400 Communications Ltd

Based in London's Clerkenwell area, 400 Communications is a certified B Corp creative agency working across strategic branding and design, with more than 25 years of experience despite the company's more recent formal establishment. The agency describes itself as forging long-term creative partnerships and positions its work around purpose-led branding, taking on clients who are redefining their positioning, reinventing their brand, or refreshing a visual identity. The small team, structured around design directors, project management, client services, and account direction, blends the outlook of a larger agency with the hands-on style of a boutique studio. Services centre on branding and graphic design, supported by web design, UX/UI design, content marketing, social media marketing, advertising, public relations, and SEO. The stated approach is agile, collaborative, and strategically led, with an emphasis on research to uncover insights that inform creative direction before design work begins. Becoming a certified B Corp in 2021 introduced a formal framework — covering governance, workers, community, environment, and customers — against which the agency measures the impact of its business decisions, and this framework is described as continuing to shape how client work and internal operations are approached. The agency reports scoring in the top 5% of B Lab's Best for the World assessment for Workers.