Mediaocean Prisma

De facto industry standard system of record for omnichannel media buying and financial management at major agencies globally

Mediaocean Prisma is the flagship media buying workflow and financial management platform from Mediaocean, one of the most established infrastructure providers in the advertising technology ecosystem. Originally launched in 2012 as the core Mediaocean platform (evolving from the legacy Donovan Data Systems and MediaBank merger that formed Mediaocean), Prisma serves as the system of record for media buying operations — handling everything from campaign planning and order management to billing, reconciliation, and financial reporting across linear TV, digital, print, out-of-home, and radio. Prisma is deeply embedded in the workflows of major holding company agencies and independent media agencies globally. It connects buyers with publishers and vendors through standardized electronic data interchange, enabling automated order transmission, invoice matching, and payment processing. The platform is particularly dominant in traditional and linear media buying, where it has long been considered the de facto industry standard, though it has expanded significantly into digital and cross-channel workflows over the years. In the broader AdTech ecosystem, Prisma occupies a critical infrastructure role — sitting at the intersection of media planning, buying, and finance. It integrates with a wide range of partners including DSPs, ad servers, research providers, and ERP systems. Mediaocean as a whole processes over $200 billion in annualized media spend through its platforms, with Prisma representing the core workflow engine for much of that volume. Its market position is reinforced by deep agency relationships, regulatory compliance capabilities, and the high switching costs associated with replacing a system of record.