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Top Advertising Companies in the UK

188 of 497 advertising companies ranked on evidence in the Q4 2026 edition.

We list 23 advertising companies in the UK. The order comes from what each firm publishes and what has been verified about it, never from payment — at the top right now: Hydrant, CRISP and KAT Marketing.

Before you shortlist, check

Campaigns they ran for businesses your size, with results you can verify
How media is bought, and whether they take commission or rebates on it
Who owns the creative, and for how long you can use it
The reporting you will get, and from whose systems

TrustList ranking

Q4 2026 edition

188 of 497 advertising companies ranked on evidence held on 9 October 2026: client reviews, vetting, awards and facts each business states on its own website, which we read and date. Nobody pays to be placed.

Positions are fixed for the quarter; the next edition is due in January 2027.

How this is ranked About this edition

All advertising companies 188 ranked SMEs 187 ranked

The SME ranking on this page lists 473 small and medium-sized agencies, and 101 of them earned a rank number. One business known to be large is left out, and the SME order does not reward age. See the SME ranking

Filter by fitbudget, engagement, size and more

Congo Social
Consumer Products & Services · Business Services · Retail · Also in Holborn and London
Congo Social is a social media management and marketing agency in London with more than a decade of experience growing brands.
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Why #168 (shared): Based in London · In business 10+ years, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Johnsons Marketing
Energy & Natural Resources · Hospitality & Leisure · Non Profit
Johnsons Marketing is a creative agency based in Manchester that works with small and medium-sized businesses across the UK.
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Why #168 (shared): Based in Manchester, UK · In business 10+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Highscore
Advertising & Marketing · Information Technology · Web Design · Also in Hong Kong and London
Highscore is a web design agency in Kent. It designs and builds responsive WordPress websites, and its clients are spread across Kent, London, Essex, Sussex, Surrey and the rest of…
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Why #168 (shared): Based in Kent, England · In business 10+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Ahoy
Ahoy is a Manchester agency that combines research, brand strategy, design and digital work.
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Why #168 (shared): Based in Stockport, Manchester · In business 10+ years, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
KhojTech
Creative · Branding · Responsive · Also in Texas
KhojTech is a branding agency with offices in Canada, the USA and the UK.
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Why #168 (shared): Based in Canada, the USA and the UK · In business 10+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
iDentityCreative
Consumer Products & Services · Arts, Entertainment & Music · Advertising & Marketing · Also in Cambridge
iDentityCreative is a full-service creative agency working from a studio in Saffron Walden, close to Cambridge.
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Why #168 (shared): Based in Saffron Walden, Essex · In business 10+ years, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
BOXmedia
Supply Chain, Logistics, and Transport · Arts, Entertainment & Music · Creative · Also in Leeds
BOXmedia plans, films and distributes video for UK companies, and judges its work by the sales leads it produces rather than views.
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Why #168 (shared): Based in Leeds, UK · In business 10+ years · Founder-led, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
CDC IT Services
Digital Marketing · IT Services · SEO · Also in Washington and New York
CDC IT Services is a UK web and digital marketing agency with offices listed in London, Florida and India.
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Why #168 (shared): Based in United Kingdom · In business 10+ years, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Identify Web Design
Identify Web Design is the earlier name of a web agency that now trades as Identify Digital.
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Why #168 (shared): Address in United Kingdom · In business 10+ years, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Big Group
Best for: Brand events and experiences
Arts, Entertainment & Music · Hospitality & Leisure · Financial Services
London experiential, creative and digital marketing agency producing brand events, social campaigns and technology-led experiences
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Why #178: Based in London · ISO 9001, ISO 27001, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Ares Projects
Best for: Brands selling on Amazon
Ares Projects runs Amazon accounts on behalf of brands, working from the UK and supporting sales on Amazon in markets around the world.
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Why #179: Based in UK · Team of 40+ · Client numbers stated on its own website, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Avenue Digital
Best for: Ecommerce and lead-generation brands
Consumer Products & Services · Financial Services · Education
Avenue Digital is a performance marketing agency in London that grows online sales for ecommerce and lead-generation brands.
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Why #180 (shared): Based in London, UK · Google partner, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Cream Media
Consumer Products & Services · Arts, Entertainment & Music · Hospitality & Leisure
Cream Media, trading as Cream, is an independent full-service advertising agency in London with B Corp status.
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Why #180 (shared): Based in London · professional accreditation, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
AB...
Consumer Products & Services · Arts, Entertainment & Music · Non Profit
AB... is the listing for AB, a brand and marketing agency with studios in Exeter and London that holds B Corp certification.
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Why #180 (shared): Based in Exeter and London · professional accreditation, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Kinetic Communications
Business Services · Medical
Kinetic Communications is a public relations and communications consultancy based in Birmingham.
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Why #180 (shared): Based in Birmingham, UK · ISO 9001, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Glowworm Digital
Glowworm Digital is a paid media agency in Manchester that runs pay-per-click search and paid social campaigns for companies and marketing agencies across the UK.
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Why #180 (shared): Based in Manchester · Google partner, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Conversio
Arts, Entertainment & Music · Advertising & Marketing · Business Services
Conversio is a London agency that runs optimisation, experimentation and analytics programmes for ecommerce brands.
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Why #180 (shared): Based in London, United Kingdom · professional accreditation, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Haych Enterprises Ltd.
Haych Enterprises Ltd. is a consultancy-led digital marketing agency serving Brighton and London. Its team says it has worked online for more than 24 years.
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Why #180 (shared): Based in Brighton and London, United Kingdom · Google partner, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Ink Copywriters Ltd.
Arts, Entertainment & Music · Financial Services · Creative
UK brand-writing agency producing copywriting, tone of voice and brand narrative work for businesses in the UK, EU and US
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Why #180 (shared): Based in United Kingdom · professional accreditation, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Alexander Advertising Int. Ltd
Best for: Schools and education employers
Energy & Natural Resources · Web Design · Education
Alexander Advertising Int. Ltd, now trading as AAI Media, is an independent UK agency that specialises in recruitment marketing.
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Why #180 (shared): Based in United Kingdom · Google partner, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Also listed, not yet ranked. We hold nothing checkable on these yet that ranks them here: no client review, vetting, award, expert review, or fact stated on their own website (and on a place ranking, where they are based). They follow in order of their TrustList Score. How TrustList ranks · Get vetted, free
Bite Digital
Consumer Products & Services · Advertising & Marketing · Hospitality & Leisure · Also in Romania
Bite Digital builds e-commerce websites that connect directly to a client's ERP system and to online marketplaces, for both business and consumer sales.
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On record: In business 19+ years · Client numbers stated on its own website, as stated on its own website, read 28 Sept 2026
McCann Birmingham
Social Media Marketing · Web Design · Digital Marketing
McCann Birmingham is part of the McCann agency network and its UK arm, described as a large integrated marketing communications agency.
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On record: Founded 1912, as stated on its own website, read 5 Oct 2026
The Student Room Group
Social Media Marketing · Web Design · Web Development
The Student Room Group runs The Student Room, an online community where UK students discuss study, university choices, life around learning and careers.
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On record: In business 20+ years, as stated on its own website, read 5 Oct 2026
MiQ Digital Ltd.
Search Engine Optimization · Digital Marketing · UI/UX Design
MiQ Digital Ltd. is a programmatic media company that helps advertisers and agencies plan and run digital campaigns.
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On record: In business 16+ years, as stated on its own website, read 6 Oct 2026

For vendors

Want to see your company here?

The order is earned on evidence: client reviews, vetting, awards and the facts a business states on its own website, which we read and date. Nobody can pay to move up. Add reviews or verified facts to your free profile to move up at the next edition; there are two ways to stand out now, and each one says what it is.

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A Sponsored card above the ranked list, up to three per ranking
Marked Sponsored, and it never changes the order
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How is this ranking worked out?

The order comes from what each firm publishes and what has been verified about it, and never from payment:

Profile completeness: the details a buyer needs to judge a firm — what it does, who it serves, how it prices, who it has worked for
Earned trust: verification, awards and the other checks a firm has actually passed
Client reviews, where they exist: the rating is smoothed, so one five-star review cannot outrank a firm with a hundred good ones, and volume counts with diminishing returns

Client reviews are still rare across this catalogue, so on most lists today the order is set by the first two. A firm near the top is the best-documented and best-verified one we hold, which is not the same claim as the best one to hire. Use the list to build a shortlist, then check the firms yourself.

Sponsored listings are labelled and shown apart from this list. How rankings work

Only firms whose profile names the UK are counted here, so a firm that lists a town but no country is not yet included.

Where else can I look?

The same list elsewhere: India (92) · Canada (41) · Australia (28).

Every category in the UK: the UK country page.

Top B2B companies in the UK38 categories ranked, 2,075 companies

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Everything here links back to the same verified catalogue. Pick your next stop.

Top Advertising Companies in the UK

Congo Social

Johnsons Marketing

Highscore

Ahoy

KhojTech

iDentityCreative

BOXmedia

CDC IT Services

Identify Web Design

Big Group

Ares Projects

Avenue Digital

Cream Media

AB...

Kinetic Communications

Glowworm Digital

Conversio

Haych Enterprises Ltd.

Ink Copywriters Ltd.

Alexander Advertising Int. Ltd

Bite Digital

McCann Birmingham

The Student Room Group

MiQ Digital Ltd.

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How is this ranking worked out?

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