Pillar 01
Microsoft 365 migration consultant.
Done right the first time.
Tenant-to-tenant for M&A and divestitures. On-prem Exchange to Exchange Online. File shares to SharePoint and OneDrive. Senior-led from discovery through hypercare.
Exchange Server 2016 and 2019 reached end-of-support October 14, 2025. ESU Period 2 runs to the end of October 2026.
What we deliver
Five workloads, one delivery model.
Each is a fixed-fee, senior-engineer-led engagement with a runbook you keep. Mix-and-match across a single tenant or sequence them across a multi-year roadmap.
01
Tenant-to-Tenant Migration
M&A integration, divestiture, rebrand. Mailboxes, OneDrive, SharePoint, Teams chats and channels, Power Platform.
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02
Exchange Hybrid Decommission
Retire on-prem Exchange after the move to Exchange Online. Decom servers cleanly, recover IPs, end the dependency.
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03
SharePoint & OneDrive Migration
File-share modernization. Permission rationalization. Information architecture before migration, not after.
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04
Microsoft 365 Modernization
For tenants stuck on legacy configurations. Conditional Access, Defender, Intune baselines, Purview governance.
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05
Microsoft Project Consulting
Project Server 2016 and 2019 ended support July 14, 2026. Project Web App inventory, permission mapping, farm decommission.
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What's different
Why companies pick us for this work.
Senior engineers only
No junior consultants on your tenant. The person who scopes the project is the person who runs the cutover.
Fixed-fee scope
Defined in writing before kickoff. No surprise change orders, no clock-watching, no hourly creep.
Migration runbooks you keep
Yours, in your knowledge base. Not locked behind our ticketing system.
Vendor-neutral by design
We don't resell migration tooling and we don't take vendor commissions. We recommend what fits, not what pays us.
How it runs
Four phases, and three checks before the first wave.
The same model runs every workload above. The durations are the typical band for a 200–1,000 user move; larger or more complex tenants extend cutover, not the method.
Discovery · 1–3 weeks
Inventory mailboxes, sites, Teams, apps, holds and licensing in source and destination. The output is a written scope and a fixed fee.
Pilot · 1–2 weeks
One representative slice moved end to end, proving the runbook and the tooling on a small surface before anything else moves.
Cutover · 2–6 weeks
Production waves, sized from the throughput the pilot actually measured.
Hypercare · 2 weeks
The engineer who ran the cutover stays on it while users settle and the source is prepared for decommission.
- A hold census. Mailboxes on hold do not migrate cleanly and get their own wave — why held mailboxes need a separate plan.
- Where Exchange still runs on-premises. Exchange Server 2016 and 2019 are out of support, and ESU Period 2 runs to the end of October 2026 — what the ESU bridge does and doesn’t cover.
- Who can see what in SharePoint and OneDrive. A migration carries existing access forward unchanged, so oversharing is fixed at the source — file-share migration.
Further reading
Read the deep-dives.
- → Exchange Server 2019 EOL: your real migration deadline — the four real migration paths and the cost of staying past Oct 14, 2025.
- → Tenant-to-tenant M365 migration playbook — for M&A, divestiture, and rebrand scenarios.
- → Copilot readiness: the 12,000-permission problem — the SharePoint and OneDrive prep work that has to land before Copilot.
FAQ
Common questions about Microsoft 365 migrations.
Is this the same as an Office 365 migration?
Yes — same work, older product name. Microsoft renamed Office 365 to Microsoft 365 in April 2020, so an Office 365 migration consultant and a Microsoft 365 migration consultant are describing the same engagement. If your licensing paperwork, renewal quotes, or internal documentation still use the older name, nothing about the scope below changes. We use the current name throughout for consistency with Microsoft's own documentation.
What does a Microsoft 365 migration consultant do?
A Microsoft 365 migration consultant moves users, mailboxes, files, and sites from a legacy environment into Microsoft 365 — and where there's an existing M365 tenant, modernizes it. Scope across a typical engagement: tenant-to-tenant migrations for M&A and divestitures, on-premises Exchange to Exchange Online, file shares to SharePoint and OneDrive, on-prem Exchange decommission, and tenant modernization (Conditional Access, Intune baselines, Defender XDR, Purview governance). Senior-led delivery, fixed-fee scope, vendor-neutral tooling. Most mid-market moves of 200-1,000 users run 6-12 weeks end to end.
How long does a Microsoft 365 migration take?
Mid-market moves of 200–1,000 users typically run 6–12 weeks: 1–3 weeks discovery, 1–2 weeks pilot, 2–6 weeks cutover, 2 weeks hypercare. Tenant-to-tenant moves and Exchange hybrid decommissions sit at the longer end of that band; net-new SharePoint rollouts can finish faster. Larger or more complex tenants extend the cutover phase, not the methodology.
What has to happen before a Microsoft 365 migration starts?
Three checks, run before the first production wave rather than during it. A hold census, because mailboxes on hold do not migrate cleanly and belong in their own wave. The Exchange version and support date for anything still on-premises — Exchange Server 2016 and 2019 reached end of support October 14, 2025, and ESU Period 2 runs to the end of October 2026. And a review of who can see what in SharePoint and OneDrive, because a migration carries existing access forward unchanged. All three are part of discovery, which is why discovery is the phase that sets the fixed fee.
What does a Microsoft 365 migration cost?
Fixed-fee scope, defined in writing before kickoff. Pricing tracks user count, workload mix (mailboxes only vs. mailboxes + SharePoint + Teams), tenant complexity (single-domain vs. multi-domain, hybrid vs. cloud-only), and whether legacy on-prem Exchange decommission is in scope. We come back with scope and a fixed-fee range — no hourly creep, no surprise change orders.
Which migration tool do you use?
Tooling is picked per workload, not per vendor relationship. ShareGate, BitTitan MigrationWiz, Quest On Demand, CodeTwo, and native Microsoft 365 Migration Manager are all viable depending on the source, the destination, and what's actually being moved. We don't resell any of them, so the recommendation reflects fit — not margin.
Do you do tenant-to-tenant moves for M&A and divestitures?
Yes. M&A integration (folding an acquired tenant into the parent's), divestiture (carving a business unit out into its own tenant), and rebrand or domain consolidation are the three most common drivers. Mailboxes, OneDrive, SharePoint sites, Teams chats and channels, and Power Platform apps all migrate. The same custom domain follows the users to the destination tenant when the legal structure allows.
Can on-prem Exchange be decommissioned after a hybrid migration?
Yes — and it should be. Microsoft now supports Entra ID-only recipient management for hybrid customers, so the 'one server for management' workaround from 2018 is no longer required. Exchange Server 2016 and 2019 reached end of support October 14, 2025; ESU Period 2 runs to the end of October 2026. After that, no security updates are available. Decommissioning the last on-prem Exchange server is the right end state.
Scope your Microsoft 365 work.
Tell us the workload, the seat count, and the deadline. We'll come back with scope and a fixed-fee range.