Cloud sovereignty without compromise

A sovereign cloud enables your organisation to maintain control over its data, operations, and technology choices, while still benefiting from hyperscaler services. It goes beyond where the data is stored to determine who can access it, who runs it, and how it is governed.

There are three aspects to a sovereign cloud:

• Data sovereignty 
  Organisations embed processes to ensure that all data remains protected under the intended jurisdiction with clear access controls and protection against unwanted extraterritorial access (often via encryption and key control).

• Operational sovereignty 
  Organisations clearly define the operational control of their cloud (e.g. who administers, who has privileged access, and who can intervene), along with local oversight and auditable governance.

• Technological sovereignty 
  Organisations are empowered to design, operate, and evolve their cloud services without vendor lock-in. This involves portability, exit options, open standards, and architecture choices that avoid hard lock-in.

Cloud sovereignty is redefining how organisations approach modern cloud programmes, shifting the emphasis from rapid migration to building trust, control, and resilience while continuing to innovate. It has become a board- and regulator-level concern, shaping cloud strategies across regulated industries and critical infrastructure. The scope now extends well beyond data residency to include end-to-end governance, third-party risk, operational resilience, and protection from cyber threats and foreign interference.

Organisations are striving to retain the benefits of the cloud – scalability, agility, and AI enablement – while designing environments built on clear policies, strong controls, and transparent ownership.

In practice, sovereignty is enabled through identity and privileged access management, zero-trust principles and customer-controlled encryption, rather than complete separation from hyperscalers. Increasingly, these foundations are also tightly linked to AI readiness, allowing sensitive data to be used safely and compliantly.

With cloud playing a central role in driving transformation and strategic outcomes, the development of a sovereign cloud strategy must extend beyond IT. Meaningful involvement from business leaders, compliance, and data management teams is essential to ensure alignment, accountability, and long-term value. To achieve this, your organisation should:

1. Define your sovereign strategy 
   Agree what sovereignty means for you in terms of risk appetite, regulatory drivers, and critical workloads and ensure project ownership goes beyond IT to include business, compliance, data, and security teams.
   
   
2. Select the right sovereignty model(s) 
   Match your workloads, data sensitivity, compliance needs, and operational control requirements to the right approach, for example public cloud with sovereign controls, partner-operated sovereign cloud, or private/hybrid sovereign zones. 
   
   
3. Set clear boundaries 
   Define the data, metadata, and operations that need to remain in Belgium or the EU and what can be global. Support this by establishing procedures to prevent or control cross-border flows and making testing part of the design.
   
   
4. Design the architecture and controls 
   Translate sovereignty requirements into architecture and governance. This includes identification and access, key management, logging and auditability, network boundaries, segmentation, and resilience.
   
   
5. Build the right partnerships and operating model 
   Choose partners and providers that can meet your sovereignty requirements in practice, not just on paper. This starts by embedding sovereignty by design through contracts, governance, and day-to-day operations.

PwC Belgium supports organisations to design and adopt a sovereign cloud approach end-to-end. We help you define what sovereignty means in your context, assess your current posture, design an appropriate target model, and deliver a pragmatic roadmap you can execute. We support you to comply with EU and Belgian regulations while maintaining cloud agility.

• Framework-led approach 
  We use a structured methodology to translate sovereignty objectives into concrete requirements (data, access, operations, and vendor controls), assess maturity, and guide decisions such as provider selection, governance, and architecture. EU frameworks, like the Cloud Sovereignty Framework, are also taken into account, so your organisation can reach your desired sovereignty effectiveness assurance level (SEAL).
  
  
• Belgian and EU regulatory expertise 
  Our teams combine cloud engineering with local regulatory insight (e.g., GDPR, NIS2, and emerging schemes such as EUCS). We turn complex obligations into actionable design and operating requirements, so your cloud is compliant by design and ready for evolving expectations.
  
  
• Experience in regulated sectors 
  We support Belgian clients in highly regulated environments, helping them align cloud decisions with supervisory expectations and implement security and governance controls that work in practice.

• Define your sovereignty vision 
  Clarify objectives, sensitive data, critical workloads, and jurisdictional requirements; align business, IT, risk, and compliance on measurable goals.

• Assess maturity and gaps 
  Review data residency, encryption, identity and access, operating model, governance, and third-party dependencies to identify risks and priority gaps.

• Design the target model 
  Select the right mix (sovereign public cloud capabilities, hybrid patterns, and/or trusted partner solutions) and define controls such as key management, access governance, auditability, and portability to limit lock-in.

• Build a phased roadmap 
  Sequence quick wins and longer-term changes (architecture, processes, skills, and vendor contracts), with clear milestones and governance checkpoints.

Throughout this journey, PwC Belgium acts as a holistic partner – from strategy to execution. We can implement the solutions we design, leveraging our local cloud engineers and alliance partnerships (for instance, our strategic alliance with Microsoft for sovereign cloud solutions). We also provide ongoing support in areas like continuous compliance monitoring, resilience testing, and audit preparation, so your sovereign cloud remains robust as laws or threats change. Our approach is grounded in the belief that sovereignty must be built-in from the start – not an afterthought. By embedding jurisdictional controls, encryption, and governance into your cloud architecture up front, PwC Belgium helps you achieve sovereignty by design.