Arias SLP

Arias SLP is a Madrid-based law firm, dedicated to international arbitration and litigation.

Set up in 2013, the firm boasts ample expertise and experience in the field of dispute resolution. It offers insightful expert advice and first-class legal representation in all types of international commercial and investor-State disputes.

Since its inception, Arias SLP is recognized as one of the leading dispute resolution firms. The firm represents clients in complex and high value disputes before arbitral tribunals and the Spanish courts. Arias SLP also provides advice on dispute management and avoidance. Many of its lawyers are highly sought-after to act as arbitrators. Their experience within arbitration panels composed of the most recognised arbitrators gives them unique insight into the dispute resolution process.

Arias SLP has handled a broad spectrum of commercial and investment arbitrations as well as arbitration-related litigation. Its partners have acted as counsel and served as arbitrators in hundreds of arbitrations, conducted under the rules of all major arbitral institutions, such as the ICC, ICSID, PCA, LCIA, AAA/ICDR, SCC, CAS, the Swiss Arbitration Centre, as well as in UNCITRAL and ad hoc arbitrations.

Between 2022 and 2024, the firm’s partners have acted as counsel and served as arbitrators in 58 arbitrations, involving 42 jurisdictions, with an amount in dispute totalling USD 11 billion, in various areas such as engineering & construction, infrastructure and energy, corporate/M&A, cross-border transactions or banking & finance.

Arias SLP’s clients include European and international companies, ranging from SMEs to multinationals.

■ Representing a Portuguese investor in an arbitration against an African State in relation to a dispute arising from the seizure of four gas turbines (ICSID, Washington D.C., Spanish/English)

Partners: David Arias, Luis Capiel

■ Representing a Latin American subsidiary of a German multinational in an arbitration against a Latin American state-owned petroleum company in relation to a dispute arising from an agreement for the construction, operation and maintenance of a training and simulation centre for offshore oil production (ICC, Latin American city, law of a Latin American country, Spanish)

Partner: Luis Capiel

■ Representing a Spanish renewable-energy company in an arbitration against a Chinese solar panel manufacturer in relation to a dispute arising from solar panel supply agreements for solar farm projects in Brazil (ICC, Frankfurt/Madrid, Spanish law, English/Spanish)

Partner: Luis Capiel

■ Representing a Singapore-based global energy company in an arbitration against a Spanish multinational energy utility in relation to a dispute arising from a deal on the transfer of an LNG portfolio and the supply of natural gas (CIMA, Madrid, Spanish law, English)

Partners: David Arias, Luis Capiel

■ Representing a Colombian infrastructure concession company in an arbitration against a Spanish construction company in relation to a dispute arising from an EPC contract for the construction of motorways (ICC, Madrid, Colombian law, Spanish)

Partners: David Arias, Luis Capiel, Oliver Cojo

■ Representing a Spanish construction company in an arbitration brought by a Qatari construction company in relation to a dispute arising from two memoranda of understanding and multiple joint venture agreements for the construction of infrastructure projects in Qatar (ICC, Geneva, Swiss law, English)

Partners: David Arias, Luis Capiel

■ Representing a Spanish energy supplier in an arbitration against a photovoltaic developer in relation to a dispute arising from two loan agreements (ICC, Madrid, Spanish Law, English)

Partners: Blas Piñar, Oliver Cojo

■ Arbitration involving various parties in relation to a dispute arising from a highway concession contract in a Latin American State (ICSID, Washington D.C., Spanish).

Co-arbitrator: David Arias

■ Arbitration between investors from Israel and South Africa and an African State in relation to an investor-State dispute (PCA, capital of an African State, English).

Presiding arbitrator: David Arias

■ Arbitration between an Australian company and a Caribbean State in relation to a dispute arising from a contract for the evaluation and exploitation of a dam (ICSID, Washington D.C., English and Spanish).

Presiding arbitrator: David Arias

■ Arbitration between various companies from Europe and America in relation to a dispute arising from an oil supply agreement and other related agreements (LCIA, London, law of a European State, English)

Presiding arbitrator: David Arias

■ Arbitration between a Chinese engineering company and an Italian EPC contractor in relation to a dispute arising from the supply of electric equipment for a solar plant (ICC, Madrid, Spanish law, English)

Co-arbitrator: Luis Capiel

■ Arbitration between a UK company in the aviation and railway industry and a Spanish railway company in relation to a dispute arising from the purchase of rolling stock coaches (ICC, Paris, Spanish law, English)

Co-arbitrator: Luis Capiel

■ Arbitration between a Spanish company and a Portuguese company in relation to a dispute arising from a maintenance agreement (ICC, Madrid, Spanish law, Spanish)

Sole arbitrator: Oliver Cojo