A strong SEO strategy can help businesses increase organic visibility, attract relevant website visitors, and build a sustainable online presence. From technical optimization and content strategy to digital PR and AI search optimization, SEO agencies in the UK offer a wide range of services for businesses at different stages of growth.
Below are five SEO companies in the UK offering services across organic search, digital marketing, content, technical SEO, online visibility and so much more.
1. Sentosa Ltd.
CEO: Christopher Lier
Based in: London, United Kingdom
Services: SEO, Digital PR, B2B Growth Consulting, AI Demand & Revenue Generation
Sentosa Ltd is a UK-based B2B growth consultancy firm focused on helping brands grow through search marketing and next generation demand generation technologies. The company combines SEO strategy with broader B2B marketing expertise to help businesses improve their visibility and generate qualified opportunities with increased revenue.
Its SEO services cover strategy, implementation, and detailed performance reporting, supported by more than 10 years of experience across relevant SEO channels. Sentosa also provides digital PR and AI driven demand generation helping businesses build authority through high authority link mentions, article publications, listicles, and citations.
Beyond traditional search, Sentosa focuses on helping brands adapt to the changing search landscape, including visibility across Google and AI-powered search platforms. The company is based in London and works with clients across the UK, US, EMEA, and APAC.
2. Figment Agency
Founder & Managing Director: Steve Grant
Based in: London, United Kingdom
Services: SEO, AI Search Optimization, Digital PR, PPC, Web Design & Development, Website Maintenance
Figment Agency is a UK digital agency that helps businesses improve their online visibility through search, digital marketing, and website development. The agency has been operating since 2006 and has evolved its offering alongside changes in search technology.
Its services include traditional SEO, AI search optimization, PPC advertising, digital PR, web design and development, website maintenance, and SEO maintenance. Its current SEO offering focuses on sustainable organic visibility, while its AI Search service is designed around visibility across platforms such as ChatGPT, Perplexity, and Google’s AI search experiences.
3. Blue Array
Founder & CEO: Simon Schnieders
Based in: London, United Kingdom
Services: SEO, Generative Engine Optimization, Digital PR, Content, International SEO, Technical SEO, SEO Audits, CRO
Blue Array is a specialist SEO and digital PR agency founded in 2015. The agency focuses heavily on organic search and works with businesses looking to develop structured, data-led search strategies.
Its services include organic search consulting, technical SEO, SEO audits, international SEO, digital PR, content, generative engine optimization, conversion rate optimization, app store optimization, and SEO training. The company also offers specialized solutions designed to support businesses adapting to changes in search and AI-driven discovery.
4. ClickSlice
Founder & CEO: Joshua George
Based in: London, United Kingdom
Services: SEO, Ecommerce SEO, Link Building, Local SEO, SEO Consulting, SEO Training, PPC, Email Marketing
ClickSlice is a London-based SEO and ecommerce growth agency founded by Joshua George. The agency initially focused on SEO before expanding its services to cover a broader range of ecommerce growth requirements.
Its SEO services include keyword research, competitive analysis, on-page SEO, off-page SEO, link building, local SEO, ecommerce SEO, and SEO consulting. ClickSlice also provides PPC and email marketing services as part of its broader digital growth offering.
5. Web Choice
CEO: Rijo Paul
Based in: Bristol, United Kingdom
Services: SEO, Web Design, Web Development, AEO, GEO, PPC, Social Media Management, Hosting, Software Development
Web Choice is a full-service digital agency providing SEO alongside web development and digital marketing services. The company works with businesses that need both search visibility and the technical infrastructure required to support their online presence.
Its current services include SEO, web design, web development, answer engine optimization (AEO), generative engine optimization (GEO), PPC, social media management, hosting, software development, and technical support. The company also provides ecommerce development and bespoke web and application development.
