For business owners and marketing managers, deciding where to invest your time and budget on social media can feel overwhelming. There is a multitude of platforms each claiming to offer the best route to growing your audience – but if you try to be everywhere, you risk spreading yourself thin and achieving very little.
Social media is about choosing the right place to create brand awareness, demonstrate value and develop a loyal community that can translate into real results for your business.
The good news? You do not need to be on every platform. The better news? This guide will help you choose the right one or two channels to suit your goals.
Start with Strategy, Not Platforms
Before diving into the specifics of each social network, it is essential to consider your wider marketing strategy. Social media doesn’t work as a solo operation. You need a marketing strategy that suits your brand and incorporates the right channels, including your website, PR and social media activity.
To make sure you’re on the right path, ask yourself a few critical questions:
- Are you aiming to raise brand awareness, generate leads or directly increase sales?
- Is your business primarily business-to-business (B2B) or business-to-consumer (B2C)?
- What kind of content can you realistically produce? Visual, video, written, live?
For example, a B2B consultancy with a small team may gain more from consistent, insight-led posts on LinkedIn than trying to launch a Reels campaign on Instagram. Equally, a boutique skincare brand with strong imagery may thrive on TikTok and Instagram but see little return from the more corporate (though increasingly more casual) environment of LinkedIn.
Ultimately, social media is about showing up where your audience is and matching the tone, format and expectations of that space.
Which Social Media Platform Has the Right Audience?
Choosing the right social media platform requires more than simply comparing user numbers. A platform may have a huge audience, but that reach means very little if its users are not the people your business needs to speak to, or if the content they expect is not something you can produce consistently.
Audience age, monthly reach and the amount of time people spend on each channel can all help build a clearer picture. These figures should not determine your strategy on their own, but they can help you narrow down where the strongest opportunities may lie.
Which Social Media Platforms Have the Largest UK Audiences?
YouTube and Facebook/Messenger have the largest monthly adult audiences in the UK, followed by Instagram. TikTok also offers considerable reach, while LinkedIn has a smaller but potentially more commercially focused audience.
Threads and Bluesky remain much smaller by comparison. However, that does not necessarily make them less valuable. Their focused communities may offer useful opportunities for brands with a strong point of view or a clearly defined niche.
Of course, a larger audience does not necessarily make a platform the right choice for your business. The content you can produce, the people you want to reach, their intent and the resources you have available should all shape your decision.
How Does the Audience Differ by Age?
The differences between the major platforms are perhaps less dramatic than many businesses might expect. TikTok has the greatest proportion of visitors aged 18 to 34 among the platforms compared here, but adults aged 35 to 54 still account for a substantial part of its audience.
Instagram also attracts users across all three age groups rather than being used exclusively by younger adults. Facebook/Messenger and YouTube have the highest proportions of visitors aged 55 and over, making them particularly relevant for businesses trying to reach a broader or older audience.
LinkedIn’s audience is relatively evenly distributed, with its largest group aged 35 to 54. That supports its position as an important platform for reaching established professionals and business decision-makers.
These figures show how each platform’s UK adult audience is split by age group. Totals may not always add up to exactly 100% due to rounding.
Where Do Users Spend the Most Time?
Audience size tells us how many people a platform can potentially reach, but time spent provides another indication of how strongly it holds their attention.
YouTube and Facebook/Messenger lead comfortably on average daily time spent, while TikTok and Instagram also command significant attention. LinkedIn users spend far less time on the platform each day, but that should not be interpreted as evidence that it is ineffective. People often visit LinkedIn with a more specific professional purpose, so a shorter session may still carry considerable commercial value.
These figures show the average time UK adult visitors spend on each platform per day, rather than an average across the entire UK adult population.
Taken together, the figures reinforce an important point: there is no single “best” social media platform. The right choice depends on who you want to reach, what you want them to do and whether you can produce the type of content that works naturally on that channel.
Data source: Ofcom, Online Nation 2025, using Ipsos iris Online Audience Measurement Service, May 2025. UK internet users aged 18+. Figures cover smartphones, tablets and computers; television sets and smart displays are excluded. Totals may differ slightly due to rounding.
LinkedIn: The B2B Powerhouse
LinkedIn has solidified its place as the leading platform for B2B marketing and networking in general.
Once seen primarily as a recruitment tool, it has evolved into a hub for professional content, knowledge sharing and industry networking. For B2B companies, it remains one of the few platforms where organic reach is still possible without paid spend (though we would recommend a LinkedIn Ad campaign if you’re in the B2B space), particularly when personal profiles are used to drive engagement.
LinkedIn’s algorithm favours original content that sparks discussion. Business leaders and team members who post regularly and offer genuine perspectives can attract visibility that far exceeds what a brand page might achieve on its own. Thought leadership content is huge. Balancing insight with authenticity through short videos, opinion pieces and carousel posts can perform extremely well, particularly when supported by a considered content creation strategy.
For smaller businesses, LinkedIn represents a significant opportunity. You may not have a huge marketing budget, but you do have knowledgeable people, and that is exactly what LinkedIn rewards.
Instagram: Media Rich & Vital for B2C
Instagram remains a core platform for B2C brands, especially lifestyle brands with a product to promote.
Although the platform has undergone significant changes over the past few years, particularly with the rise of Reels and the gradual decline of image posts in the algorithm, it is still one of the most visually engaging spaces to build a brand.
Instagram’s strength lies in short-form video content and storytelling. Reels are the primary driver of reach, but carousel posts continue to perform well when used for educational content or product spotlights. For your business, this means investing in professionally designed visual content that reflects the quality and values of your brand without necessarily requiring an agency-grade production budget.
One major advantage for businesses is the platform’s built-in shopping tools. For those in retail, beauty, wellness or food and drink, the ability to integrate product links directly into posts or Stories streamlines the buyer journey.
The audience on Instagram tends to respond well to personal touches too. Founder-led stories, behind-the-scenes content and customer-generated media can all help build trust and community.
TikTok: Everyone’s On It (yes even grandparents)
There was a time when TikTok was considered the domain of Gen Z and viral dance trends. While that element of the channel certainly still exists, the platform has matured significantly.
It is one of the most effective marketing tools available, especially for B2C businesses willing to experiment.
Its recommendation algorithm is exceptionally powerful, giving even small accounts the chance to reach large audiences if their content strikes the right chord. What performs well is content that feels authentic and entertaining, not overly polished or salesy. A local bakery sharing how they make their sourdough can rack up tens of thousands of views overnight, simply because it taps into curiosity and storytelling.
Of course, not every business needs to be on TikTok. It requires regular video content, creative thinking and a good sense of the platform’s culture. But for brands that can commit to publishing content regularly, the return on engagement and reach can be considerable.
Facebook: An Oldie But Goodie
Facebook may not be the trendiest platform, but it still holds relevance, particularly for businesses targeting local communities or older demographics.
While organic reach on Facebook has declined steeply, its value now lies in targeted advertising, community groups and events. It’s also, increasingly become a place that people go to get customer support.
For local service providers, hospitality venues or community-focused organisations, Facebook can still offer strong returns. Paid ads are relatively low-cost and offer precise targeting, while group participation can help build connections with hyper-local audiences. Businesses promoting workshops, events or regular activities often find the Events feature and Messenger integrations useful too.
However, if your target market skews younger, or if your brand relies heavily on visual content, it may not be the most efficient use of your time. Facebook should not be your primary platform unless it directly aligns with your customer base and content type.
YouTube and Shorts: Opportunity For Long-Term Return
YouTube remains the most powerful platform for content with long-term return. It combines entertainment, education and search functionality in one place.
For businesses with the capacity to produce helpful videos, whether product demonstrations, explainers or interviews, YouTube offers long-tail value. A well-made video can continue to generate views and leads for months or even years.
In addition to long-form content, YouTube Shorts has become a serious contender in the short-form space. Shorts can help introduce your channel to new audiences and increase subscriber growth. For small businesses already investing in video, repurposing this content into Shorts is a time-efficient way to extend its reach.
Success on YouTube often requires consistency, but it can be one of the most rewarding platforms in terms of both engagement and SEO benefits. Videos hosted on YouTube frequently appear in Google search results, giving your brand additional exposure beyond the platform itself.
Threads, Bluesky and Substack: The Community-First Alternatives
Meta’s text-based platform Threads has moved past its early, uncertain phase and found a genuine niche. It feels like a blend of the old Twitter and Instagram Stories – conversational, reactive and more personal – and it now has an established, if smaller, base of users looking for quick engagement and trend commentary.
Event organisers, journalists, creative agencies and fast-moving consumer brands are among those getting the most value from it.
Alongside Threads, two other platforms are worth watching for a different reason: Bluesky and Substack. Neither is a mass-reach play. Both work better for brands and individuals building a direct, ongoing relationship with a smaller, more engaged audience – longer-form writing on Substack, more conversational posting on Bluesky. If your business relies on a loyal community rather than broad discovery, these are worth testing before committing significant resource.
X (Formerly Twitter): Fading Out
X has struggled to maintain the broad relevance it once had. Shifting moderation policies and a changing advertiser base have left the platform in a less predictable state than it once occupied, and for many businesses, the effort required to build a presence has stopped paying off.
That said, there are still scenarios where X remains useful. Live events and tech announcements can still benefit from its real-time nature, while an established presence may also support your crisis communications when information needs to be shared quickly.
If your brand is already active on X and sees consistent engagement, there is no need to abandon it. But for those starting from scratch, it is hard to make the case that it deserves priority in your strategy.
Where AI Fits In
AI now sits behind a large share of social media activity, from drafting captions and testing variations to shaping what platform algorithms actually surface. Used well, it can speed up brainstorming, help you test different hooks or formats, and take some of the grunt work out of scheduling and reporting.
It is worth using with care, though. Audiences are increasingly good at spotting content that feels generic or machine-written, and that can do more damage to trust than it saves in time. The most effective approach is to treat AI as a starting point — a way to get past a blank page or generate options — with a human doing the final edit before anything goes out under your brand’s name.
This connects to a wider shift: social platforms are increasingly functioning as search engines in their own right, with users searching directly within apps for recommendations, reviews and how-to content rather than starting on Google. Writing captions and video content with this in mind, using the language your audience would actually search for, is becoming an important part of a wider search engine optimisation strategy.
Focus Your Efforts, Measure Your Results
It is tempting to view social media as a box to tick, posting for the sake of visibility. A considered approach to social media management can help you focus on the channels that align with your goals, audience and capacity to produce content.
Being strategic means knowing where your audience spends their time and what kind of content resonates with them. It also means evaluating performance regularly and being willing to adjust your approach. Social media is never static, and what works today might not work in six months.
There is also a growing case for investing in community, not just reach. Responding well, nurturing repeat engagement and building a smaller group of genuinely invested followers is proving more valuable, for many businesses, than chasing new eyes with every post.
Use platform analytics to understand what is driving engagement. Look beyond vanity metrics and focus on saves, shares, website clicks and time viewed. These are better indicators of whether your content is helping move potential customers through the buying journey.
Take the time to evaluate what your brand can sustain and remember the key is alignment – between platform, audience and purpose.
