Discover the top SEO agencies in United Kingdom. Compare services, reviews, and find the perfect agency for your business.
Uxbridge, United Kingdom
Founded in 2016 and based in Uxbridge, Webhike Ltd is a small digital media agency serving startups and established businesses across London and the…
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London, United Kingdom
Webix Web Developers is a small web design and SEO team based in London, working with startups and small businesses across the UK, including London a…
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Cardiff, United Kingdom
Based in Cardiff and trading since 2010, Webjects is a small studio (team of 1-10) working across Wales and the wider UK. Clients span the private an…
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Penarth near Cardiff, United Kingdom
Based in Penarth, Vale of Glamorgan, this small agency works with clients across Cardiff, Barry, Bridgend and the surrounding areas, alongside custom…
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Leighton Buzzard, United Kingdom
Based in Leighton Buzzard, England, this small team specialises in bespoke website and web-based system development, with more than 25 years of profe…
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Blackburn, United Kingdom
Based in Blackburn, England, Weblinx has operated since 2004, working with businesses seeking to improve their visibility on Google. The agency is le…
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Harrow, United Kingdom
Based in Harrow, England, this small team builds websites and Shopify stores for UK small businesses and local service providers that want a professi…
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Bicester, United Kingdom
Based in Bicester, England, Webmart is a marketing agency founded in 2009 that combines print, mail and digital services for a broad client base span…
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United Kingdom
A small UK-based digital growth agency, WebMotion Media works with ambitious businesses seeking websites and marketing that are built to compound res…
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United Kingdom
Based in Essex, Webolicious is a small team working with clients across the UK and beyond, serving both local businesses that can meet in person and…
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UK, United Kingdom
WeBoost is a UK-based digital marketing agency specialized in delivering comprehensive solutions that empower businesses to thrive in the digital lan…
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Oldham, United Kingdom
Based in Oldham, WebPact serves businesses across Oldham and Greater Manchester, working with a range of local companies including healthcare-related…
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UK, United Kingdom
Webphoria is a UK-based digital marketing agency specialized in delivering comprehensive online solutions tailored to the unique needs of businesses…
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United Kingdom
Webpraxis is a UK-based digital marketing agency specializing in providing comprehensive online solutions tailored to meet the unique needs of busine…
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Edgware, United Kingdom
Based in Edgware, North London, WEBPRO works with small and mid-sized businesses across sectors including financial advisers, mortgage brokers, finan…
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Manchester, United Kingdom
Based in Manchester at Wilson Business Park, WebProjectUK is an independently owned digital marketing agency with a small team serving small to mediu…
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Liverpool, United Kingdom
Based at Hatton Garden in Liverpool, Webrevolve is a small digital agency, with a team of between one and ten people, working on websites and digital…
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Liverpool, United Kingdom
From offices at Hatton Garden in Liverpool, Webrevolve International is a small digital agency, with a team of between one and ten people, working on…
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London, United Kingdom
Webscape is a London-based digital marketing agency specialized in delivering comprehensive online solutions tailored to the unique needs of business…
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Sheffield, United Kingdom
Based in Sheffield since 1999, Websell Masters Ltd. has worked with businesses across Yorkshire for over 18 years, currently managing more than 100 w…
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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.
