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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.

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

Only businesses that have told TrustList match a filter. Filters never change the order or a score.

  1. 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
  2. Eight Arms logo

    Consumer Products & Services · Arts, Entertainment & Music · Advertising & Marketing

    Eight Arms designs brands and websites for organisations in the UK and abroad. The studio is based in London and Dorset.

    On record: Based in London and Dorset, UK

  3. ellodave Branding & Design logo

    Business Services · Real Estate · Retail

    ellodave Branding & Design is a creative agency based in Staffordshire.

    On record: Based in Staffordshire, England

  4. Emotio Design Group Ltd. logo

    Consumer Products & Services · Arts, Entertainment & Music · Advertising & Marketing

    Emotio Design Group Ltd., trading as Emotio, is a creative digital and brand agency in the north west of London.

    On record: Based in North West London

  5. Endeavour logo

    Consumer Products & Services · Hospitality & Leisure · Business Services · Also in Lyon and Nice

    Endeavour is a design agency based in London with a global outlook.

    On record: Based in London, England

  6. Equinox Communications UK logo

    Equinox Communications UK is a communications agency in Wales that works in both English and Welsh.

    On record: Based in Wales

  7. eric witham design and marketing logo

    Consumer Products & Services · Advertising & Marketing · Business Services

    Eric Witham Design and Marketing is a freelance brand consultancy in Glasgow.

    On record: Based in Glasgow

  8. Escrivo Internet Consulting logo

    Advertising & Marketing · Information Technology · eCommerce

    Escrivo Internet Consulting is the practice of Cameron Leask, an independent enterprise Agile coach, consultant, trainer and product owner based in Edinburgh.

    On record: Based in Edinburgh, UK

  9. Evident Art Advertising Agency logo

    eCommerce · Advertising · Production · Also in Eastbourne and London

    Evident Art Advertising Agency is a web design company based in London, with designers also in Eastbourne, East Sussex.

    On record: Based in London, England

  10. EVM logo

    Consumer Products & Services · Arts, Entertainment & Music · Advertising & Marketing

    EVM makes and installs signage, display graphics, joinery and fit-out components from its own premises in Glasgow.

    On record: Based in Glasgow, Scotland

  11. Evoluted logo

    Consumer Products & Services · Arts, Entertainment & Music · Energy & Natural Resources

    Evoluted is a full-service ecommerce agency that combines marketing, design and development in one team.

    On record: Address in United Kingdom

  12. Evonomie logo

    Consumer Products & Services · Business Services

    Evonomie is a UK digital marketing consultancy. It advises organisations on how to plan and run their online marketing, from an initial strategy through to a working plan.

    On record: Based in United Kingdom

  13. Ewens logo

    Creative

    Ewens is an independent creative agency based in East Yorkshire, working with clients in the UK and abroad.

    On record: Based in East Yorkshire, England · Small team

  14. family logo

    Consumer Products & Services · Medical · Education

    family is an advertising and communications agency that helps organisations sharpen their brand and turn it into campaigns.

    On record: Address in United Kingdom · Owner-run

  15. Fanatic Design Limited logo

    Hospitality & Leisure · Information Technology · Financial Services

    Fanatic Design Limited, which trades as Fanatic, is a creative agency based in Bristol.

    On record: Based in Bristol, England

  16. Fandango Digital logo

    Advertising & Marketing · Business Services · Information Technology · Also in Chichester and Reading

    Fandango Digital is a digital marketing agency based in Chichester, West Sussex.

    On record: Based in Chichester, West Sussex, England · Small team

  17. Fantastic Media logo

    Advertising · Production · CMS

    Fantastic Media is an integrated marketing agency in the centre of Leeds.

    On record: Based in Leeds, England

  18. FDG Creative Ltd logo

    Arts, Entertainment & Music · Energy & Natural Resources · Financial Services · Also in Dorking

    FDG Creative Ltd is a small full-service creative and marketing agency based in Dorking, with a link to London. It often acts as a client's outsourced marketing department.

    On record: Based in Dorking, United Kingdom · Small agency

  19. Fido PR logo

    Supply Chain, Logistics, and Transport · Arts, Entertainment & Music · Real Estate

    Fido PR is a UK public relations consultancy for the culture, heritage and arts sectors. It also handles destinations and attractions.

    On record: Based in United Kingdom

  20. Fifty3 Design logo

    Consumer Products & Services · Hospitality & Leisure · Creative

    Fifty3 Design is a small, independent creative studio in Yorkshire. It creates and positions brands, and its approach draws on behavioural science and consumer psychology.

    On record: Based in Yorkshire, UK

  21. Fimmick logo

    Consumer Products & Services · Advertising & Marketing · Digital Marketing

    Fimmick is a digital marketing agency headquartered in Hong Kong, with further offices in the UK and Taiwan.

    On record: Based in Hong Kong, with offices in the UK and Taiwan

  22. Finn Comms logo

    Creative · Retail · Collaboration

    Finn Comms is a marketing and communications agency in Leeds that specialises in food and beverage brands selling through UK retailers.

    On record: Based in Leeds, England

  23. Firefly Design Agency logo

    Consumer Products & Services · Advertising & Marketing · Hospitality & Leisure · Also in Scotland

    Firefly Design Agency is a branding and digital design agency based in Edinburgh, Scotland.

    On record: Based in Edinburgh, Scotland

  24. Firefly New Media UK logo

    Lead Generation · Advertising · WordPress · Also in Coventry

    Firefly New Media UK is a publisher and business consultancy that operates a network of 172 local magazine titles across the UK, Poland and Ireland.

    On record: Address in United Kingdom

  25. Fireworx logo

    Supply Chain, Logistics, and Transport · Consumer Products & Services · Energy & Natural Resources · Also in Norwich and Bournemouth

    Fireworx is a growth-focused marketing agency working from offices in London and Bournemouth, Dorset.

    On record: Based in London and Bournemouth, Dorset

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.

Not on TrustList yet? Add your company or claim its listing, free.

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  • We check your registration, your website and your clients
  • Approved listings show the Verified badge here and on their profile
  • It earns a rank number and counts towards the TrustList Score; renewed yearly

Sponsor this ranking

Paid · always labelled

  • A Sponsored card above the ranked list, up to three per ranking
  • Marked Sponsored, and it never changes the order
  • Booked by the month; cancel any time

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.

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