CS GROUP

What CS GROUP does

CS GROUP is a French designer-integrator-operator of information and communication systems founded in 1996 and headquartered in Le Plessis-Robinson, France. The company delivers architecture, integration, and data valorization services for clients facing critical operational challenges, and operates as a wholly-owned subsidiary of Sopra Steria, the Paris-listed (CAC40) European IT services group. Its headcount of 1,001–5,000 employees supports a 'European ETI' (intermediate-sized enterprise) positioning that it describes as agile and innovative relative to larger primes.

The company's product portfolio is organized into seven core solution areas: Surveillance & Command Systems; Vocal & Tactical Communications; Cybersecurity; Safe Industrial & Embedded Systems; Data Intelligence (AI-powered); Digitalization of Industrial Processes; and Simulation & Training. It also offers dedicated Counter-Drone and Maintenance 4.0 solutions. These offerings are delivered across six vertical markets — Defense & Public Security, Space, Aeronautics, Transport, Energy, and Industry 4.0 — with defense and space treated as primary segments. Geographically, CS GROUP operates from France, Germany, Romania, and North America. Recent strategic actions include the April 2026 acquisition of space specialists Starion and Nexova to consolidate its European space business, and a sovereign industrial consortium with Thales and CNN MCO (Equans France) to modernize three French Navy amphibious helicopter carriers through 2027.

CS GROUP's revenue model is professional services and systems-integration-based, with quote-based B2B/B2G contracts and no publicly disclosed pricing. Distribution is primarily direct enterprise sales to government and defense institutions, complemented by prime-contractor consortium partnerships with major European defense players. The company markets itself through industry events (ILA Berlin, Eurosatory, AIAA/CEAS Aeroacoustics), a corporate newsroom, and recruitment platforms (SmartRecruiters, Welcome to the Jungle), with no disclosed public marketing or consumer channels.

Name

CS GROUP

Legal name

CS GROUP

Website

https://csgroup.eu

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

CS GROUP is a French designer-integrator-operator of critical information and communication systems serving defense, space, aeronautics, transport, energy, and industrial clients, operating as a subsidiary of Sopra Steria with offices in France, Germany, Romania, and North America.

Ownership category

akta.pro rank

Product category

Defense & Security Systems Integration

NAICS

Computer Systems Design Services (541512), Custom Computer Programming Services (541511)

SIC

Services-Computer Integrated Systems Design (7373), Services-Computer Programming, Data Processing, Etc. (7370)

akta.pro primary industry

Autonomy Software, AI & Mission Management (UAS/UXV) (IMABAIAH)

akta.pro secondary industries

Cloud Security Posture Management (CSPM) (HDADADAB), IT Governance, Risk & Compliance (IT GRC) Platforms (HDAEALAK)

Keywords

• Defense systems integration
• Critical communications systems
• Tactical communications solutions
• Embedded systems engineering
• Cybersecurity solutions

Headquarters

HQ city

Le Plessis-robinson

HQ country

France

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Systems Design & Integration: Design, architecture, and integration of information and communication systems for critical operations
2. Data Valorization Services: Valorization of useful data for operational mission execution

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

CS GROUP operates as a designer-integrator-operator (concepteur-intégrateur-opérateur) of mission-critical information and communication systems. The company conceives system architectures, integrates them, and valorizes operational data for clients in defense, public security, space, aeronautics, transport, energy, and Industry 4.0. Its portfolio spans seven core solution areas: surveillance and command systems, vocal and tactical communications, cybersecurity, safe industrial and embedded systems, AI-driven data intelligence, digitalization of industrial processes, and simulation and training.

Product overview

CS GROUP operates as a designer-integrator-operator (concepteur-intégrateur-opérateur) providing information and communication systems oriented toward clients' operational challenges. The company delivers architecture, integration, and data valorization services. Its portfolio consists of seven core solution areas: Surveillance & Command Systems, Vocal & Tactical Communications, Cybersecurity, Safe Industrial & Embedded Systems, Data Intelligence (AI-powered), Digitalization of Industrial Processes, and Simulation & Training. The company serves five key markets: Defense & Public Security, Space, Aeronautics, Transport, and Energy/Industry 4.0. Notable solutions include counter-drone systems and Maintenance 4.0 platforms.

Differentiator

Problem solved

Functional benefit

Products and services

• Surveillance & Command Systems (Systèmes de surveillance & commandement)
• Vocal & Tactical Communications (Communications vocales & tactiques)
• Cybersecurity (Cybersécurité)
• Safe Industrial & Embedded Systems (Systèmes sûrs industriels & embarqués)
• Data Intelligence
• Digitalization of Industrial Processes (Digitalisation des processus industriels)
• Simulation & Training (Simulation & Entraînement)
• Counter-Drone (Lutte anti-drones)
• Maintenance 4.0

Named customers2 records

Segments6 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability1 record

Feature8 records

Partnerships

Three partnerships are on record, tiered core.

• ThalescoreStrategic or Co-development Partner · 24 November 2025Thales has partnered with CNN MCO and CS Group to form a fully French and sovereign industrial consortium dedicated to modernizing three amphibious helicopter carriers of the French Navy. The partnership aims to enhance naval performance as part of the operational maintenance program for the French Navy's vessels, with deployment scheduled until 2027 starting with the Mistral vessel.
• CNN MCO (subsidiary of Equans France)coreStrategic or Co-development PartnerCNN MCO, a subsidiary of Equans France, is part of the sovereign industrial consortium with Thales and CS Group for French Navy vessel modernization. The consortium combines expertise in naval systems, navigation, and operational maintenance.
• Sopra SteriacoreOthersCS Group is a subsidiary of Sopra Steria, a major European IT services company. This parent-subsidiary relationship provides CS Group with the backing and resources of a larger corporate group while maintaining its specialized focus on critical operational systems.

Scale indicators2 records

Recent moves5 records

Expansion highlights6 records

Direct peers

• Atos: Atos is a French-headquartered IT services and systems integration group with significant defense, space, and public-sector mission-critical systems practices. Comparable as a European mid-to-large IT services peer pursuing sovereign defense and aerospace digitalization contracts.
• CGI Group: CGI is a Canadian IT and business consulting services firm with a large defense, space, and government systems integration practice across North America and Europe. Comparable as a mid-to-large IT services peer delivering mission-critical systems for defense and aerospace clients.
• Hensoldt: Hensoldt is a European defense electronics specialist focused on sensors, surveillance, communications, and mission management for military and security customers. Highly comparable as a European mid-cap mission-systems specialist competing in adjacent defense electronics categories.
• Indra Sistemas: Indra is a Spanish IT and defense systems company designing and integrating command and control, surveillance, tactical communications, and cybersecurity solutions for European armed forces. Comparable as a regionally-rooted, sovereign-focused defense systems integrator.

Broad incumbents

• Naval Group: Naval Group is the French naval defense prime building warships and submarines for the French Navy, including the PHA amphibious helicopter carriers CS Group is helping modernize. Comparable as a sovereign industrial partner in the same naval modernization ecosystem.
• Thales: Thales is a global French defense and aerospace electronics prime with deep overlap in surveillance, command, tactical communications, cybersecurity, and space. CS Group is a consortium partner to Thales on the French Navy PHA modernization, but Thales operates as a far broader incumbent across mission systems.
• Airbus Defence and Space: Airbus Defence and Space is a major European prime across military aircraft, space systems, and satellite operations, including EU SST capabilities. Comparable overlap in aeronautics and space mission systems, though at prime-contractor scale.
• Capgemini: Capgemini is a global IT services leader with dedicated defense, aerospace, space, and energy practices, including systems design, integration, and Industry 4.0 transformation. Comparable in service portfolio breadth and target verticals, though at substantially larger scale.
• Safran Electronics & Defense: Safran is a major French aerospace and defense group with electronics, navigation, surveillance, and optronics offerings relevant to military and security missions. Comparable in navigation and mission-critical electronics, though embedded within a much broader propulsion-and-equipment portfolio.

Emerging players

• Dassault Systèmes: Dassault Systèmes provides industrial digitalization, simulation, and digital twin platforms used across aerospace, defense, and Industry 4.0 transformations. Comparable overlap with CS Group's industrial process digitalization and simulation & training offerings, but Dassault Systèmes is software-native and global.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/cs-group

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries2 records

Funding overview

Funding rounds

Investors

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

M&A

Investments

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

Frequently asked questions about CS GROUP