How Do I Identify My Market Research Audience?

You know you need to speak to consumers in the UK. But then you look at the size of the audience.

According to the Office for National Statistics, the UK had an estimated 69.3 million people living here as of mid-2024. So how do you narrow that down to the handful of people who can actually answer your research questions?

That narrowing-down process is one of the most important and often underestimated parts of any research project. Before you choose a methodology, write a screener or start recruitment, you need to be clear on exactly who you need to hear from.

Because market research is only as good as the people taking part.

Speak to the wrong audience and your findings can quickly become unreliable, no matter how well-designed the methodology or how experienced the moderator. But when you speak to the right people, you give your research the best possible chance of producing insight that is useful, relevant and commercially meaningful.

So, how do you identify your market research audience?

Let's walk through it.

What Is a Market Research Audience?

A market research audience is the specific group of people whose opinions, behaviours, or experiences you need to understand in order to answer your research questions.

In simple terms, it’s the group of people best placed to help you learn what you need to know.

That might sound obvious, but it’s worth being precise about because a research audience isn’t always the same as a target customer.

Your target customer is usually the person you want to sell to, influence or communicate with. Your market research audience should be defined by the insights you’re seeking, and what you’re trying to learn.

For example, if you want to understand why people are leaving your subscription service, your audience might be lapsed customers rather than loyal ones. If you’re exploring a new product category, you might need to speak to people who have never heard of your brand. And if you’re running audience research across different generations, recruiting parents will look very different to recruiting teenagers.

The point is simple: your audience follows your objectives.

How to Identify the Right Market Research Audience

1. Start with your research objectives

The clearest route to defining your market research audience is to go back to the question you're actually trying to answer.

If your objective is:

"We want to understand why Millennial women are leaving our subscription service."

Then your audience is likely to be Millennial women who have recently cancelled.

If your objective is:

“We want to understand how parents choose after-school snacks.”

Then your audience might not simply be “parents”. You may need parents of primary-school-aged children who buy snacks weekly and are responsible for most household food decisions.

A broad objective creates a broad audience. A clear objective helps you work out exactly who you need to speak to.

So before you think about recruitment, spend time sharpening the research question. What decision does this research need to support? What do you need to understand? Whose experiences are most relevant?

Once that’s clear, the audience criteria usually become much easier to define.

2. Define your must-have criteria

Once you know what you’re trying to learn, you can start building a profile of who you need to speak to.

Audience criteria usually fall into three areas:

• Demographics: age, gender, location, household income, life stage
• Behaviours: how often they buy, which products they use, how digitally confident they are, where they shop or how they make decisions
• Attitudes or experiences: whether they hold a particular view, have been through a specific life event, or are a current, lapsed or non-user

The key is knowing what is essential and what is just nice to have.

This is where research briefs can quickly become overcomplicated. It’s tempting to add every possible detail: age, location, income, family status, shopping habits, brand awareness, media consumption, lifestyle preferences, and so on.

Some of that may be important. Some of it may not.

3. Think about sample size and criteria

Qualitative research doesn't need hundreds of people. It needs the right people.

A well-recruited focus group of eight can generate far more useful insight than a survey of 800 if the participants aren't genuinely relevant.

So this stage is about more than deciding on “how many”. It’s about thinking carefully about the shape of your sample.

Ask yourself:

• Do you need a broad mix of perspectives?
• Do you need to compare different segments?
• Are you looking for similarities, differences, or both?
• Do you need separate groups for current customers, lapsed customers and non-users?
• Would participants feel comfortable speaking openly together, or would one-to-one interviews work better?

If you're working with a specialist group, it's also worth reading up on how to recruit niche audiences for market research before you finalise your brief.

4. Sense-check feasibility early

This is the step that catches a lot of people out.

You might have a clear audience definition and a strong research objective, but the question still needs to be asked: can we actually recruit these people?

Some audiences are genuinely harder to reach. People with specific medical conditions, senior professionals in niche industries, young people, vulnerable consumers, high-net-worth individuals, or people with very specific behaviours may take more time, more resource and a more tailored recruitment approach.

Feasibility isn’t just about whether the audience exists. It’s about whether they can be found, contacted, screened, incentivised appropriately and supported to take part within the timescale.

This is where an experienced fieldwork partner can make a real difference. They can help you understand whether your criteria are realistic, where the recruitment challenges may be, and whether the methodology needs adapting.

We cover this in more detail in our guide to recruiting hard-to-reach audiences for qualitative market research.

5. Build a screener that does the work

A market research screener is what turns your audience definition into a recruitment tool.

It should test for real behaviours and experiences, not just demographics.

A useful sense-check: if someone answered every question the way you'd want them to, would they genuinely be the right person for this research? If the answer is "not necessarily" – your screener needs another look.

Poorly designed screeners are one of the most common causes of weak qualitative data. Ask the right questions in the right way, and your recruitment will do a lot of the hard work before the research even begins.

Want to get it right? Check out our 5 Screener Tips to find the Right Participants.

Common Mistakes When Defining a Market Research Audience

Defining your audience sounds straightforward. But in practice, a few common mistakes can make research harder to recruit, harder to run, and less useful at the end.

Defining the audience too broadly

“UK consumers aged 18–65” might be suitable for sometimes, but it’s often too broad for qualitative research.

The more specific your research question, the more specific your audience usually needs to be.

If you’re trying to understand how people choose skincare products, for example, you may need to know whether they buy premium or budget products, whether they shop online or in-store, whether they have specific skin concerns, and whether they are loyal to brands or open to switching.

Those details matter because they shape the conversation.

Adding too many nice-to-have criteria

There’s a balance to strike.

Too few criteria and your audience may not be relevant enough. Too many and recruitment becomes unnecessarily difficult and more like a quantative data survey!

If a requirement won’t change the insight, it’s worth challenging whether it needs to be included.

Only thinking in demographics

Age, gender and location can all be important. But they rarely tell the whole story.

In many projects, behaviour is far more useful.

What do people buy? How often? Who influences the decision? What have they tried before? What have they rejected? What do they believe? What frustrates them?

Two people may look very similar on paper but behave completely differently in real life.

That’s why good audience definition often goes beyond who people are and looks closely at what they do.

Leaving feasibility too late

It’s easy to define the ideal audience in a brief. It’s harder to recruit them in the real world.

Some audiences need longer lead times, different incentives, more careful screening, or a more targeted recruitment strategy. Others may need additional safeguarding, accessibility support or offline recruitment methods.

Sense-checking feasibility early helps avoid delays, compromises and last-minute changes later in the project.

Different Audiences Need Different Recruitment Approaches

One of the most important things to understand about defining a market research audience is that the “who” shapes the “how”.

Different groups engage with research in different ways. What works beautifully for one audience may fall flat with another.

Here’s a quick snapshot of what to consider across different generations:

This is why audience definition and recruitment planning need to happen together.

Who you want to speak to will often shape how you need to reach them, how you communicate with them, and how you support them through the research process.

Where Do You Actually Find Your Market Research Audience?

Defining your audience is one thing. Finding them is another. In practice, participant recruitment draws on a mix of approaches – and the right combination depends on who you're looking for.

Opt-in research communities

For many consumer projects, a strong opt-in research community is a reliable starting point.

At Angelfish, our Angelfish Opinions community gives us access to real UK participants who have actively chosen to take part in research. That matters, because engaged participants tend to give more thoughtful, useful contributions.

An opt-in community can be especially helpful when you need to recruit across different ages, regions, life stages, behaviours or household types.

Targeted social media recruitment

For harder-to-reach audiences, or when you need to go beyond an existing community, targeted social media activity can be really effective.

Paid and organic content across platforms like Meta lets you reach people based on specific interests, behaviours, and demographics – including groups that don't typically show up in traditional sampling pools.

Offline and community-based methods

Not every audience is best reached online.

Some people spend limited time on digital platforms, have lower digital confidence, or are more likely to engage through trusted local networks.

For these groups, community-based outreach, local organisations, charities, support groups or offline referrals can be essential. This can be particularly important when researching older audiences, people experiencing vulnerabilities, or groups who may not respond to standard online recruitment.

Referrals and snowball sampling

For niche or specialist audiences, referrals from existing participants can be surprisingly powerful.

When someone is genuinely engaged in research, they may know others who are equally relevant. This can help reach groups that are smaller, more private, or harder to identify through broader recruitment methods.

Why Getting Your Market Research Audience Right Matters

Audience definition can feel like an early admin task, but it’s the decision everything else rests on.

The strongest methodology can still fall short if the people taking part aren’t relevant, engaged or comfortable sharing their experiences.

And the opposite is also true. When you speak to the right people, even a simple research design can uncover insight that genuinely changes how a business thinks.

That’s why recruitment quality matters so much.

It’s not just about filling spaces. It’s about finding people who can contribute properly — people who understand the topic, have the right experience, and feel able to share their views honestly.

This is often what clients notice most: not just that participants meet the criteria, but that they can genuinely contribute to the research.

“The respondents were insightful, articulate, and from diverse backgrounds. Angelfish is our go-to vendor for any consumer or premium consumer work in the UK.”

Ready to Find Your Market Research Audience?

Back to that 69.3 million figure.

It can feel daunting at first. But with a clear audience definition, the right criteria, and a recruitment partner who knows what they're doing, you can get from that overwhelming number to the specific people whose opinions will actually make a difference to your research.

At Angelfish Fieldwork, we a brilliant opt-in community who are ready to take part in research – across every generation, life stage, and background. See who we have access to here.

If you're ready to talk through your next project, get in touch today and we'll help you figure out who you need to speak to – and how to find them.

Or explore our audience page to find out more about recruiting specific age groups for qualitative research.