Groupe SII
IT consulting digital services
- B2B
- Has physical offices
- Consulting
- Professional services
- Sales-led purchase
About Groupe SII
Engineering and digital services company providing innovative solutions to large groups across various sectors, developing new technologies and evolving information systems.
Key facts
- Industry
- IT Services and IT Consulting
- Company size
- 5,001–10,000 employees
- Headquarters
- Paris, Île-de-France, France
- Founded
- 1979
- Revenue
- €1.2BFY2026, publicly reported
- SIREN
- 315000943
- Website
- sii-group.com
- linkedin.com/company/sii
Jobs at Groupe SII
- Développeur Javascript (F/H)
- Senior Data Architect (m/w/x) Anlagenbau
- Junior Treasury Specialist (f/m/x)
- Cybersecurity Researcher (f/m/x)
- Développeur Java/Angular F/H
- Ingénieur en Ingénierie Système Aéronautique (H/F)
- Ingénieur Qualité Électrique (H/F) – Secteur Aéronautique
- Inżynier jakości (f/m/x)
Groupe SII in the news
- Fiers dêtre partenaires du Stade Toulousain depuis 2013 !
Groupe SII celebrates its long-standing partnership with Stade Toulousain, emphasizing shared values like collective performance, knowledge transfer, commitment, and agility.
- Découvrez Thierno Diallo, Développeur chez SII
Thierno Diallo, a developer at SII, uses emerging technologies to build innovative projects and mentors new hires, having advanced from an intern to a trusted team member.
- Défense et aéronautique : le français SII achète deux ETI espagnoles spécialisées pour se renforcer
SII, a digital services specialist, acquired two Spanish engineering firms, Airtificial and Aertec Solutions, to boost its presence in the aeronautics and defense industries.
- Centum T&S repris par MBDA et SII
MBDA and SII acquired Centum T&S, a subcontractor in receivership, with MBDA taking over the main French sites and SII acquiring the Toulouse site and Belgian subsidiary.
- L’activité de Centum T&S est reprise par SII et MBDA
Centum T&S, in judicial reorganization, has its activities split between missile manufacturer MBDA and IT services company SII.
Groupe SII at a glance
Groupe SII is a B2B company in the IT Services and IT Consulting industry, headquartered in Paris, Île-de-France, France.
Groupe SII was founded in 1979.
Groupe SII has 5,001–10,000 employees.
Groupe SII's revenue is €1.2B (FY2026, publicly reported).
Groupe SII's SIREN number is 315000943.
Groupe SII is hiring: 8 recent open roles, including Développeur Javascript (F/H), Senior Data Architect (m/w/x) Anlagenbau, Junior Treasury Specialist (f/m/x).
Selling to companies like Groupe SII?
Tamtam finds the companies that match your ideal customer, researches each account and tells you who to contact and when.
Find similar companies