Discover the top SEO agencies in United Kingdom. Compare services, reviews, and find the perfect agency for your business.
London, United Kingdom
Operating from London, this practice positions itself as a fractional Marketing Director for UK SaaS, MSP and technology firms, working across start-…
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Marketing Kings is a UK-based digital marketing agency specialized in delivering comprehensive marketing solutions tailored to the unique needs of bu…
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Glasgow, United Kingdom
Based in Glasgow, this agency works with B2B small and medium-sized businesses across Scotland, including Edinburgh and Aberdeen. Founded in 2014, th…
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Hertford, United Kingdom
Marketing Mouse is a small digital marketing agency based in Hertford, Hertfordshire, positioned to serve businesses in the county and the wider Lond…
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Leeds, United Kingdom
Operating out of Leeds, Marketing Optimised is a small digital marketing consultancy working with businesses across both B2B and B2C sectors. Structu…
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Leeds, United Kingdom
Based in Leeds, this small digital marketing agency works with a team of no more than ten people, positioning itself around an outcome-first approach…
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Lytchett Matravers, United Kingdom
Based in Lytchett Matravers, England, Marketing Organised is a small agency (team of 1-10) working with clients across hospitality supply, ethical br…
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Cardiff, United Kingdom
A small marketing agency based in Cardiff, Wales, Marketing Purks works with businesses across sectors, including third-sector organisations, on mark…
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Chesire, United Kingdom
Marketing Signals is a small digital marketing agency based in Cheshire, England, operating with a team of between one and ten people since 2007. The…
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Birmingham, United Kingdom
A small marketing studio based in Birmingham, Marketing XP Ltd works with small and medium-sized enterprises looking to build an online presence and…
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Thornton Heath, United Kingdom
Based in Thornton Heath, in the UK, MarketingBuckle is a small digital agency (team of 1-10) founded in 2024 that positions itself against the fragme…
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Kingston upon Thames, United Kingdom
Based in Kingston upon Thames, MarketingTech works with small and medium sized businesses across the UK, including accountants, HR consultancies, co-…
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Edinburgh, United Kingdom
Based in Edinburgh at Arthur Street, Marketspan Ltd. has operated since 2007 as a small digital agency, with a team of between one and ten people, wo…
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Manchester, United Kingdom
Markustudio Ltd trades as MKS Studio, a freelance web design operation run by Markus, founder and creative lead, based in Manchester and working with…
View ProfileStaffordshire, United Kingdom
Marley Creative is a Staffordshire-based digital marketing agency specialized in providing a comprehensive suite of marketing services tailored to me…
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Marriage is a leading brand development agency specializing in marketing, digital solutions, and website development. We focus on strategic communica…
View ProfileLONDON, United Kingdom
Founded in 2016 and based in London, Martexy Media Group is a small digital marketing firm working with a team of up to ten specialists. Its stated f…
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Battle, United Kingdom
Based in Battle, England, Martlet Studio is a small web agency working with businesses that want a bespoke online presence rather than an off-the-she…
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Corby, United Kingdom
Based in Corby, England, Massive Startup is a small team, sized between one and ten people, working with new and existing entrepreneurs who are setti…
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UK, United Kingdom
Matchbox Media is a UK-based digital marketing agency specialized in delivering comprehensive online solutions tailored to the unique needs of busine…
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The complete migration playbook: what to freeze before launch, how to build a redirect map that actually holds, what to test on the staging site, and how to read the first eight weeks after go-live.
2026-08-02 · 12 min read
How B2B search really works: bottom-of-funnel pages before blog volume, comparison and alternatives content, product-led assets, and attribution that survives a six-month cycle.
2026-08-02 · 11 min read
When template-generated pages work, when they get ignored, and how to build a programmatic set that survives quality updates: real data, real demand, real internal linking.
2026-08-02 · 11 min read
This directory lists 3,907 agencies in United Kingdom, spread across 918 cities. 3,443 of them publish a direct contact (email or phone). The best-represented cities are London (722), UK (191), Manchester (123).
| Team size | United Kingdom | What it means |
|---|---|---|
| 1-10 | 2,948 (75%) | One contact, often the founder. Responsive, limited capacity. |
| 11-50 | 429 (11%) | Specialists per discipline. The most common trade-off. |
| 51-200 | 10 (0%) | Several teams, formal process, higher budgets. |
| 200+ | 22 (1%) | International structure, enterprise accounts. |
Across the 3,907 agencies in this country: SEO (94%), Web Design (65%), SEA/PPC (50%), Social Media (47%), Content Marketing (44%), Web Development (38%). SEO leads with 3,655 agencies.
Stated engagement floors in United Kingdom range from $1,000+ to $100,000+. The most common is $1,000+ (953 agencies). That figure is an entry floor, not a price: it says what size of engagement the agency will take on, which stays the fastest filter for ruling out the ones that do not match your scale.
The 3,907 agencies on this page are ordered by how complete their listing is, not by payment: nobody buys a position here. The information comes from each agency's own website, checked as live. An agency can claim its listing to correct or complete it.
Should you pick an agency based in United Kingdom? Proximity matters most for local SEO and the language your content is written in. Here, English and Spanish are the most declared working languages. For an international site, where the agency sits matters less than its experience in your market.
Small or large agency? 75% of agencies here have fewer than ten people, against 32 above fifty. A small team means direct access to the people doing the work; a large one absorbs heavier programmes without depending on one person.
What to check before signing? Ask for measured results on a site comparable to yours, who actually does the work, and what happens when the contract ends: deliverables and access must stay yours. An agency that will not show its method is selling a black box.
