Caiado Guerreiro > Lisbon, Portugal > Firm Profile

Caiado Guerreiro
RUA CASTILHO, Nº 39, 15º
1250-068 LISBON

Portugal > Energy and natural resources Tier 3

Caiado Guerreiro offers assistance in the development of energy projects for the generation, transportation and transmission of electricity and oil and gas. Led by João Caiado Guerreiro and Joana Gomes dos Santos, the team is sought after to handle regulatory matters, negotiations with governmental bodies, and energy and oil and gas contracts.

Practice head(s):

João Caiado Guerreiro; Joana Gomes dos Santos

Key clients


Piedade Group

Technoedif Engenharia, SA

CPF – Companhia de Ferros de Portugal, SA

Windward Investimentos, Lda

Terra Mater

Portugal > Intellectual property Tier 3

Caiado Guerreiro‘s IP department advises on domestic and cross-border matters and is highly experienced in non-contentious and transactional work, especially trade mark and patent registration. The team also covers a range of contentious matters, including counterfeiting disputes, administrative proceedings before the trade mark offices and copyright issues. Ricardo Costa Macedo manages the practice and is especially sought after to handle patent litigation in the pharmaceuticals sector. He works alongside IP litigator Sandra Jesus.

Practice head(s):

Ricardo Costa Macedo

Other key lawyers:


‘Caiado Guerreiro & Associados stands out for the excellent quality of its service and fees charged. All members of the team are respectful and professional. A reliable and qualified team with a vast and well-specialised network.’

‘The partner who assisted us was Ricardo Costa Macedo, who should be highlighted by his main qualities: accuracy in the work provided, commitment to the client’s requests, clarity in explanations, availability, promptness, initiative.’

‘Caiado Guerreiro has a fine team of lawyers in Portugal. They are smart, have excellent work ethics and it is a delight to work with them.’

‘Sandra Jesus and Ricardo Costa Macedo are recommended.’

‘Caiado Guerreiro has a monitoring service to check for possible conflicting trade marks, which is very good.’

‘Ricardo Costa Macedo is passionate about his IP work and always attentive to our needs as clients. Specific details and broad issues are all dealt with with great ease and practicality.’

‘Strong team. Very knowledgeable on the subject of IP. They are good at explaining the IP protection process and scope in clear and comprehensive fashion.’

‘Ricardo Costa Macedo: open, attentive, diligent and straightforward.’

Key clients



Orion Corporation

Cyan Trading Ltd

Olympus Corporation

Gold Generation Mr


Certisign Certificadora Digital Ltda



Roox – Business solutions, SA

Forfar Education Ltd

Latinpotential Lda.

Portalex Aluminio SA

Jupiter Dressage

Semel Ltd

Work highlights

  • Represented Ferring, a biopharmaceuticals and diagnostic testing company, in arbitration proceedings against generic manufacturers.
  • Acted for Cyan Trading in proceedings in Portugal against the Portuguese supplier of certain dental equipment that was regarded as counterfeit.
  • Advised Latinpotential on the protection of its IP rights in connection to a new brand of fashion clothes.

Portugal > Commercial, corporate and M&A Tier 4

The corporate and M&A team at Caiado Guerreiro is broad in scope, showcasing strength in M&A transactions on the buy and sell side, joint ventures, and day-to-day corporate law issues. With a strong following of domestic and international companies in the telecoms, energy, media and construction sectors, the team also offers assistance in regulatory and compliance matters. João Caiado Guerreiro and Ricardo Rodrigues Lopes, the latter of whom advises on corporate restructurings and business transactions, jointly coordinate the group.

Practice head(s):

João Caiado Guerreiro; Ricardo Rodrigues Lopes

Key clients


Tendam Group


Eni as e Luce

Poke House

MGA New Park S, L.

Fábulas Celestiais Unipessoal

CDK Global Portugal

Portugal > Dispute resolution Tier 4

Offering ‘outside-the-box and strategic solutions’, Caiado Guerreiro attracts a roster of domestic and international companies as well as private clients. The group frequently handles civil and commercial disputes and is skilled in out-of-court settlements. The department is jointly led by João Caiado Guerreiro, Sandra Ferreira Dias, who has significant experience advising on contentious matters involving family law, criminal cases and insolvency proceedings, and Sandra Jesus, whose practice covers IP, inheritance, commercial and employment disputes.

Practice head(s):

João Caiado Guerreiro; Sandra Ferreira Dias; Sandra Jesus


‘Outside-the-box and strategic solutions.’

‘Excellent team, with great relationship. Promptness and appropriate responses.’

‘Sandra Jesus is very attentive and knowledgeable.’

‘Availability and technical knowledge.’

‘The team is very quick at responding to requests and provides creative solutions. Very professional. Top performance.’

‘Cátia Pereira Baptista is always prepared and provides new ways to resolve unique cases. She dedicates a lot of time to our matters. We know that with her our cases are in safe hands. Easy to contact and excellent service. We are very happy as a client.’

‘Great availability. French language capabilities.’ 

Key clients

Natura House

Ferring International Center SA

Chantuque Limited

Banque Raiffeisen SC

Mulberry (Sintra) Inc

Transational Cannabis Ltd

Cyan Trading, Ltd


April Portugal SA

Augus Partner Unipessoal, Lda

Genbank- SA

My Money Bank



Lola Normajean

Sunny resorts

Eninter Espanha

Eninter Portugal

Work highlights

  • Represented Lola Normajean in a judicial proceeding against Intermarché regarding a breach of an advertising and communication contract.
  • Assisted a family with a complex financial dispute related to investment and asset management solutions against Swiss Life Group and Crédit Agricole Indosuez Wealth Management.
  • Acted for Cyan Trading in judicial proceedings before the Portuguese courts against a supplier of dental equipment that was regarded as counterfeit.

Portugal > Tax Tier 4

Caiado Guerreiro fields an experienced tax team, which is well positioned to provide tax consultancy and litigation services across a wide spectrum of sectors. Medium-sized and small enterprises, charities, real estate investment funds and high-net-worth individuals regularly turn to the team, which is ‘highly skilled in local as well as international matters‘. VAT, customs and indirect taxes are among the team’s core specialisms. These are key areas of focus for co-head Tiago Caiado Guerreiro, who further demonstrates expertise in tax inspections, litigation, and regulatory matters. He jointly leads the department with Ana Castro Gonçalves, who stands out for her experience of real estate investments, personal and corporate income tax, and Tânia Pinheiro, who also oversees the German desk and is a solid performer in real estate and M&A deals.

Practice head(s):

Tiago Caiado Guerreiro; Ana Castro Gonçalves; Tânia Pinheiro

Other key lawyers:

Anthony Meira


‘Their people are highly skilled in local as well as international matters. Plus they are very accessible and available.’

Key clients

Grupo MOK

Autodoc AG

Future Prime

Ellen Van Deventer


Patris Investimentos SGPS



Vilas Mediterrâneo

Simon Lorenz

Portugal > Employment Tier 5

Caiado Guerreiro‘s employment and labour law department is often engaged in transactional work, TUPE proceedings, collective dismissals and restructurings. Under the leadership of Ricardo Rodrigues Lopes, the group offers assistance across a wide range of day-to-day employment matters, including remote work policies, wage structures, benefit plans and labour litigation. Rodrigues Lopes is particularly active in the litigation space, where he presents clients at both administrative and judicial levels.

Practice head(s):

Ricardo Rodrigues Lopes

Key clients

United Airlines



Viessmann Refrigeration Systems Oy





Work highlights

  • Advised Supermetrics on remote work agreements and related handbooks.
  • Assisted Clausematch in immigration and visa matters as well as new employment agreements.
  • Advised Olympus on a merger and related TUPE proceedings, involving more than 200 employees.

About Caiado Guerreiro: Caiado Guerreiro is a multi-jurisdictional law firm that provides legal services in all areas of law, being highly recognised by the quality of its services. The firm possesses vast experience in providing legal services and legal consulting at both national and international level.

Mission and values: Caiado Guerreiro is focused in providing services with the highest professional standards, matching technical expertise with a more practical, commercial approach. The team’s perspective is conceived to provide a service that fulfills the needs of each client with a personalised accompaniment.

The clients: Among Caiado Guerreiro’s clients are included both commercial and industrial companies as well as services companies, coming from all fields of activity, such as banks and other financial institutions, insurance companies, industrial companies, public entities and other organisations, as well as private clients.

Practice areas: Caiado Guerreiro provides legal services in all areas of law, being composed of a highly dynamic team with great qualities which focuses on providing a personalised service with great technical quality to its clients. Caiado Guerreiro’s lawyers stand out for their legal knowledge and expertise regarding the field of activities in which our clients work, assuring the best advice possible to our clients.

Corporate and Dispute Resolution João Caiado
Tax Tiago Caiado
Life Sciences, IP and Insurance Law Ricardo Costa
Commercial, Labour and TMT Ricardo Rodrigues
Tax and Public Law Ana Castro Gonç
Dispute Resolution and Civil Law Sandra Ferreira
Dispute Resolution and Civil Law Sandra
Insurance, Banking and Corporate Joana Gomes dos
Number of lawyers : 101
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