How Marketing, Advertising and PR Firms Make Money

Marketing, advertising, and PR firms generate revenue through a handful of core models: retainers, project fees, commission on media spend, performance-based arrangements, and value-based pricing. Most agencies use a blend of two or three, and the mix they choose reveals as much about their commercial instincts as it does about their client relationships.

Understanding how your agency makes money is not a nice-to-have for senior marketers. It shapes how they staff your account, where they prioritise effort, and whether their incentives are genuinely aligned with yours.

Why Agency Revenue Models Matter to Clients

Early in my career, I sat on the agency side of a pitch where the client had no idea we were earning a 15% commission on every pound of media we recommended. They thought we were giving them objective channel advice. We were, mostly, but the commission created a gravitational pull toward paid media that nobody in the room was acknowledging out loud. That experience stayed with me.

Revenue models are not just an accounting matter. They determine how an agency is incentivised to behave, how it staffs accounts, and where it invests its best thinking. A PR firm on a thin monthly retainer will protect margin by putting junior resource on your account unless the contract specifies otherwise. An advertising agency earning commission on media spend has a financial reason to recommend larger budgets. None of this is necessarily corrupt. It is just commercial reality, and clients who understand it negotiate better, get better service, and make smarter decisions about which model to use for which scope of work.

If you want broader context on the commercial dynamics shaping the PR and communications industry, the PR & Communications hub covers everything from reputation management to rebranding strategy and sector-specific comms challenges.

The Retainer Model: Predictable Revenue, Variable Value

The retainer is the backbone of most agency businesses, particularly in PR and communications. A client pays a fixed monthly fee in exchange for a defined (or sometimes loosely defined) scope of ongoing work. For the agency, it provides revenue predictability and the ability to plan headcount. For the client, it buys access to a team without the friction of scoping and invoicing every piece of work individually.

The problem is that retainers are only as good as the scope behind them. I have reviewed dozens of retainer agreements during agency turnarounds and acquisitions, and a significant proportion had scopes so vague they were essentially paying for availability rather than output. “Strategic counsel and communications support” is not a scope. It is an invitation for drift.

Well-structured retainers define deliverables, specify seniority of resource, include review mechanisms, and have clear escalation paths when scope changes. They also include a genuine commercial review at least annually, not just a creative or strategic one. The question “are we getting value from this retainer relative to what we are paying?” should be asked explicitly, not avoided because it feels awkward.

For specialist comms work, the retainer model is particularly common. Telecom public relations is a good example: the regulatory complexity, the volume of ongoing stakeholder management, and the need for rapid response capability all make a retained relationship more practical than project-by-project commissioning.

Commission Models: Where the Conflicts Live

The commission model has its roots in traditional advertising, where agencies would buy media on behalf of clients and retain a percentage, typically around 15%, as their fee. The media owner paid the commission, which meant the agency’s revenue was tied directly to the volume of media purchased.

That structure has evolved considerably, but commission-based compensation still exists, particularly in media buying, out-of-home, and some digital channels. The conflict of interest is structural: an agency earning commission on spend has a financial incentive to recommend more spend, not necessarily more effective spend.

I ran a paid search campaign for a music festival at lastminute.com that generated six figures of revenue within roughly 24 hours. It was not a complicated campaign. The targeting was tight, the offer was clear, and the timing was right. The point is that a well-structured campaign with modest spend can dramatically outperform a bloated one. Commission models do not reward that kind of efficiency. They reward volume.

That is not to say commission is always wrong. For clients who lack the internal capability to audit media buying, a commission arrangement with a trusted agency can be simpler to manage than a complex fee structure. But it requires transparency about what commission rates apply, and ideally an independent audit of media value periodically. Forrester’s work on forecasting and commercial accountability is a useful frame for thinking about how to hold external partners to measurable standards rather than relying on trust alone.

Project Fees: Clean Scope, Clear Accountability

Project-based pricing is exactly what it sounds like: a defined fee for a defined piece of work. A rebrand, a campaign launch, a PR programme for a product release, a crisis communications plan. The scope is agreed upfront, the fee is fixed (or fixed within a tolerance), and the engagement ends when the work is delivered.

Project fees work well when the scope is genuinely discrete and the client has a clear brief. They create accountability on both sides. The agency knows what it is being paid to deliver. The client knows what they are buying. There is less room for the kind of scope creep that quietly inflates retainer costs over time.

The challenge is that project fees require accurate scoping, and agencies are not always incentivised to scope conservatively. Underscoping to win the project and then managing overruns through change orders is a well-worn agency tactic. Clients who push back on change orders without understanding the original scope are often in a weak negotiating position.

Rebranding projects are a common example of where project fees are used and where scope management matters enormously. A rebranding checklist can help clients understand the full scope of what a rebrand actually involves before they agree a fee, so they are not surprised when the agency comes back with a change order for the internal communications programme that was apparently “not included.”

The same principle applies to large-scale rebranding in asset-heavy businesses. Fleet rebranding, for instance, involves production, logistics, and compliance considerations that go well beyond the creative work, and project fees need to account for all of it.

Performance-Based Pricing: The Model Everyone Wants and Few Get Right

Performance-based pricing ties some or all of the agency fee to measurable outcomes: leads generated, revenue driven, share of voice achieved, media coverage secured. In theory, it is the most commercially aligned model available. The agency only earns well if the client does well.

In practice, it is genuinely difficult to structure fairly, and both sides frequently end up frustrated.

The core problem is attribution. Marketing outcomes are rarely the product of a single agency’s work. A PR campaign that drives brand awareness contributes to a paid search conversion that gets attributed to the search agency. The PR agency argues it created the demand. The search agency argues it captured it. Both are right, and neither can be paid a full performance fee without double-counting the outcome.

I have seen performance models work well in two specific situations. First, where the agency has direct control over the entire conversion funnel, which is rare but possible in direct response digital work. Second, where performance is measured against a metric the agency genuinely influences, such as media coverage quality and volume for a PR firm, rather than downstream sales that depend on a dozen other variables.

Understanding what constitutes quality traffic versus volume is a useful starting point for any performance conversation with a digital agency. Volume metrics are easy to game. Quality metrics are harder to argue with.

Value-Based Pricing: The Model Most Agencies Are Not Ready For

Value-based pricing sets the fee based on the value delivered to the client, not the cost of inputs or the volume of activity. If a PR agency secures coverage that directly influences a funding round, the fee should reflect that value, not the number of hours spent pitching journalists.

It is a commercially mature model and, in principle, the most rational one. The problem is that it requires both sides to agree on what value means before the work starts, which is harder than it sounds. It also requires the client to be transparent about the commercial context, which many are not.

In practice, value-based pricing tends to work best in specialist, high-stakes engagements where the outcome is clear and the agency’s contribution is demonstrably central to it. Celebrity reputation management is a reasonable example: the commercial and personal stakes are high, the agency’s role is direct, and the value of a well-managed crisis versus a poorly managed one is not abstract. Family office reputation management operates similarly, where discretion, access, and outcome matter far more than activity metrics.

Most agencies resist value-based pricing not because they think it is unfair, but because it requires them to have a clear view of their own commercial value, which many have never had to articulate. Hourly rates and retainers are easier to defend. Value is harder to price when you have not done the work of understanding what you are actually worth.

Hybrid Models: How Most Sophisticated Agencies Actually Operate

The cleanest agency businesses I have seen do not rely on a single revenue model. They use a hybrid: a base retainer that covers ongoing strategic counsel and account management, project fees for discrete deliverables, and a performance component tied to metrics the agency genuinely controls. The proportions vary by client and by scope, but the principle is the same: each element of the fee is attached to something specific.

This approach also makes commercial reviews easier. You can look at each component separately and ask whether it is delivering. The retainer covers X. Is X being delivered? The project fee covered Y. Was Y delivered on time, on brief, and on budget? The performance component was tied to Z. Did Z move?

When I was growing an agency from 20 to 100 people, one of the disciplines we introduced was a quarterly commercial review of every client relationship, separate from the creative and strategic reviews. We looked at revenue per client, margin per client, and whether the scope we were delivering matched the fee we were charging. It was uncomfortable at first. It became essential. Several retainers were repriced. A few were ended. The ones that remained were healthier for it.

The same discipline applies to specialist agency work. Tech company rebranding success stories tend to share a common thread: clear commercial governance alongside the creative ambition. The agencies that delivered those rebrands were not just creatively strong. They were commercially structured in a way that kept the project on track.

What Clients Should Ask Before Signing an Agency Contract

Most clients focus on the creative work and the strategic pitch when evaluating an agency. The commercial model gets a fraction of the scrutiny it deserves. Here are the questions worth asking before you sign anything.

First: how does the agency make money from this engagement? Not the fee structure in the contract. How does the agency actually make money? Are there commissions, referral fees, or production markups that are not visible in the headline fee?

Second: who will actually work on the account? The people in the pitch room are rarely the people doing the day-to-day work. Ask specifically which senior resource is committed to your account, how many hours per month, and what happens when they leave.

Third: how is success defined and measured? If the agency cannot answer this question with specifics, the engagement will drift. MarketingProfs has covered the importance of grounding marketing activity in measurable outcomes across many formats, and the principle holds regardless of channel or model.

Fourth: what does the exit look like? Retainers with rolling notice periods of three months or less are reasonable. Longer lock-ins should come with clear performance milestones. You should not need a lawyer to exit a relationship that is not working.

Fifth: how does the agency handle scope creep? Ask for examples. A good agency will have a clear process. An agency that says “we are flexible” is telling you they will absorb overruns until they cannot, then invoice you for them.

The persuasion dynamics in agency pitches are worth understanding too. The structure of a compelling argument is something good agencies use instinctively in new business. Knowing how it works helps you evaluate what you are being sold versus what you are actually buying.

The Honest Version of Agency Economics

Agencies are businesses. They have payroll, rent, software costs, and the perennial challenge of managing utilisation across a team whose time is the product. A healthy agency margin is typically somewhere between 20% and 30% on revenue. Below that, the agency is under financial pressure that will eventually affect service quality. Above that, the client is probably overpaying.

When I was turning around a loss-making agency, the first thing I did was audit every client relationship against its actual margin. Several clients we thought of as anchor accounts were, on a fully loaded basis, either marginally profitable or loss-making. We had been subsidising them with the margins from other clients. That is not sustainable, and it is not honest.

Transparent pricing conversations are better for everyone. A client who understands that a retainer is priced at a certain level because of the seniority of resource committed to them will value that resource differently than one who just sees a monthly invoice. Agencies that hide their economics behind vague scopes and opaque fee structures are creating the conditions for a breakdown in trust.

Tools that help clients understand how their agency is performing, such as real-world case studies of how organisations have used data to improve outcomes, are worth exploring as a way of setting a baseline for what good looks like before the conversation about fees begins.

There is also a broader point here about measurement. Behavioural analytics tools can help clients understand what is actually happening with their audiences, which in turn gives them a more grounded basis for evaluating what their agency is delivering. The data is a perspective, not a verdict, but it is a more honest starting point than gut feel.

For more on how PR and communications agencies structure their work and where their commercial models intersect with strategy, the PR & Communications section of The Marketing Juice covers the full landscape, from crisis comms to sector-specific reputation management.

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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