The advertising world just got a major shake-up. Omnicom has announced it will eliminate more than 4,000 positions and shutter several iconic agency brands following the completion of its massive $13 billion acquisition of rival Interpublic Group.
This deal transforms Omnicom into the world’s largest advertising agency by revenue, overtaking France’s Publicis and pushing Britain’s WPP down to third place.
The merger represents a dramatic shift in the balance of power in the advertising industry, shifting the axis of power back to Manhattan, New York-the fabled hub of the “Mad Men” days. But it comes at a high price for some of the industry’s most storied names.
Casualties include iconic brands that have defined advertising for decades. Among them is DDB-the 1949 creative powerhouse and influential adman William Bernbach-founded shop, which will be folded into Omnicom’s TBWA network. The same goes for MullenLowe, another respected creative marketing agency.
Perhaps most surprisingly, FCB-which traces its roots back to 1873, making it one of the oldest advertising networks in existence-will be absorbed into Omnicom’s BBDO. These closures represent the end of an era for agencies that have created some of the world’s most memorable advertising campaigns.
Omnicom and IPG Cuts: Over 6,400 Jobs Lost as Traditional Ad Agencies Restructure Against Tech Giants
In an explanation of the cuts, Omnicom CEO John Wren said the more than 4,000 job losses will be mostly administrative, but leadership positions will also be cut. He assured that employees who were bringing in revenue prior to the December close of the deal have job security.
“There’s efficiencies, they come in the form of labour and other things,” said Wren. “But anybody that was generating revenue before December last year has a very good position with us today.”
These cuts add to an already brutal period for advertising industry workers. IPG had already eliminated 2,400 jobs in the first half of 2025, on top of roughly 4,000 cuts the previous year, reducing its headcount to about 51,000. Omnicom similarly trimmed 3,000 positions last year, bringing its workforce down to approximately 75,000.
Omnicom executives pointed out that similar restructuring is happening across the industry, with competitor WPP also expected to announce job cuts under new CEO Cindy Rose.
The merger between Omnicom and IPG reflects the increasing pressures on traditional ad agencies. Giants like Google and Meta have become formidable competitors, offering both platforms for brands and ways to take care of their marketing in-house. This direct competition has been squeezing the business models of traditional agencies.
AI and Consolidation Pressure on Traditional Creative Agencies
Making matters worse, artificial intelligence is upending the way advertising is created. AI-powered tools now allow companies to create ads more quickly and cheaply than ever before, eroding the value of traditional creative agencies. That pressure is evident in Omnicom’s stock: shares are down 17 percent thus far this year.
Not all is vanishing, however, despite the closures and cuts. Major brands such as McCann, OMD, FleishmanHillard, Golin, and Weber Shandwick will remain intact across media, public relations, and branding businesses. Wren said the consolidation would fall heavier on creative ad agencies, as opposed to media agencies responsible for ad placement and sales.
The financial picture looks bright for Omnicom. Wren said the merger’s financial benefits, including annual cost savings, will be higher than the previously estimated $750 million; exact figures will be published early next year. The new cash generation will enable the company to “make whatever investments are necessary to keep our brands in a leadership position,” he said.
Troy Ruhanen, Omnicom’s advertising chief, pushed back on the idea that the merger was simply about eliminating competition. “It is very much driven by wanting to assemble the capabilities that are needed on behalf of our clients,” he said.
Merger Delivers Scale and AI Advantage, Defying Early Fears
One bright spot: Wren said that, contrary to early predictions, the merger hasn’t triggered an exodus of key talent or forced the company to drop clients due to conflicts of interest. The combined entity will share access to technology tools and AI platforms across its network, creating what Wren called “the largest media capability and position throughout the world.”
The deal marks a new era for the advertising industry and its professionals-one in which scale, technology, and efficiency are increasingly more important than the boutique creativity that once defined the business. Claude can make mistakes. Please double-check responses.
