Omnicom Health Group

World's largest healthcare marketing and communications network by revenue and agency breadth

Omnicom Health Group (OHG) is the healthcare marketing division of Omnicom Group, operating as the largest dedicated healthcare communications network globally. It brings together a portfolio of specialized agencies covering medical education, professional promotion, consumer health advertising, market access, and digital health engagement. Its agency brands include TBWA\WorldHealth, DDB Health, Patients & Purpose, Palio, Intouch Group, and others, each serving distinct segments of the healthcare marketing ecosystem. OHG serves pharmaceutical, biotechnology, medical device, and consumer health companies by delivering integrated campaigns across the full spectrum of healthcare audiences — from healthcare professionals (HCPs) and payers to patients and caregivers. The group combines deep scientific and regulatory expertise with creative and data-driven capabilities, enabling clients to navigate the complex compliance landscape of healthcare advertising while driving measurable brand outcomes. As part of Omnicom Group, OHG benefits from access to enterprise-scale data, technology, and media buying infrastructure, including Omnicom's Precision Marketing and data platforms. Its scale, breadth of specialist agencies, and integrated service model position it as a dominant force in healthcare advertising, competing with WPP Health Practice, IPG Health, and Publicis Health for global pharmaceutical marketing budgets.