Advisory

M&A and Divestiture Services

ISG helps enterprises minimize risk, reduce stranded costs and unlock hidden value across the entire merger and divestiture lifecycle.

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What's at Stake?

Mergers, acquisitions and divestitures are complex – and costly when mishandled.

Common pitfalls include:

Transitional service agreement (TSA) delays and late notices driving unexpected costs
High stranded IT and license costs
Missed or misplaced contracts slowing Day 1 readiness
Poor communication with suppliers and new entities
Insufficient resources to manage execution

ISG helps you sidestep these risks with early vendor engagement, our proven playbook and expert contract lifecycle management.

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Support at Every Stage of the M&A Journey

Whether you’re planning an acquisition, executing a divestiture, or stabilizing operations post-Day 1, ISG supports you at every step.

Our proven methodology:

Assess
Opportunity scans (looking for areas to improve), due diligence (clearly defining what is in scope and the state of the supplier contract landscape ) and financial impact analysis (impact to current costs and planning for the transition costs).
Design
Strategy and target operating model development, detailed definition of service and program planning included.
Integrate/Separate
Contract separation, TSA planning, program management and systems transition.
Transform
License optimization, process redesign and synergy / non-synergy capture.
Operate
Governance, risk mitigation and ongoing optimization.

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Tailored Services for Every Deal Type

Every transaction is different. We tailor our approach to deliver value for mergers, spin-offs, and everything in between.

Merger Integration

Synergy and de-synergy assessments, TSA negotiation, post-merger planning and compliance analysis

Divestiture Support

New contract negotiations, TSA structuring and license use alignment

Spin-Off Execution

Infrastructure planning, contract transition and parent company support

Captive / Sub Rollups

Strategy and commercial impact assessments, rule changes and integration/separation execution

Program Management

Develop & run the transition program, bridge between and manage stakeholders to meet TSA deadlines.

Cost Management

Defining, tracking and reporting on strategic key metrics to ensure TSA costs are transparent and within bounds.

Why Leading Enterprises Choose ISG

When the stakes are highest, global enterprises trust ISG. With more than $475B in sourcing deals advised and experience across thousands of complex integrations and separations, we bring unmatched data, independence and expertise.

Unmatched Data

Largest repository of IT benchmarking data — across software, services, and connectivity

Independent Advice

Vendor-agnostic, no conflicts of interest

Deep Expertise

Specialists in contracts, IT and transformation

Proven Results

Track record with Fortune 100 and Global 2000 leaders