BrainZ Digital

In short: BrainZ Digital is a search marketing agency offering SEO, AI search and Technical SEO, based in London. It has a team of 11–50 people.

SEO and AI search agency for B2B, SaaS, ecommerce and cybersecurity brands

BrainZ Digital is a London SEO agency, based in North London, that works on organic visibility in both traditional search results and AI-generated answers. It describes its offer as strategic judgement rather than a list of deliverables, with audits, briefs and blog content folded into its engagements.

Its services span technical SEO, content-led SEO, generative engine optimisation, website migrations and recovery from search penalties. The team also handles digital PR, citations and link building, and runs a paid search service alongside its organic work. It publishes free tools, including an SEO cost calculator and a generator for llms.txt files.

The agency mainly works with established B2B and direct-to-consumer brands, with dedicated offers for SaaS, ecommerce, cybersecurity, startup and international businesses. It frames success in commercial terms rather than ranking positions, and says it aims to work alongside in-house teams rather than simply for them, shaping content to each brand's voice.