Top 12 Influencer Marketing Agencies in the UK and London (2026)

The best influencer marketing agencies in the UK include The Goat Agency, Billion Dollar Boy, Socially Powerful, Fanbytes by Brainlabs, House of Marketers, Buttermilk, SocialChain, NewGen, Purple Goat, SevenSix and M&C Saatchi Social, plus Ainfluencer, our own service, which is not a UK agency. Nearly all are based in or have an office in London, so this guide also answers the search for an influencer marketing agency in London. It also covers the new ASA, CAP and CMA influencer guide published in 2026.

We read the guides that rank for this search before writing it, and kept the agencies that appear in most of them. Descriptions follow what each agency says on its own website or what Influencer Marketing Hub and The Social Shepherd report. Several of the ranking lists are written by agencies that include themselves, so we treat them as leads, not proof. Campaign figures are the agencies’ own and have not been audited. None of the agencies paid to be listed. Pricing is rarely public, and where it is, we say so.

Best Influencer Agency in the UK by Need

A quick pick before the full list

Influencer Marketing Agencies in the UK at a Glance

The twelve at a glance, in the order they are described below

Best Influencer Marketing Agencies in the UK, Reviewed

1. Ainfluencer: One Account for the UK and Other Markets (our own service)

This one is ours, so read it with that in mind. Ainfluencer is not a British agency. It offers a fully managed influencer and affiliate service plus a self-serve creator marketplace covering Instagram, TikTok and YouTube. Managed packages begin at $7,999 for a month-long campaign with 25 creators, a price shown on its own page. UK rules make brands answerable alongside creators, so ask how every post is checked for a label before it goes live.

• Best for: Brands that want hands-on help, or want to run UK campaigns alongside other markets from one account.
• Pricing: From $7,999 per campaign package

2. The Goat Agency: A London-Born Global Network

An influencer marketing agency founded in 2015 and based in London, with an office in New York. The Social Shepherd lists Tinder, Danone and Audi among its clients and describes end-to-end social-first campaigns designed for every stage of the funnel. Ask for recent UK work in your category rather than the global showcase.

• Best for: Brands that want a large, established network with a London base.
• Pricing: Not public. Quoted per campaign or retainer

3. Billion Dollar Boy: Influencer, Content and Media in One System

On its own site, Billion Dollar Boy calls itself the influencer and creator marketing agency for a social-first world and says creator partnerships, social content, community, commerce and media work as one connected system rather than as separate budgets. It combines influencer expertise with social-first strategy, content and media. Ask how it measures the contribution of creators separately from paid media.

• Best for: Brands that want one team across creators, content and paid social.
• Pricing: Not public

4. Socially Powerful: Global Reach With Its Own Technology

A global social and influencer agency with a London office. Its website lists Amazon, TikTok, L’Oreal, Primark and Red Bull among brands it has worked with, and describes a proprietary tool, ARIA, for real-time campaign tracking and reporting against reach, engagement, traffic and conversions.

• Best for: International brands that want a platform view of results across markets.
• Pricing: Not public

5. Fanbytes by Brainlabs: TikTok-Native Campaigns

Fanbytes is now part of Brainlabs, one of the largest independent digital media agencies, which gives it reach across paid media, data science and creative. The Social Shepherd describes it as a TikTok marketing agency that has worked with Warner Music Group, Missguided and Paramount Network to reach Generation Z. Ask how much of the original TikTok team now sits inside the Brainlabs structure.

• Best for: Gen Z briefs where platform-native creative decides the result.
• Pricing: Not public

6. House of Marketers: A TikTok and Creator Specialist

A UK TikTok and influencer marketing agency founded by an early TikTok employee, per its own site, with campaigns for beauty, gaming, app and software brands. It runs creator campaigns that start on TikTok with Instagram close behind, and it produces creator content for brand profiles and Spark Ads. Influencer Marketing Hub says it was founded in 2020 by former TikTok employees and works in London. The agency also publishes its own agency rankings, so treat any list it writes about itself with care.

• Best for: Beauty, gaming, app and software brands that want TikTok first.
• Pricing: Not public

7. Buttermilk: Instagram and Brand-Fan Campaigns

A London influencer agency. The Social Shepherd reports that it runs influencer and brand-fan campaigns for Dior, Boots and Deliveroo, focuses on Instagram but works on other platforms too, and recently won Best Multi-Channel Campaign at the Influencer Marketing Awards. Check the award year before you quote it.

• Best for: Fashion, beauty and retail brands that lead with Instagram.
• Pricing: Not public

8. SocialChain: Creators, Community and Technology

A UK-based agency established in 2014 and now part of the Brave Bison network, per Influencer Marketing Hub. It says its work integrates creators, community insights and technology, and lists KFC, Amazon Prime Video and WWF among its clients. Ask which parts of a campaign are run by SocialChain staff and which by the wider group.

• Best for: Consumer and entertainment brands that want creators tied to community insight.
• Pricing: Not public

9. NewGen: Gaming and Esports Marketing

On its own site NewGen describes itself as a gaming and esports digital marketing agency that creates strategy, communities, influencer marketing, content, campaigns, events and even product ideas. The Social Shepherd reports offices in London, Manchester and New York, its own talent roster, and clients such as Pringles, Activision and Nestle.

• Best for: Gaming brands and consumer brands targeting gaming audiences.
• Pricing: Not public

10. Purple Goat: Disability-Focused Influencer Marketing

An influencer agency with a distinct focus on disability representation. The Social Shepherd reports that The Drum named it Diversity and Inclusion Company of the Year in 2022 and that it has worked with Virgin Media, Tesco and Meta.

• Best for: Brands that want inclusive, representative creator campaigns.
• Pricing: Not public

11. SevenSix: Talent, Castings and Events

A London agency with a talent roster and a creator club that offers influencer campaigns, castings and guestlists, events and consultancy, per The Social Shepherd. It suits briefs where the creators physically turn up.

• Best for: Event, launch and guestlist campaigns in London.
• Pricing: Not public

12. M&C Saatchi Social: Talent Management and Activation

A London agency that manages social media talent and activates campaigns, per The Social Shepherd. Named clients include Take Five, GB News and L’Oreal Men Expert. Because it manages talent, ask how it avoids conflict between the creators it represents and the ones it recommends.

• Best for: Brands that want direct access to managed talent.
• Pricing: Not public

Other UK Agencies You May See Recommended

These names recur in other rankings, but we could not verify enough about them to give them an entry. The Social Shepherd lists itself among the top UK influencer agencies. Influencer Marketing Factory has an office in London and focuses on TikTok. Instrumental is a London talent-scouting business, 6Degrees is a boutique agency in Copenhagen with a London satellite, and Urban Nerds Collective grew out of London youth promotion. Creative Milkshake, Digital Voices, NC Media, Connect Management, Summer and Ritual Network also appear. Ask each for current client references before you shortlist.

Best Influencer Marketing Agencies in London

London is where almost every agency above is based, so the question is not whether to hire in London but which kind of London agency you need. Match your brief to a type, then read only those entries.

London influencer agencies by what you are buying

London Agency or a UK-Wide One?

Choose a London agency when your campaign depends on being in the room: launches, guestlists, shoots, press days and creators who live in the capital. Choose an agency with UK-wide creators when your customers are spread across the country, since a London roster tends to skew to London audiences. Ask any agency how many of its creators live outside London and Greater London, and how it finds them.

TikTok Marketing Agencies in London

Searches for TikTok agencies in London are common. Fanbytes by Brainlabs and House of Marketers are the two TikTok-first entries here, and Influencer Marketing Factory focuses on TikTok content too. For a wider view, see our guide to TikTok influencer marketing agencies.

UK Influencer Marketing Rules for Brands: What the New ASA, CAP and CMA Guide Changes

The ASA, CAP and CMA have published a new edition of their joint Influencers’ guide to making clear that ads are ads. The core message is unchanged, but the legal basis, the enforcement powers and the focus on fake reviews are new. This summary follows a Lewis Silkin analysis dated 23 October 2026. It is general information, not legal advice, so confirm the details on the ASA and CMA sites.

What changed for brands working with creators who reach UK audiences

• Rewrite your briefs. Remove wording that asks creators to endorse products they have not used, and require a clear label up front.
• Gifting is advertising. A product sent without a fee can still count as payment, so label seeded content. See our guides to gifting versus seeding and product gifting platforms.
• Your agency is part of your risk. Ask how it checks labelling and what its contract says if a creator breaks the rules.

How Much Do Influencer Marketing Agencies in the UK Charge?

Hardly any of these agencies show a price list, and Ainfluencer is the exception with packages from $7,999. With the rest, send the same one-page brief to each and request a written quote that separates the agency fee from the minimum creator budget and any extras, so you can compare the quotes line by line. Our guide to influencer marketing agency pricing models explains how agencies charge.

How to Choose an Influencer Marketing Agency in the UK

• Platform fit. Match the agency’s strongest platform to where your customers are, not to the biggest case study.
• Compliance first. Ask who checks labels before and after posting, and how the agency applies the new guide.
• Evidence. Ask for results with named clients, tied to sales or visits, not only views. Read our influencer marketing KPIs for the numbers worth demanding.
• Independence. Several rankings are written by agencies that list themselves. Ask each agency for references you can call.
• Leaving. Find out who keeps the creator relationships and the content rights if you end the contract.

Questions to Put to Every UK Agency

• Who checks every post’s label, and what happens when one is wrong?
• How do you find creators who live outside London?
• Which results from a campaign in our category can you show us, and what number do they report?
• What is the minimum creator budget, and what do you bill on top of the agency fee?
• Who owns the finished content, and for how long may we use it in paid ads?

Hiring for markets outside Britain as well? See the guides to agencies working in Germany and agencies working in France, or our wider roundup of the best influencer marketing agencies.

Frequently Asked Questions