S4 Capital is a tech-led, new age, new era, digital advertising and marketing services company with a strategy is to build a purely digital advertising and marketing services business for global, multinational, regional, local clients and millennial-driven influencer brands. It is integrating businesses in three practice areas: first-party data, digital content, digital media planning and buying, along with an emphasis on "faster, better, cheaper" executions in an always-on consumer-led environment, with a unitary structure. S4Capital was founded in 2016 and is based in London, England.