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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

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Cantillion King
Cantillion King is a B2B marketing consultancy in Gloucestershire that has worked with engineering, manufacturing and industrial companies across the UK since 1987.
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Why #24 (shared): Based in Gloucestershire, United Kingdom · Founded 1987, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
A&P
Consumer Products & Services · Arts, Entertainment & Music · Advertising & Marketing
A&P has run as an integrated marketing agency in Lancashire, England, since 1990.
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Why #26 (shared): Based in Lancashire, England · Founded 1990, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Kenyons
Creative · Also in Liverpool and Wigan
Kenyons, which trades as K&Co, is a brand communications agency based in Liverpool in the United Kingdom.
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Why #26 (shared): Based in Liverpool, UK · Founded 1990, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Freestone Creative Limited
Consumer Products & Services · Hospitality & Leisure · Retail
Freestone Creative Limited is a design studio serving clients around Milton Keynes, Northampton and Bedford, as well as elsewhere in the UK and abroad.
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Why #28 (shared): Based in Milton Keynes area, UK · In business 35+ years, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Blue Chip Marketing
Consumer Products & Services · Creative · Retail
Blue Chip Marketing is a UK agency that plans and runs below-the-line, shopper and digital marketing for consumer brands selling through retailers.
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Why #28 (shared): Based in United Kingdom · Founded 1991, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
de Winter
Arts, Entertainment & Music · Information Technology · Creative
de Winter is a marketing and creative communications agency based in Chester, in the North West of England.
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Why #28 (shared): Based in Chester, England · In business 35+ years, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Designate
Supply Chain, Logistics, and Transport · Consumer Products & Services · Arts, Entertainment & Music
Designate has run as a Brighton brand agency since 1993, helping companies take their brands from internal planning to something consumers notice and remember.
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Why #31 (shared): Based in Brighton, England · Founded 1993, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
creative agency Thunder
creative agency Thunder is a British graphic design studio that has been working since 1993.
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Why #31 (shared): Based in United Kingdom · Founded 1993, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Ecoutez Creative Limited
Information Technology · Financial Services · Real Estate
Hertfordshire creative consultancy offering branding, graphic design and digital media to large brands and smaller firms
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Why #33: Based in Hertfordshire, England, in a converted barn near Berkhamsted, St Albans, Hemel… · Founded 1994, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Indigo Ross
Arts, Entertainment & Music · Business Services · Web Design · Also in Ipswich and Bury
Indigo Ross is a design, print and web business in Sudbury, Suffolk. It has been operating since 1995 and supports local and national organisations from a single team.
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Why #34: Based in Sudbury, Suffolk, UK · Founded 1995, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
adams marketing
Supply Chain, Logistics, and Transport · Hospitality & Leisure · Financial Services · Also in City of London and London
adams marketing, which trades as Adams Group, is a creative marketing agency in Kent.
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Why #35 (shared): Based in Kent, England · In business 30+ years, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Digital Marketing Advice
Digital Marketing · SEO · Advertising
Digital Marketing Advice, trading as Digital Marketing Wales, advises small and medium-sized businesses in Cardiff and across Wales on online marketing.
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Why #35 (shared): Based in Cardiff, Wales · In business 30+ years, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Electromedia
Energy & Natural Resources · Advertising & Marketing · Creative
Electromedia is a video production and interactive media company based in Cheshire that works for clients throughout the UK.
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Why #35 (shared): Based in Cheshire, UK · In business 30+ years, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Island Marketing Ltd
Island Marketing Ltd is a creative production company in Paddock Wood, Kent, with more than thirty years behind it.
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Why #35 (shared): Based in Paddock Wood, Kent · In business 30+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Iguana Creative
Iguana Creative is a design and print studio in Hemel Hempstead, Hertfordshire. It takes a job from first idea through artwork, production and printing, mostly under a single roof.
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Why #35 (shared): Based in Hemel Hempstead, England · In business 30+ years, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Blast Design
Also in Hackney
London branding and communications agency creating identities, campaigns and digital design for cultural, science and film clients
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Why #35 (shared): Based in London · Founded 1996, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Anew
Creative · Retail · Branding · Also in London
Anew is a London agency that advises luxury and premium brands.
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Why #35 (shared): Based in London · In business 30+ years, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Creativeworld
Advertising & Marketing · Content Marketing · Creative
Creativeworld is a UK design and marketing agency with more than 30 years of practice behind it.
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Why #35 (shared): Based in United Kingdom · In business 30+ years, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
HWB Design
HWB Design is a one-person design practice in Christchurch, run by a graphic designer with more than thirty years of experience.
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Why #35 (shared): Address in United Kingdom · In business 30+ years · One-person, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Brightside Ltd
Consumer Products & Services · Hospitality & Leisure · Business Services · Also in Stratford and Scotland
Brightside Ltd trades as Brightside Print & Design, a commercial printing company working from London and the Midlands.
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Why #35 (shared): Based in London and the Midlands, UK · In business 30+ years, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Carswell Gould
Carswell Gould is an integrated marketing agency in Southampton, Hampshire, combining strategy, creative work, technology and PR.
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Why #35 (shared): Based in Southampton, Hampshire, UK · In business 30+ years, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Good Communications Ltd
Supply Chain, Logistics, and Transport · Arts, Entertainment & Music · Business Services
Good Communications Ltd, trading as Good Comms, is a marketing and creative agency in Chester, England.
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Why #35 (shared): Based in Chester, England · In business 30+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Design Incorporated
Design Incorporated, usually shortened to Design Inc, is a full-service creative and digital agency with offices in London and Salisbury.
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Why #47 (shared): Office in United Kingdom · Founded 1997, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
BlueLevel
Information Technology · Non Profit · Education
BlueLevel is a web design agency in Dorset, in the south of England, that has been building for the web since 1997.
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Why #47 (shared): Based in Dorset, England · Founded 1997, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.

For vendors

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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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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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Every other way we rank advertising companies, by what they do and where they are.

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

Top Advertising Companies in the UK

Cantillion King

A&P

Kenyons

Freestone Creative Limited

Blue Chip Marketing

de Winter

Designate

creative agency Thunder

Ecoutez Creative Limited

Indigo Ross

adams marketing

Digital Marketing Advice

Electromedia

Island Marketing Ltd

Iguana Creative

Blast Design

Anew

Creativeworld

HWB Design

Brightside Ltd

Carswell Gould

Good Communications Ltd

Design Incorporated

BlueLevel

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