Deirdre Carroll is a partner in the Brussels office of Wilson Sonsini Goodrich & Rosati, where her practice focuses on global mergers, agency investigations, and compliance counselling, including on ESG matters. Deirdre regularly represents clients before the European Commission and the UK’s Competition & Markets Authority (CMA) and has extensive experience coordinating global merger filings and regulatory investigations. She also works closely with Wilson Sonsini’s data protection and privacy team to provide clients with integrated, strategic advice on data-related antitrust counselling and digital platform regulation, including the EU’s Digital Markets Act.
She has experience across a wide range of sectors, including tech, advertising (AdTech), financial services, life sciences, aviation, basic industries, and mining.
Deirdre maintains an active pro bono practice. She is a recipient of the firm's John Wilson Award, which is presented annually to attorneys who have demonstrated a significant commitment to the firm's pro bono clients.
Prior to joining the firm in 2015, she was an intern at the European Commission's DG Competition in the Antitrust—Media unit.
Deirdre is a native English speaker, and she is fluent in Irish and French.
Deirdre Carroll is a partner in the Brussels office of Wilson Sonsini Goodrich & Rosati, where her practice focuses on global mergers, agency investigations, and compliance counselling, including on ESG matters. Deirdre regularly represents clients before the European Commission and the UK’s Competition & Markets Authority (CMA) and has extensive experience coordinating global merger filings and regulatory investigations. She also works closely with Wilson Sonsini’s data protection and privacy team to provide clients with integrated, strategic advice on data-related antitrust counselling and digital platform regulation, including the EU’s Digital Markets Act.
She has experience across a wide range of sectors, including tech, advertising (AdTech), financial services, life sciences, aviation, basic industries, and mining.
Deirdre maintains an active pro bono practice. She is a recipient of the firm's John Wilson Award, which is presented annually to attorneys who have demonstrated a significant commitment to the firm's pro bono clients.
Prior to joining the firm in 2015, she was an intern at the European Commission's DG Competition in the Antitrust—Media unit.
Deirdre is a native English speaker, and she is fluent in Irish and French.
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Co-author with L. Boylan and B. Buffier, "CMA Levies Record Fine on Facebook for Deliberate Breach of Hold-Separate Order in Probe of GIPHY Takeover," Wilson Sonsini Alert, October 21, 2021
Co-author with S. Taheny, “European Commission Publishes Guidance Paper on Member State Referrals for Merger Review Even Where National or EU Thresholds Are Not Met,” Wilson Sonsini Alert, April 8, 2021
Co-author with L. Signoret, “Incoming: Increased UK Enforcement in Digital Markets,” Wilson Sonsini Alert, April 8, 2021
Co-author with C. Burton and others, “European Commission Proposes New Rules for Digital Platforms,” Wilson Sonsini Alert, January 12, 2021
Co-author with L. Boylan and B. Buffier, "CMA Levies Record Fine on Facebook for Deliberate Breach of Hold-Separate Order in Probe of GIPHY Takeover," Wilson Sonsini Alert, October 21, 2021
Co-author with S. Taheny, “European Commission Publishes Guidance Paper on Member State Referrals for Merger Review Even Where National or EU Thresholds Are Not Met,” Wilson Sonsini Alert, April 8, 2021
Co-author with L. Signoret, “Incoming: Increased UK Enforcement in Digital Markets,” Wilson Sonsini Alert, April 8, 2021
Co-author with C. Burton and others, “European Commission Proposes New Rules for Digital Platforms,” Wilson Sonsini Alert, January 12, 2021