S3NS

What S3NS does

S3NS is a French sovereign cloud provider created in June 2022 as a joint venture between Thales (majority owner with full operational control) and Google Cloud (minority technology partner). The company's core purpose is to deliver hyperscale Google Cloud technology within a legally and operationally sovereign framework that satisfies French and European regulatory requirements — most notably SecNumCloud 3.2 qualification from ANSSI, which grants immunity from non-European extraterritorial laws. S3NS offers two flagship products: PREMI3NS, the SecNumCloud 3.2-qualified "Cloud de Confiance" that reached general availability in October 2025 and provides IaaS, PaaS, and CaaS services across BigQuery, GKE, Cloud SQL, Compute Engine, and planned Vertex AI capabilities; and CRYPT3NS, an earlier-generation offering providing cryptographic key management and data localization that serves as a stepping stone to PREMI3NS. All infrastructure is operated exclusively by S3NS employees from three dedicated, isolated datacenters in the Paris region, with a fourth region in Berlin forthcoming under a Thales-controlled German entity.

S3NS targets French and European regulated industries — Operators of Vital Importance, public administration, insurance and financial services, defense and aerospace, healthcare, and energy — where data sovereignty and protection from extraterritorial access are procurement prerequisites. Named customers include MGEN (serving up to 6 million beneficiaries), Thales (parent company and strategic anchor), EDF, Matmut, AGPM, Qonto, Club Med, Birdz/Veolia, Posos, and AP-HP's surgical innovation chair, totaling over 70 customers as of April 2026. Revenue is generated primarily through consumption-based cloud subscriptions, supplemented by managed services, technical support, and partner-led implementation work. Pricing is quote-based and not publicly disclosed, with enterprise contracts typically including committed-use discounts on a monthly billing cadence.

Go-to-market combines direct enterprise field sales with a substantial ecosystem of over 40 system integrators (Sopra Steria, SFEIR, PASàPAS) and ISVs (SAP, Mistral AI, MongoDB, Elastic, OpenText, Craft AI). Distribution also includes the EU Cloud III procurement framework via the Proximus consortium (€180 million tender). The company is led by President Hélène Bringer and CEO Cyprien Falque, with Walter Cappilati serving in a senior capacity, and has grown from a few dozen collaborators at founding to 51-100 employees currently, with 50+ additional roles being added for German operations. As of 2026 S3NS has been recognized as a Leader in the Forrester Wave for Sovereign Cloud Platforms and won Google Cloud's 2026 Partner of the Year in the Sovereign Cloud category.

Name

S3NS

Legal name

Thales Cloud Sécurisé SAS

Website

https://s3ns.io

Company type

Private

Founded year

2022

Operating status

Operating

Headcount range

51–100 employees

Short description

S3NS is a French sovereign cloud joint venture majority-owned by Thales with Google Cloud as minority technology partner, providing SecNumCloud 3.2-qualified IaaS/PaaS/CaaS services (PREMI3NS) and cryptographic data localization (CRYPT3NS) to European regulated industries including insurance, defense, healthcare, energy, and public administration.

Ownership category

akta.pro rank

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. Cloud Infrastructure Services (PREMI3NS): S3NS generates revenue through subscription-based cloud infrastructure services combining Google Cloud IaaS, PaaS, and CaaS capabilities. Customers pay for compute, storage, database, AI/ML, and other cloud services operated under SecNumCloud-qualified sovereign infrastructure. Revenue is consumption-based with commitment models available for enterprise customers.
2. CRYPT3NS Services: Cryptographic control and enhanced security services providing external key management, data localization, and European support. Offered as an add-on or standalone service for customers seeking incremental security controls.
3. Managed Services and Support: Technical support, customer engineering, and managed services for cloud operations, landing zone setup, and ongoing optimization.

Pricing tiers

Go-to-market motion2 records

Distribution channels5 records

Marketing channels8 records

Core offering

S3NS provides sovereign cloud infrastructure services combining Google Cloud IaaS, PaaS, and CaaS technology with Thales' security expertise. Its flagship offering PREMI3NS is a SecNumCloud 3.2-qualified "Cloud de Confiance" operated exclusively by S3NS employees in French data centers, providing immunity from non-European extraterritorial laws. The company also offers CRYPT3NS, a complementary solution providing enhanced local controls, data localization in France/Europe, and cryptographic key management operated by S3NS.

Product overview

S3NS offers a portfolio of sovereign cloud solutions combining Google Cloud technology with Thales security expertise, operated by a French company entirely controlled by Thales. The core offering consists of PREMI3NS, a SecNumCloud 3.2-qualified trusted cloud providing IaaS, PaaS, and CaaS services; CRYPT3NS, an earlier-generation offering with enhanced local controls serving as a migration path to PREMI3NS; and access to Google Cloud's full service catalog through a certified partnership model. All services are operated from French data centers, providing immunity from extraterritorial laws and meeting stringent European security standards.

Differentiator

Problem solved

Functional benefit

Products and services

• PREMI3NS SecNumCloud 3.2-qualified trusted cloud offering providing IaaS, PaaS, and CaaS services based on Google Cloud technology. Operated exclusively by S3NS employees in French data centers with immunity from non-European extraterritorial laws. Targets regulated industries including insurance, finance, healthcare, defense, and public administration.
• CRYPT3NS Cloud solution with enhanced local controls providing data localization in France/Europe, cryptographic access control operated by S3NS, and European technical support. Serves as a migration path toward PREMI3NS for organizations requiring regional sovereignty and compliance.
• Google Cloud Partnership Services Certified Google Cloud partner providing access to Google Cloud's portfolio of cloud services including BigQuery, GKE, Compute Engine, Cloud SQL, and Vertex AI, operated within sovereign French infrastructure. Delivers hyperscaler innovation with European sovereignty controls.
• S3NS Technical Support Technical support, customer engineering, and managed services for cloud operations, landing zone setup, and ongoing optimization. Provides European-based technical support operated by S3NS employees.

Quantifiable outcome

• Organizations achieve 75% reduction in deployment time for new application features through infrastructure modernization
• +3 more outcomes

Named customers12 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

AI capability7 records

Feature5 records

Partnerships

Nine partnerships are on record, tiered core, major and minor.

• Google CloudcoreStrategic or Co-development Partner · 20 May 2026Google Cloud is the minority technology partner providing IaaS, PaaS, and CaaS technology to S3NS. The partnership enables S3NS to offer Google Cloud services under French/German sovereign control. Google provides technology while S3NS operates, secures, and manages the infrastructure independently, with all updates validated through quarantine zones before deployment.
• SAPcoreStrategic or Co-development Partner · 27 April 2026Strategic partnership to deploy SAP RISE private cloud edition on S3NS's SecNumCloud-qualified PREMI3NS platform. Thales is the first customer, undertaking ERP transformation covering finance, supply chain, manufacturing, and procurement. Solution targets regulated sectors including aerospace, defense, and public administration.
• Proximus (EU Tender Consortium)majorChannel Partner/ Reseller/ Distributor · 17 April 2026S3NS is part of the Proximus consortium selected for EU's €180 million sovereign cloud tender. The consortium includes S3NS, Clarence, and Mistral AI, enabling S3NS services to be procured by EU institutions.
• OpenTextmajorStrategic or Co-development Partner · 13 April 2026Partnership to deliver European sovereign cloud solutions combining OpenText's information management expertise with S3NS's SecNumCloud-qualified platform. Initial offerings include Content Management, Documentum, and Core Archive for SAP supporting GDPR and SecNumCloud 3.2 standards.
• Mistral AImajorTechnology or Integration · 29 April 2025Partnership to make Mistral Platform available on S3NS's trusted cloud, including the best Mistral models, Le Chat, and associated tools. Enables S3NS customers to access sovereign AI capabilities within a secured environment.
• MongoDBmajorTechnology or Integration · 29 April 2025Partnership to offer managed MongoDB NoSQL database service entirely operated in France and integrable with Google Cloud services. Solution maintains same codebase, APIs, and tools as standard offering while ensuring sovereignty and compliance.
• SFEIRminorImplementation/ SI/ Consulting Partner · 22 November 2023Official partnership with independent tech consultancy to accompany organizations in cloud transition. SFEIR provides Cloud Foundations, Landing Zone setup, and training for CRYPT3NS and PREMI3NS offerings.
• PASàPAS (Talan Group)minorImplementation/ SI/ Consulting Partner · 26 October 2023Partnership to offer SAP hosting on S3NS cloud. PASàPAS, a SAP specialist with 400 employees serving 350 clients, deploys and operates SAP S/4HANA on CRYPT3NS with data localization in France.
• Sopra SteriamajorImplementation/ SI/ Consulting Partner · 25 October 2023Partnership to deploy data and AI solutions for financial services and regulated markets. Sopra Steria contributes its expertise with 1500+ financial institutions to integrate S3NS solutions in the banking ecosystem.

Scale indicators8 records

Recent moves10 records

Expansion highlights6 records

Direct peers

• Scaleway: European cloud provider owned by Iliad, focused on sovereignty and price competitiveness. Competes with S3NS for European public sector and regulated customers and is pursuing SecNumCloud qualifications of its own.
• Outscale (Dassault Systèmes): French sovereign cloud provider owned by Dassault Systèmes, SecNumCloud-qualified, competing for the same French public sector and regulated enterprise customers as S3NS.
• OVHcloud: French public cloud provider that has historically been the dominant SecNumCloud-qualified cloud in France. Competes with S3NS for the same regulated public sector, enterprise, and OIV/OSE customers, but operates its own infrastructure rather than reskinning a hyperscaler.
• Bleu: Joint venture between Orange, Capgemini, and Microsoft building a 'Cloud de Confiance' offering based on Microsoft Azure, positioned to compete head-to-head with S3NS in French regulated workloads with a different hyperscaler partner.
• T-Systems Sovereign Cloud: Deutsche Telekom's sovereign cloud subsidiary that co-shares the Forrester Wave 'Leader' designation with S3NS for the Google Cloud partner-operated sovereign cloud model. Operates the German counterpart of the S3NS-style architecture under German jurisdiction.

Broad incumbents

• Microsoft Cloud for Sovereignty: Microsoft's sovereignty-focused cloud offering, which underlies Bleu. Competes with S3NS for European regulated workloads through both Bleu and direct hyperscaler relationships, offering broader service portfolios at the cost of operational sovereignty.
• AWS European Sovereign Cloud: Amazon's planned sovereign cloud region in Brandenburg, Germany, designed to address European sovereignty requirements. A hyperscaler-led sovereign offering that competes with S3NS at the infrastructure layer, particularly for German and EU institutional buyers.
• Thales (Parent / Internal Cloud): S3NS's majority owner and largest customer. Thales itself has internal cybersecurity and defense IT capabilities; any shift in its internal cloud strategy directly affects S3NS's anchor customer relationship and overall strategic direction.
• Google Cloud (Sovereign Controls): The hyperscaler technology provider behind S3NS. Google Cloud itself offers sovereign controls and partner-operated models; while it is S3NS's strategic partner, it is also a competitor in the broader sovereign cloud market through other partners and its own European offerings.

Others

• Sopra Steria (Cloud & Sovereign Services): European IT services group and one of S3NS's largest system integrator partners. Comparable to the S3NS ecosystem play in financial services and regulated markets, though operating as an SI rather than an infrastructure provider.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@S3NScloud
• LinkedInlinkedin.com/company/s3nscloud

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 S3NS