.

The 1990s were marked by a proactive approach to quality, focusing on formalizing our procedures, methods, and best practices. In 1992, we obtained ISO 9001 certification for all our activities.
At the same time, we continued our development strategy throughout France with the creation of multiple agencies (Rennes, Aix-en-Provence, Nantes, Toulouse, Strasbourg, and then Lille).
Finally, in 1999, we went public to increase our visibility. Bernard Huvé, founder and CEO, is the majority shareholder along with his family.

The Group continued to expand its French network and embarked on international development with the opening of a subsidiary in Poland (2006), followed by the Czech Republic, Belgium, and Morocco, as well as the acquisition of the Coris Group in Switzerland and Concatel in Spain.

To support the Group's growth, which now exceeded 1,500 employees, a new management team was formed in 2007. Bernard Huvé took over as Chairman of the Supervisory Board and appointed Eric Matteucci as Chairman of the Management Board.

The strategy of expanding beyond France is being confirmed and accelerated with acquisitions in Germany, Belgium, and Colombia, and the creation of new locations in the Netherlands, India, Canada, and England.

The Group is also pursuing external growth in France to support its development, notably with the acquisition of Feel Europe in 2016, aimed at strengthening our position in the banking sector.

In 2019, we celebrated our 40th anniversary and announced the strengthening of the Group's top management and the creation of a Development Department to accelerate the company's growth.

Capitalizing on the solid foundation we have built over more than 40 years (through our international presence in 18 countries and annual revenue of over €676 million), and driven by a context of profound business transformation, the Group is pursuing an ambitious development strategy for the coming years. To achieve this, we are basing our strategy on four pillars:

- Continuing to support our clients technologically and geographically.
- Investing in methodology and innovation to build expertise.
- Amplifying actions and initiatives that lead to the professional fulfillment of our employees.
- Ensuring SII's long-term place in society through a responsible social policy.

A new purpose has been established: “Working together to develop a digital and sustainable world.” This is a sign that SII wishes to continue growing to satisfy its customers while building on its DNA and historical values to ensure the fulfillment of its employees.
At SII, as a player in digital transformation, we are proud to participate in building a digital and sustainable world by integrating social and environmental concerns into all our projects.

This is also the year our Foundation was created: in line with our Corporate Social Responsibility approach, we launched the SII Foundation, which embodies the group's desire to commit to the public interest by supporting associations and mutual aid organizations. It promotes philanthropic engagement by supporting solidarity projects, with an emphasis on digital technology as a factor for inclusion and solidarity.

By reaching the symbolic milestone of €1 billion in revenue and 5,000 employees in France, the Group is confirming its growth momentum and strengthening its technological expertise in the strategic areas of data, AI, and cybersecurity.

The acquisition of Metanext, a cloud specialist, is a key step in expanding our support capabilities and consolidates our position in next-generation cloud architectures and services.

At the same time, the Group is continuing its international expansion with new locations in Luxembourg, Italy, and the United States, affirming its European leadership and global ambition.
SII also places environmental and societal issues at the heart of its strategy, with a commitment to contributing to a more responsible digital world and supporting its clients in their sustainable transformations.

In February 2024, the SII Group took a major step forward by delisting from the Paris Stock Exchange, marking a strategic turning point to strengthen its independence and accelerate its growth.
As part of this dynamic, SII also unveiled its new employer brand, Let's Tech Together, which truly reflects its DNA and commitments.

• Let's: Dare and commit.
• Tech: Developing innovative and impactful solutions.
• Together: Valuing teamwork and inclusivity.

This dynamic approach has been rewarded: SII ranked second in the Best Workplaces 2025 list and became the leading digital services company in its category, in recognition of its corporate culture and commitment to the well-being of its employees.
True to its ambition, SII continues to attract the best talent and build a sustainable technological future based on innovation and collaboration.

The SII Group, an expert in engineering and technology consulting, announces the launch of SII Solutions, its subsidiary specializing in the integration of Cloud, Data, and AI solutions. This new entity supports companies in the rapid and secure modernization of their information systems, thanks to a comprehensive approach: strategy, architecture, deployment, and continuous optimization.

SII Solutions is based on four pillars: cloud platforms, application modernization, data platforms, and AI agents, to guarantee performance, agility, and business impact. With this creation, SII confirms its commitment to accelerating the digital transformation of companies and responding to current technological challenges.

In 2026, the SII Group continued its growth trajectory through several strategic acquisitions and business integrations, strengthening its expertise in the aerospace, defence and industrial sectors. The integration of the manufacturing engineering activities of Airtificial and Aertec Solutions brought nearly 560 employees into the Group across Europe, further enhancing SII’s capabilities throughout the entire engineering value chain. At the same time, the acquisition of part of Centum T&S’s operations strengthened SII’s offering in electronic engineering and test systems. These transactions reflect SII’s ambition to support its strategic clients with increasingly specialised expertise and a stronger international presence.