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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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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.
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Disciplines grouped by buyer goal. From SEO and PPC to UX, branding, and programmatic media.
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Filter agencies who understand your sector. From AI to FMCG, healthcare to luxury.
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Local expertise where you need it, national reach where you want it. UK-wide.
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Agencies that have claimed and verified their listing. Refreshed weekly.

Creative & Digital Growth Agency - London, UK Prox Digital Agency - Pros for growth is a London-based creative and digital growth partner for brands ready to scale with clarity. Founded by CEO Ali Zafar Azad, he leads the agency with a strategist's mindset, helping businesses that need more than just execution: they need direction. With 10+ years of experience and 500+ projects delivered worldwide

Superrb is a creative digital studio designing flagship websites and Shopify Plus ecommerce experiences for ambitious brands. We combine brand thinking, UX strategy and technical expertise in one senior in-house team, creating digital experiences that engage customers and support long-term growth. Part creative studio, part digital consultancy, we're built for brands that take design seriously.

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,

LION+MASON is a top-rated, strictly senior-led UK Digital Product Consultancy, specialising exclusively in the design, modernisation, and scaling of complex enterprise products and high-transaction platforms. Operating at the intersection of human-centred design and commercial strategy, the agency partners with global brands such as Johnson & Johnson, Best Western, and Cambridge University Press to drive scalable product growth and measurable business performance. Rejecting the traditional agency pyramid, LION+MASON connects clients directly with seasoned industry veterans and operates a unique, tech-agnostic "Architect Model"—remaining independent of the software engineering build phase to provide completely objective, best-fit technical partnerships without vendor lock-in. Consistently ranked by Clutch as one of the top UX Agencies in the UK and a leading global research firm, LION+MASON eschews traditional sales pitches in favour of a zero-barrier, free "Light Briefing," offering enterprise leaders immediate, expert perspective on how to bridge internal skill gaps, build competitive advantage, and architect market-leading digital products.

Active Internet Marketing (UK), a Stamford-based digital marketing agency, distinguishes itself with a broad array of services. These encompass expert SEO, tailored PPC, professional web design, and bespoke social media marketing, all designed to expand and enhance our clients' customer reach. Demonstrating an unwavering dedication to research and development, as signified by a substantial £450K investment in the last 2 years.

Mark-Making is an independent strategic and creative agency specialising in financial services. We help forward-thinking FS brands, from lenders and building societies to fintechs, insurers and wealth managers, identify their advantage and bring it to life through brand strategy and positioning, visual and verbal identity, and campaigns and content. It matters because financial services has the power to change lives but too often communicates as if it doesn't. We exist to fix that, making financial services as human in its expression as it is in its impact, so our clients turn their advantage into attention and action in complex, regulated and competitive markets.
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.
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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.