When your organisation is merging, acquiring, or separating, Microsoft 365 isn’t just an IT project, it’s business-critical. We help you move fast, stay secure, and ensure your teams are fully operational from Day 1.
environments managed within a single migration programme
users migrated in a single NHS programme
files moved securely and successfully
A tenant-to-tenant migration is the process of moving your Microsoft 365 environment – including users, emails, files, Teams, and applications, from one tenant to another.
In M&A scenarios, it enables you to:
This isn’t just about moving data, it’s about ensuring business continuity at scale.
Valto manages the full Microsoft 365 tenant migration end-to-end, covering everything from core workloads such as Exchange Online, SharePoint, OneDrive and Microsoft Teams through to more complex elements of the environment.
Beyond standard data migration, we also handle business-critical components including Power Platform solutions, Azure resources and subscriptions, identity configuration, and security and compliance setup, ensuring nothing is left behind or broken during the transition.
Importantly, this isn’t just a technical exercise. We support the business throughout the migration with structured user communications, training, and post-migration optimisation to ensure teams stay productive and your new environment is fully adopted from day one.
At Valto, tenant-to-tenant migration isn’t just about moving data, it’s about enabling your business to operate without disruption during critical events like mergers, acquisitions, and separations.
We take the time to understand your organisation and objectives, then design a migration plan that reduces risk, protects data, and ensures Day 1 readiness. From initial discovery through to migration and optimisation, our approach is structured, transparent, and focused on real business outcomes.
Our structured five-step approach ensures migrations are delivered clearly, securely, and with minimal disruption, while remaining aligned to your organisation’s timelines, risks, and business objectives.
Unlike many providers, we handle the full Microsoft estate, including Power Platform solutions and Azure, not just mailboxes and files. Plus, we can back it up; Valto hold all six Microsoft Solution Partner Designations, demonstrating our end-to-end technical capabilities.
Timelines depend on size and complexity, but we align every migration to your business milestones, whether that’s Day 1 integration or a fixed TSA exit deadline.
We design migrations to minimise or eliminate disruption, using phased delivery and carefully planned cutovers to keep your business running.
Yes – we handle full Microsoft 365 environments, including Teams, SharePoint, Power Platform solutions, and Azure resources.
Every migration is validated through testing and controlled cutovers to ensure data integrity and a smooth transition.
Yes – we’ve delivered multi-tenant programmes spanning 20+ environments, including complex organisational structures.
Yes – we support communication, training, and post-migration adoption to ensure your teams are productive from Day 1.
Speak to a Microsoft migration specialist to plan your tenant-to-tenant migration around your timelines – whether that’s Day 1 integration, a fixed TSA exit, or a complex multi-tenant programme.
UK OfficesChester:
8 Hunters Walk, Canal Street
Chester, CH1 4EB
Southampton:
Royal Mail House, Terminus Terrace
Southampton, SO14 3FD
London:
Kemp House, 152 – 160 City Road
London, EC1V 2NX
US OfficeNorth Carolina:
5540 Centerview Dr Ste 204 PMB 38792 Raleigh, 27606-8012
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