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.
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.
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.
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.