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LEK Mergers & Acquisitions Cases: Complete Guide

Official: LEK Careers ↗

Updated June 2026·12 min read

Frequency

very common

Math Intensity

high

Structure

high

Creativity

low

Mergers & Acquisitions at LEK: What to Expect

Mergers & Acquisitions cases are very common at LEK. As an candidate-led firm, LEK expects you to drive the case independently, demonstrating ownership of your analysis and recommendations. Structure is critical for these cases.

What Mergers & Acquisitions Cases Test

Strategic rationale assessment, financial analysis, synergy identification, risk evaluation, and integration planning.

Common Scenarios

  • •Should we acquire this target company?
  • •What is a fair valuation for the target?
  • •What synergies can we capture?
  • •Should we divest this business unit?
  • •How should we structure the deal?

How LEK Approaches Mergers & Acquisitions Cases

M&A and due diligence is LEK's core strength. Expect detailed commercial due diligence cases.

Common Twists at LEK

  • •Commercial due diligence
  • •Market assessment
  • •Add-on analysis
  • •Exit preparation

What LEK Evaluates

Due diligence depth
Market understanding
Risk identification
Investment recommendation

Example Mergers & Acquisitions Case Prompts

Practice with these mergers & acquisitions case prompts similar to what you might encounter at LEK:

Example 1

A private equity firm is conducting due diligence on a specialty chemicals company. What are the key commercial questions?

Example 2

Evaluate whether our PE client should pursue this add-on acquisition for their platform company.

Example 3

Our client, a large pharmaceutical company, is considering acquiring a biotech startup specializing in gene therapy. Should they proceed?

Example 4

A private equity firm is evaluating the acquisition of a regional hospital chain. What due diligence questions should they focus on?

Example 5

Our client is a major bank considering acquiring a fintech payment platform. Evaluate the strategic rationale.

Key Frameworks for Mergers & Acquisitions Cases

These frameworks are particularly effective for mergers & acquisitions cases at LEK:

1Strategic rationale (why this deal?)
2Target assessment (standalone value)
3Synergy analysis (revenue and cost)
4Valuation approaches (DCF, multiples)
5Integration planning and risks

Practice Tips for LEK

LEK M&A cases require strong strategic thinking combined with financial rigor. Focus on articulating the strategic rationale before diving into synergy numbers. Structure your due diligence comprehensively and build a clear investment thesis. Practice valuation concepts and synergy quantification.

Drill this case type with a voice interviewer

Run a LEK-style case live and get graded feedback on exactly this skill.

  • A live case run by a voice interviewer — speak, don't type
  • A scored five-skill report: structure, math, judgment, synthesis, communication
  • Your weakest skill diagnosed, with a plan sized in sessions, not vague advice

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Frequently Asked Questions

How common are Mergers & Acquisitions cases at LEK?
Mergers & Acquisitions cases are very common at LEK. M&A and due diligence is LEK's core strength. Prepare for these cases as part of your overall interview readiness.
What frameworks work best for LEK Mergers & Acquisitions cases?
For LEK Mergers & Acquisitions cases, the most effective frameworks include: Strategic rationale (why this deal?), Target assessment (standalone value), Synergy analysis (revenue and cost). Customize your framework to the specific case rather than applying a generic structure.
How is LEK's approach to Mergers & Acquisitions cases different from other firms?
LEK Mergers & Acquisitions cases are distinctive because M&A and due diligence is LEK's core strength. Expect detailed commercial due diligence cases.. Common twists include: Commercial due diligence and Market assessment. Focus on Due diligence depth to stand out.
What math should I expect in LEK Mergers & Acquisitions cases?
Mergers & Acquisitions cases have high math intensity. At LEK, expect significant quantitative analysis including market sizing calculations, financial projections, and impact quantification.
How should I allocate time during a LEK Mergers & Acquisitions case?
For a typical 45-60 minutes LEK interview, allocate roughly: 2-3 minutes for initial structuring, 15-20 minutes for analysis and calculations, and 3-5 minutes for synthesis and recommendation. Manage your time proactively to ensure you reach a clear recommendation.

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