Discover the top SEO agencies in United Kingdom. Compare services, reviews, and find the perfect agency for your business.
Poole, United Kingdom
Based in Poole, this small web design and development team works with businesses across Bournemouth, Poole and the wider Dorset area, ranging from lo…
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Southampton, United Kingdom
Based in Southampton, England, South Digital works as a website partner for growing teams, building, migrating, improving and operating sites across…
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Tunbridge Wells, United Kingdom
Based in Tunbridge Wells, Kent, Southpaw is a creative agency working with challenger brands rather than established market leaders. The team, number…
View ProfileLondon, United Kingdom
Sova Infotech is a leading web development and SEO agency based in London. They specialize in creating bespoke websites and providing exceptional dig…
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Cheltenham, United Kingdom
Based in Cheltenham, England, this small digital agency works with eCommerce and purpose-led brands, focusing on companies with sustainability or eth…
View ProfileLondon, United Kingdom
A small team based in Richmond-Upon-Thames, London, Space Galleon works with businesses and brands seeking a digital presence built around websites,…
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United Kingdom
Based in Pontprennau, Cardiff, Space on White is the freelance operation of Jeff Lewis, set up in 2010 and serving clients across Cardiff, Bridgend,…
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London, United Kingdom
Based in London, this agency focuses exclusively on B2B companies looking to generate qualified leads and grow revenue through their marketing pipeli…
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London, United Kingdom
Founded in London in 2018, SpaceWorks specialises exclusively in Squarespace website design and development, working as an official Squarespace Exper…
View ProfileLondon, United Kingdom
Based at Cornhill in London, with an additional US address in Wyoming, Spark SEO is a small team working with brands aiming for national reach across…
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Berry Hill Industrial Estate, United Kingdom
Based in Droitwich Spa, Worcestershire, at Berry Hill Industrial Estate, Spiderzone has operated for 25 years as a full service marketing and design…
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Leeds, United Kingdom
Based in Marshall Street, Leeds, Spike is a small digital agency (1-10 staff) working with organisations across sectors including sport, travel and u…
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Corby, United Kingdom
Based in Corby, Northamptonshire, Spike Design and Marketing works with small and local businesses across the Corby and Kettering area, extending its…
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Edinburgh, United Kingdom
Spirit Media is Edinburgh’s leading independent media buying agency, specializing in strategic media planning and buying. With a focus on both tradit…
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Brading, United Kingdom
Based in Brading on the Isle of Wight, Spirivo is a small, family-run creative studio working with therapists, counsellors, coaches and other wellnes…
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Sarisbury Green, United Kingdom
Based at Universal Marina in Sarisbury Green, Southampton, this small Hampshire team supports businesses across the UK rather than confining itself t…
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London, United Kingdom
A founder-led digital marketing agency serving businesses across Glasgow, Edinburgh, Aberdeen and Dundee, as well as clients elsewhere in the UK and…
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London, United Kingdom
Based on Clifton Street in Shoreditch, London, Splendid Communications is a small communications agency, with a team of between one and ten people, d…
View ProfileUnited Kingdom
Splinter is a digital agency specializing in various online marketing services. They focus on delivering tailored solutions to enhance brand visibili…
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Huddersfield, United Kingdom
Based at Wellington Mills in Huddersfield, Splitpixel Creative Ltd. has operated since 2008 as a small team working across web design, branding and d…
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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.
