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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.

UnitedPress.uk, established in 2001, is a London-based PR agency specialising in guaranteed publications, media coverage, reputation management, and brand visibility. We help businesses, entrepreneurs, and professionals build credibility and authority through strategic PR campaigns and trusted media placements.

Foster & Scott is a creative marketing agency that helps brands stand out. In a world where so much marketing looks and sounds the same, we create work that gets noticed and gives people a reason to stop. You get the strategic thinking and creative quality you would expect from a larger agency, combined with the flexibility, responsiveness and straightforward communication of a smaller team.

Lead Gen Specialists, a premier telemarketing and lead generation agency, is strategically located in Witham, Essex and Southport, Merseyside. Their unique selling point lies in their unscripted telemarketing technique, which fosters authentic interactions with key decision-makers and yields top-tier sales appointments. This innovative agency offers an extensive range of services, including B2B telemarketing

We're an established expert communications business that improves commercial capability through design, brand and digital solutions. For over 40 years we’ve dedicated ourselves to helping our clients communicate effectively, so that they position themselves with clarity, engage more closely with their audiences, sell more of what they do and successfully grow or transform their businesses.

Mitchell & Stones is an Outsourced Marketing Department for ambitious businesses that need more than a generalist hire but aren't ready to build a full in-house team - giving clients a complete marketing function (strategy, content, social media, paid advertising, SEO, AI search, design and more) for a fraction of the cost of a single marketing salary. Based in Southampton and working with clients UK-wide, the agency is built around flexible commitment terms rather than long lock-in contracts, and our results speak for themselves: we've generated £8M+ from paid ad campaigns, grown LinkedIn audiences by over 1,300%, and secured hundreds of qualified B2B leads through paid search for our clients in a 6-month period.

Colne Digital is a specialist Google Ads and PPC agency based in Colchester, Essex, helping businesses across the UK generate more leads, increase sales and maximise their return on advertising 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.

"Everything has changed and nothing has changed": Ben Foster, The SEO Works
The CEO of The SEO Works on taking charge of an agency he was once a client of, why it chose employee ownership over a sale, and how it gets itself cited in AI search.

"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.
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.