Find the best SEO agencies in London. Compare top-rated SEO companies and choose the right partner for your business.
London, United Kingdom
Wani Creative works with organisations across sectors such as financial services, publishing, property management and life sciences, taking on projec…
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London, United Kingdom
We Are Fi is a London-based digital marketing agency specialized in delivering innovative and tailored marketing solutions that drive measurable resu…
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London, United Kingdom
A family-run web design and SEO studio founded in 2009, based in Hertfordshire with a presence in London, the agency works primarily with small busin…
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London, United Kingdom
Web Alliance is a London-based digital marketing agency specialized in delivering comprehensive online solutions tailored to meet the unique needs of…
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London, United Kingdom
Founded in 2018 and based in London, Web Buds is a small web design agency working with businesses, brands, startups and individual entrepreneurs. Th…
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London, United Kingdom
Based in London, this web design agency works with businesses across the UK that need a custom-built website to showcase their offering, build trust…
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London, United Kingdom
Based in London, this small agency (team of 1-10) works with businesses ranging from local tradesmen to national companies, as well as smaller organi…
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London, United Kingdom
Web Hands Marketing works with small and medium-sized businesses across the UK and Spain, with a base in Soho, London and an additional address in Vé…
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London, United Kingdom
Based in London, this small collective describes itself as a group of creative technologists working across web1, web2 and web3, operating on an invi…
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London, United Kingdom
Webaxoo is a digital services company with a London office, though its site material also references operations tied to Orlando, Florida, indicating…
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London, United Kingdom
Based in London, WebBang works with businesses, healthcare and dental providers, and automotive and tuning specialists, describing itself as building…
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Webdesign7 is a small, London-based studio operating from Bermondsey, working with a team of professional designers and developers rather than a larg…
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London, United Kingdom
Based in London, Webfuel Digital works with ecommerce brands, with particular attention to Shopify store owners looking to scale their online sales.…
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London, United Kingdom
Based in Soho, London, Webheads has been building websites since 1994, working with startups, SMEs and global brands across sectors including finance…
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London, United Kingdom
Webix Web Developers is a small web design and SEO team based in London, working with startups and small businesses across the UK, including London a…
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London, United Kingdom
Webscape is a London-based digital marketing agency specialized in delivering comprehensive online solutions tailored to the unique needs of business…
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London, United Kingdom
Operating from Shelton Street in London, with a further base in Westerham, Kent, Website Consultants Ltd has worked on the web since 1996. The small…
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London, United Kingdom
A website studio based in Essex, this agency works with businesses of varying sizes across the UK, with a particular focus on eCommerce and general b…
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London, United Kingdom
From an office on Farringdon Road in London, Wedex UK operates as a small internet marketing agency, with a team of 1-10 people, founded in 2019. The…
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London, United Kingdom
Operating from London and serving businesses across the UK, Wedowebapps Ltd works with startups, growing companies, and enterprises across sectors in…
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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
