Accelerate is the educational arm of Open City, the organisation that runs the notable Open House festival in London. They aim to bridge the diversity gap within the architecture sector by offering mentorship programmes for secondary school students. The first step in our process was to organise a session with their alumni and mentors to meet them and get insight into what makes Accelerate unique. Based on those conversations, we developed the branding and designs for the series of logomarks of fists branding a key. The multiplicity of logomarks in different colours is intended to represent the diversity of the people in the programme. The key binds the sub-brand to the main Open City brand and represents the young people grabbing the keys to the city.