What if the best way to go in-house… is to ask someone outside to build it?
This article explores the rise of external agencies running in-house teams — not as service providers, but as system architects. From incubator models to embedded leadership and full operational takeovers, it’s a smart, scalable way to build internal creative power without starting from zero. Not a paradox. A playbook.

The most effective creative setups today aren’t in-house or external. They’re both.
This article explores the rise of on-site agencies — external partners embedded inside the organization — and why they’re outperforming traditional models by combining brand intimacy with creative friction. Based on insights from the 2025 In-House Barometer, this is what the hybrid future of marketing really looks like.

Some in-house teams are deliberately established by management. Others grow quietly, one role and responsibility at a time. The route taken shapes the team, its mandate and its future challenges.

We have taken a deep dive into the numbers of prestigious industry awards the data underscores the significant rise of in-house agencies over the past decade. At the Cannes Lions International Festival of Creativity, the growth of in-house participation and success is particularly striking.

The traditional divide between in-house marketing teams and external agencies is rapidly dissolving. At ZITE, we’ve observed firsthand how in-house agencies are transforming from corporate support functions into vibrant, creative powerhouses. Our latest endeavor, the 2024 In-House Barometer Study, delves deep into this transformation, revealing how in-house teams are not just adapting but leading the charge in creative and strategic innovation.

Media buying—should it stay in-house or go to an agency? If only the decision were that straightforward. The truth is, in-housing is far from a binary choice. It's more like a spectrum of possibilities, each with its own perks and pitfalls, depending on the size, focus, and goals of a company. And it’s this spectrum that’s shaping the future roles of agencies, advertisers, and publishers.

So, what does this distribution of roles look like going forward? Who’s best positioned to connect all the dots in a way that makes sense for everyone involved?

In-house agencies are not merely growing; they're shouldering an increasing workload. The 2024 In-House Barometer sheds light on a dual progression, charting an exciting course for in-house agencies.

The new 2024 In-House Barometer report, surveying over 1,000 marketing professionals, offers invaluable insights into the profound impact of technology on marketing teams. This exploration delves into the nuanced ways in which AI and technological advancements are not just influencing, but significantly enhancing creative efforts within the industry.

The perennial debate of in-house versus outsourced marketing continues to puzzle companies of all sizes. Each approach boasts its own unique advantages and drawbacks, leaving you to ponder which truly aligns with your specific needs and objectives. However, a crucial element often overlooked is the importance of actively measuring and comparing the efficiency of both models.

The 2024 In-House Barometer Study reveals an intriguing correlation: Larger companies often boast more extensive in-house teams.

The data from the 2024 In-House Barometer offers a comprehensive view of the current state and future ambitions of in-house agencies across different geographical regions, categorized into three distinct Tiers of operational focus.

Remember when marketing plans were set in stone? Well, not anymore. We're in an era where being nimble is the new black. Gone are the days when a yearly marketing plan could be created, approved, and then executed without significant changes. In today’s ever-changing environment, flexibility and agility are not just desirable in marketing; they are essential. A marketing organization's ability to adapt quickly to market changes, consumer behaviour shifts, and technological advancements is a critical determinant of its success. 

Historically, businesses have grappled with a choice: build an in-house team that deeply understands the brand but may lack external perspectives or hire external agencies for their fresh insights but with potential disconnects in company culture. This dichotomy often resulted in challenges regarding career development, creative constraints, and resource management.​

The "In-house Agency as a Service" model ushers in a transformative phase in marketing management. It combines the close familiarity of in-house teams with the wide-ranging expertise and scalability of external agencies.

Companies bringing their marketing efforts in-house is a growing trend in recent years. From social media and content creation to media buying and campaign development, businesses are investing in talent to handle these tasks internally. This shift has proven successful for many companies in terms of both creative campaign awards and effectiveness, as it keeps marketing efforts closer to the core of the business.

However, in-house marketing teams sometimes struggle to find time for creativity and a fresh perspective. To better understand the current state of in-house marketing, we conducted this study, receiving more than 1,200 responses from the European business world. This report aims to gauge their thoughts and feelings about in-house marketing, to identify differences between in-house and outsourced marketing work, and to uncover both models’ perceived advantages and disadvantages.

It is no easy task to run an agency, whether it is in-house or a traditional agency. But from our experience, in-house setups often face other challenges compared to their external counterparts.

So, we asked the teams to identify the greatest challenges they currently face. Here are the Top Ten Challenges in order of frequency:

Marketing teams worldwide are doing okay, but "okay" isn't enough. A recent study by the WFA shows we can do much better if we focus on teamwork and measuring our success the right way. Here's a friendly guide to help us all step up our game

Have you ever tried to solve a puzzle, only to find a piece missing? Frustrating, isn’t it? The world of marketing often feels akin to this—a jigsaw puzzle with that one elusive piece always just out of reach. Could co-creation be the piece we've been so fervently searching for?

Creativity is the lifeblood of innovative marketing campaigns. Yet, as in-house teams expand and the weight of corporate culture sets in, that vibrant creative pulse can start to wane. Remember, sometimes, two heads truly are better than one.

In the quest to optimize budgets without sacrificing quality, CFOs and procurement professionals are turning to the "In-house Agency as a Service" model. Offering a unique blend of cost-effectiveness and specialized expertise, on-site agencies are redefining the value proposition in marketing expenditure.

The modern digital landscape has blurred the lines between in-house marketing teams and external agencies. "In-house Agency as a Service" emerges as a transformative solution, merging the intimacy of internal teams with the expertise of external agencies. This model is not just a cost-saving measure; it's a strategic move for professionalising in-house marketing operations, ensuring rapid scalability, and leveraging the best of MarTech tools.

As businesses further embrace MarTech and AI, the intertwining challenge of compliance grows stronger. These powerful tools that shape our digital experiences bring with them responsibilities that businesses can't afford to neglect. At the heart of this is the novel solution: on-site agencies.