Constellation

What Constellation does

Constellation is a French multi-specialist IT services group (ESN) founded in 2016 and headquartered in Saint-Cloud, France. The company targets French mid-sized enterprises (ETIs — Entreprises de Taille Intermédiaire) and selected large enterprises with a full-stack service offering spanning IT infrastructure, cloud and managed services, cybersecurity, data and applications, and digital transformation consulting. Operations are organized around four core business units (Fondations IT, Cloud & Infogérance, Transformation & Résilience, Data & Applications) and approximately 11 wholly-owned subsidiary brands delivering specialized capabilities, including Login Sécurité (cybersecurity/PASSI-qualified SOC), Novahé (IBM infrastructure integration), Easyteam (cloud migration and managed services), Clariteam (datacenter proximity services), Ekyo (carbon footprint management), STELR (executive IT consulting), Tyr Networks (sovereign connectivity), and Endexar (SAP environment management).

Revenue is generated through professional services engagements, managed-services contracts, and project-based consulting, delivered via direct enterprise field-sales teams and account managers across a 14-agency territorial network in Metropolitan France and one location in Mauritius. The group holds Platinum-level partnerships with Oracle and IBM, Gold partnership with Microsoft, and maintains a technology stack spanning IBM Power Systems, SAP, Azure, AWS (for FinOps), and proprietary platforms including the Tyr One unified network management console and the Ekyo carbon analytics platform. AI capabilities are deployed as feature layers within service offerings — including AI copilots for finance cycle automation and sovereign AI deployment — rather than as standalone products.

In 2024 Constellation became an Entreprise à Mission, legally committing to reduce carbon intensity by 50% by 2030, and the same year raised €116M from 3i Group (succeeding Qualium Investissement) to finance continued roll-up M&A. Reported revenue reached €212M in 2024 with 800 employees; the company serves 1,500+ clients across defense, retail, banking, pharmaceutical, construction, and public-sector verticals, with marquee engagements including Dassault Aviation (20+ years), Decathlon, CNETP, Banque Fiducial, Seqens, and Bonduelle.

Name

Constellation

Legal name

CONSTELLATION SAS

Website

https://constellation.fr

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Constellation is a French multi-specialist IT services group serving French ETIs and large enterprises with cloud, cybersecurity, infrastructure, and consulting services across 14 agencies and 11 subsidiary brands, reporting €212M revenue in 2024.

Ownership category

akta.pro rank

Product category

IT Managed Services and Consulting

NAICS

Computer Systems Design and Related Services (54151)

SIC

Communications Services, Nec (4899)

akta.pro primary industry

ESG Data Platforms, Controls & Audit Readiness (Data quality, internal controls) (EUAHAJAN)

akta.pro secondary industry

IT Governance, Risk & Compliance (IT GRC) Platforms (HDAEALAK)

Keywords

• IT managed services
• Cloud infrastructure
• Cybersecurity services
• Digital transformation
• Enterprise IT consulting

Headquarters

HQ city

Saint-cloud

HQ country

France

HQ region

Europe

Offices15 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. IT Services and Consulting: Multi-specialist IT services including strategic consulting, technology expertise, and operational deployment. Revenue is generated through professional services engagements, managed services contracts, and project-based consulting engagements across infrastructure, cloud, cybersecurity, and data domains.
2. Managed Cloud Services: Cloud and infogérance (IT infrastructure management) services including hosting, migration, and operational management of IT environments.
3. Cybersecurity Services: Cybersecurity services including audits, penetration testing, SOC operations, and security consulting through subsidiary Login Sécurité.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Constellation is a French multi-specialist IT services group (ESN) that designs, delivers, and operates information systems for mid-sized and large French organizations. Its portfolio spans IT infrastructure, hybrid cloud and managed services (infogérance), cybersecurity (SOC, pentesting, audits), data and application modernization, and digital transformation consulting, delivered through 11+ specialized subsidiaries and 14 regional agencies across France and overseas territories.

Product overview

Constellation is a French IT services group (ESN) offering a multi-specialist portfolio approach combining strategic consulting, technology expertise, and operational deployment. The group operates through distinct business units (Cloud & Infogérance, IT Foundations, Transformation & Résilience, Data & Applications) and manages approximately 11 subsidiary brands ('étoiles'): Login Sécurité (cybersecurity/SOC), Novahé (IBM infrastructure), Easyteam (cloud/managed services), Clariteam (datacenter proximity), Ekyo (carbon footprint), STELR (IT consulting), Kabeen (software), Kanopée (training), Tyr Networks (connectivity), Tionis (security integration), and Kapela (network). Recent acquisitions include Endexar (SAP), Feelserv (cloud), and ILKI (consulting). The group targets French mid-sized companies (ETIs) with a focus on hybrid cloud, cybersecurity, and sustainable IT.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• Carbon intensity reduced to 35.9 t CO2/ETP with target of 50% reduction by 2030
• +1 more outcomes

Named customers8 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability6 records

Feature3 records

Partnerships

Four partnerships are on record, tiered major.

• OraclemajorTechnology or IntegrationEasyteam subsidiary is Oracle Platinum Partner, providing cloud migration and managed services for Oracle environments.
• IBMmajorTechnology or IntegrationNovahé is IBM Platinum partner specializing in IBM Power Systems and storage infrastructure. Easyteam is also IBM Platinum partner.
• MicrosoftmajorTechnology or IntegrationConstellation has Microsoft Gold partnership status, providing Azure cloud services and Microsoft 365 implementations.
• SAPmajorTechnology or IntegrationEndexar subsidiary is SAP certified cloud solutions provider, specializing in SAP environment management and SAP vulnerability assessment.

Scale indicators12 records

Recent moves12 records

Expansion highlights6 records

Direct peers

• Devoteam: French-headquartered IT consulting and services firm focused on cloud, cybersecurity, and digital transformation across EMEA. Comparable to Constellation in mid-market and enterprise IT services positioning, multi-specialist model, and similar size tier.
• Inetum: French IT services group providing consulting, software, and infrastructure solutions across multiple verticals. Comparable to Constellation in multi-specialist ESN positioning, French mid-market focus, and acquisition-led growth history.
• Econocom: French-Belgian IT services and digital transformation provider serving mid-market and enterprise clients. Comparable to Constellation in IT infrastructure, managed services, and French/European mid-market customer focus.
• SPIE ICS: French IT services arm of SPIE group, specializing in infrastructure, cloud, cybersecurity, and managed services for mid-market and enterprise clients. Closely comparable to Constellation in service portfolio and French mid-market customer focus.
• Hardis Group: French IT services and software publisher serving enterprise clients with consulting, cloud, and digital transformation services. Comparable to Constellation in French mid-market focus and multi-specialist positioning.
• Aubay: French IT services and consulting firm with strong presence in financial services, energy, and telecom verticals. Comparable to Constellation in IT services delivery model and French/European enterprise customer base.
• Helpline: French managed services provider specializing in IT infrastructure, cloud, and cybersecurity for mid-market clients. Comparable to Constellation in mid-market French IT services positioning and managed services focus.

Broad incumbents

• Sopra Steria: Major European IT services group headquartered in France, offering consulting, digital services, and software development across multiple verticals. Larger and broader than Constellation, but a direct competitor in French enterprise IT services and managed infrastructure.
• Capgemini: Global IT services and consulting leader with deep French roots, providing cloud, cybersecurity, infrastructure, and digital transformation services. Operates across the same service lines as Constellation but at vastly greater scale and international breadth.
• Atos: Global IT services giant headquartered in France, providing cloud, cybersecurity, infrastructure, and digital transformation services. Direct overlap with Constellation in service offerings despite significantly larger scale and recent financial restructuring.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@move4climate_paris
• LinkedInlinkedin.com/company/constellation-group

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries12 records

Funding overview

Funding rounds2 records

Investors3 records

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

M&A7 records

Investments

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

Frequently asked questions about Constellation