Discover the top SEO agencies in United Kingdom. Compare services, reviews, and find the perfect agency for your business.
London, United Kingdom
Based in London's City Reach building on Greenwich View Place, Gluz Digital is a small SEO-focused agency working with D2C and B2B companies, includi…
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UK, United Kingdom
GM Design is a UK-based digital marketing agency specialized in delivering innovative design and marketing solutions tailored to the unique needs of…
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Larkhall, United Kingdom
Based in Larkhall, GM SEO Services works with Scottish businesses seeking search visibility without long-term contracts. The agency is run as a small…
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London, United Kingdom
A small team based in London specializes in search visibility that spans both traditional engines and AI-driven discovery tools. GMK Digital works wi…
View ProfileNewent Gloucestershire, United Kingdom
Based in Newent, Gloucestershire, GMT Solutions Limited is a small IT support and technology business serving both home users and businesses across G…
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London, United Kingdom
A search marketing agency working with direct-to-consumer ecommerce brands, Go Amplify is listed in London but describes its base as Barnsley, South…
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London, United Kingdom
Founded by Alex Mungo, who brings over 15 years of SEO experience, this London-based agency works with businesses across the UK, ranging from small c…
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London, United Kingdom
Based in Clerkenwell, London, Go Up works with organisations ranging from startups and SMEs to larger brands and international governments, across se…
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Birdwell, United Kingdom
Based in Birdwell, near Barnsley and Sheffield, Go Web is a small, independent web design and SEO company serving businesses across the Yorkshire reg…
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Stanstead Abbotts, United Kingdom
Based in Ware, Hertfordshire, Go Agency has operated as a full-service creative agency since 2012, working with local businesses across a range of se…
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Brighton, United Kingdom
Based in Hove, near Brighton, GOAT Digital Ltd is a small digital marketing agency established in 2015, operating as a B Corp certified company. It w…
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United Kingdom
Based in Letchworth, Hertfordshire, GoBig Digital is a small digital marketing and website development agency working with small and medium-sized bus…
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Castle Donington, United Kingdom
Based in Castle Donington in the East Midlands, GoGo Marketing Ltd is a small marketing, PR and advertising team of between one and ten people workin…
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Newton Mearns, United Kingdom
Based in Newton Mearns near Glasgow, GoGoChimp is a small conversion-focused agency run by founder Chris McCarron, working with e-commerce and SaaS b…
View ProfileLeeds, United Kingdom
Based in Leeds with an additional presence in London, GOLD79 is a communications agency working across consumer and corporate sectors, with client wo…
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Goldman Global is an SEO company based in Edinburgh, Scotland, serving businesses across Scotland and the wider UK. The agency traces its origins to…
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Cardiff Bay, United Kingdom
Based in Cardiff Bay, Gomie Design is a small digital agency serving businesses across Cardiff and Wales that need websites, apps and ongoing online…
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London, United Kingdom
Good Signals is a small digital marketing agency based in London, founded in 2018, working with a team of up to ten people. It describes its clients…
View ProfileUnited Kingdom
Goodman Associates is a UK-based digital marketing agency specializing in SEO and web development. They focus on delivering tailored solutions to enh…
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London, United Kingdom
Based at the Blue Fin Building in Southwark, London, Goodstuff Communications is a media planning and buying agency working with a team of 11-50 peop…
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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.
