Opinion

Omnicom-IPG merger: A Christmas sugar hit followed by a strict diet?

Two of the big five agency holding companies, Omnicom and Interpublic, are set to merge. TrinityP3’s Stephen Wright breaks down the potential winners and losers from the deal and its implications for the Australian market.

‘Tis the season.

This week, the market paused to absorb the news of an epic US$13bn global merger between two of the big five holding companies – Omnicom and Interpublic.

This is massive news with repercussions across major advertising markets, including Australia. If I may extend the Christmas metaphor further, I worry this is a holiday sugar hit — designed to boost the share price and secure executive bonuses — but, as with all Christmas indulgences, January will bring a strict diet, and trimming down will begin in earnest.

Drivers of the Merger

Much has been written this week about the plan to combine Omnicom’s Omni and IPG’s Interact behavioral tools, IPG’s Acxiom identity layer, and Omnicom’s Flywheel for transactions. In an era of growing ecommerce, this is relevant, particularly for retail clients.

Omnicom is also positioning the merger as a key step toward its “AI-driven future”.

“If Interpublic was three-quarters of our size, yesterday I had $1 to invest in those efforts; now I have $1.67,” John Wren, chairman and CEO of Omnicom, told the media this week. “It should make me more agile and allow greater investment in testing new technologies and platforms to deliver better, more accurate information for our real knowledge workers.”

L-R: John Wren, chairman and CEO of Omnicom; Philippe Krakowsky, IPG CEO

However, beyond these points, the tangible client benefits are hard to see — particularly in the Australian market. Does this market need a new agency behemoth? Almost certainly not.

All the large holding companies already secure comparable rates and deals. A new behemoth is unlikely to extract greater value, especially as Omnicom is already the largest player in Australia. Media owners maintain strict control over inventory pricing, and reducing yield in 2025 is unlikely given current market headwinds.

If there’s a strategic client benefit, it is difficult to identify. Neither group possesses a must-have tool or system that will suddenly become widely available.

Client and Market Impact

Few local clients will have congratulated Peter Horgan on this acquisition. On the other hand, Mark Coad likely received concerned calls about the future of the media agency brands in the stable. Client demand has been shifting toward independents, with their nimble service models, senior personnel, and greater attentiveness — qualities increasingly attractive to clients.

The Issue of Conflict

Conflict remains a significant challenge, as evidenced by the failure of the 2013 Omnicom/Publicis “merger of equals”. It’s difficult to believe all seven major media agency brands — OMD, PHD, Hearts and Science, Resolution Digital, UM, Initiative, and Mediahub — will survive under the new structure.

Globally, no holding group operates more than four core brands. Decisions on which brands to retain will likely be driven by the US market rather than local needs, and we can expect at least one or two brands to disappear as part of the promised cost savings.

Cost Savings and Redundancies

The US$750 million in savings promised to the market suggests detailed plans are already in place. With Australia as the 7th largest advertising market, it’s plausible that the local market might be expected to contribute around US$30 million in savings — a figure that could mean significant redundancies and restructuring.

Both groups have already achieved savings by centralizing resources across their brands. Further cuts will require personnel reductions. Salaries and staff will bear the brunt. It will be telling to see which, if any, HR department first declares itself redundant.

Winners and Losers

So far, the winners aren’t immediately clear outside shareholders and senior leadership. The market didn’t ask for this merger, and the fundamental question remains: What problem is this merger trying to solve?

For the past decade, the race for scale has been relentless — an idea championed by Sir Martin Sorrell during his WPP tenure. The goal was to leverage scale to secure the best deals with media owners, but outside of Google and Meta, few media owners can offer meaningful advantages on this scale.

With regulatory, client conflict, and operational challenges ahead, the New Year will reveal whether this sugar rush was worth it. Staff, clients, and leadership alike must brace for the strict diet this regime will demand.

Stephen Wright is business director of Australia & global at TrinityP3. 

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