Arbitration
and dispute resolution

Arbitration
and dispute resolution

Arbitration
and dispute resolution

Arbitration
and dispute resolution

Who we are

Arias SLP is a law firm founded in 2013.

Our practice focuses on arbitration, litigation, and providing strategic advice in complex international matters.

We are independent and free of conflicts of interest. Our team adapts to our clients’ needs and works on each matter with utmost dedication.

(Legal 500 2024)

“Arias SLP is a reference for high-stakes arbitration proceedings across Europe, America and Africa”.

(Who's Who Legal 2023)

“David Arias enjoys a fantastic reputation in the market as one of the most experienced arbitrators worldwide”.

(Chambers 2026)

"Luis is excellent, logical and has an analytical mind. I highly recommend him as an arbitrator and lawyer".

(Global Arbitration Review 2024)

"The Arias SLP team are ‘real experts in arbitration’ and ‘a kind of their own".

(Chambers 2025)

"David is in a league of his own. He understands the client's needs and he has great problem-solving capabilities".

(Chambers 2025)

"Oliver is one of the most promising young partners. He shows the ability to address matters of great complexity and sophistication and he is very creative when it comes to providing solutions".

(Chambers 2024)

“The team boasts a standout arbitration practice with a solid reputation for energy and construction disputes”.

(Chambers 2024)

"David Arias is one of the best, both as counsel and arbitrator".

(Who's Who Legal 2021)

"Luis Capiel is a ‘brilliant mind’ with ‘unparalleled expertise in preparing written submissions’. He receives nominations for his ‘technical knowledge, business-oriented approach and extreme efficiency".

(Chambers 2025)

"They are excellent and rigorous".

(Chambers 2027)

“David Arias is an exceptional arbitrator who is among the very best in the world. He is exceptionally well prepared, efficient and enormously intelligent”.

(Chambers 2025)

"Oliver Cojo is efficient, and responds quickly and assertively".

Experience

200+

arbitrations

75

countries

Construction

Representing a Colombian infrastructure concession company in an arbitration against a Spanish construction company arising from a contract for the construction of a highway (ICC, Madrid, Colombian law, Spanish).

Energy

Presiding arbitrator in an arbitration between parties from Latin America and Oceania arising from a contract for the assessment and operation of a dam (ICSID, Washington DC, Dominican law, English and Spanish).

Construction

Representing a Spanish construction company in an arbitration against a Qatari construction company arising from multiple agreements for the construction of various infrastructure projects in Qatar (ICC, Geneva, Swiss law, English).

Energy

Representing the Spanish subsidiary of a global energy company headquartered in Asia in an arbitration against a Spanish energy multinational arising from an agreement on the transfer of an LNG portfolio and the supply of natural gas (CIMA, Madrid, Spanish law, English).

Corporate

Co-arbitrator in an arbitration between parties from America and Europe arising from a share purchase agreement (CAM-CCBC, Rio de Janeiro, Brazilian law, English).

Investment

Representing a Luxembourg company in an investment arbitration against a European state arising from the reduction of subsidies to the renewable energy sector (SCC, The Hague, Energy Charter Treaty, English).

Construction

Representing the subsidiary of a German multinational in an arbitration against an Ibero-American oil company arising from a contract for the construction, operation and maintenance of a training and simulation center for offshore oil production (ICC, Mexico City, Mexican law, Spanish).

Energy

Presiding arbitrator in a dispute between parties from Africa, America and Europe arising from certain supply and services agreements related to two liquefied natural gas plants in an African country (ICDR, New York City, New York law, English)

Supply

Representing a Spanish company in an arbitration against a Chinese company arising from contracts for the supply of modules for solar parks in Brazil (ICC, Frankfurt/Madrid, Spanish law, English/Spanish).

Construction

Representing an Italian engineering and construction group in an arbitration against parties from Europe and Latin America arising from a contract for the construction of a power plant in Chile (ICC, Santiago de Chile, Chilean law, Spanish).

Corporate

Co-arbitrator of a five-member tribunal in an arbitration between parties from Africa, America and Europe arising from a share purchase agreement (ICC, Paris, Angolan law, English).

Investment

Representing a Portuguese investor in an investment arbitration against Angola arising from the seizure of four gas turbines (ICSID, Washington DC, BIT, English).

Contact

  • +34 918 138 630
  • Gurtubay 4, 3D 28001 Madrid
  • admin@ariasslp.com
  • arias-slp
  • +34 918 138 630
  • Gurtubay 4, 3D 28001 Madrid
  • admin@ariasslp.com
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Arbitration
and dispute resolution

Arbitration
and dispute resolution

Arbitration
and dispute resolution

Arbitration
and dispute resolution

Who we are

Arias SLP is a law firm founded in 2013.

Our practice focuses on arbitration, litigation, and providing strategic advice in complex international matters.

We are independent and free of conflicts of interest. Our team adapts to our clients’ needs and works on each matter with utmost dedication.

(Legal 500 2024)

“Arias SLP is a reference for high-stakes arbitration proceedings across Europe, America and Africa”.

(Who's Who Legal 2023)

“David Arias enjoys a fantastic reputation in the market as one of the most experienced arbitrators worldwide”.

(Chambers 2026)

"Luis is excellent, logical and has an analytical mind. I highly recommend him as an arbitrator and lawyer".

(Global Arbitration Review 2024)

"The Arias SLP team are ‘real experts in arbitration’ and ‘a kind of their own".

(Chambers 2025)

"David is in a league of his own. He understands the client's needs and he has great problem-solving capabilities".

(Chambers 2025)

"Oliver is one of the most promising young partners. He shows the ability to address matters of great complexity and sophistication and he is very creative when it comes to providing solutions".

(Chambers 2024)

“The team boasts a standout arbitration practice with a solid reputation for energy and construction disputes”.

(Chambers 2024)

"David Arias is one of the best, both as counsel and arbitrator".

(Who's Who Legal 2021)

"Luis Capiel is a ‘brilliant mind’ with ‘unparalleled expertise in preparing written submissions’. He receives nominations for his ‘technical knowledge, business-oriented approach and extreme efficiency".

(Chambers 2025)

"They are excellent and rigorous".

(Chambers 2027)

“David Arias is an exceptional arbitrator who is among the very best in the world. He is exceptionally well prepared, efficient and enormously intelligent”.

(Chambers 2025)

"Oliver Cojo is efficient, and responds quickly and assertively".

Experience

200+

arbitrations

75

countries

Construction

Representing a Colombian infrastructure concession company in an arbitration against a Spanish construction company arising from a contract for the construction of a highway (ICC, Madrid, Colombian law, Spanish).

Energy

Presiding arbitrator in an arbitration between parties from Latin America and Oceania arising from a contract for the assessment and operation of a dam (ICSID, Washington DC, Dominican law, English and Spanish).

Construction

Representing a Spanish construction company in an arbitration against a Qatari construction company arising from multiple agreements for the construction of various infrastructure projects in Qatar (ICC, Geneva, Swiss law, English).

Energy

Representing the Spanish subsidiary of a global energy company headquartered in Asia in an arbitration against a Spanish energy multinational arising from an agreement on the transfer of an LNG portfolio and the supply of natural gas (CIMA, Madrid, Spanish law, English).

Corporate

Co-arbitrator in an arbitration between parties from America and Europe arising from a share purchase agreement (CAM-CCBC, Rio de Janeiro, Brazilian law, English).

Investment

Representing a Luxembourg company in an investment arbitration against a European state arising from the reduction of subsidies to the renewable energy sector (SCC, The Hague, Energy Charter Treaty, English).

Construction

Representing the subsidiary of a German multinational in an arbitration against an Ibero-American oil company arising from a contract for the construction, operation and maintenance of a training and simulation center for offshore oil production (ICC, Mexico City, Mexican law, Spanish).

Energy

Presiding arbitrator in a dispute between parties from Africa, America and Europe arising from certain supply and services agreements related to two liquefied natural gas plants in an African country (ICDR, New York City, New York law, English)

Supply

Representing a Spanish company in an arbitration against a Chinese company arising from contracts for the supply of modules for solar parks in Brazil (ICC, Frankfurt/Madrid, Spanish law, English/Spanish).

Construction

Representing an Italian engineering and construction group in an arbitration against parties from Europe and Latin America arising from a contract for the construction of a power plant in Chile (ICC, Santiago de Chile, Chilean law, Spanish).

Corporate

Co-arbitrator of a five-member tribunal in an arbitration between parties from Africa, America and Europe arising from a share purchase agreement (ICC, Paris, Angolan law, English).

Investment

Representing a Portuguese investor in an investment arbitration against Angola arising from the seizure of four gas turbines (ICSID, Washington DC, BIT, English).

Contact

  • +34 918 138 630
  • Gurtubay 4, 3D 28001 Madrid
  • admin@ariasslp.com
  • arias-slp