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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.
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By ownership.
The only directory that maps which agencies belong to WPP, Publicis, Omnicom, and other holding groups - and which stand alone.
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Agencies that have claimed and verified their listing. Refreshed weekly.

Nine Stones provides a complete, hands-on marketing solution tailored for established B2B businesses, manufacturers, distributors, and professional services. Built to bridge the gap between expensive in-house hires and unpredictable agencies, Nine Stones pairs every client with a senior strategist and execution team to handle strategy, content, SEO, web site maintenance and paid channels under one fixed-fee subscription.

Shaped By is a UK-based creative studio and brand consultancy specialising in bold, distinctive branding for B2B technology companies. The agency works with ambitious tech organisations-from high-growth startups to global enterprises-across sectors including cybersecurity, AI, cloud infrastructure, data platforms, and enterprise software. Shaped By helps brands break through market sameness by tra

SK is a global, full service marketing agency, with specialisms in financial services and technology. We support our clients in building and adapting marketing strategies for success. We deliver advertising, SEO & GEO, design, copy, email marketing, PR, research, strategic consulting, web design, CRM and data strategy, social media marketing and much more to act as an extension of your team. We ar

The SEO Works is a highly respected authority in search marketing, GEO, AI search, web development, and pay-per-click social services for distinguished brands and thriving SMEs in the UK. With a fifteen-year long track record, this agency remains committed to a single objective: boosting businesses' online customer base.

Marketing Agency in London To help your business grow, Sharkfold digital marketing company makes bold decisions. We provide tailored tactics to reach your target audience and achieve your business goals. Increase brand visibility, leads, and sales with our services. We strive to serve our clients well. We'll learn about your business and goals and utilize our knowledge to help you succeed. SEO, PP

We’re the brains behind the brands, without the bloat. No neon signs. No ping-pong tables. No senior team pitching you just to hand it over to the juniors. Just bold ideas, brutal honesty, and big-brand brains without the big agency ego.
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.

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.

Top 10 Businesses Headquartered in Reading
Discover the top 10 businesses headquartered in Reading, the Thames Valley town that hosts the UK arms of Microsoft, Oracle, Bayer, PepsiCo and more.

Top 10 Businesses Headquartered in Glasgow
Discover the top 10 businesses headquartered in Glasgow, from FTSE 250 Weir Group to The Macallan owner Edrington. Explore Scotland's largest business hub.
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.