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Agency Rankings · Updated August 2026

The 10 Best Influencer Marketing Agencies in UK

Compare the top influencer marketing agencies in United Kingdom for 2026 — ranked by client reviews, pricing, campaign results, and verified brand clients

1,000+ agencies evaluated 6 scoring factors 15,000+ client reviews analyzed
What the score bar shows
Client reviews 25% Verified clients 20% Campaign results 15% Pricing transparency 10% Team size and seniority 10%
★ Best Overall
1
RevWise

RevWise

Colchester, England · Founded 2023 · 50–249 people · hypeandhoney.com ↗

RevWise manages affiliate programmes and TikTok Shop commerce for ecommerce brands, handling partner recruitment, commission strategy, campaign execution and store setup; clients include Vitl and Gear4Music.

Avg. rating 5 (25 reviews) Named clients 19 Published case studies 19 Min. budget published
95IC Score / 100
2
OOB

OOB

London, England · Founded 2018 · 10–49 people · ourownbrand.co ↗

OOB is a social media agency that develops strategy-led content and culture-driven campaigns for consumer brands, with strong TikTok and short-form expertise (clients include Ann Summers, Sonos).

Avg. rating 5 (58 reviews) Named clients 20 Published case studies 30 Min. budget published
95IC Score / 100
3
BOUTIQUE

BOUTIQUE

Leeds, England · Founded 2012 · 10–49 people · weareboutique.co.uk ↗

Boutique delivers influencer-led media, digital, PR and social campaigns for consumer and retail brands, blending strategic activations with data-driven insights for clients like Black + Decker and Otty.

Avg. rating 4.7 (6 reviews) Named clients 20 Published case studies 9 Min. budget published
93IC Score / 100

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4
Noise Media Group

Noise Media Group

London, England · Founded 2018 · 10–49 people · noisemediagroup.co.uk ↗

Noise Media Group is a social‑first agency combining paid media, creative and content production to run integrated, full‑funnel influencer and performance campaigns that scale D2C brands, including Just Eat and Davines.

Avg. rating 4.8 (18 reviews) Named clients 20 Published case studies 13 Min. budget published
92IC Score / 100
5
Accuracast

Accuracast

London, England · Founded 2004 · 10–49 people · accuracast.com ↗

Accuracast provides international digital marketing—market-entry strategy, multilingual SEO, paid media and martech consulting—for B2B and consumer brands operating across countries; clients include American Express and Vodafone.

Avg. rating 5 (30 reviews) Named clients 20 Published case studies 7 Min. budget published
91IC Score / 100
6
Spin Brands

Spin Brands

London, England · Founded 2016 · 50–249 people · spinbrands.com ↗

Spin Brands is a creative-first social and influencer agency that blends data-led insight with content and strategy to craft culture-driven campaigns for global consumer and entertainment brands like Google and Diageo.

Avg. rating 4.8 (59 reviews) Named clients 20 Published case studies 14 Min. budget published
91IC Score / 100
7
Favoured

Favoured

London, England · Founded 2017 · 10–49 people · favoured.co.uk ↗

Favoured combines performance-focused influencer and creative services with in-house video and TikTok production to deliver full-funnel advertising, email and website optimisation for consumer brands such as Durex UK and teapigs.

Avg. rating 4.6 (40 reviews) Named clients 20 Published case studies 61 Min. budget published
90IC Score / 100
8
Bound to Prosper

Bound to Prosper

London, England · Founded 2021 · 2–9 people · boundtoprosper.com ↗

Bound to Prosper is a women-founded London PR and influencer agency creating insight-led storytelling, PR, influencer campaigns and digital press-office support for lifestyle and wellbeing brands like Wagamama and Wild Nutrition.

Avg. rating 5 (15 reviews) Named clients 19 Published case studies 11 Min. budget published
87IC Score / 100
9
303

303

London, England · Founded 2015 · 10–49 people · 303.london ↗

303 is a creative-led digital agency for premium brands, producing content, social, email and media-buying campaigns that blend creative strategy with performance-driven execution; clients include Bonhams and Sigma Sports.

Avg. rating 4.2 (16 reviews) Named clients 10 Published case studies 6 Min. budget published
86IC Score / 100
10
Growthcurve

Growthcurve

London, England · Founded 2017 · 10–49 people · growthcurve.co ↗

Growthcurve builds data-driven, tech-forward influencer and growth campaigns that blend culture and creativity for tech and entertainment brands, working with clients such as Coinbase and Marmalade Game Studio.

Avg. rating 4.9 (42 reviews) Named clients 15 Published case studies 4 Min. budget published
86IC Score / 100

How we score agencies

Every agency gets an IC Score out of 100, built from seven weighted factors. All inputs come from publicly available information — review platforms, the agencies' own websites. Scores are refreshed monthly.

25%

Client reviews

Average rating across major review platforms, adjusted for review volume so 5 reviews can't beat 300.

20%

Verified clients

Named clients and brand logos we could verify against public sources.

15%

Campaign track record

Published case studies with concrete, checkable results.

10%

Pricing transparency

Published pricing, minimum budgets, or rate ranges score higher than "contact us."

20%

Niche specialization

Share of public work and case studies in this specific niche.

10%

Team & stability

Years in operation and team size, from public company information.

Scores reflect publicly available information as of August 2026 and are opinions based on the methodology above, not statements of fact about service quality.

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