Top SEO Companies in the UK Ranked

Impression is a performance marketing company trading as Impression Digital Limited, with offices in Nottingham, London, Manchester and New York. Its search work spans technical, ecommerce and international SEO, and sits next to paid media, digital PR and conversion rate optimisation rather than being sold off on its own.

Marketing the Change is a Liverpool based digital marketing and development company working in data driven SEO since 2012. As well as search engine optimisation the team handles technical SEO audits, site speed, ecommerce and custom website builds, hosting and ongoing maintenance, on the view that the website itself is the asset search performance depends on.

Rise at Seven calls itself a search first organic media company, planning content across SEO, social, digital PR and AI search. It runs three offices serving Manchester, London and New York, and has shifted a good chunk of its offer towards AI visibility and generative engine optimisation.

The SEO Works is employee owned, established in 2009 and based in Sheffield with offices in London and Leeds. It states a team of more than 80 specialists covering organic, technical and AI search, generative engine optimisation, digital PR, paid media and web development.

Journey Further is a performance marketing company organised around three things: marketing science, organic media and paid media. It works from Leeds, Manchester and London, with a further office in New York.

NOVOS is an ecommerce specialist company working on SEO, AI engine optimisation, digital PR and paid media for online retail brands. Its stated focus is Shopify work, site migrations, and understanding how customers actually search and compare before they buy anything.

Cedarwood Digital is a Manchester company covering SEO, digital PR and link building alongside paid media. It has picked up recognition at the UK Search Awards and the European Search Awards, including Best Small Integrated Agency for 2025/2026 and awards for search campaigns in properly competitive verticals.

Embryo is a full service digital marketing company based in Manchester. It combines SEO and digital PR with paid search, paid social, content, web development and conversion rate optimisation for clients across the UK and further afield.

Builtvisible is a London company specialising in SEO, content and digital PR, covering organic strategy, campaign work and consultancy on digital transformation. It now runs as part of Brave Bison rather than independently.

Screaming Frog is a search marketing company based in Henley-on-Thames, Oxfordshire. Outside its client work it is best known for building the Screaming Frog SEO Spider, the website crawler half the industry runs, and the Log File Analyser. Its client services cover technical SEO, link building, digital PR, paid search and AI search optimisation.

Croud is a London headquartered digital marketing company. Search runs through everything it does rather than sitting on the menu as a standalone service, and its published client work includes getting brands visible inside AI search results.

Dark Horse is a Manchester company trading as Dark Horse Digital Ltd. Its search work covers technical SEO, international SEO, local SEO and site migrations, with dedicated ecommerce services for Shopify and Magento stores. Generative engine optimisation is on the list too.

CandidSky is a Manchester digital marketing company founded in 2006, working with B2B and B2C brands alike. Its search services take in technical SEO, international SEO, ecommerce SEO, local SEO, AI SEO and website migrations, plus digital PR and paid advertising.

Hallam is a digital marketing company based in Nottingham. It groups its work under organic search, AI search, digital strategy and content marketing, with analytics and measurement running alongside all of it.

Bring Digital is a Manchester company working across SEO strategy, technical SEO, digital PR and content marketing. Its search and digital PR teams work the same accounts together rather than being sold as two separate engagements.