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Insights3 October 2026 · 10 min read

How to choose a marketing agency: the questions that actually matter

Choosing a marketing agency is difficult because almost every agency can make itself sound useful.

The short answer

Strategy. Content. Creative. Digital. Growth. Performance. Brand. Campaigns.

The service list rarely tells you whether they are actually the right partner.

A better way to choose is to look at four things:

Do they understand the problem?

Can they actually deliver what they are proposing?

Can they show evidence?

And can they explain how you will know whether it is working?

That matters far more than how impressive the pitch deck looks.

Start with the problem, not the agency

Before looking for an agency, get clearer on why you think you need one.

Because:

“We need marketing.”

is not really a brief.

Maybe the business has an awareness problem.

Maybe plenty of people know you exist but the website does not convert.

Maybe the internal marketing team has good ideas but not enough production capacity.

Maybe you are launching something and need a campaign.

Maybe the brand is unclear.

Maybe sales need better content.

Maybe your website, content and customer journey feel disconnected.

Those are very different problems.

And they may require very different partners.

The first useful question is therefore not:

“Which agency should we use?”

It is:

“What are we actually trying to change?”

If you cannot answer that perfectly, that is fine.

A good agency should help you work it out.

But they should not jump straight to selling the thing they happen to make.

10 questions to ask a marketing agency before you hire them

1. What do you think the actual problem is?

This is probably the most revealing question you can ask.

Explain what is happening in the business and ask the agency what they think is getting in the way.

You are not looking for a perfect diagnosis after one meeting.

You are looking at how they think.

Do they immediately prescribe:

“You need more social media.”

Or do they ask about:

  • customers
  • sales
  • current activity
  • website performance
  • competitors
  • internal capability
  • what has already been tried
  • where enquiries currently come from
  • what success means

An agency that sells before it diagnoses will probably keep doing that after you hire them.

2. Who will actually work on our account?

Find out who you are buying.

Who leads the strategy?

Who produces the work?

Who is your main contact?

How senior are the people involved?

Will the team from the pitch still be involved after the contract is signed?

Do they use freelancers or specialist partners?

There is nothing wrong with that.

But you should know.

A polished pitch delivered by senior people followed by months of dealing with someone you never met is a very different proposition from a genuinely senior-led relationship.

3. What would you not recommend we do?

This is a useful test.

An agency should be able to say no.

If every service they sell somehow appears in your proposal, be cautious.

You may genuinely need several things.

But if the agency cannot explain what is unnecessary, lower priority or better handled internally, you are not really getting strategic advice.

You are getting a menu.

A good partner should be able to say:

“I wouldn’t spend money there yet.”

That is often more valuable than another idea.

4. Can you show us relevant proof?

Client logos are not proof on their own.

Ask what the agency actually did.

What was the problem?

What work did they deliver?

What changed afterwards?

Did they create the strategy, or just execute somebody else’s?

Was it a one-off campaign or an ongoing relationship?

Relevant does not necessarily mean identical.

If you are a hotel, the agency does not need twenty hotel clients.

But if they claim to understand multi-location hospitality, content production or customer journeys, they should be able to demonstrate similar problems they have solved.

Look for substance behind the logo wall.

5. What exactly is included in the scope?

Marketing proposals become difficult when one side thinks it is buying an outcome and the other thinks it is selling a list of deliverables.

Get specific.

If the proposal says:

“Content strategy and social support”

what does that actually mean?

Does it include:

  • strategy
  • planning
  • shoot days
  • photography
  • video
  • editing
  • design
  • copy
  • posting
  • community management
  • reporting
  • campaign ideas
  • website updates

You do not need everything.

You just need clarity.

Also ask what is not included.

That avoids discovering halfway through that something everyone assumed was part of the relationship actually costs extra.

6. What do you need from us?

Agencies do not operate in a vacuum.

Find out what they need from your team.

That could include:

  • access to analytics
  • product information
  • internal expertise
  • sign-off
  • staff availability
  • brand assets
  • sales data
  • customer insight
  • existing research
  • access to platforms

If the agency needs a two-day turnaround on every approval but your business takes three weeks, the relationship is going to struggle.

A good proposal should account for how your business actually works.

Not just what the agency would ideally like.

7. How will we know whether this is working?

Reporting is not the same as measurement.

You can receive a beautiful monthly report with thousands of impressions and still have no idea whether anything useful is happening.

Ask:

What are we trying to improve?

That may involve:

  • qualified enquiries
  • sales
  • conversion rate
  • repeat customers
  • email sign-ups
  • direct traffic
  • branded search
  • content engagement
  • campaign response
  • sales-team usage
  • event attendance
  • recruitment applications

Not every marketing activity produces an immediate lead.

Brand and content often influence the journey before the final conversion.

That is fine.

But the agency should still be able to explain what it is measuring and why.

If every answer comes back to impressions and follower growth, ask more questions.

8. How will we actually work together?

The work can be brilliant and the relationship can still be painful.

Ask:

  • how often will we speak?
  • how is work planned?
  • where do approvals happen?
  • who manages deadlines?
  • how far ahead is content planned?
  • how are urgent requests handled?
  • when do we review performance?
  • how are new ideas introduced?

You are trying to understand what a normal month actually feels like.

Because “collaborative partnership” can mean almost anything.

9. What happens when the plan isn't working?

Marketing involves uncertainty.

Not every campaign lands.

Not every piece of content performs.

Not every idea deserves another month of spend.

Ask what the agency does when something is not working.

Do they:

  • defend the original idea indefinitely?
  • blame the algorithm?
  • keep delivering the same outputs?
  • or look at the evidence and change direction?

You want a partner that is attached to solving the problem.

Not attached to proving that its first idea was right.

10. What happens if we want to leave?

This sounds pessimistic.

It is actually sensible procurement.

Understand:

  • notice periods
  • minimum terms
  • ownership of creative files
  • access to accounts
  • website ownership
  • content ownership
  • licences
  • data
  • documentation
  • handover process

A good agency relationship should not depend on making it difficult for you to leave.

Beware the “full-service” trap

A broad agency can be useful.

It can be genuinely valuable to have strategy, content, video, design, websites and technology working together.

But breadth is not automatically a benefit.

If you need specialist paid search, a brilliant PPC agency may be a much better choice than a broad creative agency that happens to list PPC halfway down its services page.

If you need one film, you might need a production company.

If you need an internal CRM rebuilt, you may need a specialist developer.

If you need your positioning, content and website to work together, a broader team might make more sense.

The question is not:

“How many things does this agency do?”

It is:

“Does its capability match the problem we need solving?”

More services do not automatically mean more value.

How to judge agency case studies properly

A useful case study should help you understand three things.

The situation
What was happening before the agency got involved?
The work
What did they actually do?
The outcome
What changed?

Sometimes that outcome is measurable revenue.

Sometimes it is a functioning new website.

Sometimes it is a successful event.

Sometimes it is a content system that allowed a small team to produce more consistently.

Be wary of vanity metrics without context.

“2 million views” might be extraordinary.

Or it might be commercially irrelevant.

The number only matters if you understand what the work was trying to achieve.

How should a marketing agency talk about measurement?

They should be comfortable separating activity from outcome.

Activity might be:

  • posts published
  • videos produced
  • emails sent
  • campaigns launched

Performance might be:

  • reach
  • engagement
  • website visits
  • watch time
  • click-through rate

Commercial outcomes might be:

  • enquiries
  • sales
  • bookings
  • applications
  • repeat purchase
  • pipeline

All three can matter.

But they are not interchangeable.

If the objective is more qualified enquiries, producing twelve videos is not success by itself.

It is delivery.

You then need to understand whether those videos helped move the business towards the outcome.

That does not mean every post needs a direct revenue attribution.

It means the reporting should connect back to the reason the work exists.

Retainer, project or internal hire?

An agency is not always the right model.

A project makes sense when:

There is a clear piece of work with a beginning and end.

For example:

  • website
  • campaign
  • brand work
  • launch
  • film
  • event

A retainer makes sense when:

The need is ongoing.

For example:

  • regular content production
  • campaign support
  • ongoing creative
  • marketing leadership
  • recurring optimisation

Hiring internally makes sense when:

There is enough consistent work to justify bringing the capability inside the business and you need somebody embedded day to day.

Often the answer is a combination.

An internal marketing lead working with an external production or digital team can be much stronger than expecting either side to do everything.

Choose the model around the actual requirement.

Marketing agency red flags

None of these automatically mean an agency is bad.

But they deserve questions.

  • They recommend the solution before understanding the problem.
  • You cannot work out who will actually deliver the work.
  • The proposal is vague about deliverables and exclusions.
  • Everything is reported, but very little is learned from the reporting.
  • They guarantee commercial results they cannot realistically control.
  • The contract locks you in for a long time without a clear reason.
  • Their explanation is mostly jargon.
  • They cannot explain why they are recommending one channel over another.
  • They never tell you something is a bad idea.

A good partner should make things clearer. Not more complicated.

What should a good first meeting feel like?

You should probably talk more than they do.

They should want to understand:

  • what changed in the business
  • customers
  • products or services
  • competitors
  • sales process
  • existing marketing
  • current performance
  • internal team
  • previous agencies
  • frustrations
  • opportunities
  • commercial priorities

You should leave the meeting feeling that somebody understood the business better.

Not simply that you watched a strong sales presentation.

A simple marketing agency comparison scorecard

Give each agency a score from 1–5.

Marketing agency comparison scorecard
AreaScore
Understanding of our business/5
Strategic clarity/5
Relevant proof/5
Quality of delivery team/5
Clarity of scope/5
Measurement approach/5
Communication/​process/5
Flexibility and ownership/5
Commercial fit/5
Confidence and trust/5

You do not have to choose whoever gets the highest number.

The point is to force yourself to compare the agencies against the same things.

Instead of being swayed by whichever pitch you happened to enjoy most.

When Collective probably isn't the right agency

We should be clear about this too.

If your primary need is a specialist PPC programme, an SEO retainer or large-scale paid media buying, we would rather point you towards a team that lives and breathes that discipline than pretend it is our core service.

If you simply want the cheapest possible production supplier to execute a fixed brief, there will be businesses structured more efficiently for that too.

Where we tend to be more useful is when the problem cuts across things.

  • Content and the website.
  • Brand and digital experience.
  • Creative and systems.
  • Marketing strategy and the actual production required to deliver it.

That is where having different capabilities under one roof starts becoming useful.

But the principle applies whichever agency you choose:

Buy the capability the problem actually requires.

You can see more about Collective and how we work, or our Liverpool agency team if you want the local picture.

Common Questions

How many marketing agencies should I speak to?

Usually two to four serious options is enough. Speaking to too many agencies can make the decision harder rather than better. Shortlist teams that appear capable of solving the problem and ask them broadly the same core questions.

What should I look for in a marketing agency?

Look for evidence that they understand your business, a clear explanation of what they would actually do, relevant proof, a strong delivery team, sensible measurement and a way of working that fits your organisation.

Should I hire a specialist or full-service marketing agency?

It depends on the problem. If you have one highly specialised need, a specialist may be stronger. If several areas need to work together, a broader agency can reduce fragmentation and provide more joined-up thinking.

How do marketing agencies charge?

Common models include fixed project fees, monthly retainers and day rates. Some also charge media fees or performance-related fees. The important thing is understanding exactly what the fee covers and what sits outside the scope.

Should I choose an agency with experience in my industry?

Industry experience can be useful because the agency may already understand the market and customer. But it should not be the only factor. Relevant problem-solving experience and the quality of their thinking may matter more than having worked with an identical company.

What should a marketing agency report on?

Reporting should reflect the objective. That may include content or campaign activity, audience behaviour, traffic, enquiries, sales or other commercial actions. The useful question is whether the reporting helps you make better decisions.

When should I hire a marketer in-house instead of using an agency?

Hiring internally can make sense when there is enough ongoing work to justify a full-time role and the business benefits from somebody embedded every day. Agencies are often more useful when you need a broader mix of specialist skills without hiring an entire team.

Tell us what's getting in the way.

You do not need to arrive knowing which service you need. Start with the problem. What is not working? What are you trying to change? Where is the business getting stuck? That is a much better place to begin than choosing something from a list of agency services.