Post-merger integration

Turn your merger into a lasting success
1 to 2 months after official announcement

What is the "Post-merger / acquisition integration" challenge?

The "Post-merger / acquisition integration" challenge is a strategic program designed to support your organization through the critical post-merger or acquisition integration phase.

This decisive period calls for a methodical approach that goes far beyond the financial and legal aspects. Our holistic approach simultaneously addresses the harmonization of corporate cultures, optimization of operational processes and employeeengagement .

Thanks to a proven methodology combining precise diagnostics, collaborative workshops and personalized support, we create the conditions for a smooth integration that secures the achievement of the strategic objectives of your merger while preserving theengagement your teams.

Our experts will guide you every step of the way, transforming this moment of transformation into an opportunity for collective growth.

Post-merger / acquisition integration

Key figures

Statistics show that post-merger integration is the most decisive phase in the success of a business combination. These figures reveal the crucial importance of a structured approach to maximize synergies and minimize risks during this critical period.
83%
of mergers that fail to achieve their objectives are mainly due to poor cultural and human integration
74%
reduction in turnover of key talent is observed when a structured integration program is put in place from the first month onwards
64%
of anticipated synergies are actually achieved when operational integration follows a proven methodology, compared with only 30% without support
No data was found

Turnkey challenges

Alexandre Moreau

The Fusion Réussie program was instrumental in turning our acquisition into a success. The OuiLive methodology enabled us to avoid the classic pitfalls of integration and rapidly create a positive collective dynamic. As a result, we achieved our synergy targets 6 months ahead of schedule.

I'm committed to a merger that creates sustainable value for all

The #1 gamification app for long-term team engagement.

See our games

OuiLive is a gamification app that helps you engage employees in your internal communications, HR, and CSR initiatives over the long term.

In concrete terms, we transform your messages and objectives into collective experiences in the form of games that are easy to launch, measurable, and available within 24 hours.

Ideal for quickly activating dispersed teams, boosting participation in an internal program, and establishing positive momentum over time.

Training & Knowledge

Learn differently, by playing and remembering.

Performance & Sales

Drive business success and challenges.

CSR & Engagement

Working together for a positive and measurable impact.

Quality of Life at Work & Health

Adopting the right habits for well-being at work.

Onboarding & Culture

Integrate, unite, and pass on the corporate culture.

Cohesion & Team Spirit

Build connections, break down silos to bring people together.

Frequently asked questions

Any questions? Dive into our clear answers and discover how our connected challenges are transforming the daily lives of over 250 companies.

When is the best time to start the post-merger integration program?

Ideally, integration preparations should begin even before the transaction is finalized, in parallel with due diligence. However, our program can be deployed effectively from the official announcement and up to 2-3 months after the merger. This period represents a crucial window of opportunity when teams are particularly receptive to change and new working dynamics begin to crystallize. Our approach adapts to your specific timetable, while preserving its fundamental principles of efficiency.
Our methodology begins with an in-depth cultural diagnosis that precisely maps the values, practices and behaviors of each organization. Rather than imposing a dominant culture, we facilitate the emergence of an "integrated culture" that preserves the best of both worlds. Our "Cultural Bridge" workshops enable teams to identify complementary strengths and co-create a shared cultural vision. This participative approach transforms differences into opportunities for mutual enrichment, rather than sources of friction.
Together with you, we draw up a balanced scorecard covering four essential dimensions: operational performance (realization of synergies), humanengagement (talent retention, satisfaction), cultural integration (adoption of new values) and external perception (customers, partners). Each dimension is measured by specific KPIs and monitored in real time via our digital platform. Regular checkpoints enable us to adjust the approach and celebrate progressive successes, thus creating a positive dynamic.
Uncertainty is the main cause of stress and disengagement during a merger. Our program incorporates a transparent, sequenced communication strategy that reduces this uncertainty. We also deploy collaborative workshops that actively involve teams in building the shared future, giving them a sense of control and ownership. Our "Quick Wins Sessions" enable visible improvements to be identified and implemented rapidly, demonstrating the benefits of the merger in concrete terms and reinforcing confidence in the new organization.

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