Andersen
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Combining ‘high technical competence’ with a ’practical’ approach, Andersen is a ‘go-to’ adviser for M&A, transactional structuring, regulatory compliance and corporate governance across infrastructure, energy, telecoms and financial services. Practice head Mariana Abreu, recognised for her ’strategic capacity’ and ‘global vision’, is experienced in M&A, compliance and regulatory matters. Following the integration with Andersen in March 2026, the team now benefits from the expertise of Pedro Raposo and Pedro Sá in corporate matters.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘Andersen distinguishes itself through a combination of high technical competence and a practical, client-oriented approach. The firm combines in-depth legal knowledge in commercial, corporate, and M&A law with a true understanding of the business sector, allowing it to provide advice that is not only legally sound but also commercially useful and strategic.'
- 'The team's proximity, availability, and speed of response make it a reliable partner in complex operations, always ensuring clarity and pragmatism in the solutions presented. The team spirit, attention to detail, and adaptability ensure that the service provided goes far beyond the market standard.’
Key clients
- Regenerate Sustainable Agriculture Fund
- KGAL
Work highlights
Acted for the joint venture formed by ARD Investment & Development and Ibervalles on the acquisition of Hotel Cascais Miragem in Portugal, with a total investment of €205m.


