3SIX5 Digital are a digital marketing agency based in Kent. We have worked on hundreds of website builds, rebuilds & optimisation. We'd love to work with you and create a digital masterpiece, that will help your business digitally evolve. Contact Us Today. 3SIX5 Digital are a digital marketing agency based in Kent. We have worked on hundreds of website builds, rebuilds & optimisation. We'd love to work with you and create a digital masterpiece, that will help your business digitally evolve. Contact Us Today.