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Ignacio Borrego

Of Counsel

Energy | ESG and sustainability | Foreign direct investment and national security | Infrastructure | Regulatory and compliance advisory | Telecommunications |

His huge experience and confidence are incredibly valuable

Client quotation, Chambers Europe 2015

Profile details

About Ignacio Borrego

Ignacio specialises in public and administrative law and regulated industries.

Over his professional career, he has gained a lot of experience advising major national and international corporates, financial institutions and public organisations on transactional and project-finance matters, administrative proceedings, public tenders and contentious-administrative procedures.

Ignacio specialises in energy and renewable energy, and regularly advises clients on a diverse range of regulatory matters. He also has broad experience in the environmental, public infrastructure and public procurement sectors.

He speaks Spanish and English. 

Recent work

  • Advising HOCHTIEF on its acquisition (alongside ACS and Atlantia) of toll-road operator Abertis. Read more about the deal in our case study.
  • Advising Nordex on regulatory issues related to the acquisition of Corporación Acciona Windpower from Acciona for €785m.
  • Advising Helios Kliniken on regulatory matters related to its acquisition of Quironsalud.
  • Advising Ontario Teachers' Pension Plan and PSP Investments on regulatory matters related to the acquisition of a portfolio of renewable energy (wind and solar) and water infrastructure assets.
  • Advising Eurus Energy Europe in an international arbitration against Spain under the Energy Charter Treaty.
  • Advising Hispania on the public tender launched by the town council of Madrid for the construction and operation of buildings in a plot of land located in Real Madrid's old Sports City.
  • Advising Cinven/KKR/Providence in the acquisition of Masmovil Ibercom. 
  • Advising Masmovil in its merger with Orange Spain.
  • Advising Ufinet in the renegotiation of its agreements with Enagas regarding the use of Ufinet’s network.



  • Universidad San Pablo CEU, Madrid, Spain (law, majoring in EU law)

Additional responsibilities

  • Professor in postgraduate courses, including an MA course in energy law


  • Public Procurement, editions of 2016 and 2015. Getting The Deal Through (GTDT)