Brainlabs

In short: Brainlabs is a search marketing agency offering SEO, PPC and CRO, based in London. It has a team of 201+ people.

Independent media agency for paid media, SEO and measurement

Brainlabs is an independent, founder-led media agency with a London office and teams across Europe, the Americas and Asia-Pacific. It works with brands in retail and ecommerce, financial services, travel, consumer tech, B2B software and healthcare.

Its work spans paid media and organic visibility. On the paid side it covers search, social, programmatic and connected TV, retail media, influencer marketing and performance creative. Its visibility practice brings together SEO, digital PR and content strategy, with a focus on how brands appear in both search engines and AI assistants. It also offers conversion rate optimisation, data services and Google Marketing Platform support.

Brainlabs leans heavily on testing. It runs engagements through a three-stage framework of analysis, scaling and ongoing development, and it uses its own AI agents trained on past experiments. Measurement is a service in its own right, covering attribution, incrementality testing and marketing mix modelling, and the agency reports against business outcomes such as margin and customer value rather than platform metrics alone.