Discover the top SEO agencies in United Kingdom. Compare services, reviews, and find the perfect agency for your business.
Leamington Spa, United Kingdom
Based in Leamington Spa, Central England, Designmc Ltd is a branding agency and design consultancy operating as a small, full-service team covering s…
View ProfileOsgodby, United Kingdom
Based in Selby, North Yorkshire, Designpix is a small design and website studio operating since 2006, serving businesses across Yorkshire and beyond…
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Weymouth, United Kingdom
Based in Weymouth, Dorset, DesignStack works with businesses across the UK on website design, branding and graphic design projects. The team is small…
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Windsor, United Kingdom
Based in Windsor, United Kingdom, DesignThen is a small studio founded in 2023 that works with mission-driven brands seeking custom web design and de…
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Denbighshire, United Kingdom
Based in St. Asaph, Denbighshire, Designweb has served North Wales businesses since 1998 as a small, full-service digital agency with a team of up to…
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Bearsden, United Kingdom
Based in Bearsden, near Glasgow, this small web design team works with small and medium-sized businesses across Glasgow, Central Scotland and further…
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Kendal, United Kingdom
Based in Kendal, Cumbria, Designworks is a B Corp certified web and brand agency founded in 2007. It works with purpose-driven businesses, charities,…
View ProfileLondon, United Kingdom
Desire Group International is a dynamic provider of professional services focused on driving revenue growth through innovative sales solutions. We sp…
View ProfileUK, United Kingdom
Destrukt is a UK-based digital marketing agency specialized in delivering innovative and results-driven solutions for businesses looking to enhance t…
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Rochester, United Kingdom
Developer Rocket is a small web development team based in Rochester, Kent, working with businesses across Kent and the wider UK. The team, led by a s…
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United Kingdom
Based in Kington, United Kingdom, Developerz Hub UK is a small digital creative agency that has operated since 2012, working with businesses seeking…
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St Albans, United Kingdom
Based in St Albans, England, Devenia is a small team (1-10 people) working with businesses whose websites are not generating enough enquiries. The we…
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London, United Kingdom
Based in London, DevifyHub operates as a white-label web development partner for agencies, designers and studios rather than working directly with th…
View ProfileMarchwood, United Kingdom
Based in Marchwood, near Southampton in Hampshire, England, Devise Marketing works with businesses in competitive and challenging industries, includi…
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Burton upon Trent, United Kingdom
Based in Burton upon Trent, England, Devlinko is a small digital agency, with a team of up to ten people, founded in 2021. Despite its UK base, its w…
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Summerfield Street, United Kingdom
Based in Sheffield, United Kingdom, Devomni is a small software and digital services provider working with startups and enterprises across sectors in…
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Leeds, United Kingdom
Based in Leeds, DevStack is a small team of senior software engineers, sized between one and ten people, working with UK businesses that need custom…
View ProfileUnited Kingdom
Dezign Fanatics is a UK-based digital marketing agency specialized in delivering innovative and tailored marketing solutions to businesses seeking to…
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United Kingdom
Based in Cardiff, Dezign Mart is a small UK digital marketing agency working with a team of up to ten people. It positions itself as an affordable op…
View ProfileWarrington, United Kingdom
Based in Stockton Heath, Warrington, Cheshire, Diagram Design & Marketing is a small design and marketing agency working with clients across sectors…
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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.
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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.
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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.
