LAWYER PROFILE

Pierre-Olivier Mahieu

Europe 2026

Jones Day

Ranked in 1 practice area

Corporate/M&A

Belgium

20 years ranked

About

Provided by Jones Day

Europe

Practice Areas

Pierre-Olivier Mahieu focuses his practice on mergers and acquisitions, private equity, and equity capital market transactions. He advises local and international clients on inbound and outbound transactions and has more than 30 years of experience in Belgian, European, and other cross-border transactions.

Pierre-Olivier has represented clients in various sectors, including the life sciences, retail, aerospace, technology, energy, private equity, and banking and insurance industries.

He recently advised LDz Group (formerly Louis Delhaize, a French-Belgian retailer) in the sale of hypermarket chain Cora to Mitiska REIM; Brussels Airport Company on the indirect transfer of 39% of its shares from Ontario Teachers' Pension Plan to Flemish government agency PMV; the Riverside Company on the sale by its portfolio company, A.forall, of its Retail & Hospital (R&H) business unit to Abacus Medicine; and Aviapartner on the sale of its air cargo activities at Brussels Airport to Worldwide Flight Services and in Liège Airport to SAL Saudi Logistics Services.

Chambers Review

Provided by Chambers

Chambers European Guide

Corporate/M&A - Belgium

Band 3

Individual Editorial

Pierre-Olivier Mahieu has notable experience in advising domestic clients on substantial transactions in the retail, biotechnology and aerospace industries.

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Strengths

Provided by Chambers

Pierre-Olivier Mahieu is an excellent and pragmatic practitioner. He understands the business aspects well and adopts the right tone.
Corporate/M&AChambers European Guide
Pierre-Olivier Mahieu is a very dedicated and good lawyer.
Corporate/M&AChambers European Guide
We almost see him as part of our team.
Corporate/M&AChambers European Guide
Pierre-Olivier Mahieu is a trusted adviser who brings years of experience to the table for the benefit of his clients. He is adept at managing complex transactions in a strategic and measured way.
Corporate/M&AChambers European Guide