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Driving Enterprise-Wide IT Integration Post-Acquisition

NORDIC ACCOUNTING AND ADVISORY FIRM

As many organizations pursue growth through mergers and acquisitions, the successful integration of IT landscapes, systems, and infrastructure becomes a critical determinant of value realization. Yet, this phase is often underestimated. Poorly executed IT integrations frequently result in escalating costs, operational disruption, frustrated employees, and ultimately lower-than-expected returns on investment.

Differ supported one of our clients throughout the full acquisition journey – from signing to closing and beyond – ensuring a smooth and controlled IT integration. The engagement enabled the successful transition of several hundred employees across multiple offices, consolidating more than 20 disparate IT systems into the acquiring organization, with minimal disruption to ongoing operations.

Our client was in the process of acquiring another business and required comprehensive support to integrate all aspects of IT. This included end-user devices, workplace and office infrastructure, core enterprise platforms, and a range of business-critical delivery systems.


The client needed a structured and transparent approach to plan, oversee, and govern the integration – ensuring that all IT and data-related risks were identified and addressed early, timelines were met, and day-to-day business continuity was maintained throughout the transition.

Differ led the IT integration workstream, designing and executing a structured approach that decomposed the overall transition into multiple, clearly defined sub-projects. This enabled effective governance, risk management, and progress tracking across parallel initiatives such as data migration, system consolidation, and end-user transition.


Through close collaboration with the acquired business, internal IT teams, vendors, system integrators, and key business stakeholders, Differ coordinated planning and execution across all phases of the integration. Detailed cutover planning, clear ownership, and proactive communication ensured that critical milestones were achieved without significant impact on daily operations.


Key success factors included rigorous planning and attention to detail, a good understanding of both organizations’ systems and data landscapes, strong change-management capabilities, and a robust governance structure. As a result, the client achieved a controlled, timely, and value-focused IT integration that supported and enabled the broader strategic objectives of the acquisition.



For more information, contact:

Tove Leonard

Tove.leonard@differ.se

070-558 14 68

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