Discover the top SEO agencies in United Kingdom. Compare services, reviews, and find the perfect agency for your business.
Sheffield, United Kingdom
Based in Sheffield, England, Hydra Creative is a small digital marketing agency, operating with a team of between one and ten people since 2009. The…
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London, United Kingdom
A small London-based team, Hype Insight Ltd works with businesses looking to scale ad spend into measurable revenue growth, positioning itself around…
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Belper, United Kingdom
Based in Belper, near Derby, Hyphen Creative is a British creative design studio working across web design, branding and digital marketing for a mix…
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London, United Kingdom
Based in London, this agency works with businesses across the United Kingdom, Italy, and Spain, with a particular focus on local businesses, medical…
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London, United Kingdom
An SEO consultancy operating from London, I-AM-SEO is run as a one-person practice serving small and mid-sized businesses across a range of sectors,…
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Manchester, United Kingdom
Based in Manchester, I-COM works with local and national businesses across sectors including B2C and B2B e-commerce, legal, recruitment, education, u…
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Peterborough, United Kingdom
Based in Peterborough, England, i3MEDIA is a full-service digital agency working with startups, eCommerce brands and charitable organisations. Its cl…
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Kendal, United Kingdom
Based in Kendal, Cumbria, this small team works with businesses ranging from hotels and hospitality venues to ecommerce retailers and local trade sup…
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London, United Kingdom
Operating since 1998, IC Design is a small London-based creative agency working from Soho meeting space with registered offices on York Street. It fu…
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United Kingdom
Operating in the United Kingdom with a presence in cities including Birmingham, Glasgow, Milton Keynes and London, IC SEO Agency works with local and…
View ProfileLangstone, United Kingdom
Based at Merlin House in Langstone Business Park, Newport, this agency has operated since 2004 and describes itself as working with businesses across…
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Down, United Kingdom
Based in Holywood, County Down, Icarus Communications works with businesses across the UK and Ireland, supporting both new ventures and established c…
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ICE Creates is a behaviour change agency with over 25 years of experience in delivering insight-driven marketing and healthy lifestyle services. They…
View ProfileBradford, United Kingdom
Ice Digital is a specialist WordPress agency based in Bradford, offering a range of digital marketing services including SEO and PPC. They focus on a…
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Chorley, United Kingdom
From a base on St Georges Street in Chorley, Lancashire, Iced Graphics works as a full-service branding, creative, web design and marketing agency, w…
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London, United Kingdom
Based in London, Iceni is a small studio (1-10 people) that has operated since 2001, working with ambitious companies, public sector bodies, and orga…
View ProfileUnited Kingdom
ICM Creative is a UK-based digital marketing agency specializing in innovative and cutting-edge solutions tailored to meet the unique needs of their…
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Gloucester, United Kingdom
Based in Gloucester, ICON.net Limited works with marketing, IT, sales and office managers across organisations that need bespoke websites and custom…
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London, United Kingdom
Based in London, this small digital marketing consultancy has been operating for 13 years, working with businesses across a range of sectors includin…
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Leeds, United Kingdom
Based in Leeds, ICS-digital LLP works as an international marketing agency serving brands that require SEO, content and digital PR delivered across m…
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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.
