Companies · category

Top Advertising Companies in London

40 of 141 advertising companies ranked on evidence in the Q4 2026 edition.

TrustList ranking

Q4 2026 edition

40 of 141 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

Flagship ranking · Q4 2026 edition

This page ranks advertising companies in London, a mix of creative agencies, branding studios, production houses and digital marketing consultancies. TrustList lists 138 of them, and 25 earned a rank number in the Q4 2026 edition. Among the ranked, four hold a professional accreditation and three are Google partners, while one each cites ISO 9001, ISO 27001 and Cyber Essentials. Nineteen state a founding date, from the 1960s to the 2010s, with eight from the 2000s. Eighteen are based in London, and the rest name places such as Glasgow, Leeds, Brighton and Exeter.

Places follow the evidence TrustList held on 5 October 2026: client reviews, vetting, awards and facts each agency states on its own website, which we read and dated. Nobody pays to be placed. A listing with nothing checkable is shown but not ranked, and positions are fixed until the January 2027 edition. An agency can move up by adding client reviews or verified facts to its free profile.

By TrustList Editorial

All advertising companies 40 ranked SMEs 40 ranked

The SME ranking on this page lists 137 small and medium-sized agencies, and 25 of them earned a rank number. One business known to be large is left out. The SME order does not reward age, so newer agencies compete on evidence alone. See the SME ranking

Filter by fitbudget, engagement, size and more

The top three

1
Affinity Agency
- Norwich, with offices in Birmingham and London
- Founded 1986
- Google partner
- Team of 40+
View profile
2
Don’t Panic
Best for: Charities and purpose-driven brands
Works with charities, causes and purpose-driven brands, drawing on deep knowledge of the charity sector.
- London, United Kingdom
- Founded 2003
- professional accreditation
View profile
3
DOOH
Best for: Digital out-of-home campaigns
Creative studio devoted to one medium: digital out-of-home advertising on outdoor and public screens.
- London
- Founded 2014
- Cyber Essentials
View profile

Affinity Agency
eCommerce · Branding · Production · Also in Norwich
Affinity Agency is a full-service marketing and web agency headquartered in Norwich, with further offices in Birmingham and London.
Write a review
Why #1: Based in Norwich, with offices in Birmingham and London · Founded 1986 · Google partner · Team of 40+, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Don’t Panic
Best for: Charities and purpose-driven brands
Don’t Panic is a strategy and creative agency in London whose campaigns aim to reframe social issues and prompt people to act.
Write a review
Why #2: Based in London, United Kingdom · Founded 2003 · professional accreditation, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
DOOH
Best for: Digital out-of-home campaigns
Creative · Production
DOOH is a creative studio devoted to one medium: digital out-of-home advertising, meaning campaigns that play on outdoor and public screens.
Write a review
Why #3: Based in London · Founded 2014 · Cyber Essentials, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Creative Marketing Services
Best for: Brands wanting a full-service agency
Creative Marketing Services is a full-service marketing agency in Leeds that has been building brands since 1982.
Write a review
Why #4: Based in Leeds, with a presence in London · Founded 1982 · Team of 20+, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Waste
Web Design · Web Development · UI/UX Design · Also in United Kingdom
Waste is an independent digital creative agency founded in 2006.
Write a review
Why #5: Based in London and Los Angeles · Founded 2006 · Team of 70+, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
Feref
Best for: Entertainment brands
Arts, Entertainment & Music · Social Media Marketing · Search Engine Optimization · Also in United Kingdom
Feref is a creative agency founded in 1968 and based in Soho, London, working on campaigns for entertainment brands. It is now part of the Delta Group.
Write a review
Why #6: Based in Soho, London · Founded 1968, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Gilroy Corporate Communications
Arts, Entertainment & Music · Information Technology · Creative
Gilroy Corporate Communications, which trades as Gilroy, is a B2B marketing agency that helps large brands win new accounts, grow existing ones and hold on to customers for longer.
Write a review
Why #7: Based in London (Waterloo office) · In business 50+ years, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Lavery Rowe Advertising
Advertising
Lavery Rowe Advertising is a UK agency that specialises in direct response advertising, meaning campaigns designed to win new customers and generate leads.
Write a review
Why #8 (shared): Based in London and Birmingham, UK · In business 40+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Dalziel and Pow
Consumer Products & Services · Advertising & Marketing · Non Profit
Dalziel and Pow, often shortened to D&P, is an independent strategy and design studio working from London with clients around the world.
Write a review
Why #8 (shared): Based in London, UK · In business 40+ years, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Blast Design
Best for: Cultural, science and film clients
Also in Hackney
London branding and communications agency creating identities, campaigns and digital design for cultural, science and film clients
Write a review
Why #10 (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 · Advertising
Anew is a London agency that advises luxury and premium brands.
Write a review
Why #10 (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.
Brightside Ltd
Consumer Products & Services · Hospitality & Leisure · Business Services · Also in Scotland and Stratford
Brightside Ltd trades as Brightside Print & Design, a commercial printing company working from London and the Midlands.
Write a review
Why #10 (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.
Design Incorporated
Best for: Aviation and B2B brands
Design Incorporated, usually shortened to Design Inc, is a full-service creative and digital agency with offices in London and Salisbury.
Write a review
Why #13 (shared): Office in London · Founded 1997, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Fabrik Brands
Best for: Brand strategy, naming, identity
Creative · Advertising · Branding
Fabrik Brands is a brand consultancy in London that has worked since 1997.
Write a review
Why #13 (shared): Based in London, UK · Founded 1997, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Ic Design
Consumer Products & Services · Hospitality & Leisure · Business Services · Also in Wales and Nice
IC Design is a London creative agency that handles branding, website design and marketing literature.
Write a review
Why #15: Based in London, England · Founded 1998, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
WT
Way To Blue
Social Media Marketing · Mobile App Development · Digital Marketing · Also in United Kingdom
Way To Blue is an independent communications agency within the Miroma Group. It began in 1999 marketing films and has since added work for consumer brands.
Write a review
Why #16: Office in London · Founded 1999, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
Another Film Company
Best for: Commercials and branded film
Another Film Company is a London production house representing a small roster of UK commercials directors.
Write a review
Why #17: Based in London, United Kingdom · Founded 2001, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Grain Creative
Consumer Products & Services · Advertising & Marketing · Business Services
London branding agency specialising in naming, identity and digital work, with focus on luxury, property and education clients
Write a review
Why #18 (shared): Based in London, England · Founded 2002, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Branding Boutique
Consumer Products & Services · Business Services · Real Estate
Branding Boutique is a creative agency and brand communications consultancy with bases in Glasgow and London.
Write a review
Why #18 (shared): Based in Glasgow and London, United Kingdom · Founded 2002 · Boutique, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Here and Now 365
Consumer Products & Services · Advertising & Marketing · Financial Services
Here and Now 365 is a London advertising and marketing agency specialising in multicultural audiences in Britain. Manish Tiwari founded it in 2005.
Write a review
Why #20 (shared): Based in London, United Kingdom · Founded 2005, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
BMB London
BMB London is a creative agency in London, set up in 2005, that makes advertising built on the idea that the most human brand wins.
Write a review
Why #20 (shared): Based in London, UK · Founded 2005, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Cardell Media
Cardell Media is a digital marketing agency focused on small and medium-sized enterprises, with offices in London and San Diego.
Write a review
Why #22 (shared): Office in London · In business 20+ years, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Cavendish Media Limited
Digital Marketing
Cavendish Media Limited is a London agency that places legal and public notices, runs recruitment advertising and delivers digital marketing, with multilingual staff handling work…
Write a review
Why #22 (shared): Based in London, United Kingdom · In business 20+ years, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Alex Chilton Design
Alex Chilton Design is a design agency describing itself as based in west London, with a team of designers, developers and other creatives working across print and online.
Write a review
Why #22 (shared): Based in west London, with an address in Hampshire · In business 20+ years, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.

The top ten at a glance

As each business states it on its own website, read by TrustList for this edition.

#	Business	Based in	Since	Accreditations	Best for
1	Affinity Agency	Norwich, with offices in Birmingham and London	1986	Google partner
2	Don’t Panic	London, United Kingdom	2003	professional accreditation	Charities and purpose-driven brands
3	DOOH	London	2014	Cyber Essentials	Digital out-of-home campaigns
4	Creative Marketing Services	Leeds, with a presence in London	1982	None stated	Brands wanting a full-service agency
5	Waste	London and Los Angeles	2006	None stated
6	Feref	Soho, London	1968	None stated	Entertainment brands
7	Gilroy Corporate Communications	London (Waterloo office)	50+ yrs	None stated
=8	Lavery Rowe Advertising	London and Birmingham, UK	40+ yrs	None stated
=8	Dalziel and Pow	London, UK	40+ yrs	None stated
=10	Blast Design	London	1996	None stated	Cultural, science and film clients

How to choose advertising companies

1. Match the agency to the job
Brand identity, media buying, performance marketing and film production are different trades. Ask which one the agency does most often and to see recent work for a client like you.
2. Ask who does the work
Find out who will be on your account day to day, whether work is done in-house or by freelancers, and who signs off creative before it reaches you.
3. Understand how fees are set
Agencies charge by retainer, project fee, hourly rate or commission on media. Ask for a written scope, what counts as extra, and whether media spend passes through at cost.
4. Check ownership of the work
Ask in writing who owns the finished creative, the ad accounts and the data once the contract ends, and what you can take with you if you leave.
5. Look for UK advertising standards
UK advertising must follow the ASA codes and, where data is used, UK data protection rules. Ask how the agency checks claims, consent and influencer disclosures before launch.
6. Agree how results are reported
Agree which measures matter, how often you receive reports and who sees the raw figures. Ask for notice terms so you can leave if the work is not delivering.

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.

Get vetted

Free

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

Apply for vetting How vetting works

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

Sponsor this ranking See prices

Same subject

More advertising companies rankings

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

All 356 rankings

Articles

More categories

Jump to another ranked category.

All categories

Keep exploring

More on TrustList

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