Omar Shah represents clients in complex global cartel and anticorruption investigations and civil proceedings for damages for breach of antitrust laws, as well in merger control procedures and on antitrust matters, particularly those involving the intersection of competition law with media/communications regulation. His practice involves representing clients before UK, EU, and other competition authorities, courts, and tribunals and in commercial and regulatory litigation proceedings, including judicial reviews. Chambers UK 2016 describes him as a "charming and effective partner who instantly wins the client's confidence and respect." Omar is admitted to practice in England & Wales.
Omar is the general editor of the book Class Actions—A Global Guide and has co-authored the articles "The New EU Technology Transfer Regime—Out of the Straightjacket and into the Safe Harbour?" and "Disclosure and Negotiation of Licensing Terms Prior to Adoption of Industry Standards: Preventing Another Patent Ambush," both of which appeared in the European Competition Law Review. Omar is a regular speaker at conferences including those organised by the Law Society, IBC and ILFR.