Agencies That Merge Creative and Data in 2025

The best agencies for integrating creative and data in 2025 are not the ones with the most impressive tech stacks. They are the ones that have built operating models where insight and execution share the same room, answer to the same brief, and are judged by the same commercial outcomes. That distinction matters more than it sounds.

Most agencies claim this integration. Few have solved it. The gap between the pitch deck and the actual workflow is where most of them fall apart, and if you have sat through enough agency reviews, you already know exactly what that looks like.

Why Most Agencies Still Have Not Solved This

I have been in enough agency new business pitches, on both sides of the table, to know how this usually plays out. The credentials deck shows a data science team. There is a slide about a proprietary insights platform. Someone mentions a “creative intelligence framework.” Then you get into the actual work and discover that the data team produces a monthly report that the creative team politely ignores.

The structural problem is that most agencies were built around disciplines, not outcomes. Creative sits in one function. Analytics sits in another. Strategy is supposed to bridge them, but in practice strategy is often just the person who writes the brief and then gets out of the way. The result is a sequential process dressed up as an integrated one.

This is not a new problem. It is just a more expensive one now that media costs are higher, attention is scarcer, and the margin for waste has shrunk. If you are managing significant ad spend across multiple channels, the difference between a genuinely integrated agency and one that uses the word “integrated” in its positioning is not academic. It shows up in your numbers.

For broader context on why go-to-market execution has become harder to coordinate across creative and performance functions, the Go-To-Market and Growth Strategy hub covers the structural issues that sit upstream of agency selection.

What Genuine Integration Actually Looks Like

Before looking at specific agencies, it is worth being precise about what we mean. Creative-data integration is not a creative team that gets a pre-campaign data briefing. It is not a performance team that runs post-campaign analysis. Those things happen at most agencies and they are not integration, they are standard process.

Genuine integration means data influences creative decisions in real time or near-real time, creative hypotheses are formed with testability built in from the start, and the people making creative calls have enough data literacy to interpret signals without needing a translator. It also means the data team understands what is creatively possible, not just what is statistically significant.

I spent time at iProspect when we were scaling hard, taking the business from around 20 people to over 100 and moving from the bottom of the performance agency rankings to a top-five position. One of the things that separated the work we were most proud of from the work we were least proud of was whether creative and data people had actually sat together early in the process. When they had, the briefs were sharper, the tests were more meaningful, and the results held up to scrutiny. When they had not, we were essentially optimising execution of a flawed idea.

Vidyard has written about why go-to-market execution feels harder now than it did five years ago. A significant part of that difficulty is coordination cost: more channels, more data sources, more stakeholders, and less clarity about who owns the creative-performance feedback loop. Agencies that have solved this internally are genuinely rare.

The Agencies Worth Paying Attention to in 2025

This is not a ranked list. Rankings of this kind are almost always gamed, outdated, or based on award submissions rather than commercial performance. What follows is a framework for identifying which agencies have genuinely built the operating model, with examples of the types of shops that have made structural progress.

The Holding Company Networks: More Capable Than They Get Credit For

The large holding company networks, WPP, Publicis, Omnicom, IPG, Dentsu, get a lot of criticism for bureaucracy, and some of it is deserved. But the honest assessment is that several of them have made real structural investments in creative-data integration over the past five years, and the output is starting to show.

Publicis has arguably gone furthest with its Epsilon data layer, which is embedded across creative, media, and CRM work rather than sitting as a separate data product. The integration is imperfect in practice, but the architecture is more coherent than most competitors. When a creative team at Publicis has access to the same first-party data signals as the media team, and both are working against the same outcome metrics, you get fewer situations where beautiful creative runs in front of entirely the wrong audience.

WPP’s investment in GroupM and its data capabilities alongside creative agencies like Ogilvy and AKQA has produced some genuinely strong integrated work, particularly for clients willing to consolidate their spend and data within the network. The caveat is that consolidation requirement. If your media and creative are split across multiple agencies, the integration benefit evaporates.

I have had direct experience working alongside Dentsu on pitches and projects. The capability is there. The challenge is that it can be inconsistent across markets and teams. I once sat through a Dentsu presentation on AI-driven personalised creative that claimed extraordinary performance uplifts. My reaction was blunt: they had replaced weak creative with slightly less weak creative and attributed the improvement to machine learning. The AI had not created the lift. Raising the creative floor had. Those are very different things, and conflating them leads to bad decisions about where to invest next.

The Independent Specialists: Where the Most Interesting Work Is Happening

The most structurally coherent creative-data integration I have seen in 2025 is coming from a specific type of independent agency: mid-sized, founder-led or recently professionalized, with a background in either performance marketing that has grown into brand, or brand that has been forced into accountability by client demand.

Agencies like Jellyfish, which Brandtech acquired and has been scaling, have built operating models where creative production and data analysis are genuinely parallel rather than sequential. The creative team is not waiting for a brief from strategy. They are in the same room as the data team, looking at the same signals, forming hypotheses together. That sounds simple. In practice it requires a complete rethinking of how creative directors are hired, how they are measured, and what they are expected to know.

System1 is worth mentioning in a different context. They are not a full-service agency, but their approach to measuring emotional response in creative before it runs has influenced how a number of agencies now think about creative testing. The insight that emotional priming in advertising predicts long-term brand growth more reliably than recall scores has changed briefing processes at several shops that have adopted their methodology.

Iris Worldwide has done interesting work in building what they describe as a behavioural science layer into creative development. Whether that fully delivers in practice varies by brief and client, but the structural intent is right: use data about how people actually make decisions to inform what creative should do, not just where it should run.

BCG’s research on the coalition between brand strategy and go-to-market execution is relevant here. The agencies that are winning on creative-data integration are the ones that have stopped treating brand and performance as separate mandates and started building work that serves both simultaneously.

The Consultancy-Turned-Agency Model: Real Capability, Real Limitations

Accenture Song, Deloitte Digital, and similar consultancy-origin shops have genuine data capability and the enterprise relationships to access first-party data at scale. Their limitation has historically been creative quality. Consulting firms think in frameworks and deliverables. Creative agencies think in ideas and execution. Those are different cognitive modes, and hiring creative talent into a consulting culture does not automatically produce the integration you want.

Accenture Song has improved meaningfully. Their acquisition of Droga5 gave them genuine creative credibility, and the work coming out of that combination has been stronger than most people expected. The honest assessment is that they are still better at data-led creative strategy than at the kind of culturally resonant brand work that pure creative agencies produce at their best. For B2B clients, enterprise technology brands, and companies where the purchase experience is long and data-rich, they are a serious option. For consumer brands where emotional connection drives preference, the jury is still out.

The growth loop concept is relevant to how these agencies think about creative performance. Hotjar’s work on growth loops illustrates how feedback mechanisms can be built into product and marketing workflows. The best agencies are applying similar thinking to creative: treating each campaign as a feedback mechanism that informs the next one, rather than a standalone execution.

How to Evaluate an Agency’s Integration Claims

If you are in the market for an agency that genuinely integrates creative and data, here are the questions that cut through the pitch theatre.

Ask them to show you a brief. Not a finished campaign, a brief. How is data incorporated into the brief itself? Is it a single insight pulled from a research deck, or is it a live set of signals that the creative team will continue to reference throughout development? The brief tells you more about the operating model than the case study does.

Ask who attends the creative review. If the answer is creative directors and account managers, that is a traditional agency. If the answer includes data strategists and performance leads, that is an agency that has at least attempted structural integration. Ask what authority those people have. Can a data lead kill a creative direction? Can a creative director push back on a data recommendation? The answer should be yes to both.

Ask about their testing methodology. Not “do you test?” but “how do you design creative for testability?” An agency with genuine integration builds hypotheses into creative from the start. They know before launch what they are trying to learn, not just what they are trying to achieve. That distinction separates agencies that use data to justify decisions from agencies that use data to make better ones.

Ask about failure. Show me a campaign where the data told you something you did not want to hear about the creative, and show me what happened next. Agencies that have genuinely integrated creative and data have stories about creative they killed based on early signals, or briefs they rewrote mid-flight because the data changed. Agencies that have not integrated them have stories about post-campaign analysis that informed the next brief, which is a much slower and less useful feedback loop.

Early in my career, I was handed a whiteboard pen mid-brainstorm when a founder had to leave the room. The internal monologue was not particularly flattering. But the experience taught me something useful: the people who can hold a room and generate useful ideas under pressure are not always the ones with the most impressive credentials. They are the ones who have built enough genuine fluency across disciplines to think on their feet. The same applies to agencies. The ones worth hiring are the ones where the data person can sketch a creative idea and the creative director can read a performance dashboard.

Semrush’s analysis of growth hacking in practice includes examples of where creative and data alignment produced compounding returns rather than one-off lifts. The pattern is consistent: the campaigns that scaled were the ones where the creative was designed to generate data, not just to run against it.

The Structural Conditions That Make Integration Work

Agency selection matters less than you might think if the structural conditions on your side are wrong. The best integrated agency in the world cannot do its job if your internal team treats creative and performance as separate budget lines with separate owners and separate success metrics.

If your CMO owns brand and your CFO owns performance, and those two functions have different measurement frameworks and different agency relationships, no agency can bridge that gap from the outside. The integration has to exist on your side of the relationship before it can exist on theirs.

BCG’s work on go-to-market strategy and market penetration makes a related point about alignment: the companies that execute go-to-market most effectively are the ones where commercial strategy, creative execution, and performance measurement are governed by the same set of objectives. The agency is a delivery mechanism for that alignment, not a substitute for it.

The agencies worth working with in 2025 will tell you this directly. If an agency walks into a pitch and does not ask about your internal governance structure, your measurement framework, and who owns the creative-performance relationship on your side, they are not thinking about integration. They are thinking about winning the business.

More on how these structural questions connect to broader go-to-market planning is covered across the Go-To-Market and Growth Strategy section of The Marketing Juice, where the focus is on commercial execution rather than marketing theory.

The Honest Summary

There is no definitive ranked list of the best agencies for integrating creative and data in 2025. Anyone who tells you otherwise is either selling something or has not looked closely enough at how agencies actually operate versus how they present themselves.

What exists is a set of agencies that have made genuine structural progress: Publicis and its Epsilon infrastructure, Jellyfish and the Brandtech model, Accenture Song post-Droga5, and a number of mid-sized independents that have built integration into their operating model rather than their pitch deck. What also exists is a much larger set of agencies that use the language of integration without having done the structural work.

The way to tell them apart is not to read the case studies. It is to ask the operational questions, look at the brief, find out who sits in the creative review, and ask them to show you a campaign they changed course on mid-flight. The answers will tell you everything you need to know.

About the Author

Keith Lacy is a marketing strategist and former agency CEO with 20+ years of experience across agency leadership, performance marketing, and commercial strategy. He writes The Marketing Juice to cut through the noise and share what works.

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