We deliver end-to-end tenant consolidation, identity unification, and platform alignment – so your people can collaborate from Day 1 without disruption, data loss, or security gaps.
M&A technology integration is not a standard migration — it demands commercial awareness, security rigour, and a structured methodology that keeps pace with deal timelines.
We work alongside your leadership, legal, and IT teams to plan and execute every phase of tenant consolidation, from pre-deal due diligence through to post-merger optimisation.
Services
Pre-deal and early-stage assessment of the target organisation’s Microsoft environment.
Tenant architecture, licensing position, security posture, compliance status, and technical debt – mapped against your own estate to identify integration risks, quick wins, and cost implications before contracts complete.
Full-scope Microsoft 365 tenant consolidation. Exchange Online mailbox migration, OneDrive and SharePoint content migration, Teams channels, chats, and meeting data.
Calendar continuity, distribution list and shared mailbox alignment, and public folder migration where required. Coexistence configurations to maintain seamless mail flow and free/busy lookup throughout the transition window.
Entra ID (Azure AD) tenant merge and restructuring. User and group object consolidation, conditional access policy harmonisation, SSO and MFA alignment, and hybrid identity architecture where on- premises Active Directory is in play.
Domain consolidation, UPN standardisation, and guest access cleanup to create a single, governed identity platform.
Azure subscription transfers, resource group reorganisation, and workload migration between tenants.
Network integration including VNet peering, DNS consolidation, and firewall rule alignment.
Management plane unification across Azure Arc, Azure Policy, and monitoring tooling to bring the combined estate under a single operational model.
Harmonising security baselines across both organisations. Defender for Endpoint, Defender for Office 365, Sentinel SIEM consolidation, and data loss prevention policy alignment.
Bringing the acquired entity up to your security standard – or establishing a new unified baseline – with full audit trail and compliance documentation throughout.
Post -merger licensing is where organisations either save or waste significant budget.
We audit both estates, identify duplicate or underutilised licensing, consolidate agreements, and right – size your Microsoft position. EA, CSP, and NCE alignment to ensure you are commercially optimised from day one under a unified agreement structure.
Intune policy consolidation, device compliance alignment, and application deployment standardisation across the combined workforce.
Autopilot profile harmonisation, configuration baseline unification, and conditional access integration so that every device – regardless of its origin – meets your security and management requirements.
The reverse of consolidation – cleanly separating a business unit into its own standalone Microsoft tenant.
Carve-out of mailboxes, data, applications, identities, and licensing into a net-new environment with minimal disruption to either party.
TSA (Transitional Services Agreement) support to maintain interoperability during the separation period.
Deal completion day is not the finish line – it’s the starting gun. We plan Day 1 readiness so acquired users can access email, Teams, files, and applications immediately.
Branded communications, onboarding guides, IT support handover, and a dedicated hypercare period to catch issues early and keep productivity high.
Why choose us for mergers and acquisitions
We recognize that M&A integration faces commercial pressures and legal constraints. Our approach focuses on deal timelines, confidentiality, and the necessity to show progress to boards and investors.
Tenant-to-tenant migration requires expertise in Microsoft 365, Entra ID, Azure, Intune, and security. We cover the entire Microsoft ecosystem, ensuring nothing is overlooked in the consolidation plan.
From pre-deal due diligence to post-merger optimization, or even tenant migration, we adapt to your needs. Whether you require advisory, delivery, or a mix, we align with your position in the deal cycle.
Our engineers thrive under the time pressure and uncertainty of M&A programmes. We’ve successfully handled tenant consolidation and carve-out projects for UK mid-market and enterprise organizations.
Let’s discuss how we can help transform your business
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Catalyst House, 720 Centennial Ave, Elstree, Hertfordshire,
WD6 3SY, United Kingdom
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