Find the best SEO agencies in London. Compare top-rated SEO companies and choose the right partner for your business.
London, United Kingdom
Up Analytics is a London-based digital marketing agency specialized in delivering data-driven marketing solutions that empower businesses to achieve…
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London, United Kingdom
A small team based in London works with UK businesses looking to grow visibility through search, offering a mix of SEO, pay-per-click and web design…
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London, United Kingdom
Based in London, with additional presence in Georgia and Poland, Uprising Agency works with mature startups, venture funds, family offices and other…
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London, United Kingdom
Urwin Digital is a London-based digital marketing agency specialized in delivering comprehensive online solutions that drive measurable results for b…
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UWP Group is a full-service digital marketing agency based in London, specializing in SEO, PPC, web design, and social media. They focus on deliverin…
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London, United Kingdom
Based in London, Van der Kraken Ltd is a freelance conversion rate optimisation practice run by Dario van der Kraken, working with clients around the…
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London, United Kingdom
VCCP is a London-based digital marketing agency specialized in transforming brands through a challenger mindset. With a mission to redefine the marke…
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London, United Kingdom
Based in London, Vebu Creative Agency works with start-ups and SMEs across the capital and mainland Britain, drawing on an in-house team supplemented…
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London, United Kingdom
Vegatech UK is a small web design and mobile app development company based in London, operating with a team of 1-10 people. It works with businesses…
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London, United Kingdom
Verkeer is a small digital marketing agency based in London, working as an independent partner for brands across sectors including B2B, finance, heal…
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London, United Kingdom
A small eCommerce consultancy and paid media agency based in London, Vervaunt works with retail and eCommerce businesses ranging from ambitious indep…
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London, United Kingdom
From an office on Clifton Street in London, Viaduct Generation works as a search and discovery consultancy focused on what it terms "AI-era" growth,…
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London, United Kingdom
Based in London, Vidify works as an outsourced video production partner for business directories and SME-focused digital marketing companies rather t…
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London, United Kingdom
Based at 124 City Road in London, Viorix Digital Solutions is a small team working with UK startups and enterprises on web and digital projects. The…
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London, United Kingdom
Based in Fulham, London, Vizability.io is a small web design and digital marketing team working with small and medium-sized enterprises. The agency p…
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London, United Kingdom
Based in Shoreditch's Tech City on Old Street, VizionOnline Limited is a small web and digital marketing agency serving businesses across various sec…
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Based in London, Vooba is a small digital marketing agency that works primarily with small businesses, positioning itself as an alternative to hiring…
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London, United Kingdom
Based in London, Vouch Global is a small agency, structured around a compact team, that combines performance media with creative production. Its clie…
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London, United Kingdom
Based in London, Vrinsoft UK operates as an IT company working with startups and enterprises across the UK, delivering projects that span mobile, web…
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London, United Kingdom
Based in Royal Docks (E16), East London, Walden Waves is a small digital marketing agency founded in 2025 that works with businesses across London se…
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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
726 agencies are listed in London, 19% of the 3,907 recorded in United Kingdom — the country's largest city by agency count. 659 publish a direct contact.
In London: SEO (97%), SEA/PPC (54%), Social Media (51%), Web Design (50%), Content Marketing (48%). An agency that ticks every box is rarely good at all of them: look at what it puts first.
Proximity genuinely matters in two cases: local SEO — Google Business profile, reviews, "near me" queries — and needing to meet in person. For an e-commerce or SaaS site targeting the whole country, an agency in London holds no structural advantage over one elsewhere in United Kingdom. The useful criterion stays experience with your type of site.
| Team size | London | Typically |
|---|---|---|
| 1-10 | 526 (72%) | Solo consultant or small studio. Direct access, limited capacity. |
| 11-50 | 108 (15%) | Separate roles: technical, content, link building. |
| 51-200 | 3 (0%) | Structured accounts, process, formal reporting. |
| 200+ | 8 (1%) | International group, enterprise accounts. |
The 726 agencies on this page are ordered by how complete their listing is, never by payment: no position is for sale here. The information is collected from each agency's own website, checked as live. An agency can claim its listing to correct it, complete it, or connect its Search Console data.
What does SEO cost in London? Stated engagement floors here start at $1,000+. That figure says what size of engagement the agency takes on, not what yours will cost: the quote depends on the state of the site, the competition and the volume of content to produce.
Small local agency or large firm? 72% of agencies in London have fewer than ten people. At that size you talk directly to whoever does the work — the main advantage, and the main limit the day the engagement grows.
How do you check an agency before signing? Ask for a measured case on a site comparable to yours, with before and after figures. Check who will actually do the work. And get it in writing what stays yours when the contract ends: content, access, accounts.
All agencies in United Kingdom · Agencies by country · SEO guides
