Find the best SEO agencies in London. Compare top-rated SEO companies and choose the right partner for your business.
London, Canada
Based in London, Ontario, Strange Ideas is a small graphic design studio founded in 2006 that works with clients across a range of industries and sec…
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London, Canada
Based in London, Ontario, tbk works as a full-service agency serving Canadian brands across industries, with client examples spanning nonprofit organ…
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London, Canada
Operating out of London, Ontario, Tim D. Hodges works as an independent digital marketing consultant and SEO specialist serving small and mid-sized b…
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London, Canada
Based in London, Ontario, this small digital marketing team works with local businesses looking to increase online visibility, generate leads, and gr…
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London, Canada
Based in London, Ontario, Workbench Media is a small team (1-10 people) that builds websites and runs advertising campaigns specifically for contract…
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London, Canada
Zach Clarke operates as a one-person SEO and digital marketing practice based in London, Canada, though the business is built around serving clients…
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London, Canada
Based in London, Ontario, ZOO Media Group has worked with organizations across North America since 2005, spanning healthcare, retail, business-to-bus…
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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
27 agencies are listed in London, 2% of the 1,793 recorded in Canada — the country's 12th city by agency count. 26 publish a direct contact.
In London: SEO (96%), Web Design (67%), SEA/PPC (67%), Web Development (52%), Social Media (44%). 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 Canada. The useful criterion stays experience with your type of site.
| Team size | London | Typically |
|---|---|---|
| 1-10 | 22 (81%) | Solo consultant or small studio. Direct access, limited capacity. |
| 11-50 | 5 (19%) | Separate roles: technical, content, link building. |
The 27 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? 81% 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.
