Mr Carlos Osório de Castro > Morais Leitão, Galvão Teles, Soares da Silva & Associados > Lisbon, Portugal > Lawyer Profile

Morais Leitão, Galvão Teles, Soares da Silva & Associados
1070-050 LISBOA
Carlos Osório de Castro photo

Work Department

Corporate and Commercial (Corporate Law, Mergers, Acquisitions and Joint ventures), Capital Markets.


Carlos Osório de Castro is one of the most well-known Portuguese lawyers in the areas of capital markets and M&A, a reputation earned due to his participation in major projects involving both national and international clients.


Qualified (1984). Partner (2006), Morais Leitão, Galvão Teles, Soares da Silva & Associados.Founding Partner, Osório de Castro, Verde Pinho, Vieira Peres, Lobo Xavier & Associados (1989-2005). Former Senior Assistant Professor at the Law Faculty of the Portuguese Catholic University (1982-2002). Member of the Review Committee of the Portuguese Securities Code.


Portuguese, English and French.


Portuguese Bar Association (admitted in 1984).


Law Degree (Law Faculty of the University of Coimbra, 1982). Master’s Degree in Legal Business (Law Faculty of the University of Coimbra).

Lawyer Rankings

Portugal > Capital markets

(Hall of Fame)

Carlos Osório de CastroMorais Leitão, Galvão Teles, Soares da Silva & Associados

The market-leading capital markets practice at Morais Leitão, Galvão Teles, Soares da Silva & Associados is highly sought after for advice on complex debt and equity transactions. The team acts for an impressive client roster, comprising investment banks, listed companies, issuers and offerors of securities admitted to trading. Recent headline engagements include innovative takeover bids, public offers with a significant impact on the Portuguese industrial sector, as well as several issuances and conversions. In addition, the practice took on leading roles on the listing of the first REIT and in the first STS (simple, transparent and standardised) transaction in the country. Tomás Vaz Pinto jointly heads the team with Eduardo Paulino, who is highly regarded in the market for his experience in equity and debt public and private offers in the banking, telecoms, construction and media sectors. Other standout practitioners include Carlos Osório de Castro and Ricardo Andrade Amaro, the latter of whom maintains a broad practice in securities law, capital markets and M&A. Maria Soares do Lago is a promising talent in the team; she is particularly active in debt capital markets, securitisation and derivatives matters.

Portugal > Commercial, corporate and M&A

(Hall of Fame)

Carlos Osório de CastroMorais Leitão, Galvão Teles, Soares da Silva & Associados

Morais Leitão, Galvão Teles, Soares da Silva & Associados has long been at the forefront of Portugal’s M&A market, where it is well versed in high-profile and high-value deals. Over the course of the past 12 months, the team witnessed an uptick in transactions in the energy sector, where it advised some of the biggest players in market-leading deals. The breadth of its practice – covering key sectors such as banking, insurance, telecoms, pharmaceuticals, infrastructure and manufacturing – is matched by its size and geographical presence thanks to Morais Leitão Legal Circle, a network of associations and alliances with leading law firms in Portuguese-speaking countries across Africa. Co-head Tomás Vaz Pinto focuses on the intersection between private equity, M&A and capital markets, while fellow co-leader Ricardo Andrade Amaro brings a wealth of experience in securities and M&A in the energy sector. Eduardo Paulino is an ‘excellent‘ lawyer and a key contact for cross-border M&A and private equity matters. Also of note is the firm’s Team Genesis, a multidisciplinary legal service provided to emerging companies in the technology and life sciences industries; Luís Roquette Geraldes leads on this type of work. Carlos Osório de Castro is also noted.

Portugal > Porto: Leading commercial firms

(Leading individuals)

Carlos Osório de CastroMorais Leitão, Galvão Teles, Soares da Silva & Associados

The Morais Leitão, Galvão Teles, Soares da Silva & Associados Porto office is truly a standalone regional practice. Praised by clients for its wide technical capabilities, the office provides a full-service offering including but not limited to tax, corporate, commercial, capital markets, dispute resolution, labour and public law. Recent notable instructions for the team include advising EDP – Energias de Portugal on its share capital increase. Real estate and M&A partner Bernardo Lobo Xavier is also the managing partner for the Porto office. Paula Ponces Camanho provides expertise in all areas of labour and social security law; António Lobo Xavier is the go-to tax law contact; Carlos Osório de Castro is a capital markets expert; and João Anacoreta Correia coordinates the disputes team.