Discover the top SEO agencies in United Kingdom. Compare services, reviews, and find the perfect agency for your business.
UK, United Kingdom
Slightly Different is a UK-based digital marketing agency specialized in delivering innovative and tailored marketing solutions that resonate with th…
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Londonderry, United Kingdom
Based in Derry/Londonderry, this small team has worked with small businesses since 2011, positioning itself as a digital growth partner for owners wh…
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London, United Kingdom
Based in Kent, United Kingdom, Smart Call Solutions is an inbound call center and customer service outsourcing company established in 2022. It works…
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United Kingdom
Based in Wirral, Smart Connecting is a small digital marketing agency working with businesses looking to build local visibility and generate leads on…
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London, United Kingdom
Based in Croydon and serving small and medium-sized businesses across Croydon and Surrey, Smart Cow Marketing operates as a small team offering websi…
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Staffordshire, United Kingdom
Based in Staffordshire, this agency has focused on the construction industry since 2009, working with clients across tiling, flooring, adhesives, con…
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Billingshurst, United Kingdom
Based in Billingshurst, West Sussex, Smart Monkey Marketing Ltd operates as a B2B digital marketing agency working with marketing teams in sectors su…
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Blackburn, United Kingdom
Based in Blackburn, Lancashire, Smart Search SEO works with both established and newer businesses, ranging from small operations to larger organisati…
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Penzance, United Kingdom
Based in Penzance, Cornwall, Smart SEO Cornwall works with construction, trade and renewable energy businesses across Cornwall and the wider UK. The…
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Brookdale, United Kingdom
Smart Web Ranker operates as a small SEO and PPC agency serving businesses in London and internationally, working with companies that want to build o…
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Glasgow, United Kingdom
Based in Glasgow since 2014, this small agency (a team of under ten) works with businesses across retail, property, healthcare, financial services, c…
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London, United Kingdom
SME Media is a web design and digital marketing agency with offices in Holborn, London, and Staines-upon-Thames, Surrey, serving small and medium-siz…
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Birmingham, United Kingdom
Based in Birmingham, this consultancy works exclusively with UK universities, colleges and educational bodies, having worked with over 40 institution…
View ProfileLondon, United Kingdom
SMMart is a London-based digital marketing agency specialized in delivering comprehensive social media management and marketing solutions. With a mis…
View ProfileManchester, United Kingdom
SMMart Media Ltd is an award-winning social media management and online marketing company based in Manchester. They specialize in providing bespoke s…
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London, United Kingdom
Operating from Hatton Wall in London, Snack Media works within the sports publishing sector, acting as a connector between online sports communities…
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Basingstoke, United Kingdom
Based in Basingstoke, Hampshire, this small agency combines marketing, design and web development for businesses across Hampshire and the South East…
View ProfileUK, United Kingdom
Snazzy Media is a UK-based digital marketing agency specialized in delivering innovative and tailored marketing solutions that resonate with the uniq…
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Stourbridge, United Kingdom
Based in Stourbridge, England, Snippet Digital is a small SEO consultancy founded in 2013, operating with a team of up to ten people. The agency is l…
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Sheffield, United Kingdom
A small creative and digital agency based in Sheffield, England, working with a team of up to ten people. The company's stated experience includes wo…
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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.
