Discover the top SEO agencies in United Kingdom. Compare services, reviews, and find the perfect agency for your business.
Newcastle-under-Lyme, United Kingdom
Based in Newcastle-under-Lyme, Staffordshire, Red 2 Design works with businesses across Stoke-on-Trent and the surrounding area on print and web desi…
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Godalming, United Kingdom
Based in Godalming, Surrey, this digital marketing agency has been operating since 2003 and works with a small, dedicated team on projects spanning B…
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London, United Kingdom
Based in Waterloo, London, with meeting space available at North Greenwich's Design District, Red Balloon Web is a small team led by Chris Dann, a we…
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Stafford, United Kingdom
Based in Stafford, Red Box Web Design works with B2B businesses across the UK, despite its regional base. The agency has operated for more than 18 ye…
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Salford, United Kingdom
Based in Salford, Red C Marketing has operated since 1994, giving it a long history in direct mail before expanding into digital channels. The agency…
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Manchester, United Kingdom
Founded in 2013 and based in Manchester City Centre, with an additional office in the UAE, Red Cow Media is a digital marketing agency working with c…
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Sheffield, United Kingdom
Based in Sheffield, Red Dragon Webmaster is a small team offering digital services to businesses across the UK, with stated coverage extending to the…
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Aberdeen, United Kingdom
Founded in 2003 by a Chartered Engineer, Red Evolution is a small marketing agency based in Aberdeen, Scotland, working with engineering and technolo…
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Wembley, United Kingdom
Based in Wembley, this small digital agency (team of 1-10) works with local and small-to-medium businesses across sectors including fitness retail, a…
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Buckingham, United Kingdom
Based in Buckingham, England, Red Giraffe operates under the Giraffe Digital brand and focuses its work on B2B professional services companies, with…
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Sawston, United Kingdom
Based in Sawston, England, Red Graphic has been working in graphic design and marketing since 2004, building on a longer track record of over 20 year…
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Cardiff, United Kingdom
Based in Cardiff, Wales, this small digital marketing agency describes itself as a boutique operation working with a select number of clients rather…
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Sheffield, United Kingdom
Small businesses in Sheffield and the wider South Yorkshire area make up the client base of Red Kite SEO, a digital marketing company operating from…
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Richhill, United Kingdom
Based in Richhill, Northern Ireland, Red Rhino Interactive works primarily with small and medium-sized organisations across Northern Ireland, includi…
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Ipswich, United Kingdom
Based in Ipswich, Suffolk, Red Rocket Digital works with startups and established businesses across East Anglia that need a web presence built from s…
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Cardiff, United Kingdom
Managed by Damian Burgess, Red Squirrel Marketing is a small Welsh agency serving clients across Cardiff, Swansea, Aberystwyth, Newport and extending…
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London, United Kingdom
Based in Clerkenwell, East London, Red Stone is a small independent creative agency with a team of one to ten people. It works primarily with chariti…
View ProfileLeeds, United Kingdom
Redbeck is a digital branding agency based in Leeds, specializing in creating exceptional web products. They offer services in design, e-commerce, an…
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Birkenhead, United Kingdom
Based in Birkenhead, England, RedCore Digital is a small digital marketing agency with a team of up to ten people, working with businesses that want…
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Livingston, United Kingdom
Reddishpink Media is based in Livingston, West Lothian, with an additional office in Edinburgh, and describes itself as a creative marketing communic…
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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.
