Your Guide to the Best Social Media Agency in the UK 2025

Top UK Social Media Agencies 

Social media is a powerful marketing channel that delivers measurable business results when handled strategically. In 2024, the UK’s digital advertising investment rose to £38.07 billion (up 9.4 % year over year), and social media accounts for £9.02 billion of that spend (We Are Social). With over 56.2 million active social media users spending nearly 2 hours daily on social platforms (Statista), brands need partners who can cut through the noise, reach communities, and drive ROI.

Choosing one of the top social media marketing agencies in the UK ensures your brand not only meets but exceeds its social potential. This guide highlights the best social media marketing agencies serving UK businesses in 2025.

Quick Summary:

• ✅ The UK’s social media advertising investment rose to £9.02 billion in 2024, with influencer marketing accounting for around £930 million (We Are Social).
• ✅ There are 54.8 million social media user identities in the UK and adults spend about 1 hour 37 minutes per day on social platforms (We Are Social).
• ✅ Choosing a social media agency requires checking proven results, platform expertise, creative capability and alignment with your brand values.
• ✅ Our Own Brand (OOB) leads this list as a fully integrated social partner, offering strategy, creative content, paid media and influencer marketing for UK brands.
• ✅ The agencies featured below are recognised for their strong track records and specialisms, from community‑building to performance video and influencer‑led campaigns.

TL;DR: The Top 5 Social Media Agencies in the UK 2025

• Our Own Brand (OOB) – The Trendsetters
  Based in London, OOB creates viral campaigns and authentic brand engagement through a trend-led, human-centric approach to social media. Known for thumb-stopping content, they combine social media expertise with best-in-class branding and production to achieve maximum impact on social media. They are also finalists in the UK Social Media Awards 2025.
• OK COOL – The Innovators
  OG partner to TikTok, this leading global agency keeps its finger on the pulse of the next social trends, delivering avant-garde campaigns that spark conversations and resonate with audiences.
• We Are Social – The Global Titans
  With a team of over 1,000 creatives worldwide, We Are Social combines cultural intelligence and storytelling for high-profile clients, including Netflix and Adidas.
• Born Social – The Future-Forward Creatives
  A B Corp-certified agency, Born Social focuses on purpose-driven campaigns that align brands with social and environmental impact.
• Social Chain – The Viral Visionaries
  Known for trend-savvy campaigns, Social Chain excels at creating viral content and managing over 80 million followers across platforms.

Methodology & Selection Criteria

To curate this list, we conducted an in-depth assessment of leading UK agencies using a rigorous, multi-factor evaluation process designed to measure real performance, creativity, and credibility.

1. Client Outcomes & Proven Impact

We prioritised agencies that deliver measurable results. Each was assessed based on verified client reviews (from sources like Clutch and The Manifest), published case studies, testimonials, and clear evidence of ROI, engagement growth, or campaign success.

2. Breadth of Services

Agencies were evaluated on their ability to execute across key disciplines, including organic social, paid media, influencer marketing, content production, and social commerce, ensuring versatility and full-funnel capability.

3. Industry Reputation & Authority

We analysed external validation factors such as industry awards, press coverage, platform partnerships (e.g., Meta Business Partner, TikTok Marketing Partner), and recognised certifications. Inclusion in respected directories like DesignRush and Agency Spotter further supported credibility.

4. Culture, Transparency & Client Alignment

Beyond results, we looked for agencies that champion clear communication, transparent pricing, and strong cultural alignment with their clients’ brand values – key indicators of long-term partnership success.

5. Independent Verification & Online Presence

We reviewed each agency’s digital footprint, including their website content, social media activity, award nominations, and client portfolios, ensuring consistency between claims and outcomes.

What Makes a Top Social Media Marketing Agency?

With so many “experts” in the mix, finding the right social media agency can feel like searching for a needle in a hashtag stack. But the best agencies don’t just post good content, they deliver real impact. So, what separates the good from the game-changing?

1. Proven Results That Speak for Themselves

Top agencies don’t tell – they show. They back up creativity with measurable outcomes: stronger engagement, loyal communities, and a clear return on investment. Look for detailed case studies, client testimonials, and tangible metrics that prove growth, not just vanity numbers.

2. Platform-Level Expertise

From TikTok trends to LinkedIn leadership posts, a top agency knows the nuances of each platform, and how to make them work for your brand. Certifications or partnerships with Meta, Google, or TikTok often signal a team that’s genuinely plugged in and ahead of the curve.

3. Next-Level Creative

The best social media marketing agencies know what’s trending inside out. They’re culturally fluent, socially native, and creatively fearless. Expect ideas that feel fresh, bold, and built to break through the noise, whether it’s a lo-fi UGC reel or a cinematic brand film.

4. Seamless Communication & Cultural Fit

Great partnerships feel effortless. Top agencies become an extension of your team: transparent, proactive, and easy to work with. They understand your brand’s values, your tone of voice, and your audience’s world, ensuring every piece of content hits the right note.

5. Relationships That Last

Strong retention rates aren’t luck. They’re proof that the agency consistently delivers value, meeting goals and expectations. A team that’s kept clients for years is a team that knows how to evolve with them, and stay invested in their success.

6. Always Going the Extra Mile

Execution is the baseline. The best agencies think ahead, spot new opportunities, and push creative and strategic boundaries without being asked. They live and breathe social, so your brand is always one step ahead of the algorithm.

💡 The Bottom Line:
When you find the right agency, it just clicks. They get your brand from day one, know how to make it grow, and use creativity and data to prove it.

Benefits of Hiring a Social Media Agency in the UK

For businesses navigating the digital landscape, partnering with one of the top social media agencies in the UK offers plentiful advantages:

• 💡 Access Specialised Expertise: Social media is ever-evolving, and agencies bring focused knowledge, creative expertise and proven strategies that deliver. They do the hard work so you don’t have to!
• ✨ Stay Ahead of Trends: Agencies have their fingers on the pulse of the latest algorithm changes and social media updates, keeping your brand ahead of the curve.
• ⏰ Save Time and Resources: Free yourself from the complexities of managing social platforms so you can focus on growing your business.
• 🔮 Creative Solutions That Shine: With fresh ideas and innovative content, agencies craft strategies that help your brand stand out in a crowded digital space.
• 🚀Data-Driven Results: Advanced tools and analytics allow agencies to measure performance, refine strategies and ensure your campaigns deliver.
• 📈 Scalable Strategies: Whether you’re launching a new product or expanding into new markets, agencies offer flexibility to scale efforts based on your unique needs.

The Top 5 Social Media Agencies in the UK 2025

1. Our Own Brand (OOB) – The Trendsetters 🪐

Born in 2018, OOB is an award-winning social-first creative agency. They specialise in all aspects of social media marketing, branding, and production. Through a trend-led, humanistic approach to social media, they deliver viral, thumb-stopping campaigns, content and authentic brand engagement. They combine social media expertise with best-in-class branding and production to create maximum impact. OOB truly understands how a brand should adapt to social in every aspect, ensuring consistency and effects across all channels.

Picked up by Campaign, OOB’s most recent success is winning lingerie legend Ann Summers following a competitive pitch.

Why OOB Stands Out: 🚀

• Top-rated social media agency: OOB boasts over 40 verified 5-star reviews on Clutch, the leading global platform for agency reviews—a testament to our results and client satisfaction.

• Social-first experts: We’re social natives with a trend-led, humanistic approach that consistently delivers thumb-stopping campaigns.

• Best-in-class production & design: Our standout production and design-driven storytelling create bold, eye-catching brand experiences that drive measurable results.

• Proven performance: Demonstrable success across key platforms – from Instagram, TikTok and Threads to emerging channels – with impressive growth and conversion metrics showcased in client case studies.

• Strategic excellence: We don’t just chase trends – we build strategic, scalable social ecosystems that align with your brand and business goals.

OOB’s Key Services:

• Social: OOB offer full-service social media marketing, including social strategy & positioning, social media management, platform native content creation, channel & community management, campaign creation, social listening, integrated reporting, and data & insights. 

• Creative: Platform native content creation, content production, UGC, 360 production, campaign creation & management, copywriting, TVCs.

• Influencer: End-to-end influencer management. 

• Brand: Brand strategy & positioning, visual identity, verbal identity, packaging design, website design & development.

• Paid: Paid social strategy, paid social campaign management, paid social asset creation, influencer & UGC paid social.

Key Clients: SONOS, TikTok, Ann Summers, Knickerbox, Indomie, ZAGG.

Ready to work with one of the top social media agencies in the UK? Explore our social media case studies and services, or contact us today to discover how we can help elevate your brand.

2. OK COOL – The Innovators 💫

OG partner to TikTok, this leading global agency keeps its finger on the pulse of the next social trends, delivering campaigns that resonate. The agency focuses on humanising brands and connecting them to (sub)cultures through culturally relevant, creative content that drives real engagement and conversions. OK COOL offers a wide range of services including social media strategy, influencer marketing, content production (photography, videography, animation), paid media, brand partnerships, creative direction, and emerging areas like Web3 and metaverse marketing. The agency is known for working closely with platforms like TikTok, Twitch, and Insta as official creative partners and emphasises culture-first, bold storytelling that cuts through noise and builds loyal communities.

In 2025, OK COOL expanded their leadership team, appointing new heads of production, client services, and strategy (Ads of Brands). They also just launched their annual trend report, “Let Them Eat Lore”, which talks about the power of social media comment sections, where 91% of consumers “lurk” in comments, and 65% find strangers in comment threads funnier than the creators themselves.

Key Highlights:

• Avant-garde campaigns that stand out in crowded feeds
• Partner with some of the world’s biggest brands and platforms
• Social wizardry across platforms like Instagram and TikTok
• A knack for creating viral, conversation-starting content

OK COOL’s Key Services:

• Community: Platform management, community management, paid media management, campaign reporting, live events. 
• Creative: Brand identity, creative positioning, visual guidelines, social media toolkits, creative ideas and concepting, creative campaigns, social first creative direction, art direction and styling. 
• Creators: Creator strategy, influencer strategy, creator management, creator campaigns, influencer campaigns. 
• Production: Full-service production, OOH, photography, videography, sound design, motion design, AR, merch, virtual events. 
• Strategy: Research and data analysis, trend reports, industry reports, brand positioning, campaign strategy, social strategy, TikTok strategy. 
• Visual identity: Art direction, design system, graphics, typography, colour palette, imagery, applications, logo design. 

Key Clients: TikTok, Nike, Urban Outfitters, Puma, Benefit Cosmetics.

3. We Are Social – Global Titans of Creativity 🌎

With over 1,000 creatives worldwide, We Are Social delivers a comprehensive suite of marketing, creative, media, and technical services grounded in deep insight into online culture and social behaviors. The agency’s strategic approach prioritises social-first thinking, blending audience and category analysis with real-time cultural conversations to keep clients ahead of significant trends.

Creatively, We Are Social produces everything from fully integrated campaigns and social gaming activations to long-form video and rapid-response content, telling brand stories across all digital formats, for big names like Adidas and Netflix. Their in-house production specialists, We Are Social Studios, create agile, platform-centric content, whether for TikTok, Instagram Reels, livestreams, podcasts, or global TV ads. Specialist divisions like We Are Social Sport drive innovative sports marketing, while We Are Social .XYZ leverages cutting-edge technology for future-focused creative strategy, and We Are Social Influence connects brands with authentic influencers to foster meaningful, impactful storytelling at scale.

In 2025, We Are Social acquired production studio HELO to expand its production power, including AI-powered creative and experiential marketing capabilities (Adweek).

What They Offer:

• A social-first approach that prioritises authentic engagement
• Comprehensive services, from influencer campaigns to storytelling
• Extensive experience with high-profile clients

We Are Social’s Key Services:

• Strategy: We Are Social’s research and strategy teams work in close collaboration at this stage. Their thinking is rooted in audience, category, and cultural conversation. 
• Creative: Fully integrated campaigns, social media and gaming activations, creative storytelling. 
• Production: We Are Social Studios are the agency’s in-house team dedicated to social-first production. 
• Paid media & distribution: Their approach uses strategic distribution to place the right stories in front of the right people.

Key Clients: Adidas, Samsung, Under Armour, Bose, Meta. 

4. Born Social – The Future-Forward Creatives 👀

This B Corp-certified agency specialises in purpose-driven campaigns for brands like Uber and Tinder, balancing creativity with societal impact. Born Social is a full-service social media agency that delivers strategic, creative, media, management, and influencer services designed to place social thinking at the center of modern brand building. Their strategy team develops bespoke social and content strategies rooted in cultural insight and business objectives, while their creative division brings ideas to life with visually impactful, thumb-stopping content across platforms like TikTok, Instagram, and LinkedIn. Born Social’s media experts handle targeted paid advertising, social commerce, and analytical reporting, ensuring campaigns reach the right people at the right time to drive both brand awareness and measurable growth. In terms of management, the agency provides end-to-end social channel oversight, closing the loop between campaign execution and real-time results, while its influencer practice – rooted in close collaboration with authentic content creators – amplifies brand messages, taps into niche communities, and builds brand loyalty.

🌍 Born Social is celebrated for its “Clean Creatives” commitment, transparent inclusive culture, and B Corp certification, all reflecting a dedication to social impact, ethical partnerships, and employee wellbeing. In the past year, Born Social increased staff numbers by 66% to over 180 employees, correlating with strong revenue growth.

Why They Shine:

• Purpose-driven campaigns aligned with social and environmental impact
• Diverse client portfolio showcasing adaptability across industries

Born Social’s Key Services:

• Strategy: Social strategy, data and insight, measurement and effectiveness.
• Creative: Motion design, photography, videography, copywriting, art direction, illustration, creative concepting. 
• Media: Paid media planning and management, social commerce. 
• Management: Community management, social listening, reporting and analysis, content calendars. 
• Influencers: Sourcing influencers, contracting and IP negotiation, campaign management, reporting and analysis. 

Key Clients: Tinder, Nando’s, Chilly’s Bottles, Bravissimo, Uber. 

5. Social Chain – The Viral Visionaries 📲

Founded by Steven Bartlett, and known for tapping into cultural trends, Social Chain creates innovative campaigns that dominate the digital space. Social Chain is a dynamic social media agency with hubs in London, Manchester, and New York, known for building stronger connections between people and brands through a unique blend of social-first creative and strategic marketing. Founded in 2013 and part of the Brave Bison group, Social Chain focuses on turning communities into customers by putting people over platforms and harnessing culture to connect brands with new audiences. The agency offers end-to-end social strategy, content creation, influencer marketing, and paid media services designed to translate brand guidelines into social-first campaigns that grab global attention and drive business outcomes. Social Chain has worked with major clients such as KFC, Montblanc, Amazon Prime Video UK, and LinkedIn UK, delivering culturally relevant campaigns that leverage social listening, real-time insights, and creator economies to maximise impact. In recent years, Social Chain has grown significantly, with a strong focus on innovation, creator-led content, and building digital communities that fuel brand loyalty and growth.

In 2025, Brave Bison, Social Chain’s parent company, acquired influencer agency The Fifth from News UK to merge with Social Chain and integrate its influencer marketing capabilities (News UK).

Key Strengths:

• Expertise in trend integration, ensuring content resonates
• Managing over 80 million followers for unparalleled content distribution

Social Chain’s Key Services:

Social Chain work by a three-step service offering, which includes:

• Discover: SocialChain audit, social listening and trend analysis, insight and strategy.
• Define: Social brand toolkit, social communication playbook, measurement framework, innovation plans.
• Deploy: Campaign concepts and execution, content (always-on, reactive, series), influencer management and collabs, community management, paid social advertising, reporting and optimisation.

Key Clients: Warner Brothers, unicef, Beats, instax, BBC.

Why Choose One of the Top Social Media Agencies in the UK?

In today’s fast-paced digital world, partnering with one of the top social media agencies in the UK is vital for success. Here’s why:

• Expertise You Can Rely On: From trend spotting to platform-specific strategies, they bring unparalleled knowledge
• Creative Brilliance: Tailored campaigns that capture attention and drive engagement
• Data-Driven Decisions: Every post, ad, and strategy is backed up by analytics for measurable results
• Scalability for Growth: The best agencies grow with your brand, providing solutions for any challenge

Choosing one of the top social media agencies is a strategic partnership that will fuel your brand’s growth.

Key Factors When Choosing a Social Media Agency

Choosing one of the top social media agencies is a strategic decision that can define your brand’s success. Here’s what to prioritise:

• Industry Expertise: An agency with a proven track record in your sector understands your audience and knows how to connect with them
• Their Own Social Media Presence: Does the agency practise what they preach? A strong, well-managed social presence is a testament to their expertise.
• Creativity and Innovation: Look for bold ideas and unique campaigns that make your brand stand out
• Client Success Stories: Case studies and testimonials reveal how effectively an agency delivers results
• Transparent Communication: Clear reporting and proactive updates ensure a seamless partnership
• Analytics Expertise: Ensure the agency provides actionable insights and detailed reporting to optimise your campaigns continuously
• Adaptability: Social media is dynamic: your agency should be equally agile in pivoting strategies to stay relevant

Want to see what social can truly do for your business? Partner with one of the top social media agencies in the UK today and watch your brand thrive. 

Looking for the top social media agencies in London, UK? Check out our guide

Contact Our Own Brand to get started ✌️

Glossary of Key Social Media Services

• Organic social: Non‑paid content published on social platforms to build community and engage existing followers.
• Paid social: Advertisements served on platforms like Facebook, Instagram, TikTok or LinkedIn, often targeted by demographics, interests or behaviour.
• Influencer marketing: Collaborations with individuals who have engaged followings to promote products or services in an authentic way.
• Social commerce: Enabling direct purchases within social platforms, for example through TikTok Shop, Instagram Checkout or native shopping tags.

Performance creative: High‑impact video or graphic content designed to drive specific actions such as clicks, conversions or app installs.

Frequently Asked Questions (FAQs)