• +34 91 1102100
  • infosumma4@summa4.es

Agustín Lojo Elcid

  • 911 102 100
  • agustin.lojo@summa4.es


Law degree from the University of Santiago de Compostela (1992).

Diploma in Tax, Labor and Accounting Advice from the Centro de Estudios Técnicos y Empresariales de Madrid  (1993).

Post-Degree Master in Business Legal Advice from the Instituto de Empresa (1994).

Student of the Executive Development Program by ESADE (2008).


As a founding partner of SUMMA 4, he conducts all Private Law practice, with special focus on Civil, Commercial and Corporate Law, Real Estate, Contentious Procedures and Family-Owned Business.

From 1995 to 2008 he conducted his professional career at Landwell (PricewaterhouseCoopers), mainly in the departments of Litigation Law, Due Diligence and Private Law with specialization in Family-Owned Business.

Agustín was born in Vigo and speaks Spanish, English and Galician.

Teaching experience and other information

Assistant Professor of the Instituto de Empresa (IE Law School).
Professor of the Family-Owned Business course in the European University of Madrid.
Professor of Masters of Management of Small and Medium Enterprises organized by Atisa.
Speaker at various events organized by the Instituto de Empresa Familiar (IEF), by the Institute for International Research and by the Family-Owned Business network of professorial chairs sponsored by the Instituto de Empresa Familiar.
Speaker at international conferences with the Association of Corporate Counsel (Munich 2015)

Professional entities and associations of which he is a member:
• Bar Association of Madrid since 1995.

Governing Bodies of the Family-Owned BusinessCatalan Association of Family-Owned Business (2007).
• Collaborator in the writing of the book Responsibility of Administrators and Managers (Thomson-Aranzadi, 2003).
• Responsible for the legal part of Mementos Accounting 2004, 2005, 2006, 2007 and 2008 (Francis Lefebvre).