The European Commission, the EU’s (European Union) main executive body has granted unconditional antitrust approval to the proposed acquisition of the Interpublic Group of Companies, Inc. (IPG) by Omnicom Group Inc., concluding that the merger of the two US-based advertising giants does not raise competition concerns within the European Economic Area (EEA).
The regulatory body, operating under the EU Merger Regulation, announced its Phase I decision after a review of the transaction, which was formally notified on 20 October 2025. The investigation focused on the potential impact the combined entity would have on national markets across the EEA for marketing communication services (MCS) and media buying services (MBS).
In its assessment, the Commission found that the merged company would hold only moderate market shares in these sectors. Crucially, it determined that the new entity would face significant competitive pressure from several other large, international advertising groups, including WPP, Dentsu-Aegis, Publicis, and Havas.
The Commission’s investigation detailed several factors that would preserve market competition. It concluded that customers would retain a strong ability to switch providers if the merged entity attempted to increase prices or lower service quality. This flexibility is facilitated by the bidding processes common in the industry, the relatively short duration of client contracts, and the limited costs associated with changing agencies.
Furthermore, the Commission addressed potential concerns regarding media buying power. It found that should the combined Omnicom-IPG try to leverage its position in MBS to gain an advantage in negotiations with media owners, those owners possess sufficient countervailing power due to a significant degree of concentration within the European media landscape.
Omnicom and IPG are both major global providers of advertising, marketing, and communications services. Omnicom’s portfolio includes brand advertising, media planning and buying, and public relations, while IPG offers similar services, including media buying and planning, data solutions, and creative advertising.
With this unconditional clearance, the European Commission has determined that the transaction would not significantly impede effective competition within the EEA. The vast majority of mergers reviewed by the Commission are cleared after this initial, routine review phase.
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