Hagai Doron is widely regarded as one of Israel’s leading antitrust and competition lawyers and is considered the country’s top antitrust litigator. He heads the Competition & Antitrust Practice at S. Horowitz, where he advises and represents leading multinational corporations and major domestic clients on the full spectrum of Israeli competition law matters. Hagai is particularly renowned for merger control strategy, complex M&A transactions, and competition due diligence, with extensive experience guiding high-value cross-border deals through Israeli regulatory review. He is also highly sought after in contentious matters, including cartel investigations, abuse of dominance claims, class actions, and proceedings before the Israeli Competition Authority and courts. He is consistently ranked Band 1 by Chambers and Partners and listed in the Hall of Fame by The Legal 500, reflecting his longstanding reputation as a market leader in Israeli competition law.

Hagai Doron is widely regarded as one of Israel’s leading antitrust and competition lawyers and is considered the country’s top antitrust litigator. He heads the Competition & Antitrust Practice at S. Horowitz, where he advises and represents leading multinational corporations and major domestic clients on the full spectrum of Israeli competition law matters. Hagai is particularly renowned for merger control strategy, complex M&A transactions, and competition due diligence, with extensive experience guiding high-value cross-border deals through Israeli regulatory review. He is also highly soug...

Publications

Merger Control Law Guide

Co-author of the Israel chapter in the Merger Control Law Guide , published 13 July 2026 , alongside Stav Ben Hamo and Tal Muravsky .