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Chambers Europe

Carlos Osório de Castro is held in particularly high esteem by clients for being an "outstanding lawyer with profound knowledge and great capacity to address difficult issues."He dedicates his practice to advising on sales, acquisitions and litigation proceedings.

Carlos Osório de Castro dedicates his practice to sales of share capital and public tender offers. He often assists clients in the energy and hospitality industries.

Carlos Osório de Castro stands out for his longstanding experience in the market, with one source stating: "He is a great lawyer and a reference in the market." His expertise covers public offerings and takeover bids.

Carlos Osório de Castro is highly regarded by market sources for his outstanding expertise in corporate and capital markets transactions. A peer highlights his "innovative solutions in the field of corporate law," going on to say: "He has extensive knowledge of different areas of law, and pools knowledge from multiple practice areas when co-ordinating deals."

Carlos Osório de Castro is lauded by clients as a "very reputable and bright lawyer."He is adept at handling public and private M&A in the energy and real estate sectors and offers additional expertise in capital markets.

Carlos Osório de Castro is hailed as a "classic lawyer" by interviewees. He offers support on ECM deals, including IPOs and share capital transactions.

The "very respected" Carlos Osório de Castro regularly represents public companies in IPOs and tender offers. He has particular expertise in securities transactions, including those under Rule 144A. He is especially active within the energy and retail spaces.

Carlos Osório de Castro 's expertise is widely recognised in the market. He is regularly active in sales, public tender bids or joint ventures within the energy and infrastructure sectors. His impressive client base includes both domestic and international companies, which he assists with multi-jurisdictional mandates.

Carlos Osório de Castro commands respect for his impressive expertise in corporate and capital markets transactions, including multi-jurisdictional operations. Commentators single him out as "one of the biggest names in the Porto legal market" and commend his "above average knowledge and vision of the law."

Carlos Osório de Castro receives recognition for his experience in the area. He is instructed by both national and international clients, and sources describe him as a "very bright, knowledgeable lawyer."
Carlos Osório de Castro's practice includes advice on M&A and joint ventures. He is widely recognised in the market as an “excellent lawyer.” Sources additionally note his “strong reputation in devising creative solutions, problem-solving skills and intelligence.”
Interviewees agree that Carlos Osório de Castro"is a standout figure in the market" and further describe him as a "very clever lawyer." A long-time expert in capital markets and M&A transactions, he is a prominent and trusted practitioner who represents major national and international clients. Of late, he led the team advising Gestifute Group on the negotiation of sale and purchase and investment/shareholder agreements with Fosun International.
Star individual Carlos Osório de Castro is recognised as "one of the best capital markets lawyers in Portugal," noted for his "experience and knowledge." He assists domestic and international clients, active in the area of capital markets and M&A.
Carlos Osório de Castro is held in high regard as "very pragmatic, with a lot of experience and knowledge in corporate law and M&A." His practice covers various sectors, including sports.
Star individual Carlos Osório de Castro is widely admired by clients and peers alike for his extensive experience in the corporate arena. He offers expertise in capital markets and M&A, and is praised as "remarkable," "a very bright lawyer" and "one of the best in Portugal."

Carlos Osório de Castro

Star Individuals Capital Markets
2016

Carlos Osório de Castro

Band 1 Corporate/M&A
2016

Carlos Osório de Castro

Star Individuals General Business Law - Porto
2016
Carlos Osório de Castro is highly praised for his capital markets practice. Clients say: "He is very knowledgeable of the various structures that can serve the client's needs," and that he "finds solutions in tight deadlines."
Carlos Osório de Castro is considered by peers as "one of the greatest Portuguese lawyers." He has notable experience in commercial and corporate matters and remains one of the most active members of the team.
Carlos Osório de Castro earns countrywide praise for his expertise in capital markets. He acts on a significant number of high-profile corporate operations, and Porto peers confirm: "He is a great lawyer - very intelligent and appreciated by clients."
Peers unanimously agree that Carlos Osório de Castro is a reference in the Portuguese capital markets arena.
Clients enjoy working with Carlos Osório de Castro, with one stating: "He has a very deep understanding of business transactions and always gives accurate and crystal-clear advice."
Carlos Osório de Castro has decades of experience in restructuring, commercial law and capital markets.
Carlos Osório de Castro brings his corporate law expertise to TMT deals. Peers praise him as "a brilliant lawyer, technically very strong."
Peers recognise Carlos Osório de Castro as an authority in the capital markets arena. "He is extremely clever; he is an excellent lawyer who clients adore," enthused one source.
Clients hail Carlos Osório de Castro as "one of the best lawyers in Portugal." His expertise extends to M&A, joint ventures and capital markets.
"One of the most respected lawyers in Portugal," Carlos Osório de Castro specialises in company law, M&A, joint ventures and capital markets.
Corporate law and capital markets expert Carlos Osório de Castro is unanimously considered a star individual: "He is one of the best lawyers in the country: extremely bright, flexible and results-oriented," say sources.
Carlos Osório de Castro has a strong track record in insolvency, and is well respected by peers.
Carlos Osório de Castro as an excellent lawyer with strong market knowledge. He specialises in the corporate and capital markets aspects of TMT deals.
Carlos Osório de Castro works out of the Porto office and is considered to be a heavyweight in capital markets.
Carlos Osório de Castro is described by sources as "a fantastic lawyer with ample international knowledge and legal vision."
Carlos Osório de Castro is a prestigious and experienced lawyer who is recognised by his peers for his role in formulating the Portuguese Insolvency Code.
Renowned capital markets lawyer Carlos Osório de Castro has in-depth experience in the TMT field and works closely with Sonaecom.
Star lawyer Carlos Osório de Castro maintains his top-tier position in the market, particularly for capital markets, corporate/M&A and restructuring and insolvency cases.
Carlos Osório de Castro's "total availability and creative solutions" are a hit with clients. His recent workload includes advising Cinveste on the sale of its 3.93% stake in Cimpor.
Standout lawyer Carlos Osório de Castro has a stellar reputation for his specialism in the field and prestigious academic background.
Carlos Osório de Castro is an expert in this area and was involved in the drafting of the recent Portuguese Insolvency Code.
Capital markets specialist and multi-talented lawyer Carlos Osório de Castro stands out for his transactional expertise and sector experience.
Carlos Osório de Castro is the star of the group and his acclaimed areas of expertise include capital markets, corporate and M&A.
Carlos Osório de Castro mainly focuses on corporate/M&A, capital markets and restructuring/insolvency, and clients praise "his ability to find well-supported, swift, outside-the-box solutions.” For some clients he is simply “the best lawyer in the country.”
An undisputed market leader, Carlos Osório de Castro is consistently praised by peers and clients for his deep market and legal knowledge. He is described as a “fantastic lawyer – one of the best in capital markets,” and is also highly regarded in corporate and TMT.
Carlos Osório de Castro is a member of the Portuguese Securities Code's review committee, and highly regarded in corporate/M&A and capital markets.
“One of the best lawyers in Portugal” according to an interviewee, Porto-based Carlos Osório de Castro is primarily a renowned corporate practitioner, but is also noted for his telecoms-related activity.
The “truly amazing” Carlos Osório de Castro impresses interviewees with his extraordinary corporate expertise
It houses some of the country’s top capital markets lawyers, namely Carlos Osório de Castro and João Soares da Silva. Osório de Castro is highlighted as an excellent lawyer with a wealth of experience in the field.
Talented lawyer Carlos Osório de Castro is lauded as “technically faultless and an enormous asset at the negotiation table – a perfect combination for M&A work.”
Carlos Osório de Castro is noted for his capabilities in corporate advisory work, and has great experience of advising telecoms clients on corporate matters.
Carlos Osório de Castro received enthusiastic praise from his peers for being “one of the brightest minds in the country.” He also impresses with his “tough but fair approach and genuine efforts to understand his clients’ business.”
Clients identify Carlos Osório de Castro as “a genius” in relation to corporate and capital markets work: “He is bright and has a great understanding of clients’ needs.”
Capital markets partner Carlos Osório de Castro is regarded as “the most outstanding name in Porto’s legal scene.” Clients comment: “In addition to its amazing technical skills, he have excellent client service and will readily face difficult challenges. He have totally gained our confidence.”
Although probably best known for his corporate and capital markets practice, Carlos Osório de Castro also enjoys a fine telecoms reputation, mainly due to his successful relationship with chief client Sonae. Commentators note: “He’s an outstandingly prolific lawyer, who knows absolutely everything his client needs to know.”
Hugely respected in the capital markets field, the “superb” Carlos Osório de Castro is “one of the most creative minds in the Portuguese legal market,” observers concur. Clients admire his “well-prepared, quiet and calm approach,” pointing out that “however complex the issue, he always manages to give an imaginative and fully justified answer.”
“Outstanding and aggressive corporate lawyer” Carlos Osório de Castro receives enthusiastic praise from his clients: “He is always two steps ahead of everyone else - he has written or influenced law codes himself so he is the one who knows what can or cannot be done and understands loopholes - fantastic for designing operations.” Peers add that: “Osório de Castro’s negotiation skills are exceptional: he is probably one of the brightest lawyers in the area.”
Corporate lawyer Carlos Osório de Castro represents Sonaecom in its takeover bid for Portugal Telecom. Rivals consistently praised his work in the telecoms arena: “You can be sure that whatever field Castro gets into, his performance will be outstanding.” Another added: "Despite his age he already deals with high-profile transactions and by now enjoys a great reputation." Sources further highlighted his ability to lead “a very strong TMT team.”

Chambers Global

Carlos Osório de Castro dedicates his practice to sales of share capital and public tender offers. He often assists clients in the energy and hospitality industries.

Carlos Osório de Castro stands out for his longstanding experience in the market, with one source stating: "He is a great lawyer and a reference in the market." His expertise covers public offerings and takeover bids.

Carlos Osório de Castro

Band 1 Corporate/M&A
2020

Carlos Osório de Castro

Band 1 Capital Markets
2020

Carlos Osório de Castro

Band 1 Corporate/M&A
2019

Carlos Osório de Castro

Band 1 Capital Markets
2019

Carlos Osório de Castro

Band 1 Corporate/M&A
2018

Carlos Osório de Castro

Star Individuals Capital Markets
2017

Carlos Osório de Castro

Band 1 Corporate/M&A
2017

Carlos Osório de Castro

Band 1 Capital Markets
2017
Outstanding lawyer Carlos Osório de Castro is a household name in the market, noted for his "experience and popularity" among sources. He handles both domestic and cross-border operations.
Carlos Osório de Castro enjoys a solid reputation among market commentators, with one remarking: "He is extraordinary." He has particular expertise in the distribution and sports sectors.
Clients say: "He is very knowledgeable of the various structures that can serve the client's needs," and that he "finds solutions in tight deadlines."
Carlos Osório de Castro is considered by peers as "one of the greatest Portuguese lawyers." He has notable experience in commercial and corporate matters, and remains one of the most active members of the team.
Peers unanimously agree that Carlos Osório de Castro is a reference in the Portuguese capital markets arena.
Clients enjoy working with Carlos Osório de Castro, with one stating: "He has a very deep understanding of business transactions and always gives accurate and crystal-clear advice."
Clients hail Carlos Osório de Castro as "one of the best lawyers in Portugal." His expertise extends to M&A, joint ventures, and capital markets.
"One of the most respected lawyers in Portugal," Carlos Osório de Castro specialises in company law, M&A, joint ventures and capital markets. "One of the most respected lawyers in Portugal," Carlos Osório de Castro specialises in company law, M&A, joint ventures and capital markets.
Carlos Osório de Castro works out of the Porto office and is considered to be a heavyweight in capital markets.
Carlos Osório de Castro also stands as a leading figure in the sector thanks to his ability to rapidly "analyse complex legal matters and provide creative solutions.”
Sources praise Carlos Osório de Castro for his ability to balance his profound legal knowledge with a deep understanding of market realities and his clients' underlying objectives.
Carlos Osório de Castro also stands as a leading figure in the sector thanks to his ability to rapidly "analyse complex legal matters and provide creative solutions.”
An undisputed market leader, Carlos Osório de Castro is consistently praised by peers and clients for his deep market and legal knowledge. He is described as a “fantastic lawyer – one of the best in capital markets.” He is also highly regarded in corporate and TMT.
The "truly amazing" Carlos Osório de Castro impresses interviewees with his extraordinary corporate expertise.
Osório de Castro is highlighted as an excellent lawyer with a wealth of experience in the field.
Talented lawyer Carlos Osório de Castro is lauded as “technically faultless and an enormous asset at the negotiation table – a perfect combination for M&A work.”
Carlos Osório de Castro received enthusiastic praise from peers, with one declaring: “He is one of the brightest minds in the country.”
Clients identify Carlos Osório de Castro as “a genius in corporate and capital markets work." Others add: “He is bright and has a great understanding of clients’ needs.”
According to observers, the firm has benefited hugely from the arrival of Carlos Osório de Castro as part of the recent merger. “An extremely creative lawyer,” he is hugely respected in the capital markets field and boasts further experience in financing and lending.
“Outstanding and aggressive corporate lawyer” Carlos Osório de Castro receives enthusiastic praise from his clients: “He is always two steps ahead of everyone else - he has written or influenced law codes himself so he is the one who knows what can or cannot be done and understands loopholes - fantastic for designing operations.” Peers add that “Osório de Castro’s negotiation skills are exceptional: he is probably one of the brightest lawyers in the area.”

Carlos Osório de Castro

Band 2 Banking and Finance
2006

Carlos Osório de Castro

Band 2 Banking and Finance
2005

Carlos Osório de Castro

Band 2 Corporate / M&A
2005

Legal 500

Carlos Osório de Castro, António Lobo Xavier and Gonçalo Fleming are all extremely rigorous, oriented to solve the problem in a practical way and always very close and available to the customer.

Carlos Osório de Castro

Leading Individuals Commercial, Corporate and M&A
2021

Carlos Osório de Castro

Leading Individuals Capital Markets
2021

Carlos Osório de Castro

Leading Individuals Oporto: Leading Commercial Firms
2020

Carlos Osório de Castro

Leading Individuals Commercial, Corporate and M&A
2020

Carlos Osório de Castro

Leading Individuals Capital Markets
2020

Carlos Osório de Castro

Leading Lawyer Commercial, Corporate and M&A
2019

Carlos Osório de Castro

Leading Lawyer Capital Markets
2019

Carlos Osório de Castro

Leading Lawyer Oporto: Leading Commercial Firms
2019

Carlos Osório de Castro

Leading Lawyer Capital Markets
2018

Carlos Osório de Castro

Leading Lawyer Commercial, Corporate and M&A
2018

Carlos Osório de Castro

Leading Lawyer Oporto: Leading Commercial Firms
2018

Carlos Osório de Castro

Leading Lawyer Capital Markets
2017

Carlos Osório de Castro

Leading Lawyer Commercial, Corporate and M&A
2017

Carlos Osório de Castro

Leading Lawyer Oporto: Leading Commercial Firms
2017

Carlos Osório de Castro

Leading Lawyer Capital Markets
2016

Carlos Osório de Castro

Leading Lawyer Corporate and M&A
2016

Carlos Osório de Castro

Leading Lawyer Oporto - Leading commercial firms
2016

Carlos Osório de Castro

Leading Lawyer Capital Markets
2015

Carlos Osório de Castro

Leading Lawyer Corporate and M&A
2015

Carlos Osório de Castro

Leading Lawyer Oporto - Leading commercial firms
2015

IFLR 1000

Carlos Osório de Castro

Highly Regarded Capital Markets: Equity, M&A
2021

Carlos Osório de Castro

Highly Regarded Capital Markets: Equity, M&A
2020

Carlos Osório de Castro

Highly Regarded Capital Markets: Equity, M&A
2019

Carlos Osório de Castro

Highly Regarded Capital Markets: Equity
2018

Carlos Osório de Castro

Leading Lawyer Mergers and Acquisitions
2017

Carlos Osório de Castro

Leading Lawyer Mergers and Acquisitions
2017

Carlos Osório de Castro

Leading Lawyer Capital Markets
2016

Carlos Osório de Castro

Leading Lawyer Mergers and Acquisitions
2016

Carlos Osório de Castro

Leading Lawyer Banking
2015

Carlos Osório de Castro

Leading Lawyer Capital Markets
2015

Carlos Osório de Castro

Leading Lawyer Mergers and Acquisitions
2015

Carlos Osório de Castro

Leading Lawyer Capital Markets
2014

Carlos Osório de Castro

Leading Lawyer Mergers and Acquisitions
2014

Carlos Osório de Castro

Leading Lawyer Banking and Capital Markets
2013

Carlos Osório de Castro

Leading Lawyer Project Finance
2013

Carlos Osório de Castro

Leading Lawyer Mergers and Acquisitions
2013

Carlos Osório de Castro

Leading Lawyer Banking and Capital Markets
2012

Carlos Osório de Castro

Leading Lawyer Mergers and Acquisitions
2012

Carlos Osório de Castro

Leading Lawyer Banking and Capital Markets
2011

Carlos Osório de Castro

Leading Lawyer Mergers and Acquisitions
2011

Carlos Osório de Castro

Leading Lawyer Capital Markets
2010

Carlos Osório de Castro

Leading Lawyer Mergers and Acquisitions
2010

Carlos Osório de Castro

Leading Lawyer Capital Markets
2009

Carlos Osório de Castro

Leading Lawyer Mergers and Acquisitions
2009

Carlos Osório de Castro

Leading Lawyer Capital Markets
2008

Carlos Osório de Castro

Leading Lawyer Mergers and Acquisitions
2008

Carlos Osório de Castro

Leading Lawyer Mergers and Acquisitions
2007

Best Lawyers

Carlos Osório de Castro

Capital Markets; Corporate Governance & Compliance Practice; Corporate; Insolvency and Reorganization; Media; Mergers and Aquisitions; Sports Law; Telecommunications
2021

Carlos Osório de Castro

Capital Markets; Corporate; Media; Mergers and Aquisitions; Sports Law; Technology; Telecommunications
2018

Carlos Osório de Castro

Capital Markets; Corporate; Media; Mergers and Aquisitions; Technology; Telecommunications
2017

Carlos Osório de Castro

Capital Markets; Corporate; Media; Mergers and Acquisitions; Technology; Telecommunications
2016

Carlos Osório de Castro

Capital Markets
2015

Carlos Osório de Castro

Corporate
2015

Carlos Osório de Castro

Mergers and Acquisitions
2015

Carlos Osório de Castro

Technology
2015

Carlos Osório de Castro

Telecommunications
2015

Carlos Osório de Castro

Media Law
2015

Carlos Osório de Castro

Capital Markets
2014

Carlos Osório de Castro

Corporate
2014

Carlos Osório de Castro

Mergers and Acquisitions
2014

Carlos Osório de Castro

Technology
2014

Carlos Osório de Castro

Telecommunications
2014

Carlos Osório de Castro

Capital Markets
2013

Carlos Osório de Castro

Corporate
2013

Carlos Osório de Castro

Mergers and Acquisitions
2013

Carlos Osório de Castro

Technology
2013

Carlos Osório de Castro

Telecommunications
2013

Carlos Osório de Castro

Capital Markets
2012

Carlos Osório de Castro

Corporate
2012

Carlos Osório de Castro

Mergers and Acquisitions
2012

Carlos Osório de Castro

Technology
2012

Carlos Osório de Castro

Telecommunications
2012

Carlos Osório de Castro

Capital Markets
2010

Carlos Osório de Castro

Corporate
2010

Carlos Osório de Castro

Mergers and Acquisitions
2010
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