Advisory Services

Principal-level advisory for Microsoft 365 transformation

We guide IT leadership through platform consolidations and transformations, from setting direction through to steering delivery. Each engagement is led personally at principal level.

Pillar 01

Microsoft 365 Tenant-to-Tenant & M&A Transformation

Strategic leadership for consolidations, spin-offs, carve-outs and multi-tenant domain reorganisations across Exchange, SharePoint, OneDrive and Teams.

Leadership outcomeA consolidation that protects productivity, data integrity and deal value.

  • Complex scenario strategy: migration roadmaps shaped around the transaction, the business calendar and the risk appetite
  • Cross-boundary coexistence: identity, mail, calendar availability and collaboration strategy for extended cutover periods
  • Tooling strategy and vendor neutrality: an objective choice between native Microsoft cross-tenant capability and enterprise third-party suites
  • Cutover governance: stage gates, rollback positions and decision points owned by leadership

Pillar 02

Enterprise Identity Mesh & Multi-Tenant Governance

Target-state identity architecture for merged, multi-entity and federated organisations.

Leadership outcomeA unified, governed identity estate that supports the organisation's structure, now and as it changes.

  • Identity mesh architecture: cross-tenant synchronisation topologies and B2B collaboration boundary frameworks
  • Zero Trust identity boundaries: modern authentication, privileged identity governance and context-aware access strategy
  • Cross-entity business flow: security boundaries designed to protect, not obstruct, how the group works together
  • Technical debt elimination: using the migration window to retire legacy configuration and shadow IT

Pillar 03

Enterprise Cloud Governance & Reference Architecture

The standards, specifications and oversight that keep internal engineering and external partners aligned to the target state.

Leadership outcomeEnterprise standards that hold across every team and partner involved in delivery.

  • Target-state reference frameworks: high-level architectural specifications, landing zones and High-Level Designs
  • Vendor and delivery steering: principal architect oversight of third-party implementation partners
  • Regulatory compliance and data protection: retention, eDiscovery and data residency requirements translated into cloud-native policy
  • Architecture assurance: independent review at key investment and go-live decisions

How we engage

Assess. Define. Steer.

Assess

An independent view of the source and target estates, their risks and technical debt, and the business constraints on the programme.

Define

Target-state frameworks, coexistence strategy, reference architecture and a governed migration roadmap with explicit decision points.

Steer

Principal architect oversight of internal teams and delivery partners through cutover and into steady state.

Engagement models

Flexible to the mandate

Programme principal architect

Accountable architectural leadership for a consolidation, divestiture or modernisation programme, from strategy to steady state.

Strategy & target-state definition

A focused engagement to set direction, frame the options and define the governance model before delivery is procured.

Independent assurance

Objective review of partner proposals, designs and programme health, giving steering committees the evidence they need.

Set the direction before the migration begins.

Discuss your programme in confidence, and we will outline how we would approach it.

Arrange a confidential briefing