
Stephen Kinsella Joins APCO as Senior Advisor in London Strengthening APCO’s Global Competition and M&A Practice
June 2, 2026
APCO is delighted to announce that Stephen Kinsella has joined the firm as a senior advisor in APCO’s Competition and M&A team based in London. Kinsella will work closely with APCO’s Head of Europe Competition and M&A, Robert McLeod, to further enhance the firm’s ability to provide strategic advice on complex competition and regulatory matters.
Kinsella brings over three decades of experience in EU competition law, having advised clients across the technology, pharmaceutical, media and sports sectors. Before joining APCO, he was a partner and head of the European Antitrust/Competition group at Sidley and previously served as managing partner of Herbert Smith’s Brussels office. His expertise and leadership have been recognised by numerous industry accolades, including multiple “Competition Team of the Year” awards.
“Stephen’s extensive experience and deep understanding of competition law will be as tremendous asset to our clients,” McLeod said. “His ability to navigate complex regulatory challenges aligns perfectly with APCO’s mission to deliver exceptional strategic counsel. We are thrilled to have him join our dynamic team.”
Kinsella’s appointment reflects APCO’s continued investment in its Competition and M&A practice, which has been a cornerstone of the firm’s European offering for over 30 years. The team, based in Brussels and supported by experts across Europe, provides clients with comprehensive advice on navigating regulatory challenges, merger reviews and antitrust investigations.
“I am excited to join APCO, a firm that stands out for its strategic insight, global reach and multidisciplinary approach,” Kinsella said. “APCO’s Competition and M&A team in Europe, under Robert’s leadership, has built an impressive reputation for helping clients tackle the most challenging regulatory issues. I look forward to contributing to the team’s success and supporting clients in achieving their goals in an increasingly complex regulatory environment.”
In 2002, Kinsella was awarded an OBE by Her Majesty the Queen for services to British commercial interests in Belgium and in particular for his contributions as president of the British Chamber of Commerce in Belgium and president of the Brussels Shakespeare Society.
APCO’s Competition and M&A practice is uniquely positioned to provide clients with a blend of legal, policy and strategic communications expertise. This integrated approach ensures that clients receive tailored, holistic advice to address their specific needs.
Stephen’s addition to the team underscores APCO’s commitment to attracting top talent to strengthen its advisory capabilities and deliver exceptional value to clients.
For more information about APCO’s Competition and M&A practice, visit here.