Hadley joined Milberg London’s Competition Litigation practice as an Associate in March 2022 and was promoted to Senior Associate in December 2024. She primarily works with Natasha Pearman on EU and UK competition matters. Hadley has primary responsibility for the day-to-day management of the Sony PlayStation claim.
Before joining Milberg, Hadley worked as an Associate at a leading UK and international law firm in its Dispute Resolution and Litigation team. There she acquired a broad range of commercial litigation experience acting for both claimants and defendants. Hadley has also resolved a number of cases through alternative dispute resolution.
Prior to becoming a lawyer, Hadley worked for several years at one of America’s largest publicly traded real estate investment trusts after briefly working in the television industry.
Hadley has a bachelor’s degree (Magna cum Laude) from Loyola Marymount University (USA), a law degree from University of Surrey, a LPC MSc in Law, Business and Management (Distinction) from the University of Law, and a PG Dip in EU Competition Law from King’s College London. She qualified as a solicitor in England and Wales in 2020.
A previous client described Hadley as: “…an excellent lawyer to work with. She is able to apply both her knowledge of law and experience effectively and balances this with pragmatic approaches to resolve disputes. Hadley is incredibly diligent, relentlessly hard working and it seems almost permanently available to support when timelines are tight. Impossible to fluster, a good listener and interpreter of the nuances of situations. An emotionally intelligent lawyer with, expert knowledge, a strong set of values and a wonderful working manner.” (Jo Franklin, Group Commercial Director, COINS)
Legal 500 Testimonial: “Hadley Zielonka is… highly regarded, bright and incredibly lovely to deal with.
B.A., Magna cum Laude, Loyola Marymount University (USA), 1998 to 2002
LLB Honours in Law from University of Surrey, 2015 to 2017
LPC MSc in Law, Business and Management (Distinction) from University of Law, 2017 to 2018
Admitted onto the roll of solicitors in England and Wales in September 2020
Trainee Solicitor, Shoosmiths LLP, 2018 to 2020
Associate, Shoosmiths LLP, 2020 to 2022
Associate, Milberg London LLP, 2022 to 2024
Senior Associate, Milberg London LLP, 2024 to present
