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 PRA – Raposo, Sá Miranda e Associados 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.’
  • ‘Andersen is the go-to law firm for my company for all matters related to commercial and corporate law. They combine extensive knowledge of Portuguese commercial law with excellent expertise in the energy sector, making them an ideal partner for M&A transactions, PPAs, other contracts, etc. This is complemented by a strong work ethic and dedication to clients.’
  • ‘They are very meticulous and efficient in preparing the required documentation, which was quite complex. We were also impressed by their organised approach to document preparation and their friendly manner in explaining each document and answering our questions.’
  • ‘Of particular note is the work of Luísa Carrilho da Graça. She is a highly qualified individual with unwavering dedication to her clients.’
  • ‘Bernardo Silveira is an exemplary professional with exceptional customer care who never misses an opportunity to address urgent matters.’

Key clients

  • Regenerate Sustainable Agriculture Fund
  • KGAL
  • Dos Grados Capital
  • BayWa
  • NH Hotels
  • C2 CAPITAL
  • ARD

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.
Advising Regenerate Sustainable Agriculture Fund in connection with its investment into the growth of a blueberry enterprise in Portugal.
Advised C2 Capital Partners on its entry as a strategic partner in Lyzer’s latest investment round, totalling €10m.
Practice head

Mariana Abreu

Other key lawyers

Luísa Carrilho da Graça; Bernardo Silveira; Felipe Ros; Constança Lino; Afonso Vaz Tomé; Pedro Raposo; Pedro Sá; Leila Grácio