Groupe SII

What Groupe SII does

Groupe SII (SII Group) is a privately held French IT and engineering consulting firm founded in 1979 and headquartered in Paris. The company delivers professional services and specialized technical talent to large enterprises across seven primary verticals: Aerospace/Space/Defense, Banking/Insurance, Telecommunications, Automotive/Transport, Energy, Healthcare, and Commerce/Distribution. As of the source period, SII employs more than 16,000 collaborators across 21 countries and 100+ sites, anchored by ten French regional agencies (Paris, Aix-en-Provence, Nantes, Lyon, Strasbourg, Rennes, Bordeaux, Lille, Toulouse, Sophia Antipolis) and international subsidiaries in Germany, Belgium, Spain, Canada, the United States, Chile, Colombia, and India.

The service portfolio is organized around ten expertise areas: Applications, Data & AI, Cybersecurity, Infrastructure & Cloud, Manufacturing Engineering, Systems Engineering, Mechanical and Electrical Engineering, Embedded Systems, Test & Automation, and Test & Simulation. Delivery is structured around direct enterprise sales and a proprietary Flexshore model that blends onshore proximity with nearshore/offshore delivery centers in Romania, Poland, Colombia, India, and Morocco. Specialized subsidiaries include SII Solutions and the 2023-acquired cloud services firm Metanext; an internal R&D arm, SII Research, operates 8 laboratories and 15 demonstrators across four thematic programs (time-to-market, product operations, energy transition, production/exploitation).

Revenue is generated through Time & Materials, Fixed-Price, and Flexshore consulting engagements, plus managed services, sold under multi-year enterprise contracts. The customer base includes Airbus, Thales (30-year relationship, 1,000+ experts mobilized), Safran, BNP Paribas, Santander, Schneider Electric (20-year relationship, 150 dedicated experts), EDF, ENGIE, Orange, MBDA, Volkswagen, La Poste (10+ year relationship, 50+ projects), Roche, ABB, and SNCF. ESG credentials include EcoVadis Platinum (2026), CDP A List (2025), UN Global Compact signatory status, and ISO 9001/14001/27001 certifications across multiple subsidiaries.

Name

Groupe SII

Legal name

Groupe SII

Website

https://sii-group.com

Company type

Private

Founded year

1979

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Groupe SII is a privately held French IT and engineering consulting firm founded in 1979, employing 16,000+ professionals across 21 countries and serving large enterprises in aerospace/defense, banking, telecom, energy, automotive, and healthcare through multi-year consulting, project, and Flexshore delivery engagements.

Ownership category

akta.pro rank

Product category

IT Consulting and Engineering Services

NAICS

Management Consulting Services (54161), Computer Systems Design Services (541512), Computer Systems Design and Related Services (54151), Engineering Services (541330)

SIC

Services-Management Consulting Services (8742), Services-Engineering, Accounting, Research, Management (8700), Services-Computer Integrated Systems Design (7373)

akta.pro primary industry

Enterprise Architecture & IT Operating Model (BPAHAEAB)

akta.pro secondary industries

Electronic Warfare (EW) & Signals Intelligence (SIGINT) Systems (IMABAOAB), Manufacturing & Operations Excellence (Lean/Six Sigma) (BPAHAHAC), IT Governance, Risk & Compliance (IT GRC) Platforms (HDAEALAK)

Keywords

• IT consulting services
• Engineering services
• Digital transformation
• Systems integration
• Embedded systems

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices22 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Professional Services and Consulting: Revenue generated through consulting engagements, project-based work, and managed services providing specialized IT and engineering talent to enterprise clients.
2. Staffing and Talent Solutions: Providing specialized technical professionals for client projects through various engagement models including Time & Materials, Fixed-Price, and Flexshore arrangements.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels8 records

Core offering

Groupe SII is an international IT consulting and engineering services firm providing specialized technical talent, digital transformation expertise, and project-based consulting engagements to large enterprises. The company delivers across ten core expertise areas (Applications, Data & AI, Cybersecurity, Infrastructure & Cloud, Manufacturing Engineering, Systems Engineering, Mechanical & Electrical Engineering, Embedded Systems, Test & Automation, and Test & Simulation) via Time & Materials, Fixed-Price, and Flexshore engagement models across 21 countries.

Product overview

Groupe SII is an international IT consulting and engineering services group (ESN) founded in 1979, operating in 21 countries with over 16,000 employees. The company's product and service portfolio centers on a set of core IT and engineering expertise areas — Applications, Data & IA, Cybersécurité, Infrastructure et Cloud, Ingénierie de fabrication, Ingénierie des systèmes, Ingénierie mécanique et électrique, Systèmes embarqués, Test et Automatisation, and Test et Simulation — which are delivered to clients across seven industry sectors (Aerospace/Defense, Banking/Insurance, Telecom, Automotive/Transport, Energy, Healthcare, Retail). The portfolio is complemented by specialized entities SII Solutions and the acquired cloud services company Metanext (acquired January 2023), and an R&D arm called SII Research (with 8 labs and 4 thematic research areas). The overall architecture is a platform of expertise areas supplemented by specialized subsidiaries and an innovation layer, rather than a single unified software product.

Differentiator

Problem solved

Functional benefit

Products and services

• Applications Custom software application design, development, and integration services covering the full application lifecycle from conception to deployment and maintenance for enterprise clients.
• Data & AI Data engineering, analytics, and artificial intelligence services that help clients leverage data assets and implement AI-driven solutions for process optimization and decision support.
• Cybersecurity Cybersecurity consulting and engineering services including threat analysis, security architecture design, and protection of digital assets and infrastructure for enterprise clients.
• Infrastructure et Cloud IT infrastructure design, cloud migration, and managed services including cloudification of networks and systems for telecom operators and enterprise clients.
• Ingénierie de fabrication Manufacturing engineering services supporting industrial clients across the product lifecycle, from process design to production optimization and quality assurance.
• Ingénierie des systèmes Systems engineering services covering requirements management, system architecture, integration, verification, and validation across complex industrial programs.
• Ingénierie mécanique et électrique Mechanical and electrical engineering design services for industrial equipment, aerospace systems, and manufacturing tooling.
• Systèmes embarqués Embedded systems development and engineering for aerospace, automotive, and industrial applications, including real-time operating systems and safety-critical software.
• Test et Automatisation Software testing, test automation, and QA services including functional testing, performance testing, and automated test framework development.
• Test et Simulation Simulation engineering and testing services for aerospace, defense, and industrial clients, supporting certification and validation of complex systems.
• SII Research SII's dedicated research and innovation arm comprising 250 collaborators, 40 researchers, 8 laboratories, and 15 demonstrators. Conducts co-innovation with clients across four thematic areas: reducing time-to-market, optimizing product operations, energy transition, and improving production and exploitation.
• Metanext A cloud services company acquired by SII Group in January 2023. Metanext strengthens SII's cloud expertise and expands support for blue-chip clients in banking, insurance, and manufacturing sectors.
• SII Solutions A specialized entity within the SII Group focused on specific client segments and delivery models, operating as part of SII's specialized subsidiaries.

Quantifiable outcome

• 30-year partnership with Thales Group
• +4 more outcomes

Named customers15 records

Segments7 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability14 records

Feature3 records

Partnerships

One partnership is on record.

• MetanextcoreStrategic or Co-development Partner · 1 January 2023SII Group acquired 100% of Metanext, a cloud services company, in January 2023. The acquisition aims to strengthen SII's cloud expertise and expand its support for blue-chip clients, particularly in banking, insurance, and manufacturing sectors.

Scale indicators10 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Capgemini: Paris-headquartered global IT services and engineering firm with comparable vertical coverage (aerospace, defense, banking, energy) and similar Flexshore-style global delivery. SII competes with Capgemini on mid-sized French and European enterprise transformation mandates, though Capgemini operates at materially larger scale.
• Devoteam: French-headquartered IT consulting firm specializing in cloud, cybersecurity, data/AI, and digital transformation. Directly competes with SII on cloud (overlapping Metanext) and cyber services for large French and European enterprise clients.
• Sopra Steria: French-listed IT services group with strong positions across European banking, public sector, aerospace, and defense — directly overlapping SII's primary verticals. Both firms compete for French and European enterprise transformation and managed services contracts at similar scale.
• Aubay: French IT consulting and engineering services firm with comparable profile in IT services for banking, insurance, industry, and telecom. Competes with SII on similar mid-sized European consulting mandates with an offshore-mixed delivery model.
• Wavestone: French-headquartered pure-play management and technology consulting firm with deep expertise in banking, insurance, and energy. Comparable to SII's higher-end consulting and digital transformation work for large French and European enterprises.
• Alten: French engineering and technology consulting group serving automotive, aerospace, energy, and life sciences with embedded and systems engineering. Highly comparable to SII in its dual IT/engineering positioning and European industrial-client base.

Broad incumbents

• Atos: French-headquartered global IT services incumbent with broad portfolios across digital, cloud, security, and managed infrastructure. Operates at much larger scale than SII but competes head-to-head on European enterprise transformation mandates, especially in banking and public sector.
• Accenture: Global IT services and consulting leader with deep presence across all of SII's primary verticals. While Accenture's scale and digital capabilities dwarf SII's, they compete for the same enterprise transformation budgets, especially with French multinationals.
• CGI Group: Canada-based global IT and engineering services firm with strong European footprint (especially France, Germany, Nordics) and significant aerospace/defense and banking verticals. Overlaps with SII in Canada, Germany, and France enterprise IT services.

Regional players

• Tietoevry: Nordic-headquartered IT services and engineering firm with banking, public sector, and industrial clients across Northern Europe. Comparable to SII in its IT services portfolio but primarily serves a different geography (Nordics/Baltics) rather than France/Benelux.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCxfEv9lcsHkZjDniHSLqwXA
• LinkedInlinkedin.com/company/sii
• Instagraminstagram.com/Groupe_SII
• Xx.com/GroupeSII
• Facebookfacebook.com/665939310096446

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles23 records

Subsidiaries2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A1 record

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Groupe SII