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Ana Isabel Vieira

She/herPartner
About

Ana Isabel Vieira has more than 10 years’ experience in M&A practice and has worked on a broad range of M&A and private equity investments, including domestic and cross-border transactions.

Her experience also includes corporate governance, corporate finance, namely financing/ restructuring deals and agreements and the regulatory aspects of the financial and insurance markets. Her clients include companies in diversified sectors such as H&L, retail, technology, medical devices and insurance.

Bar admissionsAdvogado admitted with the Ordem dos Advogados (Portuguese Bar Association)

EXPERIENCE

  • Advising Nani Holdings S.à. r.l., an affiliate of Lone Star Funds on the acquisition (EUR 4.9bn in 2017) and sale (EUR 6.7bn in 2025) of the Novo Banco, S.A., one of the main Portuguese commercial banks, to BPCE, a leading European banking institution, marking the culmination of a multi-year transformation process.
  • Assisting clients in several venture capital and private equity deals.
  • Assisting international clients in large-scale acquisition transactions in diversified areas such as travel and tourism; commercial banks; and insurance companies.
  • Assisting clients with financial regulatory matters and liaison with the supervising authorities in Portugal and Europe.
  • Providing assistance to national and international in Anti-Money Laundering/Combating the Financing of Terrorism (AML/CFT) matters, such as insights in the national transposition of relevant European Directives, drafting of internal policies and mandatory submissions to Portuguese authorities.
Languages
  • English
  • Spanish
Education
  • Lisbon University, School of Law, Post-Graduation in Corporate Governance, 2016
  • Lisbon University, School of Law, Post-Graduation in Corporate Finance, 2015
  • Lisbon University, School of Law, Degree in Law, 2011
  • Lisbon University, School of Social and Human Sciences, Master in Medieval Archaeology, 2007
  • Lisbon University, School of Social and Human Sciences, Degree in Archaeology, 2002

Publications

  • Paper on "Conflict of interests and venture capital", published on Revista de Direito Civil, Ano II - Número 4, 2017
  • Paper on "Collective Investment Undertakings under corporate form", published on corporate law magazine Revista de Direito das Sociedades, 2016

Prior Experience

  • 2026 – present, Partner at DLA Piper ABBC
  • 2017 – 2026, Senior Associate, DLA Piper ABBC
  • 2014 – 2017, Associate, DLA Piper ABBC (previously ABBC)
  • 2011 – 2014, Trainee Lawyer, Lisbon-based law firm
  • 2002 – 2009, Archaeologist, Urban and infrastructure public undertakings in Portuguese territory

Memberships And Affiliations

  • Trainer for corporate officials in IFE - International Faculty for Executives on carrier liability and negotiation and execution of international contracts, 2015

Connect

Phone

(Work, Lisbon)