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The only directory that maps which agencies belong to WPP, Publicis, Omnicom, and other holding groups - and which stand alone.
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A glimpse of what's in the index.
Agencies that have claimed and verified their listing. Refreshed weekly.

Hello Starling is a Cardiff-based media planning and buying agency that prioritises result-driven strategies. Uniquely identified by its dedication to delivering quantifiable results for its clients, Hello Starling utilises data-led insights to customise campaigns for optimal engagement and influence. With a diversity of media specialities, encompassing TV, cinema, radio, outdoor, press, digital,

Reactive specialises in serving elite SMEs and small-scale corporate businesses. Leveraging a wealth of expertise in B2B design, specifically within the finance, tech, property, and media sectors, Reactive is at the forefront of crafting inventive solutions rooted in fundamental marketing techniques to propel clients towards their deserved business achievements. Each project commences with a metic

The digital results agency with a complete focus on making your online activity work harder than ever before. If the name rings a bell, that's because we're the sibling of creative agency J2. We were born in a world of big ideas but have evolved an unshakeable focus on digital results. From growing brands to driving sales, every campaign is geared to improve the bottom line. We optimise PPC, Paid

1284 provides industry award-winning B2B and G2B marketing and PR campaigns which champion East Midlands R&D and growth. Our work raises your profile, takes you into new markets, recruits skilled people to your team, and wins you investment.

Viorix Digital Solutions is a London web design agency helping startups and growing businesses build a stronger online presence. We design and develop bespoke websites and e-commerce stores that are fast, secure, user-friendly and built to perform. From UX and web development to launch, SEO and ongoing support, our experienced London-based team delivers a complete website design service tailored to your goals. Whether you need a new website, a full redesign or a custom online store, we create results-focused sites designed to attract more visitors, generate leads and help your business grow. Looking for a reliable website designer in London? Get in touch today.

Today his practice is structured around what clients actually need - strategic clarity through Experience Strategy, ongoing guidance through Design Partnership, and reliable delivery through Design Operations.
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.

"The hardest adjustment in going from employee to entrepreneur": Paula Fernández, Advance
The founder of Advance on leaving 24 years at holding-group media agencies, learning to live with uncertainty, and why agencies will need more thinkers and fewer doers.

7 of 13 UK agencies say generative AI is now in most of their client work
We asked UK marketing agencies how much of their client work involves generative AI. 13 answered, most through their founder or director, and not one said it doesn't use it.

"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.
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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.