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SII Group

SII is an international group specialising in digital services and information and communication technologies (ICT). Founded in 1979, SII operates as a digital consulting and engineering company, providing long-term support to major groups in demanding sectors such as aeronautics, space and defence, banking and insurance, telecommunications, energy, and industry. With a presence in 21 countries and more than 16,000 employees, the group places human values and team commitment at the heart of its strategy.

About us
SII in the world
- SII in France
- Aix Méditerranée
- Atlantique
- Auvergne Rhône-Alpes
- Est
- Île-de-France
- Nouvelle-Aquitaine
- Nord
- Sophia-Antipolis
- Sud-Ouest
- Ouest
- SII in the world
- Belgium
- Canada
- Chile
- Colombia
- Czech Republic
- Germany
- India
- Italy
- Luxembourg
- Morocco
- Monaco
- SII in the world 2
- Netherlands
- Poland
- Portugal
- Romania
- Spain
- Sweden
- Switzerland
- USA
- Ukraine
- United Kingdom
Specialised entities
- Our entities
- SII Solutions
- Metanext

Industries

A key player in digital transformation, SII designs and integrates technological solutions, combining specific developments with proven technologies. From industry to finance, telecommunications, and services, the group supports its clients in the success of their most complex projects, both in France and internationally.

Aeronautic, Space and Defense
Banking and Insurance
Telecoms
Automotive and Transport
Energy
Health
Retail and Distribution

Expertise

SII leverages its engineering and IT expertise to support, accelerate, and facilitate its clients' transformations. Our tailor-made solutions combine technical mastery, industry knowledge, and a pragmatic approach.

Applications
Cybersecurity
Data and AI
Embedded Systems
Infrastructure and Cloud
Manufacturing Engineering
Mechanical and Electrical Engineering
System Engineering
Test and Automatisation
Test and Simulation

Innovation

SII is involved in research and innovation activities, either independently or through partnerships, in order to support our clients and society in responding to major challenges: connected, inclusive, and sustainable territories and services, as well as eco-friendly, autonomous, and accessible transportation.

Optimize product operations within its ecosystem
Reducing time-to-market while ensuring reliability
Supporting the energy transition
Improvement of production and operation

CSR approach

At SII, we firmly believe that digital technology is a driver of opportunities and sustainable solutions. It enables us to support society and our clients in their transition towards a more resilient future, while strengthening our social commitment through equity, diversity, and inclusion, which are essential pillars in addressing social, climate, and environmental challenges.

SII Corporate Foundation
Diversity, Equity and Inclusion Mission

Join us

Joining SII means engaging in a collective adventure: at SII, we dare, we innovate, and we commit ourselves to working together to build a sustainable, inclusive, and technological future.

Why join SII?
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Follow the latest news from the SII Group. Discover our projects, our expertise, our commitments, and the life of our agencies in France and internationally.

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The quality of work at SII
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