S3NS
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.
- Company typePrivate
- Founded2022
- HeadquartersParis, France
- Headcount51–100
- GTM typeB2B
- OfferingSoftware
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.
S3NS firmographics
Firmographics- 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
Where S3NS is headquartered
LocationHeadquarters
- HQ city
- Paris
- HQ country
- France
- HQ region
- Europe
Offices4 records
Markets served
S3NS business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Personnel, Infrastructure, Operations, Marketing or Sales
Revenue model
- 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.
- 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.
- Managed Services and Support: Technical support, customer engineering, and managed services for cloud operations, landing zone setup, and ongoing optimization.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Usage-based | Monthly | Enterprise cloud services with consumption-based pricing |
Go-to-market motion2 records
Distribution channels5 records
Marketing channels8 records
S3NS product offering
Product offeringCore 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
Companies that use S3NS
Customer profileNamed customers12 records
Segments5 records
Ideal customer profiles4 records
S3NS technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration7 records
AI capability7 records
Feature5 records
S3NS partnerships and signals
Strategic signalPartnerships
Nine partnerships are on record, tiered core, major and minor.
- Google CloudcoreGoogle 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 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)majorS3NS 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.
- OpenTextmajorPartnership 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 AImajorPartnership 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.
- MongoDBmajorPartnership 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.
- SFEIRminorOfficial 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)minorPartnership 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 SteriamajorPartnership 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
S3NS competitors and assessment
Company assessmentDirect 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
S3NS social profiles
Digital presenceS3NS compliance and trust
Trust signalCompliance5 records
S3NS financial estimates
Financial estimateRevenue estimate
Valuation estimate
S3NS leadership team
Management profileNumber of profiles
Profiles6 records
S3NS funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
S3NS M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about S3NS
What does S3NS do?
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.
Is S3NS a public or private company?
S3NS is a private company. It is classified as corporate owned and is currently operating.
When was S3NS founded?
S3NS was founded in 2022. It employs 51 to 100 people.
Where is S3NS based?
S3NS is headquartered in Paris, France, in the Europe region.
How does S3NS make money?
Three revenue lines are on record. Cloud Infrastructure Services (PREMI3NS) is the primary driver. The others are CRYPT3NS Services and managed Services and Support.
Who are S3NS's main competitors?
Direct peers on record are Scaleway, Outscale (Dassault Systèmes), OVHcloud, Bleu and T-Systems Sovereign Cloud. Broad incumbents are Microsoft Cloud for Sovereignty, AWS European Sovereign Cloud, Thales (Parent / Internal Cloud) and Google Cloud (Sovereign Controls). Sopra Steria (Cloud & Sovereign Services) is listed as an others.
Does S3NS have an API?
No public API is recorded for S3NS.