Discover the top SEO agencies in United Kingdom. Compare services, reviews, and find the perfect agency for your business.
Liverpool, United Kingdom
Kaleto Digital operates from Baltic Creative in Liverpool and works with small and medium-sized businesses across the UK and internationally. Its cli…
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Birmingham, United Kingdom
Operating from a studio in Birmingham with a view of the city skyline, Kalexiko is a small web design and SEO team that has worked with organisations…
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Kameleon Agency is a creative growth agency focused on fueling ideas and driving success for organizations. They specialize in outcome-driven design…
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Birmingham, United Kingdom
Operating from Birmingham, England, this practice is run by a single full-stack developer and digital marketer, Darren Kandekore, who works with UK b…
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London, United Kingdom
Based in London, with a further office in Greater Manchester, Kanoote Soft is a small team offering both digital marketing and bespoke software devel…
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Nelson, United Kingdom
Based in Nelson, England, with additional presence spanning London, Brussels, Bologna and Amman, Karam Media operates as a media and advertising agen…
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Brightons, United Kingdom
Based in Brightons, near Falkirk, Karbon Designed is a small web design and digital marketing team serving local businesses across Falkirk, Stirling…
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Llandudno, United Kingdom
Based in Llandudno, Karen Thomas Web Design North Wales works with small and medium-sized businesses across Conwy, Denbighshire, Anglesey, Colwyn Bay…
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Ilford, United Kingdom
Based in Ilford, East London, KashTag Media is a small digital marketing agency working with startups and businesses across the UK. Founded in 2025,…
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St Albans, United Kingdom
Based in St Albans, England, this small team of one to ten people has worked since 2009 as a Concrete CMS Certified Partner, specialising in websites…
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Edinburgh, United Kingdom
A small web development team based in Edinburgh, Scotland, Katana works with startups and small organisations rather than large enterprises, having c…
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United Kingdom
Katanya, founded in 2011 and based in the United Kingdom, works as an extension of in-house digital marketing and recruitment teams rather than a con…
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Gawsworth, United Kingdom
Based in Staffordshire, with a listed address in Gawsworth, Katatomic is a small web design and development agency working with businesses across the…
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London, United Kingdom
Based in London, KAU Media Group works as a full-service digital marketing agency with a small team serving businesses across a range of sectors, inc…
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Lichfield, United Kingdom
Based in Lichfield, near Birmingham, Kaweb is a small digital agency working across strategy, marketing, development and hosting for businesses in se…
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United Kingdom
Founded in 2020 and based in the United Kingdom, KAYBE is a small marketing agency, with a team of 1-10, working with businesses that need additional…
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United Kingdom
Founded in Birmingham in 2018, Kazi Marketing Group positions itself as a go-to-market execution agency working with businesses ranging from startups…
View ProfileSheffield, United Kingdom
KB Marketing is a UK-based freelance social media strategist with over 10 years of experience. The agency specializes in crafting high-converting con…
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Herne Bay, United Kingdom
Based in Herne Bay, this Kent web design agency works with businesses across Canterbury, Herne Bay and the wider region, alongside longer-standing re…
View ProfileLondon, United Kingdom
With offices in central London and a second studio in Finchley, KD Web Digital Agency works with a small team on digital marketing for healthcare, e-…
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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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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.
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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.
