The 296 Best SEO Agencies in the UK (2026)
The highest-rated UK SEO agencies, from London boutiques to full-service northern powerhouses.
Featured Agencies
LMNts Marketing
Marketing Automation & Lead Generation Experts
Codious Technologies – WordPress Core Contributors & SEO Specialists | Leading Digital Marketing Agency London
UI/UX , SEO, PHP, Wordpress, Laravel, Magento
EPR Marketing
Here to help you smash your online marketing goals
Cogworks
Umbraco PlatinumPartners in London
Modo25 Limited
Digital Marketing. From the inside out.
Growth Partners Media
No bullsh*t SEO agency trusted by 73+ brands
Smarketa
Professional SEO Agency
Preface Studios
A WordPress agency in Surrey
ElasticSEO
Simplifying SEO for Small and Medium Businesses
GFC Tech
Start Growing Your Business Online Today!
Find the right United Kingdom agency
Browse our full directory or get personally matched with 2–3 vetted United Kingdom agencies that fit your goals and budget.
Underline Agency
An award-winning full-service digital agency
Spyndle
AI Search For B2B SaaS
E-Innovate
Humanising The Digital World
Andy Drinkwater Ltd.
Freelance SEO Consultant
Torchbox
Digital Products and Marketing for good
ChannelDoubler
Digital Marketing for Results
Codesky.
Web design for all budgets
SEO in Motion
Powering your Business Growth
Whitworth SEO
SEO Consultancy, Training & Auditing, Manchester
Candy Marketing
Web Design, Development & Digital Marketing Agency
Find your perfect United Kingdom agency today
Browse our hand-vetted directory or submit a brief and we'll personally match you with the best-fit agencies — free, with no obligation.