Discover the top SEO agencies in United Kingdom. Compare services, reviews, and find the perfect agency for your business.
Hemel Hempstead, United Kingdom
Based in Hemel Hempstead, at Chancerygate Business Centre, this small creative and print studio works with a mix of national and local organisations.…
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London, United Kingdom
Based in London, IHS is a small digital agency, sized at 1-10 team members, working across web design, development and digital marketing. The company…
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United Kingdom
Based in London, this small digital agency works with businesses seeking to establish or expand an online presence through web development, digital m…
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Leeds, United Kingdom
Based in Leeds, this agency has operated since 1999 as an integrated marketing agency working across brand, social, PR and digital disciplines. Its c…
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Mildenhall, United Kingdom
Based in Mildenhall, United Kingdom, ilumi SEO is a small team working with businesses and agencies that need websites and search visibility built on…
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Leeds, United Kingdom
Based in Leeds, iM Web Designs is a small web design and digital marketing team working with local and small businesses that need a website built or…
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Nottingham, United Kingdom
Based in Nottingham and working with clients across the UK, Imaginaire is a small agency, with a team of between one and ten people, that has operate…
View ProfileSandiacre, United Kingdom
Based in Sandiacre and covering the UK, Imaginaire Digital works as a Shopify-focused agency for ecommerce brands, including clients in retail, whole…
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Leamington Spa, United Kingdom
Based in Leamington Spa and working from The Forty4, a co-working space it shares with other creative businesses, Imaginate Creative is a small studi…
View ProfileAberdeen, United Kingdom
Imajica Brand Evolution specializes in creating and evolving brands through thoughtful design and smart strategies. They focus on enhancing customer…
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Derbyshire, United Kingdom
ImDigital is a small web design and digital marketing team based in Chesterfield, Derbyshire, founded in 2017. It works with businesses across the UK…
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Immerse is an experiential agency specializing in creating memorable brand experiences through events, exhibitions, and product sampling. With a focu…
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Surrey, United Kingdom
Operating from Surrey since 2001, Immersive Media Ltd. is a small web design and SEO agency that also serves London-based clients, working with busin…
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Impact Design & Marketing is a creative agency specializing in innovative marketing solutions. They focus on enhancing brand presence and driving eng…
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London, United Kingdom
Founded in London with a second office in Singapore, Imperial Leisure works with clients across the globe, positioning itself around brands that want…
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London, United Kingdom
Based in Wapping, East London, with a second office in Buenos Aires, Impero works with consumer brands looking to move quickly and connect with cultu…
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Nottingham, United Kingdom
Based in Nottingham, Impression is a marketing agency founded in 2012 that works with organisations across multiple sectors, operating with a team of…
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Cavendish, United Kingdom
Based in Suffolk, Improve Marketing works with companies across the UK, describing itself as a full-service agency built around a small core team sup…
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London, United Kingdom
Based in Bromley, on the London and Kent border, Improve My Search Ranking is a small SEO specialist working with service-based businesses, from smal…
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Bognor Regis, United Kingdom
Based in West Sussex, with a registered office in Bognor Regis and a main office in Littlehampton, Improve Position is a small SEO agency working wit…
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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.
