Publicis Groupe secured twice the volume of new business awards as WPP or Omnicom in the first half of 2025, according to aggregated pitch data compiled by Ad Age, while WPP reported revenue headwinds across multiple divisions and Omnicom prepared to finalize its $13.25 billion acquisition of Interpublic Group. The divergence arrives six months before the Omnicom-IPG entity assumes operational control of $25 billion in combined annual revenue.
Publicis won 42 contested pitches worth an estimated $2.8 billion in annualized billings between January and June, compared to 21 wins for WPP and 19 for Omnicom, per the Ad Age New Business Report. WPP's organic revenue declined 1.7 percent year-over-year in Q2, driven by pullbacks in North American automotive and technology accounts. Omnicom posted flat growth at 0.3 percent while managing integration planning for IPG's 54,000 employees across 90 markets. Havas, owned by Vivendi, reported 4.1 percent organic growth, the strongest performance among the legacy five holding companies.
The performance gap reflects three structural factors allocators should note. First, Publicis chairman Arthur Sadoun repositioned the group's AI and data infrastructure—branded as Publicis Sapient and Epsilon—as the connective layer beneath creative output, winning mandates from Hilton, Samsung, and L'Oréal that required integrated media-plus-technology execution. Second, WPP's client concentration in automotive (18 percent of revenue) exposed the group to spending cuts at Stellantis, Ford, and Nissan, which collectively reduced North American ad budgets by an estimated $1.2 billion in H1. Third, Omnicom deliberately slowed new business pursuit velocity in Q1 and Q2 to avoid onboarding accounts that would complicate IPG integration, a defensive posture that cost the group pitches for Nestlé's North American media and American Express's global creative.
The holding-company hierarchy now operates on two axes: scale and momentum. Omnicom-IPG will control $25 billion in revenue, $8 billion ahead of WPP and $11 billion ahead of Publicis, but Publicis holds pricing power in AI-enabled workflow, the category where luxury, automotive, and consumer-goods clients are increasing allocation. WPP's Mark Read told investors in July that the company would "prioritize profitability over growth" through 2026, a signal that the group will defend margins by shedding lower-yield accounts rather than chase volume. Dentsu, the fifth-largest holdco, continues its managed decline in Western markets, posting 6.2 percent organic revenue contraction in Japan and 2.9 percent growth in the Americas, with private-equity chatter around a potential breakup resurfacing in late Q2.
Operators should track three catalysts through Q4. First, Omnicom's formal IPG integration beginning in late September, which will determine whether the combined entity can execute cross-holdco collaboration on 12 major accounts that currently split spending between Omnicom and IPG agencies. Second, WPP's expected announcement of a restructuring plan in November, likely involving the consolidation of 3-5 overlapping agency brands in North America and Europe. Third, Publicis's AI infrastructure revenue, which the company disclosed grew 22 percent year-over-year in H1, a metric that will indicate whether the group's technology-first positioning translates to durable margin expansion or requires sustained capital investment that pressures free cash flow.
The Omnicom-IPG entity begins formal operations in Q4, with first combined financials due in February 2026.
The takeaway
Publicis wins on AI-workflow positioning while WPP retreats to margin defense; Omnicom-IPG scale play faces integration execution risk through early 2026.
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