Cloud Migration for SMEs: From Strategy to Execution

Cloud Migration for SMEs: From Strategy to Execution

For many small and mid-sized businesses, moving to the cloud is no longer a question of "if" but of "how". On-premises servers are ageing, maintenance takes up more and more time, and staff expect to reach their applications from anywhere. A successful cloud migration delivers scalability, cost efficiency and modern functionality. Without proper planning, though, it can turn into an expensive lesson. In this guide we share a proven approach to cloud migration, written specifically for SMEs in the Netherlands.

Key takeaways (TL;DR)

• Hybrid cloud is often the best choice for SMEs: Microsoft 365/Azure combined with on-premises systems
• Migration phases: assessment (2-4 weeks), planning (2-4 weeks), migration (4-8 weeks), optimisation (ongoing)
• Choose the right strategy for each application: rehost, refactor, replace or retire
• Set aside 15-25% of the budget for contingencies: migrations always take more time and money than planned
• Microsoft 365 as the starting point: an accessible first step that delivers immediate productivity gains

Why migrate now?

In 2026, the case for moving to the cloud is stronger than ever.

Changing work patterns

Hybrid working is the norm. Staff expect the same access and performance at home as they get in the office. On-premises servers with VPN access can technically deliver this, but the user experience often falls short.

Ageing infrastructure

The average server lasts five to seven years. Many SMEs are running on hardware that is due for replacement. Replacing it with new on-premises servers is an option, but it requires a large investment with a long depreciation period.

Security requirements

Security requirements are getting stricter. NIS2 compliance, ransomware protection and 24/7 monitoring are easier to achieve in a cloud environment with built-in security features.

Cost and scalability

Cloud costs are operating expenses rather than capital investments. You pay for what you use and can easily scale up or down. That gives you financial flexibility that on-premises infrastructure simply can't offer.

Defining your migration strategy

No two migrations are the same. The right strategy depends on your applications, requirements and budget.

The six Rs of cloud migration

Microsoft and AWS use a model with six migration paths:

Practical choices for SMEs

For most SMEs, a combination of strategies is the most practical route:

• Email and productivity: to Microsoft 365 (Repurchase)
• File server: to SharePoint Online or Azure Files (Replatform)
• Industry-specific application: to the cloud version, if available (Repurchase)
• Custom applications: to Azure VMs or rebuilt (Rehost/Refactor)
• Local print and network services: keep on-premises (Retain)

Preparation phase

Good preparation prevents problems during the migration.

Inventory

Start with a complete inventory of your current environment:

Applications

• Which applications are in use?
• How many users per application?
• Are there dependencies between applications?
• Which versions and licences?

Data

• How much data is stored, and where?
• Which data is active and which is archive?
• Are there compliance requirements (GDPR, industry-specific)?

Infrastructure

• Which servers are there, and what do they do?
• Network design and segmentation?
• Current backup and disaster recovery?

Users

• How many users, at which locations?
• Which internet connections?
• Any special requirements (remote workers, external sites)?

Choosing a cloud platform

For Dutch SMEs, Azure and Microsoft 365 are often the logical choice because of:

• Integration with familiar Microsoft products
• Data centres in the Netherlands for GDPR compliance
• A broad partner ecosystem for support
• Combined licensing for productivity and security

AWS and Google Cloud are strong alternatives, particularly for businesses with a development focus or specific workloads.

Budget and business case

Cloud migration requires investment in:

• One-off migration costs (consultancy, project hours)
• Monthly cloud subscriptions
• Any licence upgrades
• Training for staff and the IT team

Factor in the savings too:

• No hardware replacement needed
• Lower energy and cooling costs
• Less IT management (if outsourced)
• No costs for physical space

For most SMEs the business case is positive, especially when hardware would otherwise need replacing.

Execution phase

With preparation complete, the actual migration begins.

Migration order

You don't have to do everything at once. A phased approach reduces risk:

Phase 1: Email and productivity

• Migration to Microsoft 365
• OneDrive for personal files
• Teams for communication

Phase 2: File server

• Migration to SharePoint Online or Azure Files
• Sync clients on workstations
• Transfer of permissions

Phase 3: Applications

• Industry applications to cloud versions
• Custom software to Azure VMs
• Testing links and integrations

Phase 4: Clean-up

• Decommission on-premises servers
• Back up historical data
• Update documentation

Coexistence period

During the migration, the old and new environments run side by side. This calls for:

• Clear communication about which environment to use when
• Synchronisation of critical data
• Monitoring of both environments
• A fallback procedure in case of problems

Testing and validation

Before you switch off the old environment:

• Test all applications with a pilot group
• Validate that all data has been migrated correctly
• Check access rights and permissions
• Run a disaster recovery test
• Verify backup procedures

Security considerations

A cloud migration is the ideal moment to strengthen your security.

Identity and access

Set up the right security foundations straight away:

• MFA for all accounts
• Conditional Access policies
• Privileged access management for administrators
• Just-in-time admin access

Data protection

Protect business data in the cloud:

• Sensitivity labels for classification
• DLP rules for sensitive information
• Encryption for data at rest and in transit
• A backup strategy for cloud data

Monitoring

Set up monitoring from day one:

• Security alerts for suspicious activity
• Audit logging for compliance
• Performance monitoring for applications
• Cost monitoring to avoid surprises

Common challenges

Cloud migrations rarely go without a hitch. Be prepared for these challenges.

Network bandwidth

Cloud applications need sufficient internet bandwidth. Test in advance whether your connection can handle the extra load. Consider an upgrade or a dedicated line for business traffic.

Application compatibility

Not every application runs smoothly in the cloud. Legacy software that only runs locally needs workarounds:

• Remote Desktop Services in Azure
• Application virtualisation
• Rebuilding or replacing it over time

User adoption

Staff are used to the old way of working. Invest in:

• Training on the new tools
• Clear user guides
• A support channel for questions
• Champions who help their colleagues

Unexpected costs

Cloud costs can creep up if you're not paying attention. Prevent this with:

• Budget alerts in Azure Cost Management
• Regular cost reviews
• Rightsizing of resources
• Cleaning up unused resources

After the migration

The migration is complete, but the work doesn't stop there.

Optimisation

In the first few months after migrating:

• Analyse usage patterns
• Scale resources to actual usage
• Identify under-used licences
• Fine-tune security policies based on alerts

Governance

Set clear rules for cloud usage:

• Who is allowed to create resources?
• How are costs allocated internally?
• Which security baseline applies?
• How are changes tested and rolled out?

Continuous improvement

Cloud environments evolve constantly. Keep up with:

• New features that add value
• Security updates and patches
• Cost management and optimisation
• Training on new functionality

Do it yourself or outsource?

Cloud migration is complex. Whether to do it yourself or outsource depends on the following:

Do it yourself when:

• You have experienced IT staff with cloud expertise
• The environment is relatively simple
• You have time to learn and experiment
• Budget for outside help is limited

Outsource when:

• You lack cloud expertise in-house
• The migration is time-critical
• The environment is complex, with many dependencies
• You want to minimise risk

A managed IT partner can carry out the migration and then take over day-to-day management. That gives you access to expertise without hiring permanent staff.

Hybrid approach

Many SMEs opt for a combination:

• The partner carries out the technical migration
• The internal team learns along the way and takes over day-to-day management
• The partner remains available for complex issues and 24/7 support

Real-world example

A Dutch accountancy firm with 45 employees migrated from on-premises servers to Azure and Microsoft 365.

Starting point:

• Two ageing Windows servers (8 years old)
• On-premises Exchange for email
• File server with 2 TB of data
• Industry application with a local database

Approach:

1. Email to Exchange Online
2. Files to SharePoint and OneDrive
3. Industry application to the vendor's cloud version
4. On-premises servers decommissioned

Result:

• Staff can work from anywhere
• No more worries about hardware maintenance
• Better security thanks to integrated Microsoft security
• Predictable monthly costs instead of unexpected investments

Conclusion

Cloud migration is an investment that pays for itself in flexibility, scalability and modern functionality. With the right preparation, a phased rollout and attention to security, the transition goes smoothly.

Start with a clear strategy. Take stock of what you have, decide what moves to the cloud and choose the right platform. Roll out in phases, test thoroughly and bring your people along. And don't forget security: a cloud migration is the perfect moment to raise your security level.

The cloud is waiting. The only question is when you take the step.