Expert Microsoft 365 Migration Services for a Seamless Transition
Move your email, files, and users to Microsoft 365 with zero data loss and minimal downtime. Our certified engineers plan, execute, and support every migration, so your business never skips a beat.
Trusted & recognised
Our Microsoft-certified engineers have delivered hundreds of Microsoft cloud projects across SMB organisations, helping businesses migrate email, collaboration, identities and data securely with minimal disruption.
CRN MSP of the Year
2025
Oxygen Fast-Growth 50
AI Microsoft Partner 2026
Technology Leader of the Year
Tim Rookes, EM Awards
Microsoft Solutions Partner
4 designations
East Midlands Chamber
Strategic Partner
Cyber Essentials Plus
Certified
What are Microsoft 365 migration services?
Microsoft 365 migration services are managed, end-to-end projects that move your organisation's data, workloads, and users from an existing environment into the Microsoft 365 cloud, securely and with minimal disruption.
A typical migration transfers emails, calendars, and contacts to Exchange Online, files and document libraries to SharePoint Online and OneDrive for Business, and user identities into Microsoft Entra ID (Azure AD).
Because these systems underpin how your team communicates and collaborates every day, the process is rarely as simple as copying files. It involves careful sequencing, permissions mapping, licence planning, and validation to preserve data integrity. That complexity is exactly why growing businesses partner with a specialist Microsoft Office 365 migration services provider rather than attempting a high-risk, do-it-yourself move.
Our Microsoft 365 migration services include email migration to Office 365, SharePoint migration services, user onboarding, and complete data migration services Microsoft 365 projects. Whether you're moving from an on-premises environment, Google Workspace, or another cloud platform, we ensure data integrity, security, and minimal disruption throughout the transition. Our cloud migration services support organisations moving email, files, users, and workloads into Microsoft 365 securely and efficiently.
Why partner with experts for your M365 migration?
A DIY migration can look cheaper on paper, until an inbox goes dark or permissions break mid-week. Here is what's at stake, and how a dedicated M365 migration expert removes the risk.
- Limited planning
- Higher risk of downtime
- Internal resource burden
- Limited testing
- Limited post-project support
- Detailed assessment and migration strategy
- Proven phased migration methodology
- Dedicated project manager
- Comprehensive validation and verification
- Ongoing optimisation and user training
- Data loss & corruptionMailboxes, files, and metadata damaged or dropped in transit.
- Extended downtimeTeams locked out of email and documents during working hours.
- Security gapsMisconfigured permissions and identity management leaving the door open to risk.
- Budget overrunsUnforeseen issues, stalled projects, and hidden remediation costs.
- Minimal disruptionPhased, out-of-hours cut-overs keep your team working.
- Enhanced securityMFA, encryption, and compliance enforced end-to-end.
- Deep expertiseCertified engineers who have run hundreds of migrations.
- Cost efficiency & adoptionRight-sized licensing and users who actually use the tools.
Our comprehensive Microsoft 365 migration process
Every engagement follows our proven, phased methodology, a repeatable framework that has delivered hundreds of migrations without data loss. You always know exactly where your project stands.
As part of every project, we assess your Microsoft 365 deployment requirements, licensing, security configuration, and user adoption needs. This ensures your new environment is fully optimised from day one, rather than simply replicating legacy systems in the cloud.
Assessment & planning
We start with an initial consultation and a full analysis of your current infrastructure, including mailboxes, file shares, identities, licensing, and security requirements. From this we build a tailored migration strategy, timeline, and risk plan.
Preparation & execution
We prepare your target environment, run a pilot migration to validate the approach, and then transfer data in scheduled phases with minimal impact on daily operations.
Verification & optimisation
Post-migration checks confirm every mailbox and file arrived intact. We tune performance and run user acceptance testing before sign-off.
Post-migration support & training
Go-live isn’t the finish line. We provide ongoing support, hands-on user training, and adoption assistance so your team gets maximum value from Microsoft 365. Our migration projects also include change management planning to help users adapt quickly and confidently to new ways of working.
Types of Microsoft 365 migrations we handle
From a single Exchange server to a multi-tenant consolidation, we have done it before. Whatever your starting point, we have a proven path to Microsoft 365.
On-premises to Microsoft 365 migration
Move legacy Exchange Server, SharePoint Server, and on-site file shares into the cloud while preserving mailboxes, permissions, workflows, and version history.
Tenant-to-tenant migration
Consolidate or separate Microsoft 365 environments after a merger, acquisition, or divestiture, with identities, mail, and data cleanly moved between tenants.
We specialise in tenant to tenant migration Office 365 projects, ensuring users, permissions, mailboxes, collaboration tools, and business-critical data are transferred securely and efficiently.
Third-party to Microsoft 365 migration
Migrate from Google Workspace or other cloud platforms into Microsoft 365, mapping mail, calendars, and documents to Exchange Online, SharePoint Online, and OneDrive.
Hybrid migrations
A hybrid Office 365 migration allows organisations to maintain secure co-existence between on-premises and cloud environments.
This approach is ideal for phased migrations, complex infrastructures, or where regulatory requirements mean certain systems must remain on-premises.
Key benefits of choosing Truly SMB for Microsoft 365 migration services
We go beyond the technical transfer to deliver measurable business outcomes, and we stay with you long after cut-over.
As a Microsoft Solutions Partner with four Microsoft designations, our Microsoft-certified engineers follow Microsoft's recommended migration methodologies and security best practices. Our team supports more than 300 SMB customers across the UK and United States.
We follow recognised migration best practices and established security frameworks, helping businesses complete cloud projects securely, efficiently, and with minimal disruption.
Our experience across Microsoft 365 migration services, security, infrastructure, and cloud adoption allows us to provide a complete end-to-end service rather than simply moving data from one platform to another. See how this worked for Nuvo, who consolidated legacy servers to the cloud during an acquisition-led growth plan.
Certified experts
Microsoft-certified engineers with deep Modern Work and Azure expertise.
Customised solutions
A migration plan built around your infrastructure and business goals.
Robust security
MFA, encryption, and compliance aligned with GDPR, ISO, and NIST best practices.
Guaranteed data integrity
Verified transfers and reconciliation processes to ensure nothing is left behind.
Dedicated project managers
A single point of contact throughout your project.
Post-migration support
Ongoing assistance, optimisation, and end-user training. Successful Microsoft 365 migrations aren’t only technical projects. Clear user communication, structured training, and adoption planning help employees embrace new ways of working, reduce resistance to change, and ensure your organisation gets the full value from its Microsoft 365 investment.
Illustrative business impact: Successful Microsoft 365 migrations typically improve collaboration, reduce IT administration, and give employees secure access to business systems from anywhere. Results vary depending on your organisation, existing infrastructure, and user adoption.
Trusted by growing businesses
Working with the whole team from Truly SMB has been a fantastic experience. There are no long waits for help, the team communicates in a way we can follow, and always makes sure we’re back up and fully operational in a short space of time.
From the outset, their team has been professional, knowledgeable, and genuinely committed to delivering results. They take the time to understand your business properly and provide clear, practical solutions that actually make a difference. Communication has been excellent throughout.
The switch to Truly SMB has been seamless from day one. The team is always quick to respond, everything is handled professionally, and I’ve been very satisfied with the support provided.
Microsoft 365 migration terms explained
- Microsoft 365 Tenant
- A dedicated instance of Microsoft 365 services provisioned for a single organisation.
- Hybrid Migration
- A strategy where some services remain on-premises while others move to Microsoft 365, enabling coexistence.
- Exchange Online
- The cloud-based email, calendar, and contacts service within Microsoft 365.
- SharePoint Online
- The cloud-based collaboration, document management, and intranet service within Microsoft 365.
- OneDrive for Business
- Secure cloud storage for individual users within Microsoft 365.
- Data Integrity
- The accuracy, consistency, and reliability of data throughout its lifecycle.
- Downtime
- Any period during which a system or service is unavailable.
- Active Directory Sync (Azure AD Connect)
- Synchronises on-premises Active Directory identities with Microsoft Entra ID.
Frequently asked questions about M365 migration
What is Microsoft 365 migration?
Microsoft 365 migration is the process of moving an organisation’s email, files, and user identities from an existing system into the Microsoft 365 cloud while maintaining data integrity and minimising disruption.
What is the best migration tool for Microsoft 365?
There is no single best tool. The right choice depends on the source environment, data volumes, and complexity. Tools are only one part of a successful migration. Planning, validation, and expert execution are equally important.
What are the different types of migration in Office 365?
The most common types include on-premises migrations, tenant-to-tenant migrations, third-party platform migrations, and hybrid migrations.
Can I transfer Office 365 to a new computer?
Yes. Microsoft 365 is cloud-based, so your files, emails, and settings follow your account rather than your device.
How long does a Microsoft 365 migration take?
Timeframes vary based on user count, data volume, and complexity. Smaller environments may be completed within one to two weeks, while larger projects may take several weeks in planned phases.
What are the security considerations during migration?
Security measures include encrypted data transfer, multi-factor authentication, permission auditing, compliance controls, and alignment with standards such as GDPR, ISO, and NIST.
How much do Microsoft 365 migration services cost?
Costs depend on users, data volume, migration type, and support requirements. We provide a tailored proposal following a free assessment.
Ready for a seamless Microsoft 365 migration?
Let our certified experts handle the heavy lifting. Request your free consultation today and start your secure, stress-free move to Microsoft 365.
Free assessment · No obligation · Tailored plan & quote
Free initial consultation
Schedule a call to discuss your current infrastructure and migration requirements.
Assessment & proposal
Receive a tailored migration plan and quotation.
Phased migration
We manage the process with minimal disruption and complete data integrity.
Support & optimisation
Ongoing assistance, user training, and optimisation recommendations.
