e4m Report Card 2025: Great year for platforms, course correction for agencies, publishers

If 2025 felt calmer than the last few years of advertising upheaval, it was not because the system had stabilised. It was because power stopped moving around. This was the year incremental growth, budget confidence and strategic clarity consolidated decisively around platforms, while brands, agencies and publishers quietly adjusted their expectations and operating models to that reality.

Globally, the headline numbers looked reassuring. Forecasts upgraded through 2025 pegged global advertising growth at roughly 8.8 to 8.9 percent, pushing total ad spend to between $1.14 trillion and $1.19 trillion. Crucially, those upgrades were not driven by a broad-based renaissance across the media ecosystem. They were explicitly attributed to stronger-than-expected performance from the largest digital platforms.

Alphabet, Meta and Amazon alone are projected to command about 56 percent of global ad spend outside China in 2025, amounting to roughly $550 billion, with their combined share forecast to rise further towards 58 to 59 percent by 2027 as they absorb the vast majority of incremental dollars.

This concentration is not incidental. Retail media now accounts for approximately 14 to 15 percent of global ad spend, channeling growth into platform-owned, lower-funnel environments where data, distribution and measurement are tightly coupled. The implication is simple. Even when the market grows, the upside accrues disproportionately to a small number of actors that control closed ecosystems at scale.

Also read: India’s retail media boom now runs on fulfilment, not discounts

India mirrored this pattern with remarkable clarity. GroupM’s 2025 outlook placed India’s advertising market at roughly ₹1.64 lakh crore, growing around 7 percent year on year. Of the approximately ₹10,700 crore in incremental ad revenue expected in 2025, digital was projected to capture about ₹10,200 crore.

In other words, more than 95 percent of all net new advertising money in India flowed into digital formats, much of it into large platforms spanning search, social, video and commerce. Digital’s share of Indian adex is expected to approach 60 percent, while television remains largely flat and print grows in low single digits.

This arithmetic matters because it reframes the year. 2025 was not about platforms taking money away from everyone else. It was about platforms taking almost all the new money. In a risk-averse environment shaped by AI opacity, attribution fatigue and economic caution, incremental budgets gravitated towards destinations that felt defensible in boardrooms.

Research bodies tracking global ad markets were blunt about what was happening. WARC repeatedly noted that upgraded growth forecasts were being driven by strong results from Big Tech platforms and that a handful of markets and companies were capturing a disproportionate share of the upside. UNCTAD went further, situating this within a broader structural shift.

Between 2017 and 2025, the combined share of sales held by the top five digital multinationals more than doubled, from about 21 percent to roughly 48 percent. Advertising did not create this concentration, but it increasingly reflected and reinforced it.

AI accelerated this gravitational pull. In 2025, meaningful AI advantage was less about generative novelty and more about embedded capability. Auction-level optimisation, predictive modelling and closed-loop feedback systems sat deep inside platform infrastructure. These were not tools brands or agencies could easily replicate on their own.

Also read: How AI is turning shopping into a single automated decision

As optimisation became more automated and more opaque, scale became more valuable. Platforms that controlled data, distribution and optimisation logic simultaneously gained a structural advantage that was difficult to contest without matching their breadth.

This had a chilling effect on experimentation. Innovation did not disappear in 2025, but it became conditional. Test-and-learn budgets shrank. New channels were expected to justify themselves faster.

Long-tail publisher networks and speculative formats quietly lost out, not necessarily because they underperformed, but because they were harder to explain internally. In a year when dashboards themselves were under scrutiny, marketers prioritised legibility over exploration.

Agencies felt this shift most acutely, and their response was telling. Rather than projecting confidence outward, many turned inward to consolidate, simplify and scale themselves defensively.

The clearest signal came late in the year with Omnicom’s roughly $13 to $13.5 billion acquisition of Interpublic Group, widely described as the largest deal in advertising history. The merger brought together legacy networks including McCann, FCB, Lowe, MullenLowe, DDB, BBDO and TBWA under a more tightly integrated umbrella.

The strategic rationale was explicit. Competing with platforms required scale, data depth and AI capability that fragmented holding structures struggled to deliver.

This was not an isolated move. 2025 was widely described by M&A trackers as a banner year for advertising consolidation, driven by a combination of lower interest rates, rising AI investment requirements and margin pressure in the face of platform dominance.

The consolidation was not just about acquiring competitors. It was about collapsing overlapping networks, pruning legacy brands and rewiring reporting lines to create fewer, larger entities that could present end-to-end offerings under a single profit and loss structure.

Publicis Groupe’s January 2025 decision to merge Leo Burnett and Publicis Worldwide into a single global creative network branded “Leo” illustrated this logic at a different scale. The move unified roughly 15,000 creatives across around 90 countries and was pitched as a way to remove internal silos and present one scaled creative offering to clients.

The message was implicit but clear. Fragmentation, once a feature of global agency groups, had become a liability.

India added another layer of pressure to this recalibration. Now roughly the world’s eighth-largest advertising market, with revenues around $18.5 billion in 2024 and forecast growth approaching 9 to 9.4 percent by 2025, India has become both too big and too competitive for inefficiency.

Also read: DPDP Act: Indian advertising bids goodbye to the Wild West

In the first half of 2025, the Competition Commission of India conducted raids on the offices of GroupM, Publicis, Dentsu and IPG in Delhi, Mumbai and Gurugram as part of an investigation into alleged fee and discount collusion. Whatever the eventual outcome, the action underscored how concentrated and interlocked the media-buying layer has become in a platform-heavy market.

Local industry commentary reflected this unease. 2025 was repeatedly described as a year of mergers, with open questions about whether agencies, in their current form, would remain indispensable as platforms, consulting firms and in-house teams expanded their capabilities. This was not framed as a doomsday scenario. It was framed as a reset. Agencies were being forced to articulate their value more clearly in an ecosystem where executional advantage increasingly lived elsewhere.

Publishers, meanwhile, adjusted with less drama but greater urgency. With digital platforms dominating ad growth, Indian media players leaned harder into diversification. EY–FICCI data highlighted events growing around 15 percent, out-of-home advertising growing about 10 percent, and continued momentum in digital formats as key contributors to overall media revenue growth.

Globally, publisher trend reports for 2025 pointed to a sharper focus on product thinking, first-party data strategies, multi-platform distribution and alternative revenue streams such as commerce, memberships and licensing. These shifts were framed explicitly as responses to platform dependency and signal loss, not as optional innovation.

What makes 2025 interesting is not that platforms “won” and everyone else “lost”. It is that the ecosystem collectively adjusted to a new centre of gravity. Brands rebalanced budgets with clearer intent. WARC practitioner data showed that more than half of marketers overseeing larger budgets expected to increase spend on brand-building formats even as performance and retail media environments grew. This was not blind performance addiction. It was an attempt to hedge against over-dependence on short-term metrics in closed systems.

Agencies consolidated to defend relevance. Publishers diversified to reduce vulnerability. Independents found pockets of opportunity as some clients deliberately shifted briefs away from mega-networks in search of agility and conflict-free thinking. The system did not fragment. It hardened.

Regulation hovered in the background throughout the year. Antitrust scrutiny of Big Tech continued globally, and India remained active on competition issues. But regulation did not materially alter buying behaviour in 2025. Marketers watched courtrooms closely while routing budgets through the same channels. Power was being questioned even as it was being reinforced. That contradiction defined the year.

The simplest way to read 2025 is this. Platforms offered certainty in a system that had become harder to explain. They controlled scale, data, distribution and optimisation at a moment when accountability mattered more than experimentation. Everyone else responded rationally. They merged, rewired, diversified or recalibrated, not because they lacked imagination, but because the market rewarded legibility over bravado.

This is why the year deserves a report card, not to assign grades, but to mark a transition. 2025 was a very good year for platforms. Not because they transformed advertising overnight, but because they absorbed almost all of its incremental confidence. For brands, agencies and publishers, it was a year of course correction. Quiet, strategic and, in hindsight, entirely predictable.