Find the agency
you're looking for.
Search 0 vetted UK marketing agencies by service, industry, location, or holding group. Free for brands. Honest about who owns whom.
Four ways to find your agency.
Most directories give you a search bar. We give you four pathways - including the only one that tells you which holding group an agency really belongs to.
By ownership.
The only directory that maps which agencies belong to WPP, Publicis, Omnicom, and other holding groups - and which stand alone.
By service
Disciplines grouped by buyer goal. From SEO and PPC to UX, branding, and programmatic media.
By industry
Filter agencies who understand your sector. From AI to FMCG, healthcare to luxury.
By location
Local expertise where you need it, national reach where you want it. UK-wide.
A glimpse of what's in the index.
Agencies that have claimed and verified their listing. Refreshed weekly.
Searching for a result-oriented branding + creative consultancy? We are an award-winning, no-nonsense strategic and creative consultancy transforming what makes you unique into rocket fuel for growth. Our expertise crosses strategy, design, digital, print and the physical environment. Everywhere your audience goes and everywhere you need to be.
Nest Content is a UK SEO and AI search agency for service businesses. We run managed SEO, AI search visibility (GEO), content and citations, with a weekly report and a live dashboard on each client's own Search Console data. Founded by Robin Laires.
Established in 1999, Underscore is a cohesive collective of strategic thinkers, collaborating intensively with international partners and clients. We aim to craft engaging brand and digital strategies that captivate attention and achieve critical objectives. Our proficiency lies in attentive listening, strategic planning, and an unswerving focus on putting the "audience first" to ensure brands res
Coda is a global marketing communications agency and consultancy serving the industrial B2B sector. With unrivalled heritage and sector experience, they offer a sought-after combination of deep scientific and technical sector knowledge, digital expertise and sharp creativity. They deliver the branding and pipeline growth that powers some of the worlds best industrial brands.
We’re a Derby-based digital marketing agency helping ambitious brands grow and scale with confidence. From smart strategies to expert execution, we craft tailored marketing strategies that turn clicks into long-term customers. We’re more than just a digital marketing company – we’re an extension of your team.
Search Theory is a new innovate search agency based in Manchester, offering SEO, Digital PR and Paid Advertising services UK-Wide. We believe in the theory of search and how it works, so we can apply tried and tested strategies to our clients businesses - giving them the best chance of success and the visibility they deserve online to generate a return on their investment.
Advisory services for when the directory isn't enough.
RFP & Pitch Support
We help brands run better pitches. From writing the brief, to drawing up the shortlist, to evaluating responses against the criteria that actually predict success.
Agency Due Diligence
Independent vetting before you commit. Capability, financial stability, culture, performance. The questions you'd ask if you had time to ask them.
Field notes from across the UK landscape.
"Get lazy and you'll be eaten by AI": Richard Michie, The Marketing Optimist
The founder of The Marketing Optimist on starting out after redundancy, why his clients stay for five years on average, and his pledge never to use AI as the final output.
"We'd accidentally started a social media agency": Phil Treagus-Evans, Giraffe Social
The co-founder of Giraffe Social on a failed social network, the mistake of treating other agencies as rivals, and enquiries that now arrive by way of ChatGPT.
Best SEO Agencies in London (2026): 15 Scored and Reviewed
We scored 15 of the best SEO agencies in London for 2026 against six criteria, then mapped them to what you actually need: ecommerce, B2B, technical, enterprise, local or AI search. An independent, transparent ranking.
Get listed in the index.
Free listings for every UK marketing agency. Claim your entry to unlock verified status, edit your profile, and respond to enquiries.
A monthly note on the UK agency landscape.
New entries to the index, notable holding-group moves, and our editor's pick of long-form.