Influencer Marketing Agencies in the UK

Reviewing 9 Famous Influencer Marketing Agencies in the UK

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The top three countries occupying the influencer marketing scene in the world are the US, the UK, and Canada. However, this article focuses on a specific country: the UK. Influencer marketing agencies in the UK are now professional, expert teams. They run campaigns not only in the UK but also globally.

In this blog, we’ll take a look at ten British influencer marketing agencies with proven results. Some of these agencies have collaborated with famous names, and some of them are there to help smaller businesses grow.

We chose these agencies based on their experience, influencer networks, and proven campaign results, especially in the UK. We also considered how transparent, strategic, and collaborative they are. These are the same things you should check when picking your next agency. Now let’s check them all out: 

Best Influencer Marketing Agencies in the UK 

In this section, we’ll review 10 UK influencer marketing agencies with details. These agencies offer fully-managed influencer services.

For each agency, we’ll go through their services, pricing, pros and cons, case studies, and lastly, user reviews. 

By the end of the blog, you’ll have a clear mind about these options and can decide which of them can reach your marketing goals. Let’s start our list: 

Top 9 Influencer Marketing Agencies in the UK

1. Socially Powerful

Our first influencer agency, Socially Powerful, launched in London back in 2017. While they are known across the UK, they are truly a global company and have offices in the US, Europe, China, and Dubai. 

Fun fact about Socially Powerful: The agency was founded by people who were content creators themselves, such as James Hacking, a former football freestyler. Because of this, they had a unique perspective on social media marketing. However, currently, Socially Powerful is led by CEO Majid Bahi. 

The agency now has over 150 experts who organize campaigns for famous clients, and their main focus is on platforms like Instagram, TikTok, and YouTube.

Socially Powerful also runs a special group, “Socially Powerful For Good,” dedicated to helping non-profits and good causes.

Influencer marketing agencies in the UK: Socially Powerful

Socially Powerful Services 

Here are some key features of this agency:

  • Full-stack Influencer Campaigns: Strategy, content creation, paid amplification, analytics, and more.
  • Multi-Platform Support: They do TikTok advertising, Instagram advertising, and YouTube marketing.
  • Guaranteed ROI: Their approach is “Guaranteed work,” so in case of not reaching your desired influencer marketing KPIs, you won’t make any payment. If this claim is true, it does feel unfair to the influencers.
  • Social Media Management: The agency offers services for easier social media management as well. 
  • Video Production: Socially Powerful also offers content production consulting. 
  • Tech Tools: They use their own software to find influencers, plan campaigns, and track results.
  • Social Commerce: Socially Powerful makes social posts shoppable, turning likes into sales.

Socially Powerful Pricing

Socially powerful doesn’t publicly list pricing for their campaigns. This is probably because the pricing is customized for each brand with different needs. However, on Clutch, it is stated that Socially Powerful’s minimum project size starts at $50K

Socially Powerful’s Notable Collaborations 

Socially Powerful has notably collaborated with major global brands, including:

Amazon, TikTok, L’Oréal, Red Bull, ULTA Beauty, Hyundai, Yves Saint Laurent, Ralph Lauren, and Lenovo.

Socially Powerful’s Case Study: ULTA Beauty & L’Oréal’s #ShowUpBold TikTok Campaign

Socially Powerful partnered with L’Oréal USA and ULTA Beauty to create a campaign on TikTok. Their goal was to capture the attention of Gen-Z consumers during the critical back-to-school season. 

Socially Powerful built the campaign around the idea of “making up for lost time” and returning with confidence. To bring this to life, they launched the hashtag challenge #ShowUpBold.

The strategy had two main parts. First was ‘Empowerment’: Encouraging students to express themselves through bold, colorful cosmetics as they headed back to school.

The second was ‘Original Sound’. They created a custom track for TikTok to boost relevance and encourage user-generated content.

The execution of the campaign had three parts: 

  1. Creator Activation: 20+ top beauty and lifestyle influencers shared bold makeup looks using L’Oréal’s best-selling products.
  2. Custom Sound: Rising artist Kyla Imani produced the original track “Showing Up Bold”. It was integrated into influencer content to drive virality.
  3. Platform Focus: The campaign was built to fit naturally on TikTok. It used the platform’s algorithm, which rewards creative content.
Socially Powerful’s Case Study

The #ShowUpBold campaign broke records in the U.S. and exceeded all KPIs. It positioned L’Oréal and ULTA as leaders in the Back-to-School beauty conversation. And once again, the power of creator-led, social-first storytelling was proved. 

Socially Powerful Pros and Cons

Let’s review the pros and cons of partnering with Socially powerful: 

✅Pros❌Cons
Global reach: Offices in London, New York, Dubai, and Beijing give them access to creators and audiences worldwide.Expensive: Their services are priced for large brands, which may be out of reach for smaller companies.
Performance-driven: They focus on clear results like reach, engagement, and conversions, and sometimes even guarantee outcomes.Less focus on micro/local creators: While they work with all tiers, their strength is in large-scale, global campaigns.
Cross-platform expertise: Active on TikTok, Instagram, YouTube, Twitch, LinkedIn, and more, with quick adoption of new trends.Less personal: As a large agency, they might not offer the same hands-on, boutique feel as smaller firms.
Strong influencer network: They work with a wide range of creators across industries, from gaming to fashion.Creative limits: Their structured, results-first approach can sometimes leave influencers with less freedom.

2. Brainlabs

The third agency on our list has a more modern approach. Brainlabs is an influencer agency in London that is famous for mixing data, technology, and creativity. You could say they lean into experimentation, testing, and optimization rather than old-school advertising methods.

Brainlabs started working in 2012 and since then, has grown into a major player in the market. Currently, they have offices in the US, Europe, and Asia (Singapore), too. In addition to that, they are also growing fast by purchasing other firms, like:

  • Exverus Media (US): For its West Coast presence,
  • Sparro (Australia): For performance marketing expertise in APAC,
  • Distilled/Brainlabs SEO: For its search and content capabilities.
Brainlabs agency

Brainlabs Services

Some of this agency’s features include:

  • Gen Z creators: They work closely with Gen Z influencers, making it easier to reach young audiences.
  • Real-time data: Campaigns use live analytics to target the right people and track results.
  • Cross-channel marketing: Influencer content is combined with SEO, paid ads, and other tools to boost impact.
  • Smart tech: Tools like Bytesights help pick the right creators and improve content as it runs.
  • Global reach: With offices worldwide, they tap into diverse talent and creative teams.
  • End-to-end service: From planning to content and reporting, they handle the full campaign.

Brainlabs Pricing

Brainlabs doesn’t publish fixed pricing for influencer campaigns. Their approach is fully custom and built around your goals, platforms, and budget

Brainlabs Notable Collaborations 

Due to its unique approach, Brainlabs has attracted notable clients to itself. For example:

Walmart, Estée Lauder, Capital One, Domino’s, Expedia, Deliveroo, Microsoft Advertising, and VWO (strategic partnership).

Now let’s check out a case study of one of these brands. We came across a detailed case study on the Brainlabs website about their work with Estée Lauder during a key gifting season. It’s a good example of their data-driven approach and shows clear, measurable results.

Brainlabs Case Study: Estée Lauder

Estée Lauder faced a big challenge during the busy holiday gifting season. The market was crowded with ads, and they needed to stand out to grab attention. Their goal was to influence impulse beauty purchases at scale. To do this, they needed a bold new strategy that would change how a luxury beauty brand connects with shoppers during the holidays.

Brainlabs’ solution was to combine real-time trend data with ad personalization. They created a responsive, data-driven advertising system that could adapt instantly: 

  1. They linked data from Google Merchant Centre, which tracks trending products, with Spirable’s ad tech platform.
  2. When a product started trending, the ads were automatically updated to feature it right away.
  3. Ads included urgency and social proof elements, such as “most wished for,” which encouraged impulse buying and boosted desirability.
Brainlab's case study

Without doubt, Brainlab’s strategy worked. Compared to Estée Lauder’s usual campaigns, the results were much stronger: 

  • 16% higher return on ad spend (ROAS), 
  • 17% Lower cost per acquisition (CPA). 

Brainlabs Pros and Cons 

Let’s see the best and worst of this platform:

✅Pros❌Cons
Data-driven: They use tools like Bytesights to track results and match brands with the right influencers.High cost: Their services are aimed at bigger budgets, which may not work for smaller brands.
Integrated marketing: They mix influencer campaigns with SEO, PPC, and paid media for a full strategy.Less personal: As a large global agency, they may not give the same close attention as smaller firms.
Gen Z focus: Through ‘Fanbytes,’ they have expertise in TikTok, Snapchat, and youth culture.Complex setups: Their multi-channel approach can feel heavy if a brand only wants simple influencer work.
Global presence: With offices in the UK, US, and APAC, they can run international campaigns with cultural insight.Not hyper-local: They’re better at national or global campaigns than small, community-based ones.

3. Purple Goat 

Our next influencer agency in the UK was founded with a different purpose from others. In 2009, Martyn Sibley founded the ‘Purple Goat’ to fix a big gap in advertising: Inclusivity. Back then, most brands were not showing disabled people in real ways, and Purple Goat aimed to fix that.

The agency’s mission is to change how brands think about disability. They’re showing that inclusive campaigns can connect with a wide audience of 1.3 billion disabled people. 

What makes Purple Goat different is that it is disability-led. More than half of the team are disabled. This is proof of their work and makes their campaigns feel real and relatable. 

They run campaigns across all the major social platforms, but they focus heavily on Instagram, TikTok, Facebook, and YouTube.

In addition to all these, Purple Goat has won several awards. One example is the Diversity and Inclusion Company of the Year at The Drum Marketing Awards. They have also won the Best Boutique Influencer Marketing Agency at the Global Influencer Marketing Awards. 

Purple goat agency

Purple Goat Services

What this agency can offer you includes:

  • Inclusive influencer campaigns: They specialize in working with disabled and diverse creators to help brands reach overlooked audiences.
  • Custom strategy: Every campaign is designed for your goals, platform mix, and audience.
  • Full campaign management: From creator sourcing to reporting, the Purple Goat agency handle everything end-to-end.
  • Brand partnerships: They’ve worked with Meta, Unilever, Tesco, and more, which shows they can deliver at scale.
  • Workshops and training: The Purple Goat agency offers sessions to help teams improve inclusive marketing from the inside out.

Purple Goat Pricing

As a boutique, specialist agency, Purple Goat operates on project or retainer fees. They focus on mid-to-large brand partnerships (often with sizable inclusive marketing budgets), but specific rate cards are not publicly available. Without official figures, we rely on norms. 

Purple Goat Notable Collaborations 

Let’s take a look at some of the partnerships of the Purple Goat’s agency:

Tesco, Virgin Media, Starling Bank, Currys, Avanti West Coast, Braun, Meta, Unilever, TUI, and American Express.

Purple Goat Case Study: Virgin Media Gamepad Campaign

Virgin Media O2 is a massive UK company that sells internet, mobile phones, and TV. They wanted to promote the launch of the ‘Virgin Media Gamepad,’ a new dedicated gaming space at The O2.

Virgin Media had three goals. First, brand awareness. Second, highlight perks for O2 to Virgin Media users. Third, show that Gamepad is inclusive and accessible.

To bring this to life, Purple Goat worked with a very small group of just four macro influencers. Each creator made a vlog-style content for TikTok and Instagram and filmed their real visit to the Gamepad.

Purple Goat case study

Even with only four creators, the campaign delivered strong results. The videos were watched 314,485 times, appeared on screens 323,364 times, and generated 18,268 engagements. The success showed that a small but well-chosen creator team could make a big impact.

Purple Goat Pros and Cons

Lastly, here are the advantages and disadvantages of collaborating with the Purple Goat agency: 

✅Pros❌Cons
Specialized in disability representation: They’re one of the few agencies focused on working with disabled creators.Niche focus: Their strength is in inclusive campaigns, which may not suit brands looking for broad, mainstream influencer work.
Trusted by major brands: They’ve worked with Meta, Unilever, Tesco, TUI, etc.Smaller team: With around 10 employees, they may not offer the same scale or speed as larger global agencies.
Limited platform diversity: Most of their case studies focus on Instagram and Facebook; less visibility on platforms like TikTok or YouTube.

4. Buttermilk

Buttermilk is an influencer marketing agency that started in London, but now has offices in Miami and Dubai. Even though they’re not a huge corporation, they work internationally across many regions and industries.

Due to their smaller size, they don’t offer full-service digital marketing services; they are completely focused on influencer marketing. And just like any other agency, the company works with all types of influencers, from nano to mega. 

See also  Top 16 Influencer Marketing Agencies in Australia (2025)

Their network is global and covers many categories like beauty, fashion, food, lifestyle, and consumer goods (FMCG). In addition to that, Buttermilk runs campaigns across the main social media sites: Instagram, TikTok, YouTube, and Facebook. 

Buttermilk influencer marketing agency in the UK

Buttermilk Services 

  • Product Seeding: Turns micro-influencers into brand ambassadors through successful product seeding. 
  • Creator Campaigns: End-to-end campaign creation with influencers of various sizes. 
  • Creator Programmes: Manages influencer relationships to create long-lasting partnerships.
  • Global Presence: While this agency is rooted in the UK with headquarters in London, it also has offices in Miami and Dubai, so brands looking for influencer marketing agencies in Miami and Dubai can also work with this company.

Buttermilk Pricing 

Buttermilk doesn’t publish fixed pricing for influencer campaigns. They offer custom quotes based on your brand’s goals, creator selection, platform mix, and campaign scope.

Buttermilk Notable Collaborations 

Here’s a one‑line list of Buttermilk’s notable collaborations:

GAP, Prada, Estée Lauder, Armani Beauty, and Mugler. 

Now, let’s review a case study from this agency to see how it performs in campaigns. We have found a detailed case study:

Buttermilk Case Study: Gap — Sustaining Cultural Relevance 

Gap is a multinational clothing retailer best known for its casual, classic American style. They had recently re-entered the market thanks to high-profile celebrity partnerships. 

Now here’s where Buttermilk comes in. They helped the brand keep that momentum going and keep them relevant. 

To achieve this goal, Buttermilk designed a multi-layered strategy for content creators that used different types of influencers for different purposes.

Macro influencers, with audiences between 300,000 and one million, were brought in to maximize reach. Also, mid‑tier influencers, with 50,000 to 300,000 followers, acted as tastemakers. They created music, dance, and cultural trends. 

Finally, smaller creators, Gap’s brand fans with audiences of 1,000 to 15,000, formed the “always‑on” community.

Buttermilk case study

 

The campaign generated over 2,400 pieces of content, exceeding the target of 2,000 by about 20%. The average view rate hit roughly 47%, more than triple the original goal of 14.5%. Engagement rates also rose well above target, reaching nearly 11% compared to the 6.9% benchmark.

Most strikingly, impressions soared to about 25.2 million, more than three times the original target of 7.7 million.

Buttermilk Pros and Cons

Let’s review some of the advantages and disadvantages of working with this agency:

✅Pros❌Cons
Focus on authenticity: Campaigns are designed to feel natural and relevant, not overly polished or scripted.Not ideal for small brands: Their campaigns are built for scale, which may not suit smaller budgets.
Full-service offering: They handle everything from strategy to execution and reporting, so brands don’t need to manage multiple vendors.Limited transparency on pricing: No public pricing structure, which makes it harder to estimate costs upfront.
Strong brand partnerships: They’ve worked with famous clients and have credibility in the space.

5. SevenSix Agency

Many influencer marketing agencies are founded by influencers themselves, and SevenSix is one of them. In 2019, Charlotte Williams founded the SevenSix Agency as a response to the lack of diversity in advertising and influencer marketing.

The agency works with and manages a large group of creators. They pay special attention to voices that don’t get much attention normally. This includes black and minority ethnic influencers, as well as other groups who are often ignored in big advertising campaigns.

In fact, SevenSix is one of the few black-owned influencer agencies in the UK. This is a special position in the market, especially now that more brands want inclusive, well-represented campaigns.

In addition to this, SevenSix runs its campaigns on all the main social media sites, including Instagram, TikTok, YouTube, and X.

SevenSix Agency

SevenSix Services

  • Talent management: SevenSix supports influencers with brand partnerships, career growth, and content strategy.
  • Consulting for brands: They advise on inclusive marketing and help teams improve representation and avoid tokenism.
  • Training and workshops: They offer sessions on diversity, influencer strategy, and ethical marketing practices.
  • Creator Club: SevenSix has a community space for influencers to learn, connect, and access resources.
  • Campaign strategy and execution:  They handle everything from planning and influencer outreach to reporting and impact measurement.

SevenSix Pricing

SevenSix doesn’t list fixed prices. Every brand’s campaign will need a different budget based on its needs and goals. 

SevenSix Notable Collaborations 

Here’s a list of SevenSix agency’s notable brand collaborations pulled from their case studies and public mentions:

Pinterest, Greenpeace, Proper Snacks, eBay, Dove, Greenpeace UK, The Body Shop, Bumble, and WWF.

Next, it’s time to check the case studies. 

SevenSix Case Study

Surprisingly, there are no dedicated case study landing pages on the SevenSix agency’s website.  

SevenSix Pros and Cons

Let’s review the pros and cons of the SevenSix agency:

✅Pros❌Cons
Focus on diversity: They help brands work with creators from different backgrounds, especially underrepresented groups.Mostly UK-based: Their network is strongest in the UK, so reach outside the region may be limited.
Manages influencers directly: They have their own network of creators, which makes it easier for brands to find and work with talent.Smaller agency: They may not have the same resources or global reach as bigger agencies.
Community support: They run programs to help new influencers grow, not just paid campaigns.Fewer platforms: Most of their work is on Instagram and TikTok, with less focus on YouTube or Twitch.
Not tech-heavy: They don’t offer advanced tools or deep data tracking like some larger agencies.

6. Social Chameleon

Social Chameleon is a digital and social media agency with its main office in London, plus another one in Sydney. Compared to other agencies, it’s a smaller, specialized company with about 11 to 50 employees.

This agency is famous for its special approach called “Search-First Social Media®.” This means they don’t just post on social media; they combine social strategy with SEO and digital PR. And the result of this innovative approach was the Social Media Agency of the Year Award. 

Social Chameleon works with a wide range of influencers across many different industries, including: Cars, energy and tech, fitness, food, travel, hospitality, and wellness. They also cover the main social media platforms: Instagram, TikTok, YouTube, Facebook, and LinkedIn (for B2B). 

Social Chameleon agency

Social Chameleon Services 

  • Social media marketing: They design strategies that boost brand visibility and drive engagement across social media.
  • Influencer marketing: They run targeted, ROI-focused influencer marketing campaigns.
  • Content creation: From graphics to video, Social Chameleon produces content suitable for each social media platform. 
  • SEO integration: Their “Search-First Social Media®” approach mixes SEO with social to improve reach and discoverability.
  • Paid media: They run performance-driven ad campaigns on social media and search engines to amplify results.

Social Chameleon Pricing

Social Chameleon offers custom pricing for influencer campaigns, tailored to each brand’s goals and budget.

Social Chameleon Notable Collaborations 

Here’s a list of Social Chameleon’s notable collaborations:

Acquisition Aesthetics, Alumier MD, BKT Tires, Pure Audio, and KWA Analytics.

Social Chameleon Case Study

Once again, there is no dedicated “Case Studies” portfolio page. To receive their reports on their case studies, you must submit your information on their website, and they will email you their reports. 

Social Chameleon Pros and Cons

To name a few things the agency does well, and a few others it needs to improve on, we can say:

✅Pros❌Cons
Strong influencer vetting: They carefully check each influencer’s audience, past brand work, and values to avoid mismatches or reputation risks.Less known globally: Compared to bigger agencies, they’re more niche and may not offer global scale.
Legal support included: They have an in-house legal director who helps with contracts, rights, and brand protection.
Expert tools and research: They use advanced software to find the right influencers and track results, which saves time and improves targeting.

7. The Goat Agency

The Goat Agency is one of the biggest and most established influencer marketing agencies in the world. It was started in 2015 and is now part of a larger company called WPP.

Fun fact, the Goat in the agency’s name stands for ‘Greatest Of All Times.’ Considering their strong portfolio, their name suits their reputation. 

Goat is a huge operation, and has over 600 specialists working across 37 different markets and 6 continents. Their main office is in London, but they also have large offices in New York and Singapore. 

Goat calls itself a “social-first” agency. This means that for every campaign, they put influencer content at the very center of the brand’s message. They use their own CRM that has performance data on over 60,000 influencers. 

Also, the agency runs campaigns on multiple social media platforms, including Instagram, TikTok, YouTube, Facebook, Twitch, and LinkedIn. 

The goat agency

The Goat Agency Services

  • Influencer marketing: The Goat Agency runs global and successful influencer marketing campaigns.
  • Paid media integration: They combine influencer content with paid ads to boost reach and performance.
  • Strategy and planning: The agency builds custom campaign strategies based on audience insights and each brand’s goals.
  • Content production: They create everything from influencer videos to branded visuals, built to match each platform’s style.
  • Performance tracking: Their tech platform, IBEX, tracks results in real time to optimize campaigns.

The Goat Agency Pricing

The Goat Agency doesn’t offer standard packages. Pricing depends on your campaign goals, platforms, influencer tier, and scope

The Goat Agency Notable Collaborations 

Here’s a list of The Goat Agency’s customers: 

Calvin Klein, NIVEA, World of Warcraft, Qualcomm Snapdragon (Coachella), Dell, Tesco, Audi, The Body Shop, TurboTax, Wayfair, Meta, and Uber.

The Goat Agency Case Study: The ODEON Cinema 

This case study goes back to after the pandemic, when people were still afraid to visit public places like cinemas. In this campaign, the ODEON Cinema partners with the Goat Agency to encourage people to come back to the cinema. 

Their goal was to organize a campaign on TikTok for two reasons. 1) to grow ODEON’s followers on TikTok. And 2) to encourage people to let down their fear and come back to the cinema. 

The core strategy was to use influencers to recall the sensory experience of going to the movies. All the things people missed, like the smell of popcorn and the feeling of watching a movie with hundreds of people on a huge screen.

Key tactics included:

  1. Creator Takeovers: Popular creators, like Max Balegde, posted content from the cinema.
  2. Creative Content: They used special effects (VFX), animation, and comedy sketches.
  3. Family Focus: They ran campaigns with parenting influencers, such as a “Family Film Closet” activation, to reach that audience.
  4. Paid Boost: They gave the best-performing content an extra push with paid TikTok advertising (Spark Ads) to reach even more people.
The goat agency case study

The campaign was a great win, and beat all its main goals much faster than expected.

  • First, the ODEON TikTok account reached 100,000 followers six months early, hitting a one-year target in half the time.
  • Second, the campaign made a lot of money: for every dollar spent on ads, they earned $14.70 back (this is called ROAS).
  • Finally, the campaign drove over 109,000 clicks to the ODEON website in just one three-month period.

The Goat Agency Pros and Cons

✅Pros❌Cons
History with famous brands: They’ve run campaigns for Meta, Dell, Tesco, and more, showing strong experience and trust.Not ideal for small brands: Their setup is built for scale, which may not suit smaller or local businesses.
Global presence: Offices in London, New York, and Singapore allow them to run international campaigns.

8. NewGen (formerly Kairos Media)

NewGen (which you might remember as Kairos Media) is a creative and creator agency that launched in 2015. They recently changed their name to NewGen to better reflect their focus on working with creators and online communities. The agency’s headquarters are in London, but they also have offices in New York and Manchester.

The agency manages a global network of over 50,000 creators. This includes every size of influencer, from nano to mega influencers

While NewGen is truly famous for its professionalism in gaming, e-sports, and youth culture, they run campaigns for many different sectors, too. For example, they’ve had successful campaigns in lifestyle, fashion, tech, and finance brands.

The agency is active on all major platforms, including Instagram, TikTok, YouTube, Facebook, Twitch, and LinkedIn. Their biggest strength is definitely their gaming focus. However, because of their focus on younger audiences and youth culture, brands that want older or traditional customers might need to look for a different partner.

Influencer marketing agencies in the UK: NewGen agency

NewGen Services

  • Social-First Creativity: Designs campaigns around the preferred behaviors of Gen Z.
  • Gaming and Esports Expertise: Offers specialist marketing services to gaming brands, including influencer tournaments and esports partnerships.
  • Multi-Channel Production: Handles content creation and influencer partnerships across Facebook, Instagram, TikTok, Twitch, YouTube, and beyond.
  • Data & Analytics: Uses audience insights and performance data to refine campaigns for younger consumers.

NewGen Pricing

Unfortunately, no third-party data or first-hand information is available on NewGen’s pricing.

NewGen Notable Collaborations 

Just like every agency on our list, NewGen has collaborated with famous brands. Here are some examples: 

Revolut (Sidemen partnership), KFC (KFConsole launch), Samsung, JBL, Tencent, Gran Turismo Esports Tournament, and AMD.

NewGen Case Study 

In 2024, Pepsi organized a campaign with NewGen to update its marketing. Their main goal was to move from global ads to campaigns that were local and relevant to Gen Z. Specifically, they wanted to boost Pepsi MAX Cherry by focusing on its younger, mostly female fans.

To do this, NewGen found a smart insight: it’s hard to open soda cans with long fingernails. This was a common problem for the target audience. 

So, the agency created a fix fast: They launched “The Cherry Ring Popper.” This fun ring also worked as a can opener, saving nails. They did the entire project, from idea to launch, in just three weeks and on a low budget.

The launch was straightforward. First, they used influencers to create hype about the ring. 

Next, they dropped their own QVC-style ad on social media after the influencers built excitement. 

Finally, they ran a contest in which people could win one of the limited-edition rings. This was the main part of the campaign that got the audience engaged with the campaign.

NewGen agency case study

The campaign quickly created a huge hype. In just two weeks, the ads were seen over 10 million times. The influencer content showed a high engagement rate of 19.2% and best of all, the brand’s own TikTok account grew by a massive 54%.

NewGen Pros and Cons

Just like any other agency, there are some pros and cons to NewGen. Let’s get into it:

✅Pros❌Cons
Strong in gaming and youth culture: Known for campaigns with The Sidemen, Gran Turismo, and Reddit, they’re great at reaching Gen Z and gamer audiences.Not built for small brands: Their work focuses on bold, culture-driven campaigns, which may not suit smaller budgets or simple briefs.
UK-focused: Their strongest presence is in the UK, so global reach may require extra planning.
Less visible in B2B or niche sectors: Their case studies lean toward lifestyle, gaming, and youth brands.

9. Billion Dollar Boy 

As our last agency, we have another company with headquarters in London, but a global presence. Billion Dollar Boy (BDB) was founded in London in 2014, but they also have offices in New York and New Orleans. 

They describe themselves as a “social-first creative agency,” which means they combine ideas, data, and technology to run large, successful campaigns. 

They use their own technology platform, called ‘Companion.’ This tool connects directly to social platforms like Meta, TikTok, and YouTube. This link gives them access to reliable audience data and lets them track performance in real-time. 

All these process makes it easy to find and contact the right influencers, manage many influencer campaigns at once, and measure results accurately. But this is not just talk. Their reputation was recently proven when they were named Influencer Marketing Agency of the Year at the 2024 bCreator Awards. 

Billion Dollar Boy covers platforms like Instagram, TikTok, YouTube, Facebook, Snapchat, Pinterest, and LinkedIn. 

Influencer marketing agencies in the UK: Billion Dollar Boy

Billion Dollar Boy Services 

  • Influencer marketing: The agency runs social-first campaigns using data, creativity, and platform expertise..
  • Strategy and insights: Campaigns are built around audience data, platform trends, and brand goals to maximize impact.
  • Paid media: BDB amplifies influencer content with targeted ads to boost reach and conversions.
  • Campaign management: Their proprietary platform, Companion, helps manage talent, track performance, and streamline reporting.
  • Platform partnerships: As official partners with Meta, TikTok, Pinterest, Snap, and YouTube, they stay ahead of new tools and features.

Let me know if you’d like this adapted for a pitch deck or compared with another agency.

Billion Dollar Boy Pricing

Just like every other Influencer agency in the UK, Billion Dollar Boy does not have an official pricing listed. 

Billion Dollar Boy Notable Collaborations 

BDB has collaborated with famous names in the market, including: PepsiCo, Heineken, L’Oréal, Zalando, Shiseido, Samsung, NARS Cosmetics, and Pandora.

Billion Dollar Boy Case Study: Loewe’s “Squeeze Bag” Launch

In this case study, BDB proved that luxury brands can use creators to sell products while still respecting their famous craftsmanship. 

Loewe, a luxury brand, was releasing their brand new “Squeeze Bag.” The main goal of the campaign was simple. It had to make the Squeeze Bag an instant icon and drive huge awareness among their target audience (mostly women, 18+).

The challenge was that they had to stand out in busy social feeds without using boring, traditional advertising. The product launched globally across Europe, the USA, Asia, and the Middle East.

BDB’s approach was built around a bold idea: make the campaign as surprising as the bag itself. They created a world where “reality met magical realism”. They used techniques like CGI and mixed media to make the content unexpected and “thumb-stopping.”

BDB chose creators in a smart, non-traditional way. They paired three creators known for their personalities and fashion sense with one creator known for their craftsmanship. This mix helped tell a fuller story.

All creators took part in workshops to brainstorm ideas. This made sure the final content felt genuine and creator-led, while still honoring Loewe’s brand heritage.

Billion Dollar Boy case study

The campaign created only 6 high-quality videos, but these videos got a massive 28.2 million plays on Instagram Reels and 29.2 million total impressions.

Moreover, the campaign had an exceptionally high 10% Engagement Rate. It was reported to be 10 times higher than the average, meaning the content deeply matched the audience.

Also, the ads were very cheap to run and achieved a Cost Per Mille (CPM) of just $2.86. 

Billion Dollar Boy Pros and Cons

There’s a lot that BDB does well, and areas it’s lacking in. So let’s take a look:

✅Pros❌Cons
Strong tech platform: Their proprietary tool Companion’ helps find the right creators, track performance, and manage content efficiently.Not ideal for small brands: Their setup is built for scale and polish, which may not suit smaller budgets or quick-turn campaigns.
Global reach: Offices in London, New York, and Copenhagen lets them to run international campaigns with cultural insight.Creative-first, not always performance-first: Their focus leans more toward storytelling and brand building than direct sales or conversions.
Trusted by major platforms: They’re official partners with Meta, TikTok, Pinterest, Snap, and YouTube, keeping them ahead of platform trends.Lifestyle-heavy portfolio: Most of their work is in fashion, beauty, and entertainment; less visibility in B2B or niche sectors.

Conclusion

Ultimately, the best influencer marketing agencies in the UK are the ones with new ideas, creativity, and a clear strategy. 

Based on our research, the best influencer agencies in the UK are: Ainfluencer, Socially Powerful, Billion Dollar Boy, Mindlab, NewGen, The Goat Agency, Purple Goat, Social Chameleon, SevenSix, and Buttermilk.

Review these agencies and, based on your criteria, partner with the one that can reach your goals. 

FAQs

Let’s answer some frequently asked questions about influencer marketing agencies in the UK:  

Q1. What Criteria Should a Brand Use to Select The Best UK Influencer Marketing Agency?

A brand should select an agency based on four key factors: 
1. Demonstrated Expertise (verified case studies in the brand’s vertical), 
2. Technological Capability (proprietary tools for audience analysis), 
3. Transparency (clear reporting and contract terms).

Q2. How Do UK Agencies Use Data to Identify the Best Influencers for a Brand?

UK influencer agencies use proprietary software to analyze audience demographics and engagement metrics (like saves and shares) rather than just follower count. They focus on finding niche-specific creators whose audience is highly relevant to the brand’s target customer, aiming for high conversion potential and measurable return on ad spend (ROAS).

Q3. What Is The Average ROI Brands Can Expect From an Influencer marketing Campaign In The UK?

On average, brands working with an established influencer marketing agency in the UK can expect a return of approximately £5.20 for every £1 spent.
 This return is often highest for campaigns that use performance marketing tactics, such as unique affiliate links and creator-specific discount codes, to directly track sales from social platforms like TikTok and Instagram.

Q4. What Are The Best Influencer Marketing Agencies In The UK For Small Brands?

Top UK influencer agencies for small brands include SevenSix, Social Chameleon, NewGen, and Ainfluencer. These agencies offer flexible pricing, micro-influencer access, and tailored support.