There's no universal answer — but there is a clear way to decide. It comes down to three things: the breadth of skills you need, how much work there is, and how much management you can take on.
When an agency wins
- You need several skills at once — design, dev, content, ads — without five hires
- You want senior work without a senior salary
- Your needs flex month to month
- You don't have time to manage and train an in-house team
- You want to move fast and avoid hiring risk
When in-house wins
- Marketing is the core engine of the business, not a support function
- You have constant, high-volume work to justify full-time roles
- Deep product and customer knowledge is essential day to day
- You want full control and availability
The real cost comparison
A single senior in-house marketer is a full salary plus tools, taxes, and management time — and one person rarely covers design, development, and content well. An agency spreads a team's skills across a monthly fee you can scale up or down. For most small and mid-sized businesses, an agency delivers more capability per euro, especially early on.
Why hybrid is often the sweet spot
The strongest setup for a growing business is usually hybrid: one in-house generalist who owns strategy and knows the product, paired with an agency that executes the specialist work — websites, brand, content systems, automation. You get ownership and depth without building a whole department.
Questions to decide quickly
- Do I need one skill deeply, or many skills at once?
- Is the workload steady and full-time, or variable?
- Can I afford the management time an in-house hire needs?
- Do I need this live in weeks, or can I wait out a hiring cycle?