Post-Acquisition Consolidation Pack
After the deal, one clean, secure, right-sized Microsoft estate - not two overlapping tenants, two bills, and two security postures.
The problem
An acquisition leaves you with two of everything: two Microsoft 365 tenants, two Azure estates, two licensing agreements, and two security postures that were never designed to meet. Users span both, data sits in both, and the weaker of the two postures is now your exposure. Left alone it becomes permanent - duplicated cost, inconsistent controls, and an audit or cyber-insurance answer you cannot give cleanly. The fix is a deliberate consolidation: one tenant, one right-sized licensing position, and one security baseline across the combined estate.
What's Included
- Tenant-to-tenant migration of identities, mailboxes, files, and Teams across the combined estate
- Microsoft 365 and Microsoft Azure licensing reconciled and right-sized - duplicate and unused licences removed
- A single security baseline applied across both estates, not the weaker of the two inherited
- Consolidation of Azure subscriptions, landing zones, and platform guardrails, defined as Terraform
- Identity and Conditional Access unified, with privileged access reviewed across the merged tenant
- A staged decommission plan for the retired tenant, subscriptions, and duplicated services
Outcomes
- One Microsoft estate after the deal - a single tenant, baseline, and bill
- Duplicated licensing and platform cost removed, with a figure attached
- A consistent security posture across the combined business, evidenced for audit and insurance
- The retired estate cleanly decommissioned, not left running as shadow risk
Who It's For
- Finance, insurance, and PE-backed teams consolidating Microsoft estates after an acquisition or merger
- IT and security leads who have inherited a second tenant and need one clean posture
- Organisations whose post-deal Microsoft cost and security have drifted since the transaction
How to Start
Most engagements begin with the free audit and go no further until you have seen where you stand.
Consolidation Assessment
from £4,500 / $5,800
A fixed-price assessment of the two estates - what overlaps, what to merge, what it saves, and the safe order to do it in.
- Both Microsoft 365 tenants and Azure estates mapped for overlap, cost, and security gaps
- A sequenced consolidation plan with dependencies, risks, and a saving attached to each action
- The target design for the combined tenant, baseline, and landing zone
Where the estates are large enough: we find more in annual savings than the assessment costs, or it is free.
Consolidation & Cutover
from £20,000 / $25,600
The fixed-scope engagement that acts on the plan - migrating, right-sizing, and unifying the security baseline, then decommissioning the retired estate.
- Tenant-to-tenant migration of identities, mailboxes, files, and Teams
- Licensing right-sized and a single security baseline applied across the combined estate
- The retired tenant, subscriptions, and duplicated services decommissioned on an agreed date
Continuous Evidence
from £3,500 / $4,500
An ongoing retainer that keeps the consolidated estate aligned and its audit and insurance evidence current as the combined business settles.
- A fixed amount of expert time each month on the highest-priority security work
- Evidence kept current and submittable, with drift caught before an auditor sees it
- A forward plan of security initiatives, reprioritised every month
Month one: a posture baseline and a first evidence pack.
Engagement Model
A fixed-scope engagement priced from the assessment: what to merge, in what order, and what it saves. Productised and outcome-based - never day rates. Where the estates are large enough, the assessment carries a simple promise: we identify more in annual savings than the consolidation costs, or the assessment is free.
Pricing: from £20,000 / $25,600 - larger engagements are tailored to scope.
We govern the AI we deliver with
This work is delivered AI-accelerated, so AI tooling reads configuration and log data from your estate along the way. It is fair to ask how that is governed - and the answer is published: which providers we use and on what commercial terms, what client data never reaches a model, that a named architect signs off every output, and that AI tooling holds no standing write access to client systems.
Read our AI policyRelated
The Microsoft Bill Audit
Not mid-acquisition, just overpaying? The fixed-price audit that finds more in savings than it costs, or it's free.
Microsoft Azure Security & Hardening
The platform hardening and landing-zone guardrails the consolidated estate is rebuilt on.
The Cyber-Insurance Renewal Pack
A renewal or audit landing soon after the deal? Get the combined estate evidenced and guaranteed before the date.
Get started
Find out where you stand, free
Most engagements start with a no-cost posture audit against the baselines that matter to you. If a fixed-fee roadmap is the right next step, we'll say so - and if it isn't, we'll say that too.