Observed Signal · Jun 22, 2026 · Industry Report · Source: Meedia · Impact: 3/5 · Sentiment: Neutral
COMvergence: WPP Tops Publicis in 2025 Rankings
COMvergence's global report for 2025 shows the combined billings of the Big-6 holdings and major independent media agencies totalled $265 billion, up 1.7% year-over-year. WPP Media retained the top group position with $63.9 billion in billings (about 13% market share), narrowly ahead of Publicis Media, which grew to $62.4 billion (the strongest growth among the Big 6). Omnicom ranked third with $48.5 billion. COMvergence estimates global net media spend across 49 markets at $478 billion and reports digital media accounted for 57% of agency billings among the large groups and independents. The report also highlights consolidation: Omnicom’s acquisition of IPG at the end of 2025 would create a Big‑5 configuration with Omnicom in the lead under that scenario.
The COMvergence report provides updated global billings, market shares and growth rates for major media agency groups and independents and highlights industry consolidation (Omnicom/IPG). These figures inform agency positioning, media-buying dynamics and strategic planning across the AdTech/MarTech ecosystem.
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Key Takeaways & Evidence Grounding
- COMvergence's 2025 report estimates Big-6 and large independent media agency billings at $265 billion (+1.7% vs 2024).
- WPP Media led the group ranking in 2025 with $63.9 billion in billings (≈13% market share).
- Publicis Media grew the most among the Big 6 to $62.4 billion (+12.8% vs 2024).
- Omnicom reported $48.5 billion in billings and completed an acquisition of IPG at the end of 2025, creating a Big-5 grouping.
- COMvergence estimates digital media represented 57% of media agency billings in 2025 (≈$151 billion for Big-6 and major independents).
Connected Companies & Entities
5 Entities mappedRelated Market Signals & Shifts
Recent verified developments and strategic activity across this market segment.
WPP Media Tops Comvergence 2025 Ranking
Comvergence's global media-agency ranking for 2025 places WPP Media as the largest media-agency holding, with reported billings of roughly $63.9 billion. The article, published by HORIZONT on 2026-06-22 and written by Juliane Paperlein, notes WPP Media is led by CEO Brian Lesser. It also cautions that, depending on calculation methodology, WPP's top position could already be lost. Comvergence is identified in the piece as a French research firm that compiles the market-observer ranking.
Recma: Omnicom Media Holds ~33% Global Share
Paris-based market researcher Recma published its "Overall Activity Report 2025," showing Omnicom Media with a global market share of about 33 percent following Omnicom's holding-level acquisition of Interpublic. The report combines billing from traditional media with non-traditional activities (digital, content, sponsorship) under an "Overall Activity" metric. According to Recma, Omnicom Media stands well ahead of WPP Media and Publicis Media (each ~24%). Network-level leaders include OMD (~10% share, 2.5% growth in 2025), EssenceMediacom (second, -4.7% revenue), Mindshare (third, -2.9%), and Publicis agencies Zenith and Starcom showing double-digit revenue growth. The report covers 54 markets and analyzes more than 800 media agencies.
Agency Report 2026: Omnicom Tops Rankings After Merger
Ad Age’s 2026 Agency Report shows Omnicom reclaimed the No. 1 agency ranking after acquiring Interpublic Group of Cos., highlighting consolidation at the top of the industry. The report also signals a broader shift: legacy holding companies now hold a smaller share of top-25 agency revenue even as Omnicom rose to the top. Related coverage called out AI hype and reflected client-side moves such as Procter & Gamble’s emphasis on a human-plus-AI approach and a modular agency model.
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