We get things done. The right way.

Mergers & Acquisitions

Post-Merger Integration

Interim CFO

Welcome to Leu Advisory

Leu Advisory supports companies during pivotal phases—whether growth, transformation or succession. With over 30 years of experience in M&A, post-merger integration and interim management, Leu Advisory accompanies you with strategic foresight, clear execution and a robust network of experts. The aim: sustainable success for your business—precise, dependable, solution-oriented.


Portrait von Rainer Leu - CEO von Leu Advisory Services
Mag. Rainer Leu, Managing Director
Leu Advisory Services GmbH

Rainer Leu – Your Advisor for M&A, PMI & Interim Management

“Whether you’re buying or selling a company, integrating an acquisition or require an interim CFO—I support you with experience, know-how and diplomatic finesse. Reliable, structured and always by your side.

For specialized requirements and more complex projects, I collaborate selectively with trusted experts who enjoy my confidence—and yours. This ensures you receive seamless support from a single source, while benefiting from the combined know-how of a strong network.”


Mag. Rainer Leu

My Services

Mergers & Aquisitions

I guide you through the entire process of buying or selling a company—from strategy development through due diligence to contract negotiation—ensuring a smooth journey and optimal outcomes.

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Post Merger Integration

You’re planning to acquire a company and need support with the integration? A successful integration is essential to the success of any acquisition. With a professional integration process, I ensure that you achieve the strategic goals you are pursuing with your acquisition.

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Interim Management

You see the need to build or restructure the finance department in your company? You need an experienced manager who supports you in implementing the necessary measures, compensates for limited management capacity or ensures that your goals are achieved with expertise and strong leadership?
I support you as an interim manager for a defined period of time – with full commitment, a hands-on approach and the necessary sensitivity to implement the required measures successfully.

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