Growth marketing pricing: retainer, fee + bonus or no-cure-no-pay?

Before you choose an agency, you are really choosing a pricing model first. And that model determines more than you think: it steers which behaviour you reward, how much room there is to experiment, and whether your partner looks at the long or the short term. In this article you compare the three growth marketing pricing models you encounter most often in the Benelux: the fixed retainer, fee plus bonus and no-cure-no-pay. You will read why no-cure-no-pay sounds attractive but rarely fits real experiment-driven work, and how to pick the model that suits your situation.

Honest up front: there is no universally best model. What works depends on your sales cycle, your data volume and how mature your growth engine already is. But some models do structurally invite the wrong behaviour. That is where we start.

First this: why the pricing model shapes the work

Growth marketing is not an isolated tactic you buy in. It is the system that orchestrates SEO, CRO, content, paid and lead generation into a single predictable growth engine. You steer on leads, revenue and pipeline, not on vanity metrics such as likes or impressions. That learning, iterative character is exactly where pricing models can come into conflict.

The work consists for a large part of experiments. You formulate a hypothesis, you test, you measure, and in many cases the experiment does not work out as hoped. That is not a failure, that is the engine: every experiment that does not work closes off a hypothesis and brings you closer to what does work. A pricing model that only rewards successful experiments therefore actually penalises the learning process itself. Keep that in mind as you read the three models below.

Model 1: the fixed retainer

With a retainer you pay a fixed amount per month for an agreed level of effort and scope. The agency helps build your growth engine, runs experiments, optimises and reports, and you know up front what it costs.

Why this fits growth marketing. A retainer funds the system, not the isolated output. The agency can let an experiment fail without that immediately hitting its income, and can therefore make honest choices about what to test. That is crucial, because the best growth decision is sometimes to stop a channel or to investigate a promising but unproven hypothesis. A retainer gives that freedom.

What to watch out for. A retainer without clear goals quickly turns into a blank cheque. Agree up front on the outcomes you steer on together: qualified leads, pipeline, revenue. Ask for transparent reporting and a rhythm of evaluation, quarterly for example, in which you decide together whether the effort still makes sense. A good retainer feels like a partnership with measurable expectations, not like a subscription that simply rolls on.

Who it is for. The retainer is the standard model for companies that want to grow structurally and that understand a growth engine needs time to get going. If you are investing seriously in growth, this is almost always your starting point.

Model 2: fee plus bonus

With fee plus bonus you pay a lower fixed fee plus a variable bonus tied to results. The fee covers the work, the bonus shares the upside when you hit the goals together.

Why this is attractive. This model aligns interests. Your agency earns extra when you grow, so everyone is looking in the same direction. It keeps fixed costs lower than a full retainer and gives your partner a direct incentive to steer on real impact instead of on busywork.

Where it goes wrong if you are not careful. A bonus is only fair if you base it on a clean baseline. Growth that was going to happen anyway cannot be billed as a won performance. So agree on the starting point you measure against and on which metric counts. Choose a metric the agency can genuinely influence: pipeline or qualified leads are often fairer than end revenue, because sales and product pricing sit outside marketing’s sphere of influence. And keep the attribution question sharp: who gets the credit when several channels land a deal together?

Who it is for. Fee plus bonus works well when there is enough data volume to measure results reliably and when both parties already trust each other a little. It is a fine model for the phase where your growth engine is already running and you want to accelerate together on clear goals.

Model 3: no-cure-no-pay

With no-cure-no-pay you only pay on results. No leads or no revenue, no invoice. It sounds like the ideal risk-free model, and that is exactly why many companies choose it at first. But for growth marketing it is often a trap.

Why it rarely fits experiment-driven work. An agency that only gets paid on direct results cannot afford failed experiments. So it stops experimenting. It reaches for the safest, fastest tactics that deliver something in the short term: aggressive discount campaigns, skimming off demand that was already there, or bidding on branded search terms where people were looking for you anyway. Those are not growth engines, those are ways to capture existing demand and present it as new profit.

The deeper problem is this: growth marketing is a learning system, and no-cure-no-pay settles up on isolated outcomes. Those two do not fit together. The model pushes your partner away from the hypotheses that deliver the most over time but that can also fail, and towards the safe quick win. You may not pay for failure, but you do pay for a growth engine that never gets built.

The attribution problem. No-cure-no-pay lives or dies on the question of who caused the result. In a world of long B2B sales cycles and multiple touchpoints, that is almost impossible to assign cleanly. Did that deal come from the agency’s campaign, from your own sales team, from a referral, or from all three? No-cure-no-pay turns that question into a conflict instead of a shared learning exercise.

When it can work after all. For a sharply defined, transactional assignment with a short cycle and unambiguous attribution, no-cure-no-pay can be defensible. Think of a one-off, highly measurable lead campaign. But as soon as the work is about systematic, learning-driven growth, it is the wrong model.

How to choose the right model

Do not choose your model based on who promises the lowest risk, but based on your situation. Three questions help you decide.

• How long is your sales cycle? The longer and more complex the journey from first contact to deal, the worse results-based models work, because attribution gets murky. A long cycle usually means: retainer.
• How much data do you have? Bonus models need volume to measure results reliably. Too little data and every bonus becomes a discussion about luck versus performance.
• Where are you on your growth journey? If you are still building the engine, you need the room a retainer gives you to experiment. If the engine is already running and you want to accelerate, fee plus bonus can align interests further.

The honest answer is usually nuanced: many companies start with a retainer to build the growth engine and gather the first learnings, and later build in a bonus component once the goals and the data are clear. That growth path respects both the learning nature of the work and your need for results.

Want to understand how this whole system fits together before you negotiate on price? Then first read our explanation of what growth marketing actually is. Want to know which models we use and which approach suits your growth phase? Take a look at our growth marketing agency and the way we work together.

It is also worth tying your pricing model to the right steering metric. Whichever number you put in your contract determines what your partner steers on. So read up on how to choose a north star metric that measures real growth and not just activity.

Conclusion

The pricing model is not an administrative detail, it shapes the work. A fixed retainer funds the experiment-driven work that growth marketing runs on. Fee plus bonus aligns interests, provided you agree on an honest baseline and an influenceable metric. No-cure-no-pay sounds risk-free, but pushes your partner towards safe short-term tactics and clashes with the learning system you actually want to build. So do not pick the model with the nicest promise, but the model that fits your sales cycle, your data and your growth phase.

Want to talk through which model suits your situation and what a predictable growth engine looks like for you? Get in touch and we will gladly think along, without you committing to anything right away.

Further reading

• What is a growth stack? The martech behind your growth engine