Mr Borja Sainz de Aja > Uría Menéndez > Madrid, Spain > Lawyer Profile

Uría Menéndez
28002 MADRID

Work Department

Litigation, IP and Unfair Competition.


Borja Sainz de Aja joined Uría Menéndez in 1999 and headed its office in Lima from November 2002 until September 2004. He specialises in Intellectual Property, distribution, unfair competition, advertising, data protection law and litigation relating to these areas of law.

He regularly advises engineering and technology multinationals and other companies in sectors such as electronics, microelectronics, software, food, beverages, tobacco, textiles and education on the negotiation, drafting and structure of contracts and transactions. Borja also represents these clients before regulatory bodies and courts in proceedings on the protection of patents, trademarks, industrial designs, copyright, know-how and other intellectual property rights.

Moreover, Borja advises market leaders in the telecommunications, electronics, financial services and food and drinks sectors in litigation and non-litigation matters regarding unfair competition and advertising issues, including passing-off, gaining unfair advantage from the reputation of others, misleading practices, sales below cost, protection of trade secrets, misappropriation of trademarks and getting ups.

His expertise includes advising on commercial law issues, including corporate matters and collaboration contracts. He specialises in drafting distribution, software and internet related contracts. Borja has been involved in the drafting of the corporate aspects and standard conditions of leading Spanish on-line service providers.

Borja has extensive experience on personal data protection and advises multinational and domestic clients from all sectors on the design, regularisation and processing of their databases and information systems.


English; French; Italian.


Madrid Bar Association; Spanish Group of the International Association for the Protection of Intellectual Property; Lex Mundi – contact for Spain; Spanish Association for the Defence of Competition (Unfair Competition Section).


Law Degree, Universidad de Navarra, 1998, summa cum laude.

Lawyer Rankings

Spain > Industry focus: TMT

Uría Menéndez‘s TMT-sector services come under the banner of its digital law area, which draws together experts from a variety of practice areas, including IT, commercial, privacy, IP, M&A, tax, competition, regulatory and labour. Pablo González-Espejo heads the practice and is focused on commercial and company law in the audio-visual, telecommunications, sports and IT sectors. Leticia López-Lapuente‘s ongoing digital and data privacy advice to Repsol, Microsoft and Twitter continues to stand out, while Borja Sainz de Aja specialises in IP, competition and related litigation. At the associate level, Nerea Sanjuan has recently provided support to a number of telecoms and healthcare clients.

Spain > Industry focus: Retail

Uría Menéndez advises a broad range of producers, distributors and retailers in the fashion, consumer goods, toys, food and jewellery sectors. Multi-disciplinary lawyers in the firm’s Barcelona and Madrid offices collaborate to assist clients in M&A and other corporate transactions, as well as litigation and general corporate and commercial law matters. Patricia Vidal advises retail companies on competition and EU law; Borja Sainz de Aja focuses on patents, trade marks, industrial designs and copyright; and Ramiro Rivera handles domestic and cross-border capital markets and finance deals.