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Agency Rankings · Updated August 2026

The 10 Best Fashion Influencer Marketing Agencies in UK

Compare the top fashion 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
NOVOS

NOVOS

London, England · Founded 2018 · 10–49 people · hypeandhoney.com ↗

NOVOS delivers eCommerce discovery and growth via SEO, paid media and AI-driven visibility, embedding senior strategists to scale fashion and apparel brands such as TALA and Adidas.

Avg. rating 5 (36 reviews) Named clients 20 Published case studies 14 Min. budget published
93IC Score / 100
2
Impression

Impression

Nottingham, England · Founded 2012 · 50–249 people · impressiondigital.com ↗

Impression applies data-driven experimentation and proprietary tech to performance marketing for fashion and beauty brands, delivering SEO, paid media, digital PR and creative; clients include Clarins and Queensmith.

Avg. rating 4.9 (73 reviews) Named clients 13 Published case studies 12 Min. budget published
92IC Score / 100
3
The One Off

The One Off

Derbyshire, England · Founded 2003 · 50–249 people · theoneoff.com ↗

The One Off is an integrated creative agency delivering branding, digital campaigns, retail design and activations for fashion and footwear brands, working with clients such as FatFace and Crocs.

Avg. rating 4.5 (24 reviews) Named clients 20 Published case studies 18 Min. budget published
92IC Score / 100

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4
OOB

OOB

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

OOB creates strategy-driven social and influencer campaigns, producing culture-led content for lifestyle and fashion brands, with clients including Ann Summers and O'Neill.

Avg. rating 5 (58 reviews) Named clients 20 Published case studies 30 Min. budget published
92IC Score / 100
5
Serotonin

Serotonin

Manchester, England · Founded 2019 · 10–49 people · serotonin.co.uk ↗

Serotonin provides performance-focused digital marketing—strategy, paid media, performance creative and CRO—for fashion and lifestyle brands, working with clients such as ASSOS of Switzerland and LOFT.

Avg. rating 4.5 (38 reviews) Named clients 20 Published case studies 34 Min. budget published
88IC Score / 100
6
GA Agency

GA Agency

London, England · Founded 2019 · 50–249 people · ga.agency ↗

GA Agency provides multilingual SEO, AI-driven search and full-funnel paid media, managing campaigns in-house for fashion labels such as Prada and Intimissimi across global markets.

Avg. rating 5 (21 reviews) Named clients 20 Published case studies 10 Min. budget published
88IC Score / 100
7
The Good Marketer

The Good Marketer

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

The Good Marketer offers outsourced digital marketing for boutique fashion and jewellery retailers, running paid social, email and search campaigns plus content strategy for brands such as Kavee.

Avg. rating 4.9 (155 reviews) Named clients 20 Published case studies 6 Min. budget published
85IC Score / 100
8
Blazon Agency

Blazon Agency

London, England · Founded 2015 · 10–49 people · blazonagency.com ↗

Blazon Agency specializes in end-to-end product launches, ecommerce and crowdfunding campaigns for fashion and lifestyle brands, and has worked with Filippo Loreti and Xiaomi.

Avg. rating 5 (15 reviews) Named clients 12 Published case studies 7 Min. budget published
82IC Score / 100
9
Upturn Growth

Upturn Growth

London, England · Founded 2020 · 2–9 people · upturngrowth.co.uk ↗

Upturn Growth is a data-driven growth and analytics consultancy that manages growth marketing for eCommerce, optimizing acquisition and revenue for fashion brands like Converse and Lacoste.

Avg. rating 5 (2 reviews) Named clients 18 Published case studies 3 Min. budget published
81IC Score / 100
10
COAL

COAL

Birmingham, England · Founded 2008 · 10–49 people · wearecoal.co.uk ↗

COAL in the UK creates streamlined advertising and influencer campaigns for fashion and beauty brands, prioritising creative simplification and measurable commercial value — clients include Chanel and Semilac.

Avg. rating 4.9 (8 reviews) Named clients 20 Published case studies 12 Min. budget published
76IC 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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