We migrate organisations from Exchange on-premises, Google Workspace, legacy hosted email, and file servers to Microsoft 365 — with zero downtime, full data fidelity, and a fixed-price scope so there are no surprises.
Exchange, SharePoint, Teams and OneDrive — all data, all permissions, zero downtime. Every time.
A Microsoft 365 migration isn't just a technical task — it's a business risk. Organisations that treat it as a simple data move end up with mail flow disruptions, missing data, broken shared mailboxes, confused users, and a project that drags on months past its deadline. We've seen every way a migration can fail. We built our process around preventing all of them.
Inspizer has been delivering Microsoft 365 migrations since 2013. Our principal consultant spent time inside Microsoft's own EMEA escalation team for Exchange Online — the team that handles migrations when things have gone seriously wrong for large organisations. We use that experience to make sure your project never gets to that point.
Every engagement is scoped to your exact environment. We do not use a one-size template — we scope each migration individually.
The most common migration path. We handle hybrid deployments, coexistence, mail flow, public folder migration, and decommissioning across Exchange 2010, 2013, 2016, and 2019.
Gmail to Exchange Online, Google Drive to SharePoint/OneDrive, Google Calendar to Outlook — with user adoption support to help your people land on their feet.
Mergers, acquisitions, rebrands. We use AvePoint Fly SaaS (ACTP certified) to deliver full-fidelity migrations across Exchange, SharePoint, Teams, OneDrive, and Power Platform.
Moving from legacy hosted email or IMAP to Exchange Online. Mail flow remains uninterrupted and historical email arrives complete and properly structured.
On-premises file shares migrated to SharePoint Online and OneDrive with folder structures, permissions, and metadata preserved. We audit your existing structure first — so you don't replicate legacy chaos in the cloud.
Often the most overlooked and most problematic part of an Exchange migration. We've migrated public folder trees of every size, including a large Parliamentary estate to Exchange Online with zero downtime.
Every Inspizer migration follows a structured, tested methodology. No cutting corners, no surprises, no "we'll figure it out on cutover night."
A detailed discovery session to understand your environment — what you have, what needs to move, dependencies, and timeline. This produces a fixed-price scope of work. No open-ended day-rate engagements.
Before a single mailbox moves, we make sure your Microsoft 365 tenant is configured correctly. Licensing, security defaults, authentication policies, Exchange Online settings, and domain configuration — all right before migration begins.
We migrate a representative sample of users or data first — testing the process end-to-end before touching the full population. This catches environment-specific issues early, when they're easy to resolve.
We migrate users or data in planned batches at a pace that suits your organisation. For larger migrations, we use AvePoint Fly SaaS to run migrations in parallel, maximise throughput, and maintain full audit trails throughout.
Mail flow cutover is the most visible moment of any migration. We plan it meticulously — MX record changes, coexistence, client reconfiguration — and are on hand throughout to respond to any issues in real time.
We don't consider a migration complete until we've verified it. Post-migration health checks, data integrity confirmation, remaining issues resolved, and full documentation of the environment as migrated.
Before founding Inspizer, our principal consultant worked in Microsoft's EMEA escalation team for Exchange Online — the team that handles the most complex migration failures globally. We know what goes wrong because we spent years fixing it.
When the House of Commons needed to migrate 10,000 Parliamentary seats from Exchange 2010 to Exchange Online, Mohsin Abbas was brought in to lead it. Parliamentary security accreditation. Mission-critical infrastructure. Delivered without a single outage.
We're certified on AvePoint Fly SaaS — the leading enterprise M365 migration platform — at ACTP level. Full-fidelity migrations across Exchange, SharePoint, Teams, OneDrive, and Power Platform, with complete permissions and metadata preservation.
We quote a fixed price based on a detailed discovery. You know what you're paying before we begin. No open-ended day rates. No scope creep that ends up on your invoice.
"Inspizer has been an outstanding consultancy to work with! From the initial pre-sales meetings to the migration workshops, their professionalism and expertise shone through. The meticulously crafted designs and project plans ensured a seamless journey to the Microsoft cloud for us."
It depends on the size of your organisation, the platform you're migrating from, and the complexity of your data. A small organisation (under 50 users) migrating from a hosted email provider can be completed in two to three weeks. A mid-sized organisation moving from Exchange on-premises typically takes four to eight weeks. Large or complex migrations — including tenant-to-tenant moves or those involving SharePoint and file server content — can take two to four months. We provide a realistic timeline during scoping, not an optimistic estimate designed to win the project.
For the vast majority of migrations, there is no downtime for end users. We use a staged approach where users continue working on their existing platform while their data is being migrated in the background. The final cutover — when mail flow switches to Microsoft 365 — is typically scheduled for a low-activity window and takes minutes, not hours. During that window, mail is queued and delivered once the DNS change propagates, not lost.
Everything migrates. We migrate mailbox content (email, calendar, contacts, tasks, notes), shared mailboxes, distribution lists, and — critically — public folders, which many consultancies treat as an afterthought. We run post-migration validation to confirm data integrity before signing off.
Yes. We handle the full Google Workspace to Microsoft 365 migration — Gmail to Exchange Online, Google Drive to SharePoint and OneDrive, Google Calendar to Outlook, and contacts across. We also assist with the change management side, because switching from Google to Microsoft is a bigger adjustment for users than most IT teams anticipate.
We provide a fixed price based on a detailed discovery and scoping process. We don't believe in open-ended day-rate engagements for migration projects — they misalign incentives and leave clients with unpredictable costs. Our fixed-price model means you know exactly what you're paying before we begin.
No sales pitch. Just an honest conversation about what your Microsoft 365 environment needs and how we can help.